System and method for object metrology

A system includes a time of flight (TOF) camera or similar device, a processor coupled to the TOF camera, and a sensor. The processor receives TOF data from the sensor. The TOF data is related to an object within range of the TOF device. The processor calculates dimensions of the object using the time of flight data.

Methods of detecting and treatment of cancers using Scutellaria barbata extract

An extract of Scutellaria Barbata D. Don is effective in the arrest of cancer cell growth. The extract of Scutellaria Barbata D. Don may be used as a therapeutic treatment for patients who have been identified as having cancer. In some situations, a patient is identified as having a type of cancer by detecting the presence of a biomarker for that cancer in the patient's system and by further determining the level of that biomarker in the patient's system. If the level of the biomarker is above a predetermined threshold level for that biomarker, the patient may be diagnosed with cancer. Subsquently, treatment using an extract of Scutellaria Barbata D. Don may begin. Biomarkers of interest in the detection of the presence of metastitic breast cancer include 8-oxoguanine and lactate dehydrogenase.

Airway Pressure Release Ventilator

A system and method for ventilating includes a holding tank, such as, for example, a medical sealed apparatus, for storing of gases. The holding tank stores at least pressured oxygen, for example O2, though the holding tank may store a pressurized blend of oxygen and air. This blend may include a 50-50 mix of oxygen and air. The pressure applied to the gases in the holding tank may include a range from 5 pounds force per square inch to 20 pounds force per square inch. The blend of oxygen and air, for example, under pressure in the holding tank, the system and method for ventilating of the present disclosure no longer requires an electronic mechanical system, such as, for example, a pump or motor on the inhalation control and the exhalation control to the ventilating system and method.

Impaired subject detection system

A system for detecting abnormal eye movement in a subject to indicate possible impairment of the subject. The subject may be presented with a visual pattern to observe. The visual pattern may cause the subject's eyes to move. Images of the eye movements may be captured. An eye motion pattern may be computed from the images. The eye motion pattern may be classified relative to other eye motion patterns or a guide. The classification may indicate whether there appears to be an abnormal movement of the eye and thus an impairment of the subject. An identification of the subject may be obtained according to a biometric from the images and used to retrieve the subject's baseline eye motion pattern. A comparison of the computed eye motion pattern and the baseline eye motion pattern may indicate whether there is abnormal movement of the eye and thus an impairment of the subject.

METHODS AND COMPOSITIONS FOR THE TREATMENT OF CANCER

Isolated compounds and combinations of isolated compounds isolated from Scutellaria barbata D. Don are effective in the generation of reactive oxygen species, induction of DNA damage and induction of apoptosis in cancer cells. The compounds and combinations may be prepared as pharmaceutical compositions for administration to mammals, such as humans, for the treatment of solid cancers, such as epithelial cancers. Such epithelial cancers include breast cancer and ovarian cancers.

SYSTEM FOR AUTOMATIC SOCIAL NETWORK CONSTRUCTION FROM IMAGE DATA

A system for constructing a social network structure from image data. A number of image sensors or cameras may be placed in various areas of a large facility having much throughput of many people, such as an airport. Images from the cameras may indicate an event. The event may be activity recognized by video analytics of the system. Video analytics may detect, track and associate people, faces and objects in the images. The analytics may provide activity recognition from images. A dynamic social network may be constructed from information provided by the video analytics. Analysis of a constructed social network may reveal further information which can be available for improving dynamic social network construction.

MULTIPLE TARGET TRACKING SYSTEM INCORPORATING MERGE, SPLIT AND REACQUISITION HYPOTHESES

A tracking system having a video detector for associating observations of blobs and objects and deriving objects' or blobs' paths. Hypotheses may be computed by the system for merging, splitting and reacquisition of the observations. There may be objects tracked among the observations, and best paths selected as trajectories of corresponding objects. The observations may be placed in a sliding window containing a series of observations inferred from a collection of frames for improving the accuracy of the tracking (or data association). The processed observations and data may be represented graphically.

ESTROGENIC COMPOUNDS AND THEIR METHODS OF USE

Isolated compounds and combinations of isolated compounds isolated from Epimedium grandiflorum Morr. are estrogenic, and can be used to treat one or more symptoms of menopause and/or ER-positive cancer. The compounds and combinations may be prepared as pharmaceutical compositions for administration to mammals, such as humans, for the treatment of solid cancers, such as epithelial cancers. Such epithelial cancers include breast cancer, uterine cancer, cervical cancer, ovarian cancer, vulvar cancer, endometrial cancer.

System and method for synchronizing multiple oscillators

A system and method for synchronizing an oscillator with multiple phases at a desired phase angle difference. A relative measure of a phase angle difference between two phases permits each phase to be controlled to obtain the desired phase angle difference. The various phases may have different inherent frequencies that are synchronized to a common frequency such as an average of the different frequencies.

FLYBACK CONVERTER WITH SECONDARY SIDE REGULATION

Disclosed examples include flyback converters, control circuits and methods to facilitate secondary side regulation of the output voltage. A primary side control circuit operates a primary side switch to independently initiate power transfer cycles to deliver power to a transformer secondary winding in a first mode. A secondary side control circuit operates a synchronous rectifier or secondary side switch to generate a predetermined cycle start request signal via a transformer auxiliary winding to assume secondary side regulation and to cause the primary side controller to initiate new power transfer cycles.

ESTROGENIC EXTRACTS FOR USE IN TREATING VAGINAL AND VULVAR ATROPHY

Estrogenic extracts of Astragalus membranaceus, Astragalus mongholicus, Anemarrhenae asphodeloides and Achyranthes bidentata are provided. Also provided are methods of using said extracts to achieve an estrogenic effect, especially in a human, e.g. a female human. In some embodiments, the methods include treatment of climacteric symptoms. In some embodiments, the methods include treatment or prevention of osteoporosis.

POWER SUPPLY SYSTEM WITH NON-LINEAR CAPACITANCE CHARGE-PUMP

One example includes a power supply system. The system includes a switch system comprising a switch that is configured to generate a switching voltage at a switching node in response to an input voltage. The system also includes a non-linear capacitance charge-pump coupled to the switching node and being configured to provide an output current in response to the switching voltage. The output current can have an amplitude that varies non-linearly with respect to an amplitude of the switching voltage. The switch system further includes an output stage configured to generate an output voltage on an output node in response to the output current. 1. A power supply comprising:a switch system including a switch node; a variable capacitor having a first terminal coupled to the switch node, and a second terminal; and', 'a diode having an anode coupled to the second terminal of the variable capacitor, and a cathode coupled to an output terminal; and, 'a charge pump circuit includingan output stage coupled to the charge pump circuit, and configured to generate an output voltage at the output terminal in response to a current from the second terminal to the anode.2. The power supply of claim 1 , wherein the variable capacitor includes a transistor having a drain as the first terminal claim 1 , a source as the second terminal claim 1 , and a gate coupled to the source.3. The power supply of claim 2 , wherein the transistor is a first transistor claim 2 , and the output stage includes:a second transistor having a drain coupled to the source of the first transistor, a drain coupled to a ground terminal, and a gate;a Zener diode having an anode coupled to the gate of the second transistor, and a cathode coupled to the output terminal; anda resistor having a first end coupled to the anode of the Zener diode, and a second end coupled to the ground terminal.4. The power supply of claim 3 , wherein the first transistor includes a first n-channel transistor claim 3 , and the second ...

Nyasol and Analogs Thereof for the Treatment of Estrogen Receptor Beta-Mediated Diseases

Estrogenic compositions comprising nyasol and analogs thereof are provided. Also provided are methods of using said extracts to achieve an estrogenic effect, especially in a human, e.g. a female human. In some embodiments, the methods include treatment of climacteric symptoms. In some embodiments, the methods include treatment of estrogen receptor positive cancer, such as estrogen responsive breast cancer. In some embodiments, the methods include treatment or prevention of osteoporosis.

Pulse width modulated power conversion apparatus and methods using capacitor-charge feedback

A power converter apparatus includes a transformer having a primary winding and a secondary winding, a switching circuit operative to couple and decouple the primary winding of the transformer to a power source, and a control circuit that controls the switching circuit. A feedback circuit is coupled to the output port of a power transfer network and to the control circuit. The feedback circuit generates a current responsive to an output voltage at an output port of a power transfer network, charges a capacitance responsive to the generated current, and intermittently discharges the capacitance responsive to a control signal generated by the control circuit. A modulator circuit is coupled to the feedback circuit and to the power transfer network, and selectively couples the secondary winding of the transformer to an input port of the power transfer network responsive to a voltage on the capacitance. The invention may be embodied as apparatus or methods.

Estrogenic extracts of Rheum palmatum L of the polygonaceae family and uses thereof

Extracts of various species of the Polygonaceae family have estrogenic properties. For example, aqueous and ethanolic extracts of Rheum palmatum L of the Polygonaceae family species possess estrogenic properties in both ERα+ and ERβ+ cells. These estrogenic effects include estrogen response element (ERE) stimulation as well as tumor necrosis factor (TNF) repression. Methods are provided for treating climacteric symptoms, breast and/or uterine cancer, and osteoporosis.

Liquiritigenin and Derivatives as Selective Estrogen Receptor Beta Agonists

The disclosure provides compositions comprising liquiritigenin, or derivatives, or prodrugs, useful as estrogen receptor beta selective agonists. The disclosure also provides methods of treating menopausal symptoms, and estrogen-dependent disorders, with said compositions.

User-defined virtual interaction space and manipulation of virtual configuration

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture.

Tracking system with fused motion and object detection

A detection system fusing motion detection and object detection for various applications such as tracking, identification, and so forth. In an application framework, model information may be developed and used to reduce the false alarm rate. With a background model, motion likelihood for each pixel, for instance, of a surveillance image, may be acquired. With a target model, object likelihood for each pixel of the image may also be acquired. By joining these two likelihood distributions, detection accuracy may be significantly improved over the use of just one likelihood distribution for detection in applications such as tracking.

BI-MODAL VOLTAGE CONVERTER

A bi-modal voltage converter and associated method for reducing stress on secondary rectifiers and decreasing switching losses. An embodiment of the voltage converter comprises three switches and control circuitry that is operative, upon a determination with respect to the input voltage, to select between a two-switch operation and a three-switch operation. When the input voltage is greater than a threshold value, one of the three switches is permanently turned on, while the other two switches are controlled using a pulse-width modulated (PWM) signal. When the input voltage is equal to or less than the threshold value (e.g., requiring a duty cycle greater than 50%), all three switches are controlled by the PWM signal.

METHOD AND APPARATUS FOR CALCULATING AN AVERAGE VALUE OF AN INACCESSIBLE CURRENT FROM AN ACESSIBLE CURRENT

In a power converter, a circuit determines an average value of an inaccessible current from an average value of an accessible current and a value of the operating duty cycle of the converter. A method of measuring an average value of an inaccessible current from a measured value of a current, in a power converter, by a duty cycle of a pulse width modulation (PWM) signal, representing a duty cycle of the power converter. Coupling a voltage representing the measured value to an input of a low pass filter during a time period (D) and coupling the input of the low pass filter to a reference voltage during a time period (1-D).

OVERCURRENT AND BROWN OUT PROTECTION APPARATUS

A discontinuous conduction mode (DCM) converter is provided. The converter comprises a transformer having a primary and a secondary side, an RCD network, a rectifier, a switch, and a controller. The transformer has primary side with a first primary winding and a second primary winding and has a secondary side with a secondary winding. The RCD network is coupled to the first primary winding and is adapted to receive energy from the leakage inductance of the first primary winding. The rectifier is coupled to the second primary winding. The switch is coupled between the RCD network and ground. The controller receives indicia of a rectified voltage from the rectifier, indicia of current from the switch, indicia of transformer magnetization and controls the actuation of the switch. Preferably, the controller provides an actuation signal to the switch with actuation periods that are separated from one another by an interval that allows energy within the transformer to substantially dissipate.

ADAPTIVE IRIS MATCHING USING DATABASE INDEXING

An adaptive iris matching approach for processing images of irises having a quality not sufficient for conventional non-adaptive matching approaches. Visible regions in a radial direction on an iris, without segmenting a circumferential of the iris, may be processed. A boundary of the visible region of the iris may be estimated. An iris map may be constructed with the non-visible portion of the iris masked. The iris map may be at least partially encoded. Partial codes of the iris map may be extracted to index at least portions of a database containing iris information. Irises may be retrieved from the database with an iris code as a query.

Anthraquinones and Analogs from Rhuem palmatum for Treatment of Estrogen Receptor Beta-Mediated Conditions

Compositions derived from Rheum palmatum are provided. Also provided are methods of using said extracts to induce apoptosis in specific cells, especially in a human. Provided as well are uses of the extracts of Rheum palmatum for the preparation of a medicament for the selective induction of apoptosis ...

Compositions and methods for darkening keratinous fibers

The present invention provides a cosmetic or pharmaceutical composition and methods for coating keratinous fibers, whereby the composition comprises more than 50% of at least one perfluoro compound.

Multi-transformer LLC resonant converter circuits and methods

In a first aspect, an LLC resonant converter is provided for driving a plurality of output circuits from a DC input signal. The LLC resonant converter includes: (a) an inverter circuit for converting the DC input signal to a square-wave signal; (b) an inductor network coupled to the inverter circuit; and (c) a plurality of transformers, each transformer including a primary winding and a secondary winding. The primary windings of the transformers are coupled in series, and the series-coupled primary windings are coupled in parallel with the inductor network. The secondary winding of each transformer is coupled to and provides a current to a corresponding one of the output circuits. The secondary winding currents are substantially equal, and power is processed by a single transformer between the DC input signal and each output circuit. Numerous other aspects are also provided.

SOFT SWITCHING FLYBACK CONVERTER

Disclosed examples include synchronous rectifiers and flyback converters, integrated circuits and operating methods, in which a first switch is turned on to allow current to flow for a first time period in a first direction in a transformer primary winding responsive to a first switch voltage transitioning below a first threshold, and a second switch is turned on for a second time period after the first time period to transfer energy from a secondary transformer winding to drive a load. In the same converter cycle, the second switch is again turned on for a third time period in response to a second switch voltage transitioning below a second threshold at one of a series of troughs of a resonant ringing voltage waveform across the second switch, to cause current flow in a second direction in the primary winding to discharge a capacitance of the first switch to cause the first switch voltage to transition below the first threshold to initiate a subsequent converter cycle.

Anticancer Methods Employing Extracts of Gleditsia sinensis Lam

Selective apoptotic extracts of Gleditsia sinensis Lam are provided. Also provided are methods of using said extracts to induce apoptosis in specific cells, especially in a human. Provided as well are uses of the extracts of Gleditsia sinensis Lam for the preparation of a medicament for the selective induction of apoptosis.

Anticancer Methods Using Extracts of Anemarrhena asphodeloides Bunge

Selective apoptotic extracts of Anemarrhena asphodeloides Bunge are provided. Also provided are methods of using said extracts to induce apoptosis in specific cells, especially in a human. Provided as well are uses of the extracts of Anemarrhena asphodeloides Bunge for the preparation of a medicament for the selective induction of apoptosis in a living being.

ESTROGENIC EXTRACTS OF Pueraria lobata Willd. Ohwi of the Leguminosae Family AND USES THEREOF

Extracts of various species of the Leguminosae family have estrogenic properties. For example, aqueous and ethanolic extracts of Pueraria lobata Willd. Ohwi of the Leguminosae family species possess estrogenic properties in both ERα+ and ERβ+ cells. These estrogenic effects include estrogen response element (ERE) stimulation as well as tumor necrosis factor (TNF) repression. Methods are provided for treating climacteric symptoms, breast and/or uterine cancer, and osteoporosis.

User-defined virtual interaction space and manipulation of virtual cameras with vectors

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture.

Methods and apparatus to reduce switching losses in power converters

Methods, apparatus, systems and articles of manufacture are disclosed to reduce switching losses occurring in power converters. An example a converter including an input voltage node and an output voltage node, a controller coupled to the converter, and a compensation network coupled to the converter and to the controller, the compensation network adapted to conduct a current to the converter in response monitoring a first voltage at the input voltage node being a threshold difference than a second voltage at the output voltage node.

Compositions, kits, and methods for modulating survival and differentiation of multi-potential hematopoietic progenitor cells

The invention includes compositions, kits, and methods for modulating survival and differentiation of mammalian multi-potential hematopoietic progenitor cells using a placental glycoprotein hormone of the murine prolactin family, namely either murine prolactin-like protein E or murine prolactin-like protein F. The compositions, kits, and methods described herein can be used, for example, for in vitro or ex vivo expansion of hematopoietic precursor cells or to treat a disorder associated with aberrant hematopoiesis (e.g., pre-eclampsia and thrombocytopenia).

MAGNETICALLY COUPLED DC CURRENT SENSOR

A method for measuring current includes passing a DC current through the primary side of a transformer and driving the secondary side of the transformer with an AC voltage, wherein the current in the secondary side of the transformer reaches a plateau. The current in the secondary side of the transformer is measured during the plateau, wherein the measured current is proportional to the DC current. 1. A method for measuring current , the method comprising:passing a DC current through the primary side of a transformer;driving the secondary side of the transformer with an AC voltage; andmeasuring the secondary current during a plateau, wherein the measured current is indicative of the DC current.2. The method of claim 1 , wherein driving the secondary side of the transformer comprises:increasing the amplitude of the AC voltage in response to an increase in the secondary current; anddecreasing the amplitude of the AC voltage in response to a decrease in the secondary current.3. The method of claim 1 , wherein driving the secondary side of the transformer comprises:increasing the frequency of the AC voltage in response to a decrease in the secondary current; anddecreasing the frequency of the AC voltage in response to an increase in the secondary current.4. The method of claim 1 , wherein a first portion of a cycle of the AC voltage magnetizes the secondary and wherein a second portion of the cycle of the AC voltage drives the transformer toward saturation.5. The method of claim 4 , wherein the current flow in the secondary is limited to a predetermined value during the second portion of the cycle of the AC voltage.6. The method of claim 4 , wherein the current flow in the secondary is limited to a value that is less than the saturation current of the transformer.7. The method of claim 4 , wherein the current flow in the secondary is limited to a value that is approximately the saturation current of the transformer.8. A method for measuring current claim 4 , the method ...

System and method for synchronizing multiple oscillators

A system and method for synchronizing an oscillator with multiple phases at a desired phase angle difference. A relative measure of a phase angle difference between two phases permits each phase to be controlled to obtain the desired phase angle difference. The various phases may have different inherent frequencies that are synchronized to a common frequency such as an average of the different frequencies.

