Point Cloud Meshing Method, Apparatus, Device and Computer Storage Media

A method, an apparatus, a device and a computer storage media for point cloud meshing are provided. The method includes performing a mesh reconstruction on point cloud data corresponding to a target object to obtain a reconstruction model for characterizing a surface contour of the target object; performing image registration on the reconstruction model with respect to a standard model corresponding to the target object; determining a mesh portion in the registered reconstruction model that does not overlap with the standard model; and removing the determined mesh portion from the registered reconstruction model to obtain a resulting reconstruction model of the target object. The point cloud meshing method repairs a hole structure of an object surface without the need of post-editing manually, and thus is able to improve the efficiency of repairing the hole structure of the object surface.

Wearable Brain Interface Systems Including a Headgear and a Plurality of Photodetector Units

An illustrative wearable brain interface system includes a headgear configured to be worn on a head of a user and a plurality of photodetector units configured to attach to the headgear, the photodetector units each housing a photodetector included in a plurality of photodetectors configured to be controlled by a master control unit to detect photons of light. 1. A wearable brain interface system comprising:a headgear configured to be worn on a head of a user; anda plurality of photodetector units configured to attach to the headgear, the photodetector units each housing a photodetector included in a plurality of photodetectors configured to be controlled by a master control unit to detect photons of light.2. The brain interface system of claim 1 , further comprising a light source configured to generate the light.3. The brain interface system of claim 2 , wherein the light source comprises an individual light source included in each of the photodetector units.4. The brain interface system of claim 2 , wherein the light source is included in the master control unit.5. The brain interface system of claim 1 , wherein:the headgear comprises a plurality of cutouts; andthe photodetector units are configured to fit within the cutouts.6. The brain interface system of claim 5 , wherein each cutout included in the plurality of cutouts is surrounded by a rigid ring embedded within the headgear and configured to facilitate attachment of the photodetector units to the headgear.7. The brain interface system of claim 1 , wherein:the headgear comprises a plurality of protrusions; andthe photodetector units are configured to attach to the protrusions.8. The brain interface system of claim 7 , wherein each protrusion comprises a rigid ring configured to facilitate attachment of the photodetector units to the headgear.9. The brain interface system of claim 1 , wherein the master control unit is coupled to each of the photodetector units by way of a plurality of wires claim 1 , ...

Phase lock loop circuit based signal generation in an optical measurement system

An exemplary system includes a PLL circuit and a precision timing circuit connected to the PLL circuit. The PLL circuit has a PLL feedback period defined by a reference clock and includes a voltage controlled oscillator configured to lock to the reference clock and having a plurality of stages configured to output a plurality of fine phase signals each having a different phase, and a feedback divider configured to be clocked by a single fine phase signal included in the plurality of fine phase signals and have a plurality of feedback divider states during the PLL feedback period. The precision timing circuit is configured to generate a timing pulse and set, based on a first combination of one of the fine phase signals and one of the feedback divider states, a temporal position of the timing pulse within the PLL feedback period.

Similar document detection and electronic discovery

Systems and methods are disclosed for performing duplicate document analyses to identify texturally identical or similar documents, which may be electronic documents stored within an electronic discovery platform. A process is described which includes representing each of the documents, including a target document, as a relatively large n-tuple vector and also as a relatively small m-tuple vector, performing a series of one-dimensional searches on the set of m-tuple vectors to identify a set of documents which are near-duplicates to the target document, and then filtering the near set of near duplicate documents based upon the distance of their n-tuple vectors from that of the target document.

Image processing method, apparatus, and storage medium

The present disclosure discloses an image processing method, apparatus, and a non-transitory computer readable medium. The method can includes: acquiring a three-dimensional (3D) model and original texture images of an object, wherein the original texture images are acquired by an imaging device; determining a mapping relationship between the 3D model and the original texture images of the object; determining, among the original texture images, a subset of texture images associated with a first perspective of the imaging device; splicing the subset of texture images into a spliced texture image corresponding to the first perspective; and mapping the spliced texture image to the 3D model according to the mapping relationship.

Maintaining Consistent Photodetector Sensitivity in an Optical Measurement System

An illustrative optical measurement system includes a light source configured to emit light directed at a target. The optical measurement system further includes a photodetector configured to detect a photon of the light after the light is scattered by the target. The optical measurement system further includes a control circuit configured to receive a first input voltage that is a temperature-dependent voltage. The control circuit is further configured to receive a second input voltage that is a temperature-invariant voltage. The control circuit is further configured to output, based on a combination of the first input voltage and the second input voltage, a bias voltage for the photodetector, wherein the combination of the first and second input voltages is configured to cause the bias voltage to vary based on temperature.