MULTIMODE PWM CONVERTER WITH SMOOTH MODE TRANSITION

Control circuits and methods to operate a switch of a DC-DC converter, including an output circuit to turn the switch off to control a peak inductor current in a given switching control cycle, and a modulation circuit to implement transition mode (TM) or continuous conduction mode (CCM) operation for a given switching control cycle by causing the output circuit to turn the switch on in response to an earlier one of a first signal, that represents an inductor current of the DC-DC converter, decreasing to a reference voltage that represents a zero crossing of the inductor current for the TM operation or the first signal decreasing to a valley reference signal that represents a non-zero value of the inductor current for the CCM operation. 1. A control circuit to operate a switch of a DC-DC converter , the control circuit comprising:an output circuit configured to turn the switch off according to a first input signal, and turn the switch on according to a second input signal in successive switching control cycles to convert an input signal to an output signal; anda modulation circuit, configured to selectively operate the DC-DC converter, in a given switching control cycle, in one of a transition mode (TM) operation and a continuous conduction mode (CCM) operation according to: an error signal that represents a difference between a reference signal and a second signal that represents a controlled parameter of the DC-DC converter; and a first signal, that represents an inductor current of the DC-DC converter; the modulation circuit being configured, for a given switching control cycle, to:provide the first input signal to cause the output circuit to turn the switch off in the given switching control cycle, when the first signal is greater than or equal to the error signal; andprovide the second input signal to cause the output circuit to turn the switch on in the given switching control cycle in response to an earlier one of: the first signal decreasing to a reference ...

PROGRAMMABLE SWITCHING CONVERTER CONTROLLER

A programmable switch converter controller for a power stage with a switch, an inductor, and a diode, includes a pulse-width modulator. The pulse-width modulator is configured to: generate an on-time interval (Ton) that is fixed or proportional to a demand signal proportional to a load adapted to be coupled to an output of the power stage; generate an off-time interval (Toff) that is inversely proportional to the product of a voltage across the inductor while the switch is off and a demand signal proportional to the load; initiate Ton when Toff elapses; and initiate Ton responsive to an external trigger signal.

ESTROGENIC EXTRACTS OF Astragalus membranaceus Fisch. Bge. Var. mongolicus Bge. of the Leguminosae Family AND USES THEREOF

Estrogenic extracts of Astragalus membranaceus Fisch. Bge. Var. mongolicus Bge. of the Leguminosae Family are provided. Also provided are methods of using said extracts to achieve an estrogenic effect, especially in a human, e.g. a female human. In some embodiments, the methods include treatment of climacteric symptoms. In some embodiments, the methods include treatment of estrogen receptor positive cancer, such as estrogen responsive breast cancer. In some embodiments, the methods include treatment or prevention of osteoporosis.

Multimode PWM converter with smooth mode transition

Control circuits and methods to operate a switch of a DC-DC converter, including an output circuit to turn the switch off to control a peak inductor current in a given switching control cycle, and a modulation circuit to implement transition mode (TM) or continuous conduction mode (CCM) operation for a given switching control cycle by causing the output circuit to turn the switch on in response to an earlier one of a first signal, that represents an inductor current of the DC-DC converter, decreasing to a reference voltage that represents a zero crossing of the inductor current for the TM operation or the first signal decreasing to a valley reference signal that represents a non-zero value of the inductor current for the CCM operation.

Detection of people in real world videos and images

Systems and methods for detecting people in video data streams or image data are provided. The method includes using a plurality of training images for learning spatial distributions associated with a plurality of body parts, detecting a plurality of detections of body parts in an input image, clustering the detections of body parts located within a predetermined distance from one another to create one effective detection for each cluster of detections, and determining a position of each person associated with each effective detection. The detections of body parts can be associated with respective previously learned spatial distributions.

Biometric visitor check system

A system for biometric exclusion of certain individuals from entering a facility. A biometric exclusion system may use biometric acquisition and matching and a database to screen a large population of subjects by looking for individuals enrolled in a database. A screening approach may be used to match biometrics having sufficient quality of any individuals attempting to enter the facility, relative to biometrics of individuals stored in the database. A biometric, such as that of a face or an iris, of an individual may be obtained with the individual's knowledge or cooperation. The database may have biographical information pertinent to an individual having a biometric in the database. There may be an associated system which may be used to enroll individuals by entering their biometrics in the database.

SELF ALIGNED HALL WITH FIELD PLATE

A self aligned Hall sensor system and method are disclosed. A substrate can be provided. A Hall element and a plurality of contacts can then be formed upon the substrate wherein contacts are located in reference to one another. A field plate formed from polysilicon can then be formed upon the Hall element, wherein the field plate functions as a self-aligning mask for the plurality of contacts such that when the field plate is biased, a number of mobile carriers present at a surface of the field plate are minimized throughout the surface and up to and including the plurality of contacts, thereby minimizing asymmetry and offsets associated with the Hall element.

METHODS AND APPARATUS TO REDUCE SWITCHING LOSSES IN POWER CONVERTERS

Methods, apparatus, systems and articles of manufacture are disclosed to reduce switching losses occurring in power converters. An example a converter including an input voltage node and an output voltage node, a controller coupled to the converter, and a compensation network coupled to the converter and to the controller, the compensation network adapted to conduct a current to the converter in response monitoring a first voltage at the input voltage node being a threshold difference than a second voltage at the output voltage node. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. A circuit to reduce switching loss in a converter having an input voltage node , an output voltage node , an inductor coupled between the input voltage node and the output voltage node , a switch node between the inductor and the output voltage node and a first transistor coupled between the switch node and ground , the circuit comprising:a controller coupled to a control terminal of the first transistor; anda compensation network including:an amplifier having an output, a first input directly coupled to the input voltage node and a second input directly coupled through a resistive divider to the output voltage node;a logic gate having an output, a first input coupled to the controller and a second input directly coupled to the output of the amplifier; anda second transistor having a control terminal directly coupled to the output of the logic gate, a first current terminal coupled to the switch node and a second current terminal coupled to the output voltage node.9. The apparatus of claim 8 , wherein the compensation is adapted to conduct a current to the converter in response to a first voltage at the input voltage node being a threshold difference than a second voltage at the output voltage node.10. The apparatus of claim 9 , wherein the controller is configured to generate an enable signal to enable the second transistor in response to a ...

Simplified adaptive control method for power converters

Adaptive control method for regulating the output voltage or current of converters by causing the input current of the converter to be directly proportional to its output current (or respectively its output voltage) and inversely proportional its input voltage. In cases where the input voltage varies slowly or it is constant, the inverse proportionality to the input voltage may be omitted.

COMPOSITION FOR TREATMENT OF MENOPAUSE

A method of using an herbal extract of the a mixture of: Herba Scutellaria barbata, Radix Sophora subprostratae, Radix Anemarrhena Semen Glycine sojae, Radix Glycyrrhiza, Rhizoma Rhei, Fructus Tritici levis, Radix Astragali, Radix Rehmania, Fructus Ligustri lucidi, Semen Zyziphi spinosa, Plumula Nelumbinis, Poria cocos, Rhizoma Alismatis, Cortex Moutan radicis, Fructus Corni, Radix Achyranthis, Concha Ostrea, Radix Aspargi, Radix Pueraria, Radix Atractylodis macrocephala and Herba Epimedium, for the treatment of hot flashes associated with menopause is disclosed herein.

Method and circuit for sensing the output current of power sources

Disclosed is a method for sensing the output current of a power source by averaging and summing instantaneous current signals generated by current sense devices installed in converters fed by the said power source.

NYASOL AND ANALOGS THEREOF FOR THE TREATMENT OF ESTROGEN RECEPTOR BETA-MEDIATED DISEASES

Estrogenic compositions comprising nyasol and analogs thereof are provided. Also provided are methods of using said extracts to achieve an estrogenic effect, especially in a human, e.g. a female human. In some embodiments, the methods include treatment of climacteric symptoms. In some embodiments, the methods include treatment of estrogen receptor positive cancer, such as estrogen responsive breast cancer. In some embodiments, the methods include treatment or prevention of osteoporosis. 116-. (canceled)18. The method of claim 17 , wherein the composition comprises two or more of (a) claim 17 , (b) claim 17 , (c) claim 17 , (d) claim 17 , (e) claim 17 , (f) claim 17 , (g) and (h).19. The method of claim 17 , wherein the composition comprises three or more of (a) claim 17 , (b) claim 17 , (c) claim 17 , (d) claim 17 , (e) claim 17 , (f) claim 17 , (g) and (h); or each of (a) claim 17 , (b) claim 17 , (c) claim 17 , (d) claim 17 , (e) claim 17 , (f) claim 17 , (g) and (h).20. (canceled)21. The method of claim 17 , wherein the estrogenic effect is at least one effect selected from the group consisting of: treating or preventing at least one climacteric symptom; treating or preventing osteoporosis; treating or preventing uterine cancer; and treating or preventing cardiovascular disease.22. The method of claim 21 , wherein the estrogenic effect includes treating or preventing at least one climacteric symptom selected from the group consisting of treating or preventing hot flashes claim 21 , insomnia claim 21 , vaginal dryness claim 21 , decreased libido claim 21 , urinary incontinence and depression.23. The method of claim 21 , wherein the estrogenic effect includes treating or preventing osteoporosis.24. The method of claim 21 , wherein the estrogenic effect includes treating or preventing hot flashes.25. The method of claim 21 , wherein the estrogenic effect includes treating or preventing uterine cancer.26. The method of claim 17 , wherein the estrogenic effect does ...

CALYCOSIN AND ANALOGS THEREOF FOR THE TREATMENT OF ESTROGEN RECEPTOR BETA-MEDIATED DISEASES

Estrogenic compositions comprising calycosin and analogs thereof are provided. Also provided are methods of using said extracts to achieve an estrogenic effect, especially in a human, e.g. a female human. In some embodiments, the methods include treatment of climacteric symptoms. In some embodiments, the methods include treatment of estrogen receptor positive cancer, such as estrogen responsive breast cancer. In some embodiments, the methods include treatment or prevention of osteoporosis.

Pseudo current tracking for power supply regulation

A power supply circuit includes a regulation circuit that receives an input voltage and provides a regulated output voltage based on the input voltage. The regulation circuit includes a switch device having a switched output that generates a ripple current waveform in the current regulator to provide the regulated output voltage. A control circuit includes a pseudo current tracker (PCT) that is operatively coupled to the regulation circuit. The PCT receives a reference voltage and generates a ripple voltage waveform that is proportional to the ripple current waveform. The control circuit commands the switch device to generate the ripple current waveform based on the ripple voltage waveform such that the regulated output voltage approximates the reference voltage.

Method and apparatus for calculating an average value of an inaccessible current from an accessible current

In a power converter, a circuit determines an average value of an inaccessible current from an average value of an accessible current and a value of the operating duty cycle of the converter. A method of measuring an average value of an inaccessible current from a measured value of a current, in a power converter, by a duty cycle of a pulse width modulation (PWM) signal, representing a duty cycle of the power converter. Coupling a voltage representing the measured value to an input of a low pass filter during a time period (D) and coupling the input of the low pass filter to a reference voltage during a time period (1−D).

User-defined virtual interaction space and manipulation of virtual cameras in the interaction space

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture.

Clamped-inductance power converter apparatus with transient current limiting capability and operating methods therefor

A power converter apparatus, such as a DC-DC converter, includes a switch that controls current transfer between an input port and an inductance. A control circuit is operative, while current is being transferred between the inductance and a clamping circuit, to control the switch responsive to a current in the inductance. For example, the control circuit may include a current sensor configured to be coupled in series with the inductance and a switch control circuit operative to control the first switch responsive to a current sense signal generated by the current sensor. The switch control circuit may be operative to prevent transition of the switch from the first state to the second state until the current sense signal meets a predetermined criterion, e.g., a signal state indicative of a desired current condition, such as a current approximating zero or a current reversal. Related operating methods are also discussed.

Detection and tracking of moving objects from a moving platform in presence of strong parallax

Among other things, methods, systems and computer program products are described for detecting and tracking a moving object in a scene. One or more residual pixels are identified from video data. At least two geometric constraints are applied to the identified one or more residual pixels. A disparity of the one or more residual pixels to the applied at least two geometric constraints is calculated. Based on the detected disparity, the one or more residual pixels are classified as belonging to parallax or independent motion and the parallax classified residual pixels are filtered. Further, a moving object is tracked in the video data. Tracking the object includes representing the detected disparity in probabilistic likelihood models. Tracking the object also includes accumulating the probabilistic likelihood models within a number of frames during the parallax filtering. Further, tracking the object includes based on the accumulated probabilistic likelihood models, extracting an optimal ...

Method of using extracts of epimedium species

Extracts of various species of the family Berberidaceae have estrogenic properties. For example, aqueous and ethanolic extracts of Epimedium species possess estrogenic properties in both ERα+ and ERβ+ cells. These estrogenic effect include estrogen response element (ERE) stimulation as well as tumor necrosis factor (TNF) repression. Methods are provided for treating climacteric symptoms, breast and/or uterine cancer, and osteoporosis.

Power converter apparatus and methods using output current feedforward control

A controller for a boost converter includes a first current sense input configured to receive an inductor current sense signal representative of a current in the inductor and a second current sense input configured to receive an output current sense signal representative of an output current of the boost converter. The controller further includes a control circuit configured to be coupled to a boost switch of the boost converter and to control the boost switch responsive to the received inductor current sense signal to force an input current of the boost converter directly proportional to the output current and to an input voltage of the boost converter and inversely proportional to an output voltage of the boost converter. The invention may be embodied as apparatus or methods.

Estrogenic extracts of Ligustrum lucidum ait. of the oleaceae family and uses thereof

Extracts of various species of the Moraceae family have estrogenic properties. For example, aqueous and ethanolic extracts of Ligustrum lucidum Ait. of the Oleaceae Family possess estrogenic properties in both ER+ and ER+ cells. These estrogenic effects include estrogen response element (ERE) stimulation as well as tumor necrosis factor (TNF) repression. Methods are provided for treating climacteric symptoms, breast and/or uterine cancer, and osteoporosis.

Power supply system with non-linear capacitance charge-pump

One example includes a power supply system. The system includes a switch system comprising a switch that is configured to generate a switching voltage at a switching node in response to an input voltage. The system also includes a non-linear capacitance charge-pump coupled to the switching node and being configured to provide an output current in response to the switching voltage. The output current can have an amplitude that varies non-linearly with respect to an amplitude of the switching voltage. The switch system further includes an output stage configured to generate an output voltage on an output node in response to the output current.

Process of making purified extract of Scutellaria barbata D. Don

An extract of Scutellaria barbata D. Don is effective in the arrest of cancer cell growth in the G1 phase, the induction of apoptosis in cancer cells and the shrinking of solid cancers. The extract may be prepared as a pharmaceutical composition for administration to mammals for the treatment of solid cancers, such as epithelial cancers. Such epithelial cancers include breast cancer and ovarian cancers. The extract is obtained from Scutellaria barbata D. Don by contacting aerial portions of a plant from the species Scutellaria barbata D. Don with an aqueous or alcoholic solvent.

BIOMETRIC VISITOR CHECK SYSTEM

A system for biometric exclusion of certain individuals from entering a facility. A biometric exclusion system may use biometric acquisition and matching and a database to screen a large population of subjects by looking for individuals enrolled in a database. A screening approach may be used to match biometrics having sufficient quality of any individuals attempting to enter the facility, relative to biometrics of individuals stored in the database. A biometric, such as that of a face or an iris, of an individual may be obtained with the individual's knowledge or cooperation. The database may have biographical information pertinent to an individual having a biometric in the database. There may be an associated system which may be used to enroll individuals by entering their biometrics in the database. 1. A method for checking visitors comprising:detecting a subject attempting to enter a facility;acquiring a biometric signal from the subject;extracting a biometric of the subject from the biometric signal; andperforming a quality measure on the biometric to determine whether the quality of the biometric is sufficient for matching to another like biometric; andwherein if the quality measure of the biometric is acceptable, then a biometric, which matches the biometric of the subject, is looked for in a biometric database to determine whether the subject can be admitted to the facility.2. The method of claim 1 , wherein if a biometric is found in the database claim 1 , which matches the biometric of the subject claim 1 , then the subject is denied entry to the facility.3. The method of claim 2 , wherein the facility is a casino.4. The method of claim 1 , wherein if a biometric claim 1 , which matches the biometric of the subject claim 1 , is not found in the database claim 1 , then the subject is admitted into the facility.5. The method of claim 4 , wherein if the biometric claim 4 , which matches the biometric of the subject claim 4 , is not found in the database claim ...

Composition for treatment of menopause

A method of using an herbal extract of a mixture of: Herba Scutellaria barbata, Radix Sophora subprostratae, Radix Anemarrhena, Semen Glycine sojae, Radix Glycyrrhiza, Rhizoma Rhei, Fructus Tritici levis, Radix Astragali, Radix Rehmania, Fructus Ligustri lucidi, Semen Zyziphi spinosa, Plumula Nelumbinis, Poria cocos, Rhizoma Alismatis, Cortex Moutan radicis, Fructus Corni, Radix Achyranthis, Concha Ostrea, Radix Aspargi, Radix Pueraria, Radix Atractylodis macrocephala and Herba Epimedium, for the treatment of hot flashes associated with menopause is disclosed herein.

ESTROGENIC EXTRACTS OF Ligustrum lucidum Ait. of the Oleaceae Family AND USES THEREOF

Extracts of various species of the Moraceae family have estrogenic properties. For example, aqueous and ethanolic extracts of . of the Oleaceae Family possess estrogenic properties in both ERα+ and ERβ+ cells. These estrogenic effects include estrogen response element (ERE) stimulation as well as tumor necrosis factor (TNF) repression. Methods are provided for treating climacteric symptoms, breast and/or uterine cancer, and osteoporosis. 1Ligustrum lucidum Ait. A plant extract composition , comprising an extract of a plant species selected from the taxonomic species . of the Oleaceae Family.2. The composition of claim 1 , wherein the extract is either an aqueous or ethanolic extract.3. The composition of claim 1 , wherein the extract is an ethanolic extract.446-. (canceled) This application claims the benefit of U.S. Provisional Application No. 60/954,778, filed Aug. 8, 2007; and U.S. Nonprovisional patent application Ser. No. 12/188,959, filed Aug. 8, 2008, the contents of each are herein incorporated by reference in their entirety.Described herein are medicinal plant extract compositions, and more particularly to compositions comprising extracts of plant species belonging to the species . of the Oleaceae Family. The disclosure further provides medicaments comprising extracts, methods of using and methods of making such plant extract compositions.Hormone replacement therapy (HRT) has been used successfully to treat a variety of conditions, such as osteoporosis, increased risk of cardiovascular disease in post-menopausal women and climacteric symptoms, such as hot flashes, decreased libido and depression. However, HRT with estradiol (E), either alone or in combination with progestin, can lead to undesirable effects. In fact, a recent Women's Health Initiative (WHI) study was abruptly halted when preliminary results showed that HRT was associated with a 35% increased risk of breast cancer.Breast cancer can be treated or prevented by using a so-called selective ...