Bias Voltage Generation in an Optical Measurement System

An exemplary optical measurement system described herein includes a control circuit configured to output a global bias voltage and a module communicatively coupled to the control circuit. The module includes a light source configured to emit light directed at a target. The module further includes a plurality of detectors configured to detect arrival times for photons of the light after the light is scattered by the target. The module further includes a module control circuit configured to receive the global bias voltage and output a plurality of detector bias voltages based on the global bias voltage. The plurality of detector bias voltages include a respective detector bias voltage for each detector of the plurality of detectors. 1. An optical measurement system comprising:a control circuit configured to output a global bias voltage; and a light source configured to emit light directed at a target,', 'a plurality of detectors configured to detect arrival times for photons of the light after the light is scattered by the target, and', receive the global bias voltage, and', 'output a plurality of detector bias voltages based on the global bias voltage and including a respective detector bias voltage for each detector of the plurality of detectors., 'a module control circuit configured to], 'a module communicatively coupled to the control circuit, the module comprising2. The optical measurement system of claim 1 , wherein:the module control circuit is further configured to measure a respective optimal detector bias voltage for each detector of the plurality of detectors; andthe outputting the plurality of detector bias voltages is further based on the respective optimal detector bias voltage for each detector.3. The optical measurement system of claim 1 , wherein:the global bias voltage is a voltage level higher than the plurality of detector bias voltages; andthe outputting the plurality of detector bias voltages comprises stepping down the global bias voltage for ...

Photodetector Architectures for Efficient Fast-Gating

An exemplary system includes an array of photodetectors and a control system. Each photodetector of the array of photodetectors may include a single-photon avalanche diode (SPAD) and a fast-gating circuit configured to arm and disarm the SPAD. The control system is configured to control a current drawn by the array of photodetectors. 1. A system comprising: a single-photon avalanche diode (SPAD), and', 'a fast-gating circuit configured to arm and disarm the SPAD; and, 'an array of photodetectors comprising a first photodetector comprisinga control system for controlling a current drawn by the array of photodetectors.2. The system of claim 1 , wherein the control system comprises a plurality of switches connected in parallel to an anode or a cathode of the SPAD.3. The system of claim 2 , wherein:the fast-gating circuit comprises a gating transistor gated by a gating voltage, andeach switch of the plurality of switches is connected to a respective additional transistor gated by the gating voltage.4. The system of claim 2 , wherein the control system is configured to control the amount of current drawn by controlling the plurality of switches to control a slew rate of the fast-gating circuit.5. The system of claim 2 , wherein the control system further comprises a quenching transistor connected in parallel with the plurality of switches claim 2 , the quenching transistor configured to control an avalanche current drawn by the SPAD.6. The system of claim 1 , whereinthe control system comprises a plurality of switches connected in parallel between an anode or a cathode of the SPAD and a transistor configured to control a disarming of the SPAD; andthe control system is configured to control the amount of current drawn by controlling the plurality of switches to control a slew rate of the fast-gating circuit.7. The system of claim 1 , whereinthe control system comprises a plurality of voltage sources configured to gate a gating transistor of the fast-gating circuit; a ...

SYSTEM AND METHOD FOR LEARNING A RANKING MODEL THAT OPTIMIZES A RANKING EVALUATION METRIC FOR RANKING SEARCH RESULTS OF A SEARCH QUERY

An improved system and method for learning a ranking model that optimizes a ranking evaluation metric for ranking search results of a search query is provided. An optimized nDCG ranking model that optimizes an approximation of an average nDCG ranking evaluation metric may be generated from training data through an iterative boosting method for learning to more accurately rank a list of search results for a query. A combination of weak ranking classifiers may be iteratively learned that optimize an approximation of an average nDCG ranking evaluation metric for the training data by training a weak ranking classifier at each iteration for each document in the training data with a computed weight and assigned class label, and then updating the optimized nDCG ranking model by adding the weak ranking classifier with a combination weight to the optimized nDCG ranking model.

Photodetector architectures for time-correlated single photon counting

An exemplary photodetector system includes a plurality of photodetectors connected in parallel and a processor communicatively coupled to the plurality of photodetectors. The processor is configured to receive an accumulated output from the plurality of photodetectors. The accumulated output represents an accumulation of respective outputs from each of the plurality of photodetectors detecting photons during a predetermined measurement time period that occurs in response to a light pulse being directed toward a target within a body. The processor is further configured to determine, based on the accumulated output, a temporal distribution of photons detected by the plurality of photodetectors, and generate, based on the temporal distribution of photons, a histogram representing a light pulse response of the target within the body.

Compensation for Delays in an Optical Measurement System

An exemplary system includes a first photodetector configured to detect a first photon via a first path from a light source and a second photodetector configured to detect a second photon via a second path. The system includes a control system configured to record a first time based on the first photodetector detecting the first photon, the first time including a delay between the first photodetector detecting the first photon and the control system receiving a photodetector output pulse from the first photodetector. The control system is configured to record a second time based on the second photodetector detecting the second photon, the second time including a delay between the second photodetector and the control system. The control system is configured to determine, based on the first and second time, an amount of time for the second photon to travel from the light source to the second photodetector.