Composition for treatment of menopause

A novel herbal extract, MF101, is effective in the treatment of symptoms of menopause.

SYSTEM AND METHOD FOR OBJECT METROLOGY

A system includes a time of flight (TOF) camera or similar device, a processor coupled to the TOF camera, and a sensor. The processor receives TOF data from the sensor. The TOF data is related to an object within range of the TOF device. The processor calculates dimensions of the object using the time of flight data. 1. A process comprising:using time of flight (TOF) camera depth data associated with an object in the field of view of the TOF camera;calculating, using a computer processor coupled to the TOF camera, dimensions of the object using the TOF data; andincorporating the calculated dimensions of the object into a bar code.2. (canceled)3. The process of claim 1 , wherein the object comprises a manufactured object claim 1 , and comprising using the dimension data to analyze a quality of the manufactured object.4. The process of claim 1 , wherein the dimension calculation comprises one or more of normalizing a view of the object and segmenting the object from a background.5. The process of claim 1 , wherein 3D geometry of a surface of the object is used for compensating a geometric distortion of an image when detecting a barcode.6. The process of claim 1 , wherein 3D geometry of a surface of the object is used for compensating a geometric distortion in an image when reading a barcode.7. A process comprising:using a time of flight (TOF) camera to provide depth information;using a camera sensor to provide image color intensities;computing an orientation and curvature of a surface of an object in a field of view of the camera;using the surface of the object in the field of view for estimating a dimension of the object; andadding a dimension of the object to barcode information.8. The process of claim 7 , comprising providing the depth information and image color intensities by a single sensor.9. (canceled)10. (canceled)11. The process of claim 7 , comprising using the object dimension for estimating a cost of transaction for handling the object.12. The process of ...

APPARATUS AND METHOD FOR EFFICIENT INDEXING AND QUERYING OF IMAGES IN SECURITY SYSTEMS AND OTHER SYSTEMS

A method includes receiving one or more query images and identifying multiple features associated with an object or an activity using the one or more query images. The method also includes accessing a sparse representation index using the identified features. The sparse representation index includes a multi-dimensional polytope having multiple vertices, and the features identify a point in the polytope. The method further includes identifying multiple vertices in the sparse representation index that are associated with the identified point and providing one or more images associated with the identified vertices. In addition, the method includes identifying one or more clusters of features associated with the identified vertices and providing one or more additional images associated with the one or more identified clusters. The one or more clusters may be identified using a clustering index identifying the clusters and features of training images associated with the clusters.

SYSTEMS FOR INDIRECT AVERAGE CURRENT MEASUREMENT

One example of the invention relates to a power system. The power system can include a switching power converter configured to convert an input voltage to an output voltage for providing power at an output thereof to which a load is connectable. A measurement system can include measurement circuitry configured to measure an average of an accessible current in the power converter during both continuous and discontinuous modes of operation and derive an average measurement of another current in the power converter based on timing control signals used to control operation of the power converter. 1. A system comprising:a switching power converter configured to convert an input voltage to an output voltage for providing power at an output thereof to which a load is connectable; anda measurement system that comprises measurement circuitry configured to measure an average of an accessible current in the power converter during both continuous and discontinuous modes of operation and derive an average measurement of another current in the power converter based on a timing control signal related to the measurement of the average accessible current and used to control operation of the power converter.2. The system of claim 1 , wherein the accessible current is an input current of the power converter and another current is an output current of the power converter.3. The system of claim 1 , wherein the measurement system is configured according to a topology of the power converter.4. The system of claim 3 , wherein the topology of the power converter is one of a buck topology claim 3 , a boost topology or a buck-boost topology.5. The system of claim 1 , wherein the measurement system further comprises an averaging circuit coupled to provide an output that is proportional to an average current through a switch during conduction of the switch.6. The system of claim 5 , further comprising timing logic configured to control sampling for the averaging circuit based on the timing ...

Power supply system with non-linear capacitance charge-pump

One example includes a power supply system. The system includes a switch system comprising a switch that is configured to generate a switching voltage at a switching node in response to an input voltage. The system also includes a non-linear capacitance charge-pump coupled to the switching node and being configured to provide an output current in response to the switching voltage. The output current can have an amplitude that varies non-linearly with respect to an amplitude of the switching voltage. The switch system further includes an output stage configured to generate an output voltage on an output node in response to the output current.

Light emitting diode array driver

A device and method for controlling current output to current driven loads such as active light emitting diodes (LEDs) and, more particularly, a device and method for controlling current to an array of active LED strings that are disposed in series. The device generates a square wave AC current that flows through primary windings of plural isolation transformers whose primary windings are electrically connected in series. The device includes a current regulator that produces a regulated DC current that is proportional to a current reference; a free running inverter that converts the DC current to square wave AC current; and plural isolation transformers whose secondary windings are electrically connected to LED strings.

BATTERY CHARGING SYSTEM

One example includes a battery charging system configured to charge a battery associated with a mobile device. The battery charging system includes a transformer configured to receive an AC charging current via a charging cable at a primary inductor and to generate an AC secondary current at a secondary inductor. The battery charging system also includes a rectifier system configured to rectify and filter the AC secondary current to generate a DC charging current that is provided to charge a battery. 1. A mobile device comprising:a first terminal configured to receive an AC voltage from an AC adapter;a second terminal configured to provide a DC control signal to the AC adapter; anda controller having a first input configured to monitor an alternating current associated with the AC voltage, a second input configured to monitor a battery voltage of a battery, an output configured to provide the DC control signal based on the alternating current and the battery voltage, the DC control signal is configured to adjust an output current of the AC adapter.2. The mobile device of claim 1 , wherein the controller is configured to receive a charge voltage representative of the alternating current.3. The mobile device of claim 1 , wherein the battery is charged claim 1 , to the battery voltage claim 1 , by a direct current rectified from the alternating current.4. The mobile device of claim 1 , further comprising:a transformer having a primary inductor configured to receive the AC voltage as a primary voltage, and a secondary inductor configured to provide a secondary voltage; anda rectifier system coupled to the secondary inductor, and configured to generate a direct current for charging the battery to the battery voltage.5. The mobile device of claim 4 , further comprising:a resistor having a first end coupled to the primary inductor, and a second end coupled to the first input of the controller for providing a charge voltage representative of the alternating current; anda ...

USER-DEFINED VIRTUAL INTERACTION SPACE AND MANIPULATION OF VIRTUAL CAMERAS WITH VECTORS

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture. 1. A computer implemented method of interacting with a virtual vector field in a three dimensional (3D) sensor space , the method including:defining a vector field at least responsive to curling of fingers of a hand and degrees of freedom between fingers of the curled fingers, wherein the vector field is centered with respect to a fixed point proximate to the hand and magnitude of the vector field is calculated at least in part by a scale of curling of the fingers and degrees of freedom between the fingers;constructing a virtual sphere along a plurality of points on contour of curled fingers in the 3D sensor space;extending radially, inward or outward, one or more interaction vectors on the virtual sphere, wherein magnitudes of the interaction vectors are determined by radius of the virtual sphere; andcompounding interactions of the vector field with the interaction vector based on their respective magnitudes, wherein the interactions include at least one of adding, multiplying, or taking dot-product of at least one vector in the vector field and the interaction vector.2. A computer implemented method of manipulating virtual objects in a three dimensional (3D) sensor space , the method including:creating a virtual vector field in response to a control gesture that makes swirling motions in a three ...

Estrogenic Extracts of Morus Alba and Uses Thereof

Extracts of various species of the Moraceae family have estrogenic properties. For example, aqueous and ethanolic extracts of Morus alba L. species possess estrogenic properties in both ERα+ and ERβ+ cells. These estrogenic effect include estrogen response element (ERE) stimulation as well as tumor necrosis factor (TNF) repression. Methods are provided for treating climacteric symptoms, breast and/or uterine cancer, and osteoporosis.

SYNCHRONOUS RECTIFIER DRIVE AND SOFT SWITCHING CIRCUIT

A circuit includes a synchronous rectifier that receives an alternating current (AC) voltage from a transformer secondary and provides a rectified direct current (DC) output voltage in response to a control input signal. A secondary rectifier switching circuit generates the control input signal. A current replica circuit generates a control voltage that replicates a current in the transformer secondary. The control voltage is employed to control switching of the secondary rectifier switching circuit based on the current in the transformer secondary. An offset circuit forces the control voltage in a predetermined direction to mitigate voltage error accumulations in the current replica circuit. A clamp circuit limits the control voltage to a predetermined voltage value. 1. A circuit comprising:an output voltage terminal;a switch having a control terminal, a first terminal, and a second terminal coupled to the output voltage terminal;a voltage-to-current (VI) converter having a voltage input terminal coupled to the first terminal, and a current output terminal;a capacitor coupled to the current output terminal; anda secondary switching circuit having a control input terminal coupled to the capacitor and the current output terminal, and a control output terminal coupled to the control terminal of the switch.2. The circuit of claim 1 , wherein the secondary switching circuit includes:a reset comparator having a non-inverting input coupled to a ground reference terminal, an inverting input coupled to the capacitor and the current output terminal of the VI converter, and a reset output; anda flip-flop having a reset input coupled to the reset output of the reset comparator, and a non-inverting output coupled to the control output terminal.3. The circuit of claim 2 , wherein the secondary switching circuit includes:a secondary zero-voltage-switching (ZVS) reference voltage source having a positive terminal, and a negative terminal coupled to the output voltage terminal; ...

Feed forward controlled voltage to current source for LED driver

A DC to DC converter receives a DC input voltage and generates an output DC voltage. A current sensor measures a DC input current. A control circuit is coupled to the current sensor for controlling the DC to DC converter to have a constant DC input current.

Method and System for Indexing and Searching Objects of Interest across a Plurality of Video Streams

A seed search of a subset of analytical data corresponding to video objects displayable in a plurality of video frames is carried out to identify video objects that most closely match a selected video object and then complete searches of the analytical data may be carried out so as to identify video objects that most closely match each video object identified during the seed search. The video objects having the greatest number of occurrences of being identified during the complete searches may be displayed by a graphical user interface (GUI). In this way, the GUI may display the video objects in an order based on how closely each video object matches the selected video object and/or a video object identified during the seed search, which may an order different than an order based on a time when each video object was captured.

Bi-modal voltage converter

A bi-modal voltage converter and associated method for reducing stress on secondary rectifiers and decreasing switching losses. An embodiment of the voltage converter comprises three switches and control circuitry that is operative, upon a determination with respect to the input voltage, to select between a two-switch operation and a three-switch operation. When the input voltage is greater than a threshold value, one of the three switches is permanently turned on, while the other two switches are controlled using a pulse-width modulated (PWM) signal. When the input voltage is equal to or less than the threshold value (e.g., requiring a duty cycle greater than 50%), all three switches are controlled by the PWM signal.

Method and apparatus for calculating an average value of an inaccessible current from an accessible current

In a power converter, a circuit determines an average value of an inaccessible current from an average value of an accessible current and a value of the operating duty cycle of the converter. A method of measuring an average value of an inaccessible current from a measured value of a current, in a power converter, by a duty cycle of a pulse width modulation (PWM) signal, representing a duty cycle of the power converter. Coupling a voltage representing the measured value to an input of a low pass filter during a time period (D) and coupling the input of the low pass filter to a reference voltage during a time period (1−D).

IMAGING TERMINAL, IMAGING SENSOR HAVING MULTIPLE RESET AND/OR MULTIPLE READ MODE AND METHODS FOR OPERATING THE SAME

There is described in one embodiment an indicia reading terminal having an image sensor pixel array incorporated therein, where the terminal is operative for decoding of decodable indicia and for providing frames of image data (e.g., color) for storage, display, or transmission. Embodiments of imaging terminals, image sensor arrays and methods for operating the same can controllable process an integration period to improve pixel, image sensor, or imaging terminal performance.

PROXY VIDEO SERVER FOR VIDEO SURVEILLANCE

A proxy video server for managing video surveillance data in a network that includes at least one video source and client. The proxy video server includes a proxy video source manager for managing the video sources to appear as virtual smart video sources to video clients, a video client interface for receiving and interpreting requests from video clients and sending responses to video clients on behalf of the video sources, one or more video source interfaces for sending requests to a video source using a protocol specific to the video source and for receiving and interpreting responses from a video source using a protocol specific to the video source and a video analytics service function for providing video analytics as needed in order to present smart camera capabilities for each video source to any video client.

Adaptive capacitive filter circuit

An adaptive capacitive filter circuit includes: a first terminal adapted to be coupled to a rectifier bridge output; a second terminal adapted to be coupled to a ground terminal; a first capacitor having a first electrode and a second electrode, the first electrode of the first capacitor coupled to the first terminal; a second capacitor having a first electrode and a second electrode, the second electrode of the second capacitor coupled to the second terminal; a first switch coupled between the second electrode of the first capacitor and the second terminal; a second switch coupled between the first terminal and the first electrode of the second capacitor; and a third switch coupled between the second electrode of the first capacitor and the first electrode of the second capacitor.

PROCESS OF MAKING PURIFIED EXTRACT OF SCUTELLARIA BARBATA D. DON

An extract of Scutellaria barbata D. Don is effective in the arrest of cancer cell growth in the G1 phase, the induction of apoptosis in cancer cells and the shrinking of solid cancers. The extract may be prepared as a pharmaceutical composition for administration to mammals for the treatment of solid cancers, such as epithelial cancers. Such epithelial cancers include breast cancer and ovarian cancers. The extract is obtained from Scutellaria barbata D. Don by contacting aerial portions of a plant from the species Scutellaria barbata D. Don with an aqueous or alcoholic solvent.

Method and system for detecting corrosion under insulation

The present invention relates generally to thermal imaging systems and methods and uses therefor, and in a particular though non-limiting embodiment, to a method of detecting corrosion under insulation, as well as corrosion-related material data associated therewith. The system utilizes advanced infrared imaging video cameras to detect characteristic signatures of wet thermal traits on process equipment. Various embodiments of the invention integrate equipment, automation, and algorithms to form a method for identifying wet thermal insulation by scanning multiple locations along insulated piping, tanks, or other manufacturing equipment. Such scans can occur individually, sequentially, or simultaneously, with the results then being stored and comparatively analyzed. Further embodiments comprise tracking the approximate time of exposure to moisture, prediction of the corrosion rates for underlying insulated metal substrates, and measuring wall thicknesses along either predetermined random ...

DC transformer load regulation circuit

A circuit includes a transformer having first and second transformer inputs and first and second transformer outputs. The first transformer output can be adapted to be coupled through a capacitor to a first input of an output stage. The second transformer output can be adapted to be coupled to a second input of the output stage. The circuit also includes a switching system having first and second inputs and first and second switching outputs. The first input can be configured to receive a switching signal. The second input can be configured to receive an input voltage. The first and second switching outputs respectively can be coupled to the first and second transformer inputs.

INTERLEAVED FORWARD CONVERTER WITH WIDE INPUT AND OUTPUT DYNAMIC RANGE

An interleaved forward voltage converter having a first inverter stage has a first transformer having a first secondary winding coupled to a filter inductor. A second converter stage has a second transformer having a second secondary winding coupled to the filter inductor. A diode is coupled between the first and second secondary windings to automatically connect the first and second secondary windings in series when a duty cycle of the converter exceeds 50%. An interleaved forward voltage converter can connect the two primary windings in either parallel or a series configuration. The two secondary windings can be connected in either parallel or a series configuration. Having the two primary windings in parallel and the two secondary windings in series allows the converter to operate with a lower input voltage. Having the two primary windings in series and the two secondary windings in a parallel configuration allows the converter to operate with a higher input voltage.

METHOD AND APPARATUS FOR CALCULATING AN AVERAGE VALUE OF AN INACCESSIBLE CURRENT FROM AN ACESSIBLE CURRENT

In a power converter, a circuit determines an average value of an inaccessible current from an average value of an accessible current and a value of the operating duty cycle of the converter. A method of measuring an average value of an inaccessible current from a measured value of a current in a power converter by a duty cycle of a pulse width modulated (PWM) signal representing a duty cycle of the power converter. Coupling a voltage representing the measured value to an input of a low pass filter during a time period (D) and coupling the input of the low pass filter to a reference voltage during a time period (1−D). 1. A method of calculating an average output current from a signal related to input current comprising:obtaining a first voltage related to an average value of the input current;dividing the first voltage by a signal related to a duty cycle of a power converter;obtaining a signal related to the average value of the output current at output of the divider.2. The method of wherein the divider is an analog divider.3. The method of further comprising utilizing a current transformer to measure the value of the input current.4. The method of wherein the ratio of the current transformer is 1:N V/amps and the signal related to the output signal equals the output current times N.5. The method of wherein I in =Iout*D.6. In a power converter claim 2 , an analog divider comprising:a constant voltage source having an output voltage (A);an amplifier having one input terminal coupled to the output voltage (A);a capacitor coupled between an output of the amplifier and a second input terminal thereof;a first switch coupled between the output of the amplifier and a first node and being controlled by a pulse width modulation (PWM) signal (D);a second switch coupled between the node and a reference voltage and being controlled by the pulse width modulation (PWM) signal representing a duty cycle of a rectifier; anda resistor coupled between the second input terminal of the ...

ESTROGENIC EXTRACTS OF Asparagus conchinchinensis (Lour.) Merr of the Liliaceae Family AND USES THEREOF

Estrogenic extracts of Asparagus conchinchinensis (Lour.) Merr of the Liliaceae Family are provided. Also provided are methods of using said extracts to achieve an estrogenic effect, especially in a human, e.g. a female human. In some embodiments, the methods include treatment of climacteric symptoms. In some embodiments, the methods include treatment of estrogen receptor positive cancer, such as estrogen responsive breast cancer. In some embodiments, the methods include treatment or prevention of osteoporosis.

Pulse width modulated power conversion apparatus and methods using capacitor-charge feedback

A power converter apparatus includes a transformer having a primary winding and a secondary winding, a switching circuit operative to couple and decouple the primary winding of the transformer to a power source, and a control circuit that controls the switching circuit. A feedback circuit is coupled to the output port of a power transfer network and to the control circuit. The feedback circuit generates a current responsive to an output voltage at an output port of a power transfer network, charges a capacitance responsive to the generated current, and intermittently discharges the capacitance responsive to a control signal generated by the control circuit. A modulator circuit is coupled to the feedback circuit and to the power transfer network, and selectively couples the secondary winding of the transformer to an input port of the power transfer network responsive to a voltage on the capacitance. The invention may be embodied as apparatus or methods.

Switching power converter apparatus and methods using switching cycle with energy holding state

A power converter apparatus comprises an input port and an output port. First and second inductors are coupled to the output port. A first switching circuit is coupled to the input port and the first inductor. The first switching circuit is operative to repetitively perform a cycle comprising a first state in which the first switching circuit couples the first inductor to the input port such that energy is transferred from the input port to the first inductor, a second state in which the first switching circuit short circuits the first inductor, and a third state in which the first switching circuit decouples the first inductor such that energy is transferred from the first inductor to the output port. A second switching circuit is coupled to the input port and the second inductor and implements a similar cycle. The second switching circuit may operate such that the first and second states of the second switching circuit substantially coincide with the third state of the first switching ...

Power conversion apparatus and methods with reduced current and voltage switching

A power conversion apparatus, e.g., a DC-to-DC converter, includes a transformer having primary and secondary windings. A first switching circuit has an input port configured to be coupled across a DC power source and an output port coupled to the primary winding of the transformer. A switch control circuit is operatively associated with the switching circuit and causes the switching circuit to alternately apply first and second polarity voltages to the primary winding. A second switching circuit is operative to transfer energy to a load from the secondary winding via a first capacitor responsive to application of the first polarity voltage to the primary winding and to transfer energy to the load from the secondary winding via a second capacitor responsive to application of the second polarity voltage to the primary winding. The first switching circuit may be operated such that switches therein may be operated under reduced current and/or reduced voltage conditions. Related power conversion ...

Adaptive iris matching using database indexing

An adaptive iris matching approach for processing images of irises having a quality not sufficient for conventional non-adaptive matching approaches. Visible regions in a radial direction on an iris, without segmenting a circumferential of the iris, may be processed. A boundary of the visible region of the iris may be estimated. An iris map may be constructed with the non-visible portion of the iris masked. The iris map may be at least partially encoded. Partial codes of the iris map may be extracted to index at least portions of a database containing iris information. Irises may be retrieved from the database with an iris code as a query.

Method and apparatus for calculating an average value of an inaccessible current from an accessible current

In a power converter, a circuit determines an average value of an inaccessible current from an average value of an accessible current and a value of the operating duty cycle of the converter. A method of measuring an average value of an inaccessible current from a measured value of a current in a power converter by a duty cycle of a pulse width modulated (PWM) signal representing a duty cycle of the power converter. Coupling a voltage representing the measured value to an input of a low pass filter during a time period (D) and coupling the input of the low pass filter to a reference voltage during a time period (1−D).

Method and system for automatically estimating the spatial positions of cameras in a camera network

A method for automatically estimating the spatial positions between cameras in a camera network utilizes unique identifying signals, such as RFID signals, transmitting between nearby cameras to estimate the relative distances or positions between cameras from received signal strength (RSS), time of arrival (TOA), or time difference of arrival (TDOA) measurements to thereby determine the neighboring relationship among the cameras. A discover-locate process can be used to discover, from the estimated relative distances, unknown cameras in the vicinity of at least three cameras at known locations. Absolute locations of the discovered unknown cameras can then be calculated using a geometric calculation. The discover-locate process can be cascaded throughout the network to discover and locate all unknown cameras automatically using previously discovered and located cameras. Such methods can be implemented in systems having cameras with transceivers integrated therein and a controller operably ...

Synchronous rectifier drive and soft switching circuit

A circuit includes a synchronous rectifier that receives an alternating current (AC) voltage from a transformer secondary and provides a rectified direct current (DC) output voltage in response to a control input signal. A secondary rectifier switching circuit generates the control input signal. A current replica circuit generates a control voltage that replicates a current in the transformer secondary. The control voltage is employed to control switching of the secondary rectifier switching circuit based on the current in the transformer secondary. An offset circuit forces the control voltage in a predetermined direction to mitigate voltage error accumulations in the current replica circuit. A clamp circuit limits the control voltage to a predetermined voltage value.

ANTI-CANCER THERAPY WITH AN EXTRACT OF SCUTELLARIA BARBATA

Methods of treating cancer with a combination of an extract of Scutellaria barbata D. Don and at least one additional anticancer chemotherapeutic agent are provided. Also provided are kits comprising an extract of Scutellaria barbata D. Don and at least one additional anticancer chemotherapeutic agent.

Method and system for indexing and searching objects of interest across a plurality of video streams

A seed search of a subset of analytical data corresponding to video objects displayable in a plurality of video frames is carried out to identify video objects that most closely match a selected video object and then complete searches of the analytical data may be carried out so as to identify video objects that most closely match each video object identified during the seed search. The video objects having the greatest number of occurrences of being identified during the complete searches may be displayed by a graphical user interface (GUI). In this way, the GUI may display the video objects in an order based on how closely each video object matches the selected video object and/or a video object identified during the seed search, which may an order different than an order based on a time when each video object was captured.

User-defined virtual interaction space and manipulation of virtual cameras with vectors

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture.

User-defined virtual interaction space and manipulation of virtual configuration

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture.

Apparatus and method for efficient indexing and querying of images in security systems and other systems

A method includes receiving one or more query images and identifying multiple features associated with an object or an activity using the one or more query images. The method also includes accessing a sparse representation index using the identified features. The sparse representation index includes a multi-dimensional polytope having multiple vertices, and the features identify a point in the polytope. The method further includes identifying multiple vertices in the sparse representation index that are associated with the identified point and providing one or more images associated with the identified vertices. In addition, the method includes identifying one or more clusters of features associated with the identified vertices and providing one or more additional images associated with the one or more identified clusters. The one or more clusters may be identified using a clustering index identifying the clusters and features of training images associated with the clusters.

Method and System for Detecting Corrosion Under Insulation

The present invention relates generally to thermal imaging systems and methods and uses therefor, and in a particular though non-limiting embodiment, to a method of detecting corrosion under insulation, as well as corrosion-related material data associated therewith. The system utilizes advanced infrared imaging video cameras to detect characteristic signatures of wet thermal traits on process equipment. Various embodiments of the invention integrate equipment, automation, and algorithms to form a method for identifying wet thermal insulation by scanning multiple locations along insulated piping, tanks, or other manufacturing equipment. Such scans can occur individually, sequentially, or simultaneously, with the results then being stored and comparatively analyzed. Further embodiments comprise tracking the approximate time of exposure to moisture, prediction of the corrosion rates for underlying insulated metal substrates, and measuring wall thicknesses along either predetermined random ...

Behavior and pattern analysis using multiple category learning

A video processing system is configured to receive training video samples from a plurality of video sensing devices. The training video samples are sets of pair video samples. These pair video samples can include both substantially similar subject matter and different subject matter. In the first step, there is a patch pool sampled from videos, and the system select patches with more saliency. The saliency is represented by the conditional probability density function of the similar subject and the conditional probability of the different subject. During the testing phase, the system applies the selected patches from the training phase, and returns the matched subjects.

Transition mode charge control for a power converter

One embodiment relates to power conversion system. The system includes a converter configured to convert an input voltage to an output voltage, the converter comprising at least one switch that is controlled in response to an activation signal to provide current through an inductor. A transition mode controller is configured to provide the activation signal based on a measure of charge derived from current through the switch and based on the current through the inductor.

Estrogenic extracts of Morus alba and uses thereof

Extracts of various species of the Moraceae family have estrogenic properties. For example, aqueous and ethanolic extracts of Morus alba L. species possess estrogenic properties in both ER+ and ER+ cells. These estrogenic effect include estrogen response element (ERE) stimulation as well as tumor necrosis factor (TNF) repression. Methods are provided for treating climacteric symptoms, breast and/or uterine cancer, and osteoporosis.

ESTROGENIC EXTRACTS OF LIGUSTRUM LUCIDUM AIT. OF THE OLEACEAE FAMILY AND USES THEREOF

Extracts of various species of the Moraceae family have estrogenic properties. For example, aqueous and ethanolic extracts of Ligustrum lucidum Ait. of the Oleaceae Family possess estrogenic properties in both ERα+ and ERβ+ cells. These estrogenic effects include estrogen response element (ERE) stimulation as well as tumor necrosis factor (TNF) repression. Methods are provided for treating climacteric symptoms, breast and/or uterine cancer, and osteoporosis.

Anticancer Methods Employing Extracts of Gleditsia sinensis Lam

Selective apoptotic extracts of Lam are provided. Also provided are methods of using said extracts to induce apoptosis in specific cells, especially in a human. Provided as well are uses of the extracts of Lam for the preparation of a medicament for the selective induction of apoptosis. 1Gleditsia sinensis. A method of treating a patient having estrogen receptor (ER) negative breast cancer , comprising administering to the patient a therapeutically effective amount of an agent selected from the group consisting of an extract of Lam , oleanolic acid , a pharmaceutically acceptable salt of oleanolic acid , and a combination of two or more thereof.2. The method of claim 1 , wherein the therapeutically effective amount of the agent is about 0.001 to about 100 grams dry weight of the agent per day.3. The method of claim 1 , wherein the ER negative breast cancer is also negative for one or both of progesterone receptor (PR) and/or Her2/neu.4. The method of claim 1 , wherein the ER negative breast cancer is triple negative breast cancer.5. The method of claim 1 , wherein the ER negative breast cancer is metastatic.6. The method of claim 1 , wherein the agent is in an oral dosage form.7Gleditsia sinensis. A pharmaceutical composition comprising a therapeutically effective amount of an agent selected from the group consisting of an extract of Lam claim 1 , oleanolic acid claim 1 , a pharmaceutically acceptable salt of oleanolic acid claim 1 , and combinations of two or more thereof claim 1 , wherein the therapeutically effective amount is an amount effective to treat estrogen receptor (ER) negative breast cancer.8. The pharmaceutical composition of claim 7 , wherein the therapeutically effective amount of the agent is about 0.001 to about 100 grams dry weight of the agent per day.9. The pharmaceutical composition of claim 7 , wherein the ER negative breast cancer is also negative for one or both of progesterone receptor (PR) and/or Her2/neu.10. The pharmaceutical composition ...

Contextual information encoded in a formed expression

Embodiments include a method, a manual device, a handheld manual device, a handheld writing device, a system, and an apparatus. An embodiment provides a manual device operable in a context. The manual device includes a writing element operable to form a mark on a surface in response to a movement of the writing element with respect to the surface. The manual device also includes a controller operable to encode information corresponding to the context of the manual device by regulating the formation of the mark.

SYSTEM AND METHOD FOR PROVIDING INFORMATION IN A NETWORK

A method for providing information in a network includes receiving in a network at least some personal interest information of a first user, determining at least one goal for the first user wherein the at least one goal is correlated to the at least some personal interest information of the first user and at least some personal interest information and at least one goal of at least a second user in the network, and displaying to the first user the at least one goal and the at least one list item. 1. A computer implemented method of suggesting at least one goal and at least one list item to a user , the method comprising:receiving in a network at least some personal interest information of a first user;determining at least one goal for the first user wherein the at least one goal is correlated to the at least some personal interest information of the first user and at least some personal interest information and at least one goal of at least a second user in the network;determining the at least one list item for the first user wherein the at least one list item is correlated to the at least some personal interest information of the first user and the at least some personal interest information and at least one list item of the at least second user in the network wherein the at least one list item of the at least a second user in the network is associated with the at least one goal of the at least a second user in the network; anddisplaying to the first user the at least one goal and the at least one list item.2. The method of further comprising receiving a modification of the at least one list item by the first user.3. The method of further comprising weighing rank of the at least one list item of the at least second user by users in the network in determining the at least one list item.4. The method of wherein the at least one list item of the at least a second user and the at least one goal of the at least a second user are unrelated.5. The method of wherein the at ...

Composition for treatment of menopause

A novel herbal extract, MF101, is effective in the treatment of symptoms of menopause.

Moisturizing Compositions For Lip

A water in oil emulsion lip treatment composition comprising at least one non-polar silicone oil, at least one non-polar organic oil, at least one amphiphilic organic emollient oil, at least one water in oil surfactant; and at least one oil in water surfactant. 1. A water in oil emulsion lip treatment composition comprising at least one non-polar silicone oil , at least one non-polar organic oil , at least one amphiphilic organic emollient oil , at least one water in oil surfactant; and at least one oil in water surfactant.2. The composition of wherein the non-polar silicone oil is selected from a linear or branched volatile silicone oil claim 1 , a linear non-volatile silicone oil claim 1 , or mixtures thereof.3. The composition of wherein the non-polar silicone oil comprises dimethicone having a viscosity ranging from about 100 to 300 centipoise at 25° C.4. The composition of wherein the water is present at greater than 30 percent by weight.5. The composition of comprising claim 1 , by weight of the total composition:from about 0.1 to 85% of a nonpolar silicone oil,from about 0.1 to 80% of a nonpolar organic oil,from about 0.1 to 70% of an amphiphilic organic oil,from about 0.1 to 75% of a water in oil surfactant; andfrom about 0.01 to 80% of an oil in water surfactant.6. The composition of wherein the nonpolar silicone oil is a mixture of volatile and non-volatile silicones.7. The composition of wherein the nonpolar silicone oil comprises a volatile silicone which is methyl trimethicone; and at least one non-volatile silicone which is dimethicone having a viscosity ranging from about 100 to 300 centipoise.8. The composition of wherein the nonpolar organic oil comprises a C1-10 carboxylic acid ester of a C12-20 fatty alcohol.9. The composition of wherein the nonpolar organic oil has a viscosity ranging from 10 to 400 cst.10. The composition of wherein the nonpolar organic oil is selected from triisostearyl citrate claim 9 , tricaprylin claim 9 , diisostearyl ...

SYSTEMS FOR INDIRECT AVERAGE CURRENT MEASUREMENT

One example of the invention relates to a power system. The power system can include a power converter configured to convert an input voltage to an output voltage for providing power at an output thereof to which a load is connectable. A measurement system can include measurement circuitry configured to measure an average of an accessible current in the power converter and derive an average measurement of another current in the power converter based on timing control signals used to control operation of the power converter. 1. A system comprising:a power converter configured to convert an input voltage to an output voltage for providing power at an output thereof to which a load is connectable; anda measurement system that comprises measurement circuitry configured to measure an average of an accessible current in the power converter and derive an average measurement of another current in the power converter based on a timing control signal used to control operation of the power converter.2. The system of claim 1 , wherein the accessible current is an input current of the power converter and the another current is an output current of the power converter.3. The system of claim 1 , wherein the measurement system is configured according to a topology of the power converter.4. The system of claim 3 , wherein the topology of the power converter is one of a buck topology claim 3 , a boost topology or a buck-boost topology.5. The system of claim 1 , wherein the measurement system further comprises an averaging circuit coupled to provide an output that is proportional to an average current through a switch during conduction of the switch.6. The system of claim 5 , further comprising timing logic configured to control sampling for the averaging circuit based on the timing control signal.7. The system of claim 6 , wherein the averaging circuit is a first averaging circuit claim 6 , the measurement system further comprising a second averaging component configured to average ...

Vehicle Drivetrain Test Stand And Method Of Controlling Same

A test stand may include a clutch operatively arranged with a dynamometer and a flywheel. The test stand may further include a controller configured to control the clutch to decouple a rotating inertia of the dynamometer from a rotating inertia of the flywheel such that the rotating inertia of the flywheel exhibits a desired rotating inertia. 1. A test stand for a vehicle drivetrain comprising:a clutch configured to (i) variably transfer torque between a dynamometer and the vehicle drivetrain according to a determined force representing a tire being simulated by the dynamometer and (ii) slip when a torque in the vehicle drivetrain exceeds a value based on the determined force.2. The test stand of wherein a difference between the torque in the vehicle drivetrain and the force of the tire being simulated is used to accelerate an inertial element operatively arranged with the clutch and the vehicle drivetrain.3. The test stand of wherein the rotating inertia of the inertial element is at least equal to the rotating inertia of the tire being simulated.4. The test stand of further comprising a controller configured to control the torque transferred through the clutch based on a speed of the tire being simulated and the torque in the drivetrain.5. The test stand of further comprising a controller configured to control a speed across the clutch based on a difference in speed between the tire being simulated and the dynamometer.6. A test stand comprising:a clutch operatively arranged with a dynamometer and a flywheel; anda controller configured to control the clutch to decouple a rotating inertia of the dynamometer from a rotating inertia of the flywheel such that the rotating inertia of the flywheel exhibits a desired rotating inertia.7. The test stand of wherein the controller controls the clutch according to a measured torque.8. A method of testing a vehicle drivetrain comprising:causing a variable transfer of torque between a dynamometer and the vehicle drivetrain via a ...

Wheel Slip Simulation Systems And Methods

A dynamometer may be configured to simulate the rotating inertial characteristics of a wheel-tire assembly slipping relative to a road surface and having rotating inertial characteristics different than the rotating inertial characteristics of the wheel-tire assembly being simulated.

DECODING DIGITAL INFORMATION INCLUDED IN A HAND-FORMED EXPRESSION

Embodiments include a method, a manual device, a handheld manual device, a handheld writing device, a system, and an apparatus. An embodiment provides a device. The device includes an imaging circuit operable to acquire digital information encoded in a hand-formed analog expression marked on a surface by a handheld writing device. The device also includes a translator circuit operable to decode the digital information. The device further includes a correlation circuit operable to generate a signal indicative of the decoded digital information. 1. A device comprising:an imaging circuit operable to acquire digital information encoded in a hand-formed analog expression marked on a surface by a handheld writing device;a translator circuit operable to decode the digital information; anda correlation circuit operable to generate a signal indicative of the decoded digital information.2. The device of claim 1 , further comprising:a display operable to broadcast a human viewable image corresponding to the digital information.3. A device comprising:an imaging circuit operable to acquire digital information encoded in a hand-formed expression formed on a surface by a handheld writing device, the digital information corresponding to an environment of the handheld writing device when the expression was formed on the surface;a translator circuit operable to decode the digital information corresponding to an environment of the handheld writing device when the expression was formed on the surface; anda correlation circuit operable to generate a signal indicative of the environment of the handheld writing device when the expression was formed on the surface.4. The device of claim 3 , wherein the imaging circuit operable to acquire digital information encoded in a hand-formed expression formed on a surface by a handheld writing device claim 3 , the digital information corresponding to an environment of the handheld writing device when the expression was formed on the surface further ...

TRANSITION MODE CHARGE CONTROL FOR A POWER CONVERTER

One embodiment relates to power conversion system. The system includes a converter configured to convert an input voltage to an output voltage, the converter comprising at least one switch that is controlled in response to an activation signal to provide current through an inductor. A transition mode controller is configured to provide the activation signal based on a measure of charge derived from current through the switch and based on the current through the inductor. 1. A power converter system comprising:a converter configured to convert an input voltage to an output voltage, the converter comprising at least one switch that is controlled in response to an activation signal to provide current through an inductor; anda transition mode controller configured to provide the activation signal based on a measure of charge derived from current through the switch and based on the current through the inductor.2. The system of claim 1 , wherein the transition mode controller comprises:an integrator configured to integrate the current through the switch to derive the measure of charge; andswitching logic configured to deactivate the switch in response to the measure of charge being greater than a charge reference.3. The system of claim 2 , wherein the switching logic is further configured to activate the switch in response to the magnitude of the current through or the magnetic flux in the inductor being approximately zero.4. The system of claim 2 , wherein the switching logic comprises:a first comparator configured to detect a zero-crossing condition for the current through or the flux in the inductor;a charge comparator configured to compare the measure of charge with the charge reference; anda latch configured to activate the switch in response to detecting the zero-crossing condition and to deactivate the switch in response to the measure of charge being greater than the charge reference.5. The system of claim 4 , wherein the predetermined charge reference comprises a ...

Image processing system providing selective arrangement and configuration for an image analysis sequence

A computer-implemented method of processing a selected image using multiple processing operations is provided. An image analysis sequence having multiple processing steps is constructed. The image analysis sequence is constructed in response to receipt of multiple processing operation selections. Individual processing steps in the image analysis sequence are associated with a processing operation that is indicated in a corresponding processing operation selection. The processing steps are arranged in response to receipt of arrangement information that relates to a selective arrangement of the processing steps. At least one of the processing steps in the image analysis sequence is configured such that the processing operation associated with the processing step processes a specified input image to generate an output image when the processing step is performed. A display signal is generated for display of the output image at a display device.

DC-DC CONVERTERS

A DC-DC converter includes a waveform generator that generates an output waveform for the DC-DC converter based on a DC input voltage. A rectifier rectifies the output waveform from the waveform generator to generate a rectified voltage for the DC-DC converter. A tank circuit having an inductor and a capacitor can be configured to have a resonant frequency that is correlated with a frequency of the output waveform, wherein the capacitor of the tank circuit also functions as a filter for the DC-DC converter. 1. A DC-DC converter , comprising:a waveform generator that generates an output waveform for the DC-DC converter based on a DC input voltage;a rectifier that rectifies the output waveform from the waveform generator to generate a rectified voltage for the DC-DC converter; anda tank circuit having an inductor and a capacitor configured to have a resonant frequency that is correlated with a frequency of the output waveform, wherein the capacitor of the tank circuit also functions as a filter for the DC-DC converter.2. The DC-DC converter of claim 1 , further comprising a transformer coupled to the rectifier claim 1 , wherein a leakage inductance of a primary side of the transformer functions as the inductor of the tank circuit.3. The DC-DC converter of claim 2 , wherein a first connection of the primary side of the transformer is coupled to the DC input voltage and a second connection of the primary side of the transformer is coupled to a power switch that is driven from the waveform generator.4. The DC-DC converter of claim 1 , wherein the capacitor is configured as a first capacitor and a second capacitor operating as a voltage doubler in the DC-DC converter claim 1 , and wherein the rectifier is configured as a first diode and a second diode coupled across the voltage doubler.5. The DC-DC converter of claim 4 , further comprising a transformer having a primary side and a secondary side claim 4 , wherein the secondary side is coupled to the voltage doubler and ...

FEED FORWARD CONTROLLED VOLTAGE TO CURRENT SOURCE FOR LED DRIVER

A DC to DC converter receives a DC input voltage and generates an output DC voltage. A current sensor measures a DC input current. A control circuit is coupled to the current sensor for controlling the DC to DC converter to have a constant DC input current. 1. A DC to DC converter receiving DC input voltage and generating an output DC voltage , comprising:a current sensor for measuring DC input current;a control circuit coupled to the current sensor for controlling the DC to DC converter to have a constant DC input current.2. The DC to DC converter of wherein a load coupled to an output is an LED.3. The DC to DC converter of wherein the LED is a string of LEDs.4. The DCD to DC converter of wherein an output voltage of the current sensor is compared to a fixed reference voltage for generating a comparison voltage for controlling the DC input current to the converter.5. The DC to DC converter of wherein a pulse width modulation (PWM) circuit is coupled to receive the comparison voltage.6. The DC to DC converter of wherein an output voltage of the current sensor is compared with a voltage related to the output voltage for generating a comparison voltage for controlling the DC input current to the converter.7. The DC to DC converter of wherein a pulse width modulation (PWM) circuit is coupled to receive the comparison voltage.8. The DC to DC converter of wherein the load coupled to an output is an LED.9. The DC to DC converter of wherein the output voltage of the current sensor is compared with a pulsed reference voltage generating a comparison voltage for controlling the DC input current to the converter.10. The DC to DC converter of wherein a pulse width modulation (PWM) circuit is coupled to receive the comparison voltage.11. The DC to DC converter of wherein a load coupled to an output is an LED.12. The DC to DC converter of wherein an output voltage of the current sensor compared with absolute value of a sinusoidal voltage reference for generating a comparison ...

MICROPHONE ASSEMBLY

Embodiments of the invention include a microphone assembly having a microphone soldered on a bottom side of a bottom ported microphone flex circuit carrier, and a rigid coupler soldered on the top side of the carrier, opposite to the microphone. The coupler is inserted into and sealed to a microphone boot made out of a soft material. The top of the boot may be sealed to an electronic audio device into which the assembly is integrated. Acoustic openings through the housing, boot, coupler and carrier allow acoustic signals to reach the microphone. However, the seals between the housing, boot, coupler, carrier and microphone provide sound isolation, as well as a moisture and dust seal between the ambient and the inside of the electronic device. Such seals may include rings, grooves, threads, 0-rings between the boot and coupler; or a reinforcing ring around the soft material of the boot. 1. An electronic device comprising: a printed circuit carrier having a first opening;', 'a microphone having an acoustic input port aligned with the first opening and that faces a back side of the carrier;', 'a rigid acoustic coupler having a second opening and aligned with the first opening; and', 'a compliant boot installed over the rigid acoustic coupler., 'a microphone assembly having2. The electronic device of claim 1 , wherein the microphone is bonded to the back side of the carrier; and wherein the coupler is bonded to the front side of the carrier.3. The electronic device of claim 1 , wherein the microphone is soldered to the back side of the carrier claim 1 , the rigid acoustic coupler is soldered to the front side of the carrier claim 1 , and the carrier is a flex circuit carrier.4. The apparatus of claim 1 , wherein the rigid acoustic coupler comprises a metal cap claim 1 , the compliant boot comprises a soft compression molded material claim 1 , and an inner perimeter of the compliant boot is sealed to an outer perimeter of the coupler.5. The apparatus of claim 4 , wherein ...

Composite Particles, Compositions And Methods

Composite particulates, topical composition containing composite particulates, methods for improving the appearance of skin depth, dimensionality or undertones; a method for improving the ashy, chalky or mask-like appearance of color cosmetic compositions on the skin; and a method for reducing the number of shades in a color cosmetic shade range by formulating the cosmetic with composite particulates. 1. A composition for application to keratinous surfaces containing composite particulates in the form of fused agglomerates having a portion comprised of at least one colorant and a portion comprised of at least one clear or translucent thermoplastic material , wherein the composite particulates contain , by weight of the total composite particulate , from about 1 to 99.9 parts of the colorant portion and from about 0.1 to 100 parts of the clear or translucent thermoplastic material portion , and wherein at least some of the composite particulates present in the composition have a colorant portion present.2. The composition of wherein the colorant is a pigment claim 1 , powder claim 1 , or mixture thereof.3. The composition of wherein the colorant is an organic pigment claim 2 , an inorganic pigment claim 2 , or mixtures thereof.4. The composition of wherein the organic pigment is a D&C color claim 3 , FD&C color claim 3 , or Lake thereof and the inorganic pigment is one or more iron oxides claim 3 , titanium dioxide claim 3 , or zinc oxide.5. The composition of wherein the powder is a white or non-colored particulate material having a particle size ranging from about 0.001 to 100 microns.6. The composition of wherein the thermoplastic material is in the form of partial solid or hollow spheres.7. The composition of in the form of a foundation makeup claim 1 , blush claim 1 , mascara claim 1 , eyeshadow. concealer claim 1 , or lipstick.8. A composite particulate in the form of fused agglomerates having a portion comprised of at least one colorant and a portion comprised ...

Power supply converter with a pre-regulator

A power supply converter with a pre-regulator is provided. In one embodiment, the power supply converter comprises a rectifier that receives an AC input voltage and provides a rectified AC input voltage, a filter that receives the rectified AC input voltage and provides a filtered DC input voltage and a pre-regulator that connects the rectified AC input voltage for allowing for providing current and voltage to the filter from the rectified AC input voltage upon a measurement that indicates that the AC input voltage or the rectified AC input voltage crosses a predetermined turn on threshold.

MICROPHONE WITH ACOUSTIC MESH TO PROTECT AGAINST SUDDEN ACOUSTIC SHOCK

A portable electronic device having an outer case having a substantially planar face in which a microphone associated acoustic port is formed. The device also has a micro-electro-mechanical system (MEMS) microphone positioned within the outer case, the MEMS microphone having a diaphragm facing the microphone associated acoustic port. An acoustic mesh is positioned between the front face of the outer case and the diaphragm, the acoustic mesh having a non-linear acoustic resistance so as to minimize an effect of an incoming air burst on the diaphragm. Other embodiments are also described and claimed. 1. A portable electronic device comprising:an outer case having a substantially planar face in which a microphone associated acoustic port is formed;a micro-electro-mechanical system (MEMS) microphone positioned within the outer case, the MEMS microphone having a diaphragm facing the microphone associated acoustic port; anda closed mesh positioned between the substantially planar face of the outer case and the diaphragm, the closed mesh having a non-linear acoustic resistance that is to reduce an effect of an incoming air burst on the diaphragm.2. (canceled)3. The portable electronic device of wherein the acoustic resistance of the closed mesh is at least 1000 MKS rayls.4. The portable electronic device of wherein the microphone associated acoustic port is dimensioned to tune an absolute acoustic resistance of the closed mesh.5. The portable electronic device of wherein the closed mesh is a first acoustic mesh claim 1 , the device further comprising:a second acoustic mesh positioned over the microphone associated acoustic port.6. The portable electronic device of wherein the absolute acoustic resistance is from 600 MKS rayls to 2000 MKS rayls.7. The portable electronic device of wherein the device is a mobile telephone.8. A portable electronic device comprising:an outer case having a substantially planar face in which an acoustic port is formed;a transducer positioned ...

VELOCITY FIELD INTERACTION FOR FREE SPACE GESTURE INTERFACE AND CONTROL

The technology disclosed relates to automatically interpreting a gesture of a control object in a three dimensional sensor space by sensing a movement of the control object in the three dimensional sensor space, sensing orientation of the control object, defining a control plane tangential to a surface of the control object and interpreting the gesture based on whether the movement of the control object is more normal to the control plane or more parallel to the control plane. 1. A method of automatically interpreting a gesture of a control object , in a three-dimensional (3D) sensor space using a 3D sensor , as a first gesture or a second gesture , the method including:determining that the gesture is the first gesture when a direction of a sensed trajectory of a sensed movement of the control object is within a pre-determined range of a normal vector that is normal to a defined control plane that remains tangent to a surface of the control object throughout a sensed movement of the control object in any direction in the 3D sensor space, the control plane being defined by an orientation of the control object as sensed by a video camera, whereby the direction of the movement of the trajectory of the control object is more normal to a surface of the control plane than parallel to the surface of the control plane; anddetermining that the gesture is the second gesture when the direction of the trajectory of the movement of the control object is parallel to the surface of the control plane, within a pre-determined range, whereby the direction of the movement of the trajectory of the control object is more parallel to the surface of the control plane than normal to the surface of the control plane.2. The method of claim 1 , wherein:the control object is a hand; andthe control plane is tangent to a palm or back of the hand.3. The method of claim 1 , wherein the interpreting of the gesture includes:calculating an angular trajectory of the movement of the control object; ...

User-Defined Virtual Interaction Space and Manipulation of Virtual Configuration

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture.

POWER SUPPLY SYSTEM

A circuit includes a transformer having first and second transformer inputs and first and second transformer outputs. The first transformer output can be adapted to be coupled through a capacitor to a first input of an output stage. The second transformer output can be adapted to be coupled to a second input of the output stage. The circuit also includes a switching system having first and second inputs and first and second switching outputs. The first input can be configured to receive a switching signal. The second input can be configured to receive an input voltage. The first and second switching outputs respectively can be coupled to the first and second transformer inputs. 1. A circuit comprising:a transformer having first and second transformer inputs and first and second transformer outputs, the first transformer output adapted to be coupled through a capacitor to a first input of an output stage, and the second transformer output adapted to be coupled to a second input of the output stage; anda switching system having first and second inputs and first and second switching outputs, the first input configured to receive a switching signal, the second input configured to receive an input voltage, and the first and second switching outputs respectively coupled to the first and second transformer inputs.2. The circuit of claim 1 , wherein the switching signal has a frequency that is less than a resonant frequency of the capacitor and a secondary winding of the transformer.3. The circuit of claim 1 , wherein the switching system is arranged as one of a full-bridge switching system claim 1 , a half-bridge switching system claim 1 , and a push-pull switching system.4. The circuit of claim 1 , wherein the switching system comprises switches that are controlled by the switching signal having a frequency claim 1 , the circuit further comprising a load regulator having a first input that samples a current through a primary winding of the transformer and an output that ...

System and Method for Automatically Analyzing Phenotypical Responses of Cells

A system and a method to analyze a phenotypical response of cells to a treatment are disclosed in which a model development module receives images of a plurality of reference cell carriers and treatment information associated with the plurality of reference cell carriers, identifies parameters of cells in the image that distinguish those reference cell carriers to which the treatment has been applied from other reference cell carriers, and trains a model using the identified parameters. A high-content imaging system includes an image capture device, and the image acquisition module receives from the image capture device a plurality of images of cell carriers to be evaluated. The model application module applies the trained model to the plurality of images of the cell carriers to be evaluated to predict a concentration of the treatment applied to each of the cell carriers evaluated. 1. A system to analyze a phenotypical response of cells to a treatment , comprising:a high-content analysis system, wherein the high-content analysis system includes an image capture device;a model development module that receives images of a plurality of reference cell carriers and treatment information associated with the plurality of reference cell carriers, identifies parameters of cells in the image that distinguish those reference cell carriers to which the treatment has been applied from other reference cell carriers, and trains a model using the identified parameters;an image acquisition module that receives from the image capture device a plurality of images of cell carriers to be evaluated; anda model application module that applies the trained model to the plurality of images of the cell carriers to be evaluated to indicate a response level of cells in each of the cell carriers to be evaluated.2. The system of claim 1 , wherein the images of the plurality of reference cell carriers are one of images of wells of a reference tray claim 1 , images of a set of slides claim 1 , and ...

FLYBACK CONVERTER WITH SECONDARY SIDE REGULATION

Disclosed examples include flyback converters, control circuits and methods to facilitate secondary side regulation of the output voltage. A primary side control circuit operates a primary side switch to independently initiate power transfer cycles to deliver power to a transformer secondary winding in a first mode. A secondary side control circuit operates a synchronous rectifier or secondary side switch to generate a predetermined cycle start request signal via a transformer auxiliary winding to assume secondary side regulation and to cause the primary side controller to initiate new power transfer cycles. 1. A flyback converter , comprising: a primary winding, including a first end to receive an input voltage signal, and a second end,', 'a secondary winding, including a first end to provide an output voltage signal, and a second end, and', 'an auxiliary winding including a first end, and a second end coupled with a first constant voltage node;, 'a transformer, includinga first switch, including a first terminal coupled with the second end of the primary winding, a second terminal coupled with the first constant voltage node, and a first control terminal to receive a first switching control signal;a second switch, including a first terminal coupled with the second end of the secondary winding, a second terminal coupled with a second constant voltage node, and a second control terminal to receive a second switching control signal;{'b': '117', 'a first control circuit, including an input coupled with the first end of the auxiliary winding to receive a first signal representing a voltage of the auxiliary winding, and an output () to provide the first switching control signal to the first switch, the first control circuit operative in a first mode to independently turn the first switch on and off in a plurality of power transfer cycles, the first control circuit operative in a second mode to initiate a power transfer cycle by turning the first switch on and off, in ...

USER-DEFINED VIRTUAL INTERACTION SPACE AND MANIPULATION OF VIRTUAL CAMERAS IN THE INTERACTION SPACE

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture. 1. A method for defining interface modalities in a three dimensional (3D) sensor space , the method including:detecting a control gesture made by a control object moving in a three dimensional (3D) sensor space, wherein the control gesture includes a curved sweep that defines a collection of points within a distance to a point in the 3D sensor space;calculating gesture parameters of the control gesture that was detected; anddefining spatial attributes for an interaction modality in the 3D sensor space responsive to the gesture parameters of the control gesture; andmanipulating controls in a virtual interaction space based upon a linked correspondence with the interaction modality to an image presented to a viewer.2. The method of claim 1 , wherein the gesture parameters include at least length and width of the control gesture.3. The method of claim 1 , wherein the gesture parameters include at least structure claim 1 , scale claim 1 , orientation claim 1 , or density of the control object.4. The method of claim 1 , wherein spatial attributes include at least height and width of an interaction space.5. The method of claim 1 , wherein spatial attributes include at least numerosity of elements in the interaction modality.6. The method of claim 1 , further including detecting a context-setting control ...

Pseudo current tracking for power supply regulation

A power supply circuit includes a regulation circuit that receives an input voltage and provides a regulated output voltage based on the input voltage. The regulation circuit includes a switch device having a switched output that generates a ripple current waveform in the current regulator to provide the regulated output voltage. A control circuit includes a pseudo current tracker (PCT) that is operatively coupled to the regulation circuit. The PCT receives a reference voltage and generates a ripple voltage waveform that is proportional to the ripple current waveform. The control circuit commands the switch device to generate the ripple current waveform based on the ripple voltage waveform such that the regulated output voltage approximates the reference voltage.

DEVICE FOR PRINTING A THREE DIMENSIONAL COSMETIC ARTICLE FROM A BUILD MATERIAL COMPRISING A COSMETIC FORMULA

A device printing a three dimensional cosmetic article from a build material including a cosmetic formula has an extruder, a build plate, a controller and a positioning system. The controller is programmed to instruct the positioning system to position the extruder relative to the build plate. The extruder includes a piston extrusion system. The build material is provided to the extruder as a pre-formed stick. The build material is extruded onto a substrate to form the article. The build plate includes a sizing system for receiving substrates of various sizes. 1. A device for printing a three dimensional cosmetic article from a build material comprising a cosmetic formula , the device comprising: a barrel having an inner wall defining a cylinder, the cylinder having a first end and a second end;', 'a piston mounted in the first end of the cylinder such that the piston is able to advance and retract in the cylinder, the piston having a front wall and a rear wall connected by an outwardly directed sidewall, the sidewall shaped and dimensioned to fit closely in the cylinder, the front wall of the piston directed toward the second end of the cylinder;', 'an extrusion nozzle secured to the second end of the cylinder;', 'a reservoir for receiving a quantity of the build material, the reservoir defined by a portion of the cylinder between the front wall of the piston and the nozzle, the piston adapted to apply pressure to the build material to extrude the build material through the nozzle when the piston is advanced in the cylinder and to apply suction to the build material to withdraw the build material into the nozzle when the piston is retracted in the cylinder; and', 'a motor connected to the piston to advance and retract the piston; and, 'an extruder includinga build plate located below the nozzle;a substrate for supporting the cosmetic article, the substrate removably secured on the build plate between the build plate and the nozzle to receive the build material from ...

METHOD AND APPARATUS FOR CALCULATING AN AVERAGE VALUE OF AN INACCESSIBLE CURRENT FROM AN ACESSIBLE CURRENT

In a power converter, a circuit determines an average value of an inaccessible current from an average value of an accessible current and a value of the operating duty cycle of the converter. A method of measuring an average value of an inaccessible current from a measured value of a current in a power converter by a duty cycle of a pulse width modulation (PWM) signal representing a duty cycle of the power converter. Coupling a voltage representing the measured value to an input of a low pass filter during a time period (D) and coupling the input of the low pass filter to a reference voltage during a time period (1−D). 1. A buck converter having a regulated output current comprising:a current measuring device measuring an input current to the converter;a switch coupled to the current measuring device;a pulse width modulation (PWM) circuit coupled to receive an output voltage from the measuring device;an analog multiplier coupled to an output of the pulse width modulation (PWM) circuit to receive a signal (D) related to the duty cycle of the regulator and to a voltage representative of a predetermined value of output current from the converter.2. The converter of wherein the analog multiplier comprises:a first switch coupled between the voltage representative of the predetermined value of output current and a node;a second switch coupled between the node and a reference voltage;a low pass filter coupled between the node and input to an error amplifier, wherein the first switch is operated by a signal representative of (D) and the second switch is operated by a signal representative of (1−D).3. The converter of wherein the pulse width modulation (PWM) circuit comprises an error amplifier coupled to the current measuring device by a resistor and capacitor in a feedback loop of the error amplifier claim 2 , the resistor and capacitor averaging the output voltage from the measuring device to generate a signal related to average input current to the converter.4. The ...

METHOD AND APPARATUS FOR CALCULATING AN AVERAGE VALUE OF AN INACCESSIBLE CURRENT FROM AN ACESSIBLE CURRENT

In a power converter, a circuit determines an average value of an inaccessible current from an average value of an accessible current and a value of the operating duty cycle of the converter. A method of measuring an average value of an inaccessible current from a measured value of a current in a power converter by a duty cycle of a pulse width modulation (PWM) signal representing a duty cycle of the power converter. Coupling a voltage representing the measured value to an input of a low pass filter during a time period (D) and coupling the input of the low pass filter to a reference voltage during a time period (1−D). 1. A buck converter having a regulated output current comprising:a current measuring device measuring an input current to the converter;a switch coupled to the current measuring device;a pulse width modulation (PWM) circuit coupled to receive an output voltage from the measuring device;an analog multiplier coupled to an output of the pulse width modulation (PWM) circuit to receive a signal (D) related to the duty cycle of the regulator and to a voltage representative of a predetermined value of output current from the converter.2. The converter of wherein the analog multiplier comprises:a first switch coupled between the voltage representative of the predetermined value of output current and a node;a second switch coupled between the node and a reference voltage;a low pass filter coupled between the node and input to an error amplifier, wherein the first switch is operated by a signal representative of D and the second switch is operated by a signal representative of (1−D).3. The converter of wherein the pulse width modulation (PWM) circuit comprises an error amplifier coupled to the current measuring device by a resistor and capacitor in a feedback loop of the error amplifier claim 2 , the resistor and capacitor averaging the output voltage from the measuring device to generate a signal related to average input current to the converter.4. The ...

CIRCUIT AND METHOD FOR GENERATING A REFERENCE VOLTAGE FOR A POWER CONVERTER

Circuits and methods for generating a reference voltage for a power converter control are disclosed herein. The power converter control providing a signal on an output for aligning the voltage and current on a power line so that they are in phase. An embodiment of a circuit includes a voltage detector that detects the voltage on the power line. A signal generator generates a wave that is in phase with voltage on the power line, the wave being generated independent of the voltage on the power line. The output of the signal generator is the reference voltage. 1. A circuit for generating a reference voltage for a power converter control , the power converter control syncing the phase the voltage and current on a power line , the power converter control having an input for the reference voltage and an output , the circuit comprising:a voltage detector that detects the voltage on the power line; anda signal generator that generates a wave that is in phase with the voltage on the power line, the wave being generated independent of the voltage on the power line;wherein the output of the signal generator is the reference voltage.2. The circuit of claim 1 , wherein the voltage on the power line is a rectified sine wave and wherein the voltage detector detects the low voltage between cycles of the rectified sine wave.3. The circuit of claim 2 , wherein the signal generator commences generating the wave when the voltage detector detects the low voltage between cycles of the rectified sine wave.4. The circuit of claim 1 , wherein the voltage on the power line is a rectified sine wave; wherein the voltage detector detects the low voltage between cycles of the rectified sine wave; and wherein the signal generator generates a triangular wave commencing when the voltage detector detects the low voltage between cycles.5. The circuit of claim 1 , wherein the signal generator comprises:a counter that generates numbers when the voltage detector detects a predetermined voltage; anda ...

User-Defined Virtual Interaction Space and Manipulation of Virtual Configuration

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture. 1. A computer implemented method of manipulating a virtual camera in a three dimensional (3D) sensor space , the method including:receiving a definition defining parameters of a virtual camera;detecting a first control gesture of a control object that defines a starting point in a three dimensional (3D) sensor space for the virtual camera;detecting a second control gesture of the control object that defines a continuous contour through time in the 3D sensor space;detecting a third control gesture of the control object that defines a finishing point of the virtual camera in the 3D sensor space;determining a continuous contour between the starting point and the finishing point; andmoving the virtual camera along the continuous contour between the starting point and the finishing point.2. The method of claim 1 , further including determining a focal length of the virtual camera responsive to distance of a finger of a hand comprising the control object from the continuous contour.3. The method of claim 2 , further including defining a field of view and orientation of the virtual camera responsive to a detected orientation of the finger.4. The method of claim 1 , further including mapping the continuous contour to a straight line and moving the virtual camera along the straight line.5. The method of claim ...

VELOCITY FIELD INTERACTION FOR FREE SPACE GESTURE INTERFACE AND CONTROL

The technology disclosed relates to automatically interpreting a gesture of a control object in a three dimensional sensor space by sensing a movement of the control object in the three dimensional sensor space, sensing orientation of the control object, defining a control plane tangential to a surface of the control object and interpreting the gesture based on whether the movement of the control object is more normal to the control plane or more parallel to the control plane. 1. A method including: sensing a movement of the control object in the three dimensional sensor space;', 'sensing orientation of the control object;', 'defining a control plane tangential to a surface of the control object; and', 'interpreting the gesture based on whether the movement of the control object is more normal to the control plane or more parallel to the control plane., 'automatically interpreting a gesture of a control object in a three dimensional sensor space by2. The method of claim 1 , wherein:the control object is a hand; andthe control plane is tangential to a palm or back of the hand.3. The method of claim 1 , wherein interpreting the gesture based on whether the movement of the control object is more normal to the control plane or more parallel to the control plane includes:calculating an angular trajectory of the movement of the control object; anddetermining whether the gesture engages a virtual control based on whether the trajectory is more normal or more parallel to the control plane.4. A method including:automatically interpreting a gesture of a control object in a three dimensional sensor space relative to a flow depicted in a display by:sensing a movement of the control object in the three dimensional sensor space;sensing orientation of the control object;defining a control plane tangential to a surface of the control object; andinterpreting the gesture based on whether the control plane and the movement of the control object are more normal or more parallel to the ...

ADAPTIVE BUS VOLTAGE AUTO-SELECTION SYSTEM

One example includes an adaptive bus voltage auto-selection system. The system includes an input bridge configured to rectify an AC input line voltage to generate a DC bus voltage. The system also includes a voltage monitor configured to monitor an amplitude of the AC input line voltage and to generate an activation signal based on the amplitude of the AC input line voltage relative to a predetermined reference voltage. The system further includes an anti-series transistor switch pair that is controlled via the activation signal to selectively couple and de-couple the input bridge to an output stage to provide the DC bus voltage at a first amplitude based on a first state of the activation signal and at a second amplitude based on a second state of the activation signal, respectively. 1. An adaptive bus voltage auto-selection system comprising:an input bridge configured to rectify an AC input line voltage to generate a DC bus voltage;a voltage monitor configured to monitor an amplitude of the AC input line voltage and to generate an activation signal based on the amplitude of the AC input line voltage relative to a predetermined reference voltage; andan anti-series transistor switch pair that is controlled via the activation signal to selectively couple and de-couple the input bridge to an output stage to provide the DC bus voltage at a first amplitude based on a first state of the activation signal and at a second amplitude based on a second state of the activation signal, respectively.2. The system of claim 1 , wherein the output stage comprises:a first capacitor interconnecting a control node and a first bus node; anda second capacitor interconnecting the control node and a second bus node, the DC bus voltage being provided on the first bus node relative to the second bus node.3. The system of claim 2 , wherein the anti-series transistor switch pair is configured to couple the input bridge to the control node in response to being activated via the activation ...

VELOCITY FIELD INTERACTION FOR FREE SPACE GESTURE INTERFACE AND CONTROL

The technology disclosed relates to automatically interpreting a gesture of a control object in a three dimensional sensor space by sensing a movement of the control object in the three dimensional sensor space, sensing orientation of the control object, defining a control plane tangential to a surface of the control object and interpreting the gesture based on whether the movement of the control object is more normal to the control plane or more parallel to the control plane. 1. A method of automatically interpreting a gesture of a control object , in a three-dimensional (3D) sensor space using a 3D sensor , as a first gesture or a second gesture , the method including:defining a control plane that remains tangent to a surface of the control object throughout a sensed movement of the control object in any direction in the 3D sensor space, the control plane being defined by an orientation of the control object, as sensed by a video camera of the 3D sensor; the gesture is the first gesture when the direction of the trajectory of the movement of the control object is within a pre-determined range of the normal vector of the control plane; and', 'the gesture is the second gesture when the direction of the trajectory of the movement of the control object is parallel to the surface of the control plane, within a pre-determined range,', 'such that the gesture is the first gesture when the direction of the movement of the trajectory of the control object is more normal to the surface of the control plane than parallel to the surface of the control plane and the gesture is the second gesture when the direction of the movement of the trajectory of the control object is more parallel to the surface of the control plane than normal to the surface of the control plane., 'interpreting the gesture of the control object as the first gesture or the second gesture by comparing a direction of a sensed trajectory of the movement of the control object to (i) a normal vector that is ...

User-Defined Virtual Interaction Space and Manipulation of Virtual Cameras in the Interaction Space

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture. 1. A method for defining interface modalities in a three dimensional (3D) sensor space , the method including:detecting a control gesture made by a control object moving in a three dimensional (3D) sensor space, wherein the control gesture includes at least one portion having a curved sweep that defines a collection of points within a distance to a point in the 3D sensor space;obtaining for the control gesture that was detected at least one of gesture parameters and context-aware elements of an interaction modality; anddefining spatial attributes for an interaction modality in the 3D sensor space responsive to the at least one of obtained gesture parameters and context-aware elements of the control gesture.2. The method of claim 1 , wherein the gesture parameters include at least length and width of the control gesture.3. The method of claim 1 , wherein the gesture parameters include at least structure claim 1 , scale claim 1 , orientation claim 1 , or density of the control object.4. The method of claim 1 , wherein spatial attributes include at least height and width of an interaction space.5. The method of claim 1 , wherein spatial attributes include at least numerosity of elements in the interaction modality.6. The method of claim 1 , further including detecting a context-setting control gesture ...

Microneedles Comprising One Or More Cosmetic Ingredients

An applicator for applying cosmetic agents into human skin, comprising: (a) a base, (b) a plurality of microneedles fixed to said base and projecting therefrom a distance sufficient to penetrate into the skin, said microneedles being made of a material that is capable of disintegration and dispersion into the skin, and (c) a cosmetic agent carried by said microneedles for delivery by said microneedles into the skin. 1. An applicator for applying cosmetic agents into human skin , comprising: (a) a base , (b) a plurality of microneedles fixed to said base and projecting therefrom a distance sufficient to penetrate into the skin , said microneedles being made of a material that is capable of disintegration and dispersion into the skin , and (c) a cosmetic agent carried by said microneedles for delivery by said microneedles into the skin.2. An applicator according to wherein said cosmetic agent is distributed in the material of said microneedles.3. An applicator according to wherein said cosmetic agent is distributed homogeneously throughout said microneedles.4. An applicator according to wherein said cosmetic agent is encapsulated in said microneedles.5. An applicator according to wherein said base and said microneedles are integrally molded from the same material.6. An applicator according to wherein said cosmetic agent is distributed homogeneously throughout said base and microneedles.7. An applicator according to wherein said microneedles are generally cone shaped.8. An applicator according to wherein said microneedles are square in cross-section.9. An applicator according to wherein said microneedles are polygonal in cross-section.10. An applicator according to and wherein said microneedles are at least partially elliptical in cross-section.11. An applicator according to wherein the material of said needles is substantially sugars that dissolve within the human body.12. An applicator according to wherein said microneedles are constricted intermediate their ends to ...

MULTIMODE PWM CONVERTER WITH SMOOTH MODE TRANSITION

Control circuits and methods to operate a switch of a DC-DC converter, including an output circuit to turn the switch off to control a peak inductor current in a given switching control cycle, and a modulation circuit to implement transition mode (TM) or continuous conduction mode (CCM) operation for a given switching control cycle by causing the output circuit to turn the switch on in response to an earlier one of a first signal, that represents an inductor current of the DC-DC converter, decreasing to a reference voltage that represents a zero crossing of the inductor current for the TM operation or the first signal decreasing to a valley reference signal that represents a non-zero value of the inductor current for the CCM operation. 1. A modulation circuit to operate a switch of a DC-DC converter , the modulation circuit comprising:a first comparator, including a first input terminal connected to a first node, a second input terminal connected to a second node, and a first comparator output terminal coupled to a first modulator output node to turn the switch off when a voltage at the second node equals or exceeds a voltage at the first node;a second comparator, including a first input terminal connected to the second node, a second input terminal connected to a third node, and a second comparator output terminal coupled to a second modulator output node to turn the switch on when the voltage at the second node is less than or equal to a voltage at the third node;a first offset circuit, including a first terminal connected to the first node, a second terminal connected to the second node, and a third terminal coupled to a fourth node; anda second offset circuit, including a first terminal connected to the fourth node, and a second terminal connected to the third node.2. The modulation circuit of claim 1 ,wherein the first offset circuit is configured to control a voltage at the fourth node to be different from the voltage at the first node; andwherein the second ...

Synchronous rectifier drive and soft switching circuit

A circuit includes a synchronous rectifier that receives an alternating current (AC) voltage from a transformer secondary and provides a rectified direct current (DC) output voltage in response to a control input signal. A secondary rectifier switching circuit generates the control input signal. A current replica circuit generates a control voltage that replicates a current in the transformer secondary. The control voltage is employed to control switching of the secondary rectifier switching circuit based on the current in the transformer secondary. An offset circuit forces the control voltage in a predetermined direction to mitigate voltage error accumulations in the current replica circuit. A clamp circuit limits the control voltage to a predetermined voltage value.

Apparatus and Method for Generating In-Focus Images Using Parallel Imaging in a Microscopy System

A method of generating in-focus images of measurement locations of a sample holder in a microscopy imaging system is provided. A camera sensor and an array of focusing optics are positioned at a first focal distance from the sample holder. A first image of a measurement location is acquired using the camera sensor. A candidate output image associated with the camera sensor and the array of focusing optics is developed in accordance with the first image. The camera sensor with the array of focusing optics is positioned at a second distance from the sample holder and a second image of the measurement location is acquired using the camera sensor. A portion of the candidate output image is updated in accordance with a portion of the second image in accordance with a selection criterion. The updated candidate image is transmitted. 1. A method of generating in-focus images of measurement locations of a sample holder in a microscopy imaging system , the method comprising:(a) positioning a camera sensor and an array of focusing optics at a first focal distance from the sample holder;(b) acquiring a first image of a measurement location using the camera sensor;(c) developing a candidate output image associated with the camera sensor and the array of focusing optics in accordance with the first image;(d) positioning the camera sensor and the array of focusing optics at a second focal distance from the sample holder;(e) acquiring a second image of the measurement location using the camera sensor;(f) updating a portion of the candidate output image with a portion of the second image in accordance with a selection criterion; and(g) transmitting the updated candidate output image.2. The method of claim 1 , further comprising repeating steps (d) through (f) until the camera sensor has traversed a predetermined range of focus.3. The method of claim 1 , wherein updating the portion of the candidate output image comprises updating a pixel of the candidate output image.4. The method ...

FEED FORWARD CONTROLLED VOLTAGE TO CURRENT SOURCE FOR LED DRIVER

A DC to DC converter receives a DC input voltage and generates an output DC voltage. A current sensor measures a DC input current. A control circuit is coupled to the current sensor for controlling the DC to DC converter to have a constant DC input current. 1. A DC to DC converter receiving DC input voltage and generating an output DC voltage , comprising:a current sensor for measuring DC input current and generating a current signal related to the input current;a comparator circuit for comparing a signal related to the output voltage with the current signal to generate a comparison signal;a control circuit coupled to the comparator circuit and responsive to the comparison signal for controlling the DC to DC converter to have a constant DC input current and an output current that is directly proportional to the input voltage and inversely proportional to the output voltage over any input voltage.2. The DC to DC converter of wherein a load coupled to an output is an LED.3. The DC to DC converter of wherein the LED is a string of LEDs.4. The DC to DC converter of wherein an output voltage of the current sensor is compared to a fixed reference voltage for generating a comparison voltage for controlling the DC input current to the converter.5. The DC to DC converter of wherein a pulse width modulation (PWM) circuit is coupled to receive the comparison voltage.6. The DC to DC converter of wherein an output voltage of the current sensor is compared with a voltage related to the output voltage for generating a comparison voltage for controlling the DC input current to the converter.7. The DC to DC converter of wherein a pulse width modulation (PWM) circuit is coupled to receive the comparison voltage.8. The DC to DC converter of wherein the load coupled to an output is an LED.9. The DC to DC converter of wherein the output voltage of the current sensor is compared with a pulsed reference voltage generating a comparison voltage for controlling the DC input current to the ...

USER-DEFINED VIRTUAL INTERACTION SPACE AND MANIPULATION OF VIRTUAL CAMERAS IN THE INTERACTION SPACE

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture. 1. A computer implemented method of defining interface modalities in a three dimensional (3D) sensor space , the method including:detecting a control gesture of a control object in a three dimensional (3D) sensor space;calculating gesture parameters of the control gesture that was detected; anddefining spatial attributes of an interaction modality in the 3D sensor space responsive to the gesture parameters of the control gesture.2. The method of claim 1 , wherein the gesture parameters include at least length and width of the control gesture.3. The method of claim 1 , wherein the gesture parameters include at least structure claim 1 , scale claim 1 , orientation claim 1 , or density of the control object.4. The method of claim 1 , wherein the spatial attributes include at least height and width of an interaction space.5. The method of claim 1 , wherein the spatial attributes include at least numerosity of elements in the interaction modality.6. The method of claim 1 , further including detecting a context-setting control gesture that identifies a context for interpreting a subsequent control gesture that defines spatial attributes of the interaction modality.7. The method of claim 6 , wherein the context-setting control gesture is a voice claim 6 , visual claim 6 , or device command.8. The method of ...

USER-DEFINED VIRTUAL INTERACTION SPACE AND MANIPULATION OF VIRTUAL CONFIGURATION

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture. 1. A computer implemented method of creating a virtual spring in a three dimensional (3D) sensor space , the method including:detecting a lateral movement of a control object responsive to a lateral movement of a hand in a three dimensional (3D) sensor space;defining a static length of a virtual spring that is in proportion to length of the lateral movement;defining a spring constant of the virtual spring at least responsive to curling of fingers of the hand and degrees of freedom between fingers of the hand, wherein the spring constant is centered with respect to a fixed point proximate to the curled fingers and magnitude of the spring constant is calculated at least in part by a scale of curling of the fingers and degrees of freedom between the fingers; andcompounding interactions of the virtual spring with other virtual elements of the 3D sensor space.2. A computer implemented method of controlling a virtual camera in a three dimensional (3D) sensor space , the method including:detecting a circular sweep around a virtual object responsive to a control gesture of a control object in a three dimensional (3D) sensor space;calculating a radius of the circular sweep responsive to a found point that is equidistant to a plurality of points defined on contour of the control gesture; constructing a virtual ...

Method and System for Classifying and Identifying Individual Cells in a Microscopy Image

In a method and system for identifying objects in an image, an image and training data are received. The training data identifies a pixel associated with an object of a particular type in the image. A plurality of filtered versions of the image are developed. The training data and the plurality of filtered versions of the image are processed to develop a trained model for classifying pixels associated with objects of the particular type. The trained model is applied to the image to identify pixels associated a plurality of objects of the particular type in the image. Additional image processing steps are developed to further refine the identified pixels for better fitting of the contour of the objects with their edges. 1. A computer-implemented method of classifying pixels associated with objects in an image , comprising:receiving an image;receiving training data, wherein the training data identifies a pixel associated with an object of a particular type in the image;applying a first set of filters to the image to develop one or more filtered versions of the image;processing the training data and the one or more filtered versions of the image to develop a first set of rules for classifying pixels associated with objects of the particular type;applying each rule of the first set of rules to the image;evaluating the effectiveness of each rule of the first set of rules in identifying pixels associated with the object of the particular type;selecting one or more rules from the first set of rules to develop a second set of rules, wherein each selected rule is able to correctly classify at least a predetermined portion of pixels in the image; andidentifying a second set of filters to be applied to subsequent images, the second set of filters comprising only those filters associated with the rules that comprise the second set of rules.2. The computer-implemented method of claim 1 , wherein applying rules of the second set of rules to the image identifies pixels associated ...

Particles With Cross-Linked Coatings For Cosmetic Applications

The present invention relates to a cosmetic composition comprising core particles in a cosmetically or pharmaceutically acceptable carrier, wherein the core particles comprise a heat-curable coating which is the reaction product of a vinyl-functional silicone polymer, a hydride-functional crosslinker, and a metal catalyst. 1. A cosmetic composition comprising core particles in a cosmetically or pharmaceutically acceptable carrier , wherein said core particles comprise a heat-curable coating which is the reaction product of a vinyl-functional silicone polymer , a hydride-functional crosslinker , and a metal catalyst.2. A cosmetic composition according to claim 1 , wherein said coating is catalyzed by a metal selected from the group consisting of ruthenium claim 1 , rhodium claim 1 , palladium claim 1 , osmium claim 1 , iridium and platinum claim 1 , and complexes and mixtures thereof.3. The cosmetic composition according to claim 1 , wherein said coating is cured at a temperature above about 80° C.4. The topical composition of claim 2 , wherein the core particle comprises titanium dioxide claim 2 , zinc oxide claim 2 , or a combination thereof. The present invention relates to topical compositions comprising coated particles for preventing bleeding of colored particles and/or providing particle stability in a solvent system, as well as methods of making the same.Cosmetic or topical compositions typically comprise one or more particulate components, such as, for example, pigments or dyes, fillers, thickeners, sunscreen agents, and the like. Such particulate components are often insoluble in the respective solvent or carrier system and if so remain dispersed or suspended in the cosmetic or topical compositions.The menu of suitable particulate components is limited by factors such as stability, incompatibility with other cosmetic components, skin irritability, reactivity, and the like. In the case of color cosmetics, many pigments and/or dyes which are soluble in oils ...

BUS CONVERTER CURRENT RIPPLE REDUCTION

In described examples, a circuit includes a first, a second, and a third resonant power converter. Each of the first, second, and third resonant power converters includes a respective periodic signal generator, a respective resonant network, and a respective rectifier. Each periodic signal generator is coupled to receive a direct-current (DC) power input and a respective phase signal. Each resonant network is coupled to receive a sinusoidal output current from the respective periodic signal generator. Each rectifier is coupled to receive a sinusoidal output current from the respective resonant network. The circuit further includes a current summer coupled to receive a rectified current from each respective rectifier. 1. A circuit , comprising:a first resonant power converters;a second resonant power converters;a third resonant power converter; anda current summer coupled to receive a first rectified current from the first resonant power converter, a second rectified current from the second resonant power converter, and a third rectified current from the third resonant power converter;wherein the first, second, and third power converters each include a first diode, a second diode, a first capacitor, and a second capacitor arranged in a voltage doubler configuration.2. The circuit of claim 21 , wherein the current summer is connected to an output of the first rectifier claim 21 , an output of the second rectifier claim 21 , and an output of the third rectifier.3. The circuit of claim 21 , wherein a first alternating-current (AC) component of the first sinusoidal output current claim 21 , a second AC component of the second sinusoidal output current claim 21 , and a third AC component of the third sinusoidal output current are mutually reduced by the current summer.4. The circuit of claim 21 , wherein the first phase signal indicates a phase difference of 120 degrees from a phase indicated by the second phase signal and a phase difference of 240 degrees from a phase ...

METHOD AND APPARATUS FOR CALCULATING AN AVERAGE VALUE OF AN INACCESSIBLE CURRENT FROM AN ACESSIBLE CURRENT

In a power converter, a circuit determines an average value of an inaccessible current from an average value of an accessible current and a value of the operating duty cycle of the converter. A method of measuring an average value of an inaccessible current from a measured value of a current, in a power converter, by a duty cycle of a pulse width modulation (PWM) signal, representing a duty cycle of the power converter. Coupling a voltage representing the measured value to an input of a low pass filter during a time period (D) and coupling the input of the low pass filter to a reference voltage during a time period (D). 1. A power regulator , comprising:a reference voltage source;a pulse width modulation (PWM) circuit having an input and an output; and a first input coupled to the reference voltage source;', 'a second input coupled to the output of the PWM circuit; and', 'a multiplier output; and, 'an analog multiplier circuit havinga feedback path coupled between the multiplier output and the input of the PWM circuit.2. The power regulator of claim 1 , wherein the reference voltage source is configured to generate a constant voltage for regulating an input current.3. The power regulator of claim 1 , wherein the analog multiplier circuit includes:a low pass filter having a filter input and a filter output coupled to the multiplier output;a first switch coupled between the first input and the filter input, and having a first control terminal coupled to the second input;an inverter having an inverter input coupled to the second input and an inverter output; anda second switch coupled between the filter input and a ground terminal, and having a second control terminal coupled to the inverter output.4. The power regulator of claim 1 , wherein the analog multiplier circuit is configured to generate a regulated voltage at the multiplier output claim 1 , and the regulated voltage is representative of a multiplication of a constant voltage from the reference voltage source ...

Method and Compositions For Improving Appearance Of Skin

A method for making a composite particulate comprised of a colorant portion and a clear thermoplastic portion and cosmetic compositions containing the composite particulate. 1. A method for making a composite particulate having a portion comprised of at least one colorant and a portion comprised of at least one clear or translucent thermoplastic material comprising the steps of:(a) solvating the clear or translucent thermoplastic material with solvent in an amount sufficient to swell the material;(b) combining the solvated mixture of (a) with one or more colorants;(c) removing the solvent to form a composite particulate.2. The method of wherein the clear or translucent thermoplastic material is in the form of hollow or solid spheres.3. The method of wherein the clear or translucent thermoplastic material has a refractive index ranging from 1.4 to 1.6.4. The method of wherein the clear or translucent thermoplastic material has a density ranging from 0.5 to 5 grams/cm.5. The method of wherein the clear or translucent thermoplastic material has a melting point ranging from 50 to 200° C.6. The method of wherein the clear or translucent thermoplastic material is in the form of solid or hollow spheres having a refractive index ranging from 1.4 to 1.6; a density ranging from 0.5 to 5 grams/cm; and a melting point ranging from 50 to 200° C.7. The method of wherein the solvent has a Hildebrand Solubility Parameter ranging from about 1 to 16 (calories/cm)8. The method of wherein the solvent is acetone claim 7 , xylene claim 7 , methylethyl ketone (MEK) claim 7 , dimethylformamide claim 7 , dimethylchloride claim 7 , trichloroethylene claim 7 , trichloromethane claim 7 , methanol claim 7 , ethanol claim 7 , isopropanol claim 7 , ethyl acetate claim 7 , butyl acetate claim 7 , toluene claim 7 , benzene claim 7 , cyclohexane claim 7 , amyl acetate claim 7 , carbon tetrachloride claim 7 , toluene claim 7 , tetrahydrofuran claim 7 , benzene claim 7 , diacetone alcohol claim 7 , ...

Method and Compositions For Improving Appearance Of Skin

A method for improving the appearance of skin depth, dimensionality or undertones by topically applying a composition containing composite particulates made by (a) solvating a clear or translucent thermoplastic material with solvent in an amount sufficient to swell the material; (b) combining the solvated mixture of (a) with one or more colorants; (c) removing the solvent to form a composite particulate, (d) formulating the composite particulate into a topical cosmetic composition for application to skin. 1. A method for imparting color to skin while improving the appearance of skin dimensionality , depth , or undertones by applying a composition comprising a composite particulate having a portion comprised of at least one colorant and a portion comprised of at least one clear or translucent thermoplastic material wherein the composite particulate is made by (a) solvating a clear or translucent thermoplastic material with solvent in an amount sufficient to swell the material; (b) combining the solvated mixture of (a) with one or more colorants; (c) removing the solvent to form a composite particulate , (d) formulating the composite particulate into a topical cosmetic composition for application to skin.2. The method of wherein the solvent is acetone claim 1 , xylene claim 1 , methylethyl ketone (MEK) claim 1 , dimethylformamide claim 1 , dimethylchloride claim 1 , trichloroethylene claim 1 , trichloromethane claim 1 , methanol claim 1 , ethanol claim 1 , isopropanol claim 1 , ethyl acetate claim 1 , butyl acetate claim 1 , toluene claim 1 , benzene claim 1 , cyclohexane claim 1 , amyl acetate claim 1 , carbon tetrachloride claim 1 , toluene claim 1 , tetrahydrofuran claim 1 , benzene claim 1 , diacetone alcohol claim 1 , ethylene dichloride claim 1 , methylene chloride claim 1 , DMSO claim 1 , morpholine claim 1 , cellosolve claim 1 , pyridine claim 1 , propanol; or Cmono- or dialkyl ethers of ethylene glycol claim 1 , or mixtures thereof.3. The method of wherein ...

BATTERY CHARGING SYSTEM

One example includes a battery charging system configured to charge a battery associated with a mobile device. The battery charging system includes a transformer configured to receive an AC charging current via a charging cable at a primary inductor and to generate an AC secondary current at a secondary inductor. The battery charging system also includes a rectifier system configured to rectify and filter the AC secondary current to generate a DC charging current that is provided to charge the battery. 1. A battery charging system configured to charge a battery associated with a mobile device , the battery charging system comprising:a transformer configured to receive an AC charging current via a charging cable at a primary inductor and to generate an AC secondary current at a secondary inductor; anda rectifier system configured to rectify and filter the AC secondary current to generate a DC charging current that is provided to charge the battery.2. The system of claim 1 , wherein the AC charging current is provided via a first conductor of the charging cable claim 1 , the system further comprising a charge controller configured to monitor an amplitude of a battery voltage and an amplitude of the AC charging current claim 1 , and to generate a DC feedback control voltage claim 1 , the AC charging current having an amplitude that is based on the DC feedback control voltage.3. The system of claim 2 , wherein the charge controller is configured to monitor the amplitude of the AC charging current based on monitoring a voltage associated with the AC charging current at a monitoring node claim 2 , the system further comprising an isolation capacitor that interconnects a second conductor of the charging cable and the monitoring node claim 2 , such that the charge controller adds the DC feedback control voltage to the voltage associated with the AC charging current at the second conductor of the charging cable.4. The system of claim 2 , further comprising an AC adapter that ...

METHOD AND SYSTEM FOR CLASSIFYING AND IDENTIFYING INDIVIDUAL CELLS IN A MICROSCOPY IMAGE

In a method and system for identifying objects in an image, an image and training data are received. The training data identifies a pixel associated with an object of a particular type in the image. A plurality of filtered versions of the image are developed. The training data and the plurality of filtered versions of the image are processed to develop a trained model for classifying pixels associated with objects of the particular type. The trained model is applied to the image to identify pixels associated a plurality of objects of the particular type in the image. Additional image processing steps are developed to further refine the identified pixels for better fitting of the contour of the objects with their edges. 1. A computer-implemented method of classifying pixels associated with objects in an image , comprising:receiving an image;receiving training data, wherein the training data identifies a pixel associated with an object of a particular type in the image;developing a plurality of filtered versions of the image;processing the training data and the plurality of filtered versions of the image to develop a trained model for classifying pixels associated with objects of the particular type;applying the trained model to the image to identify pixels associated with a plurality of objects of the particular type in the image; andimaging processing steps to refine an object segmentation,2. The computer-implemented method of claim 1 , wherein applying the trained model identifies pixels associated with boundaries between confluent objects of the particular type in the image.3. The computer-implement method of claim 1 , wherein the particular type is a biological cell and applying the trained model identifies pixels associated with boundaries between confluent biological cells in the image.4. The computer-implemented method of claim 3 , further comprising receiving a further image and applying the trained model to the further image to identify pixels associated ...

USER-DEFINED VIRTUAL INTERACTION SPACE AND MANIPULATION OF VIRTUAL CAMERAS WITH VECTORS

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture. 1. A method of interacting with a virtual vector field in a three-dimensional (3D) sensor space , the method including:defining a vector field at least responsive to curling of fingers of a hand and degrees of freedom between fingers of the curled fingers;constructing a virtual sphere along a plurality of points on contour of curled fingers in the 3D sensor space;extending radially, inward or outward, one or more interaction vectors on the virtual sphere, wherein magnitudes of the interaction vectors are determined by a radius of the virtual sphere;compounding interactions of the vector field with the interaction vectors based on their respective magnitudes; andproviding for display a user manipulable persistent rendering of the constructed virtual sphere, wherein a radius of the persistent rendering of the constructed virtual sphere increases and decreases in proportion to the inward or outward extending of the one or more interaction vectors of the virtual sphere.2. The method of claim 1 , wherein a motion of the displayable rendering varies in proportion to the compounding interactions of the vector field with the one or more interaction vectors of the virtual sphere.3. A method of manipulating virtual objects in a three-dimensional (3D) sensor space claim 1 , the method including:creating a ...

USER-DEFINED VIRTUAL INTERACTION SPACE AND MANIPULATION OF VIRTUAL CAMERAS IN THE INTERACTION SPACE

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture. 1. A method for defining interface modalities in a three dimensional (3D) sensor space , the method including:detecting a control gesture made by a control object moving in a three dimensional (3D) sensor space, wherein the control gesture includes a curved sweep that defines a collection of points within a distance to a point in the 3D sensor space;obtaining for the control gesture that was detected at least one of gesture parameters and context-aware elements of an interaction modality; anddefining spatial attributes for an interaction modality in the 3D sensor space responsive to the at least one of obtained gesture parameters and context-aware elements of the control gesture.2. The method of claim 1 , wherein the gesture parameters include at least length and width of the control gesture.3. The method of claim 1 , wherein the gesture parameters include at least structure claim 1 , scale claim 1 , orientation claim 1 , or density of the control object.4. The method of claim 1 , wherein spatial attributes include at least height and width of an interaction space.5. The method of claim 1 , wherein spatial attributes include at least numerosity of elements in the interaction modality.6. The method of claim 1 , further including detecting a context-setting control gesture that identifies a context for ...

AC-DC CONVERTER HAVING SOFT-SWITCHED TOTEM-POLE OUTPUT

An AC-DC converter has a totem-pole output circuit having first and second semiconductor switches, each having a channel coupled to a switching node and having a parasitic capacitance associated with the channel. An inductor has one terminal thereof connected to a switching node. First and second bypass devices are coupled to a second terminal of the inductor and operable during at least a portion of an input voltage to allow reverse current from an output of the converter to generate soft-switching of the first semiconductor switch. An asymmetrical shunt for measuring current in a first direction and bypassing current in a second direction opposite the first direction allows accurate measurement of reverse current. 1. An AC-DC converter comprising:a totem-pole output circuit having first and second semiconductor switches, each having a channel coupled to a switching node and having a parasitic capacitance associated with the channel;an inductor having one terminal thereof connected to a switching node;a first bypass device coupled to a second terminal of the inductor and being operable during at least a portion of a positive cycle of an input voltage to allow reverse current from an output of the AC-DC converter to generate soft-switching of the first semiconductor switch; anda second bypass device coupled to the second terminal of the inductor and being operable during at least a portion of a negative cycle of the input voltage to allow reverse current from the output of the AC-DC converter to generate soft-switching of the second semiconductor switch.2. The AC-DC converter of wherein the bypass devices are semiconductor switches.3. The AC-DC converter of wherein the bypass devices are capacitors.4. The AC-DC converter of wherein the reverse current discharges voltage on the first and second parasitic capacitances to generate the soft-switching of the first and second semiconductor switches.5. The AC-DC converter of further comprising a first rectifier diode in ...

Velocity field interaction for free space gesture interface and control

The technology disclosed relates to automatically interpreting a gesture of a control object in a three dimensional sensor space by sensing a movement of the control object in the three dimensional sensor space, sensing orientation of the control object, defining a control plane tangential to a surface of the control object and interpreting the gesture based on whether the movement of the control object is more normal to the control plane or more parallel to the control plane.

VELOCITY FIELD INTERACTION FOR FREE SPACE GESTURE INTERFACE AND CONTROL

The technology disclosed relates to automatically interpreting a gesture of a control object in a three dimensional sensor space by sensing a movement of the control object in the three dimensional sensor space, sensing orientation of the control object, defining a control plane tangential to a surface of the control object and interpreting the gesture based on whether the movement of the control object is more normal to the control plane or more parallel to the control plane. 1. A method of automatically interpreting a gesture of a control object , in a three-dimensional (3D) sensor space using a 3D sensor , as a first gesture , the method including:determining that the gesture is the first gesture when a direction of a sensed trajectory of a sensed movement of the control object is within a pre-determined range of a normal vector that is normal to a defined control plane that remains tangent to a surface of the control object throughout a sensed movement of the control object in any direction in the 3D sensor space, the control plane being defined by an orientation of the control object as sensed by a video camera, whereby the direction of the movement of the trajectory of the control object is more normal to a surface of the control plane than parallel to the surface of the control plane.2. The method of claim 1 , further comprising determining that the gesture is the second gesture when the direction of the trajectory of the movement of the control object is parallel to the surface of the control plane claim 1 , within a pre-determined range claim 1 , whereby the direction of the movement of the trajectory of the control object is more parallel to the surface of the control plane than normal to the surface of the control plane.3. The method of claim 1 , wherein:the control object is a hand; andthe control plane is tangent to a palm or back of the hand.4. The method of claim 1 , wherein the interpreting of the gesture includes:calculating an angular trajectory of ...

Imaging System with Ancillary Image Detector for Sample Location

Imaging systems and methods using an ancillary image detector for sample location. An exemplary system may comprise a light source to irradiate a sample on an irradiation axis, a first image detector on an optical axis oblique to the irradiation axis, and a stage. The system also may comprise a second image detector disposed on an imaging axis, and a drive mechanism configured to move the stage and the imaging axis relative to one another. The system further may comprise a processor configured to (a) receive an image of the sample detected by the first image detector, (b) determine a physical location for a region of contrast produced by the sample within the image, and (c) send a signal to the drive mechanism based on the physical location, to dispose at least part of the sample in a field of view of the second image detector. 1. An imaging system , comprising:a light source to irradiate a sample on an irradiation axis;a first image detector mounted to receive light from the irradiated sample on an optical axis oblique to the irradiation axis;a stage to support the sample;a second image detector disposed on an imaging axis;a drive mechanism configured to move the stage and the imaging axis relative to one another; anda processor configured to (a) receive an image of the sample detected by the first image detector, (b) determine a physical location for a region of contrast produced by the sample within the image, and (c) send a signal to the drive mechanism based on the physical location, to dispose at least part of the sample in a field of view of the second image detector.2. The imaging system of claim 1 , wherein the first image detector is configured to image the sample obliquely.3. The imaging system of claim 2 , wherein the processor is configured to make a keystone correction to the image detected by the first image detector.4. The imaging system of claim 3 , wherein the processor is configured to display the image to a user after making the keystone ...

User-Defined Virtual Interaction Space and Manipulation of Virtual Cameras with Vectors

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture. 1. A method of manipulating virtual objects in a three-dimensional (3D) sensor space , the method including:creating a virtual vector field in response to a control gesture that makes swirling motions in a 3D sensor space, wherein the virtual vector field is a vortex;creating a plurality of virtual objects in response to subsequent control gestures that make circular sweeps in the 3D sensor space and define object vectors on respective virtual objects;compounding interactions of the vector field with the object vectors based on their respective magnitudes; andadjusting an effect of the vortex on the virtual objects in proportion to the interactions of the vector field and the object vectors to cause the object vectors of the respective virtual objects thereby bringing one or more of the virtual objects closer to a center of the vortex or pushing one or more of the virtual objects away from the center of the vortex.2. The method of claim 1 , further comprising:determining from the control gestures the area of the vortex.3. The method of claim 1 , further comprising:determining from the plurality of virtual objects a set of virtual objects within the vortex based upon the size of the vortex; andmoving members of the set of virtual objects in unison responsive to the control gesture.4. The method of ...

System and Method for Automatically Analyzing Phenotypical Responses of Cells

A system and a method to analyze a phenotypical response of cells to a treatment are disclosed in which a model development module receives images of a plurality of reference cell carriers and treatment information associated with the plurality of reference cell carriers, identifies parameters of cells in the image that distinguish those reference cell carriers to which the treatment has been applied from other reference cell carriers, and trains a model using the identified parameters. A high-content imaging system includes an image capture device, and the image acquisition module receives from the image capture device a plurality of images of cell carriers to be evaluated. The model application module applies the trained model to the plurality of images of the cell carriers to be evaluated to predict a concentration of the treatment applied to each of the cell carriers evaluated. 1. A system to analyze a phenotypical response of a cell to a treatment , comprising:an image capture device; anda response analysis system that includes computer-executable code stored on one or more non-transitory storage devices that, when executed, causes one or more processors to:receive images of a plurality of reference cell carriers and treatment information associated with the plurality of reference cell carriers,identify parameters of images of the plurality of reference cell carriers based on the treatment information, the identified parameters distinguishing those cells in the plurality of reference cell carriers to which the treatment has been applied from other cells in the plurality of reference cell carriers,train a model using the identified parameters,receive from the image capture device an image of a cell carrier to be evaluated, andapply the trained model to the image of the cell carrier to be evaluated to indicate a response level of a cell in the cell carrier to be evaluated.2. The system of claim 1 , wherein at least one of the identified parameters is a parameter ...

METHOD AND APPARATUS FOR CALCULATING AN AVERAGE VALUE OF AN INACCESSIBLE CURRENT FROM AN ACESSIBLE CURRENT

In a power converter, a circuit determines an average value of an inaccessible current from an average value of an accessible current and a value of the operating duty cycle of the converter. A method of measuring an average value of an inaccessible current from a measured value of a current in a power converter by a duty cycle of a pulse width modulation (PWM) signal representing a duty cycle of the power converter. Coupling a voltage representing the measured value to an input of a low pass filter during a time period (D) and coupling the input of the low pass filter to a reference voltage during a time period (1−D). 1. In a switching power converter for driving an LED at a constant current comprising:a circuit for regulating the converter so that the input current equals a constant times the duty cycle D of the converter, the circuit comprising:a main switch coupled to an input voltage source and being controlled by a Pulse Width Modulated (PWM) signal;an LED coupled between the input voltage source and the main switch;a current measuring device for measuring current through the main switch;a current amplifier coupled to the current measuring device and having an output coupled to a PWM signal generator, an output of the PWM signal generator being coupled to a control electrode of the main switch and a first node;a first switch coupled between the output of the PWM signal generator and a second node;a second switch coupled between the second node and a reference voltage;a current reference being coupled to the first node;an input to the current amplifier being coupled to the second node;the first switch being controlled by the PWM signal;the second switch being controlled by an inverse of the PWM signal, whereby the current through the LED can be maintained substantially constant.2. The switching power converter of claim 1 , wherein the LED is a string of serially connected LEDs.3. The switching power converter of claim 2 , wherein the current measuring device is ...

User-Defined Virtual Interaction Space and Manipulation of Virtual Cameras with Vectors

The technology disclosed relates to creating user-defined interaction spaces and modalities in a three dimensional (3D) sensor space in response to control gestures. It also relates to controlling virtual cameras in the 3D sensor space using control gestures and manipulating controls of the virtual cameras through the control gestures. In particular, it relates to defining one or more spatial attributes of the interaction spaces and modalities in response to one or more gesture parameters of the control gesture. It also particularly relates to defining one or more visual parameters of a virtual camera in response to one or more gesture parameters of the control gesture.

Massaging Board Assembly

A massaging board assembly about the size of a person's torso containing a series of slots or holes to support two type of mounting brackets: one having an elongated form and the other having and L shape. 1. A massaging board assembly , comprising means to support mounting brackets , said brackets having a particular shape to frame a person's back , neck and upper part of the shoulders on a vertical or horizontal position , said brackets having means to hold one or more roller ball massager for enabling a hands-free self massage by a multidirectional movement of the person's own body.2. The massaging board assembly of having two hollow vertical frames on the side and back of said board claim 1 , and two horizontal frames on top and bottom of the back of said board wherein a pair of vertical stand legs can be inserted within said hollow vertical frames and fastened by a system of knobs or the like claim 1 , said vertical stand legs connected by a transversal stand tube claim 1 , whereby said board can be placed on a standing position against a background surface (E.g. wall or door) and properly adjusted to the height of the user.3. The stand legs of having feet to maintain proper balance of the said board in claim 1 , said feet having a screw hole at the bottom claim 1 , wherein a screw knob is inserted to adjust the inclination of the said board in claim 1 , whereby said massaging board assembly can be leaning against a background surface (E.g. wall or door.)4. The massaging board assembly of wherein said hollow vertical and horizontal frames in and contain means to protect any background surface from scratches when the user leans over.5. The massaging board assembly of having a groove wherein said mounting brackets can be placed and slid from side to side by means of roller wheels attached to the back of said mounting brackets whereby a user can adjust the position of the roller ball massager for self-massaging.6. The roller wheels of further comprising a mounting ...

TOPICAL DELIVERY SYSTEM CONTAINING CELLULOSE NANOFIBERS

Topical delivery systems are described. The topical delivery systems include at least one skin care active and nanocellulose in a cosmetic composition. It has been surprisingly found that the presence of nanocellulose in a cosmetic composition enhances or regulates the penetration of skin care actives. The present application further describes a cosmetic composition comprising a skin care active and nanocellulose and use thereof. 1. A topical delivery system comprising at least one skin care active and nanocellulose in a cosmetic composition , wherein the nanocellulose is present in amounts from about 0.001% to about 50% by the total weight of the composition.2. The delivery system of claim 1 , wherein the skin care active comprises a negative logP active or a positive logP active.3. The delivery system of claim 2 , wherein the negative logP active comprises one or more of: niacinamide claim 2 , kojic acid claim 2 , 3-o-ethyl-L-ascorbic acid claim 2 , zincidone (zinc salt of the L-pyrrolidone carboxylic acid) claim 2 , glucosamine claim 2 , allantoin (5-ureidohydantoin claim 2 , glyoxylic(acid) diureide) claim 2 , ascorbic acid 2-glucoside claim 2 , ascorbic acid claim 2 , lactic acid claim 2 , glycolic acid claim 2 , aspartic acid claim 2 , threonine claim 2 , glycine claim 2 , L-ornithine claim 2 , alanine claim 2 , lysine claim 2 , histidine claim 2 , cysteine claim 2 , valine claim 2 , methionine claim 2 , tyrosine claim 2 , isoleucine claim 2 , leucine claim 2 , phenylalanine claim 2 , tryptophan claim 2 , hyaluronic acid claim 2 , or sodium hyaluronate and the positive logP active comprises one or more of: caffeine claim 2 , retinol claim 2 , retinol derivatives claim 2 , cholesterol claim 2 , sterols claim 2 , vitamin E and derivatives claim 2 , benzophenone and chemical sunscreens claim 2 , or salicylic acid.4. The delivery system of claim 1 , wherein the cosmetic composition comprises one or more of: a DNA repair enzyme claim 1 , a sunscreen active claim 1 ...

Active clamp flyback converters

An active clamp flyback converter includes a transformer, a transistor, a first capacitor, and a second capacitor. The transformer includes a winding. The transistor includes a source terminal that is connected to a first terminal of the winding. The first capacitor includes a first terminal and a second terminal. The first terminal is connected to a drain terminal of the transistor. The second terminal is coupled to a second terminal of the winding. The second capacitor includes a first terminal that is connected to the second terminal of the winding, and is coupled to a second terminal of the first capacitor.

Fluid-to-powder compositions

The invention relates to fluid-to-powder cosmetic or pharmaceutical compositions for topical application to skin, the composition comprising at least one polyflurorinated solvent gelled with a fumed silica.

Novel color cosmetic compositions

The invention provides unique cosmetic compositions containing at least two different pigment types and a carrier, the pigments of different types being physically separated from each other in individual capsules within the carrier. Compositions of the invention provide vibrant color to the skin, but without the ashiness typical of compositions containing traditional pigment grinds.

Stable water-in-oil emulsion system

Disclosed is a stable water-in-oil emulsion system formed of an organopolysiloxane elastomer, a vehicle in which the elastomer is dispersed or dispersible, a stabilizing agent, a surfactant and an aqueous component and a process for forming the stable water-in-oil emulsion. The stabilized water-in-oil emulsion is useful in personal care products.

Sunscreens containing plant extracts

Moisturizing compositions for lip

A water in oil emulsion lip treatment composition comprising at least one non-polar silicone oil, at least one non-polar organic oil, at least one amphiphilic organic emollient oil, at least one water in oil surfactant; and at least one oil in water surfactant.

METHOD FOR DETERMINING THE POSITION AND DIRECTION OF A GUIDE TUBE IN A SURGICAL JIG AND DEVICE FOR IMPLEMENTING IT

METHOD FOR DETERMINING THE POSITION AND DIRECTION OF A GUIDE TUBE IN A SURGICAL JIG AND DEVICE FOR IMPLEMENTING IT

Une méthode pour la mise en place d'un tube guide dans un gabarit chirurgical dans la même direction que celle planifiée sur les coupes scannographiques. Cette méthode associe : a) la réalisation de coupes scannographiques du maxillaire (20) d'un patient muni d'un gabarit radiologique (21) avec b) un dispositif (1) permettant i) de placer des tiges radioopaques (27, 28) dans un gabarit radiologique de manière référencée et ii) de placer un tube guide de forage dans le gabarit chirurgical selon la direction implantaire désirée (24) en fonction des données résultant de l'analyse des coupes scannographiques du maxillaire muni du gabarit radiologique. A method for placing a guide tube in a surgical template in the same direction as that planned on the CT sections. This method combines: a) scans of the maxillary (20) of a patient with a radiographic template (21) with b) a device (1) for i) placing radiopaque rods (27, 28) in a radiographic template in a referenced manner and ii) placing a drill guide tube in the surgical template in the desired implant direction (24) according to the data resulting from the analysis of the maxillary scan sections provided with the X-ray template.

Method and device for the production of gas

Drive circuits for synchronous rectifiers

A method and system for providing synchronous rectification in power converters that includes controlling turnoff of a synchronous rectifier according to a timing signal representative of the switching time of a switch that is coupled to input of the power converter. Such a timing signal may be obtained directly or indirectly in various ways; for example, by sensing the voltage across the primary switch, or by sensing the drive voltage of the primary switch. Additional alternatives in an isolated converter having a transformer with a primary winding that is selectively coupled to the electrical power source includes sensing the primary winding voltage, for example, by directly sensing the primary voltage or by sensing the voltage across an auxiliary winding that is closely coupled to the primary winding.

Stable water-in-oil emulsion system

Disclosed is a stable water-in-oil emulsion system formed of an organopolysiloxane elastomer, a vehicle in which the elastomer is dispersed or dispersible, a stabilizing agent, a surfactant and an aqueous component and a process for forming the stable water-in-oil emulsion. The stabilized water-in-oil emulsion is useful in personal care products.

System and method for automatically analyzing phenotypical responses of cells

Dissolvable microneedles comprising one or more encapsulated cosmetic ingredients

An applicator for applying cosmetic agents into human skin, comprising: (a) a base, (b) a plurality of dissolvable microneedles fixed to said base and projecting therefrom a distance sufficient to penetrate into the skin, said microneedles being made of a material that is capable of disintegration and dispersion into the skin, (c) a cosmetic agent carried by said microneedles for delivery by said microneedles into the skin, and (d) wherein said dissolvable microneedles are configured as a dissolvable exterior shell and said shell encapsulates one or more cosmetic agents.

Pseudo current tracking for power supply regulation

In described examples, a power supply circuit (100) includes a regulation circuit (110) that receives an input voltage (VIN) and provides a regulated output voltage (VOUT) based on the input voltage (VIN). The regulation circuit (110) includes a switch device (120) having a switched output (122) that generates a ripple current waveform in a current regulator (124) to provide the regulated output voltage (VOUT). A control circuit (130) includes a pseudo current tracker (PCT) (134) that is operatively coupled to the regulation circuit (110). The PCT (134) receives a reference voltage (VREF) and generates a ripple voltage waveform that is proportional to the ripple current waveform. The control circuit (130) commands the switch device (120) to generate the ripple current waveform based on the ripple voltage waveform such that the regulated output voltage (VOUT) approximates the reference voltage (VREF).

Method and system for classifying and identifying individual cells in a microscopy image

Compositions comprising pigment particles entrapped in collapsed polymeric microspheres, and methods of making the same

Topical compositions containing pigment particles entrapped in microspheres are provided. Each of the microspheres contains a collapsed polymeric shell that has entrapped therein one or more pigment particles. The microsphere-entrapped pigment particles are characterized by enhanced color intensity, improved stability, and better dispersibility, which can readily be used either alone or in combination with other skin active ingredients to form better colored cosmetics.

System and method for indirect control of a converter output

One embodiment of the invention relates to a power apparatus. The power apparatus includes a power converter configured to convert an input voltage to an output voltage for providing power at an output thereof to which a load is connectable. The converter can include an isolation barrier configured to electrically isolate the output and the load from an input source that provides the input voltage. The system also includes a control loop that includes indirect sense circuitry configured to indirectly derive an indication of at least one of output current and output power of the converter. The control loop is configured to control output current or output power based on the indirectly derived indication of output current or output power, respectively.

Method and system for automatically estimating the spatial positions of cameras in a camera network

A method for automatically estimating the spatial positions between cameras in a camera network utilizes unique identifying signals, such as RFID signals, transmitting between nearby cameras to estimate the relative distances or positions between cameras from received signal strength (RSS), time of arrival (TOA), or time difference of arrival (TDOA) measurements to thereby determine the neighboring relationship among the cameras. A discover-locate process can be used to discover, from the estimated relative distances, unknown cameras in the vicinity of at least three cameras at known locations. Absolute locations of the discovered unknown cameras can then be calculated using a geometric calculation. The discover-locate process can be cascaded throughout the network to discover and locate all unknown cameras automatically using previously discovered and located cameras. Such methods can be implemented in systems having cameras with transceivers integrated therein and a controller operably linked to the cameras.

Novel color cosmetic compositions

Encapsulated dyes in cosmetic compositions

The invention relates to a topical composition for application to skin comprising a cosmetically or pharmaceutically acceptable encapsulated liquid UV-absorbing naphthopyran or naphthoxazine dye, or a combination thereof, in combination with a cosmetically or pharmaceutically acceptable carrier.