Phase Lock Loop Circuit Based Signal Generation in an Optical Measurement System

An exemplary system includes a PLL circuit and a precision timing circuit connected to the PLL circuit. The PLL circuit has a PLL feedback period defined by a reference clock and includes a voltage controlled oscillator configured to lock to the reference clock and having a plurality of stages configured to output a plurality of fine phase signals each having a different phase, and a feedback divider configured to be clocked by a single fine phase signal included in the plurality of fine phase signals and have a plurality of feedback divider states during the PLL feedback period. The precision timing circuit is configured to generate a timing pulse and set, based on a first combination of one of the fine phase signals and one of the feedback divider states, a temporal position of the timing pulse within the PLL feedback period.

Wearable brain interface systems including a headgear and a plurality of photodetector units

An exemplary wearable brain interface system includes a headgear configured to be worn on a head of a user, a plurality of photodetector units configured to attach to the headgear, and a master control unit coupled to each of the photodetector units and configured to control the photodetector units by directing a photodetector of each photodetector unit to detect photons of light.

ANALOG-TO-DIGITAL CONVERTER REUSING COMPARATOR FOR RESIDUE AMPLIFIER FOR NOISE SHAPING

Some or all of a comparator circuit of an analog-to-digital converter (ADC) circuit can be efficiently repurposed or reused for residue amplification for efficient noise-shaping, e.g., in a noise-shaping feedback configuration. A preamplifier portion of a comparator circuit in an oversampling ADC can be re-purposed to provide an amplifier to amplify or otherwise modify a residue left after the bit trials of a conversion cycle. The amplified or modified residue can then be used elsewhere, for example, for noise-shaping by applying a noise transfer function (NTF), a result of which can then be fed back (e.g., summed with the next sampled input at an input of the comparator circuit for use in the N bit trials of the next ADC cycle). 1. An analog-to-digital converter (ADC) circuit comprising:a digital-to-analog converter (DAC) circuit to receive a sampled input signal;a comparator circuit having first and second inputs, the first input coupled to an output of the DAC circuit and configured to compare the output of the DAC circuit at the first input to a voltage at the second input;a noise-shaping feedback circuit coupled to an input of the comparator circuit; anda control circuit coupled to the output of the comparator circuit and an input of the DAC circuit,wherein, after a conversion phase and before an acquisition phase, the control circuit reconfigures the comparator circuit to operate as an amplifier circuit to process a quantization error at the DAC circuit after all bit trials of the sampled input signal and apply the processed quantization error to the noise-shaping feedback circuit coupled to an input of the ADC circuit.2. The ADC circuit of claim 1 , wherein the comparator circuit includes the amplifier circuit coupled to a latch circuit claim 1 , and a primary capacitor switchably coupled to an input of the latch circuit claim 1 , andwherein the control circuit that reconfigures the comparator circuit as an amplifier circuit is configured to: amplify a ...

Phase lock loop circuit based signal generation in an optical measurement system

An exemplary system includes a PLL circuit and a precision timing circuit connected to the PLL circuit. The PLL circuit has a PLL feedback period defined by a reference clock and includes a voltage controlled oscillator configured to lock to the reference clock and having a plurality of stages configured to output a plurality of fine phase signals each having a different phase, and a feedback divider configured to be clocked by a single fine phase signal included in the plurality of fine phase signals and have a plurality of feedback divider states during the PLL feedback period. The precision timing circuit is configured to generate a timing pulse and set, based on a first combination of one of the fine phase signals and one of the feedback divider states, a temporal position of the timing pulse within the PLL feedback period.

Photodetector Systems with Low-Power Time-to-Digital Converter Architectures to Determine an Arrival Time of Photon at a Photodetector Based on Event Detection Time Window

An illustrative wearable system includes a head-mountable component configured to be worn on a head of a user and a processor. The head-mountable component includes a time-to-digital converter (TDC) configured to receive, during a predetermined event detection time window that commences in response to an application of a light pulse to a target, a signal triggered by an event in which a photodetector detects a photon of the light pulse after the light pulse reflects from the target, the signal configured to enable a GRO of the TDC. The TDC is further configured to measure, using the GRO, a time interval between when the event occurred and an end of the predetermined event detection time window. The processor is configured to determine, based on the time interval and the predetermined event detection time window, an arrival time of the photon at the photodetector. 1. A wearable system for use by a user , comprising: receive, during a predetermined event detection time window that commences in response to an application of a light pulse to a target, a signal triggered by an event in which a photodetector detects a photon of the light pulse after the light pulse reflects from the target, the signal configured to enable a gated ring oscillator (GRO) of the TDC; and', 'measure, using the GRO, a time interval between when the event occurred and an end of the predetermined event detection time window; and, 'a head-mountable component configured to be worn on a head of the user, the head-mountable component comprising a time-to-digital converter (TDC) configured toa processor configured to determine, based on the time interval and the predetermined event detection time window, an arrival time of the photon at the photodetector.2. The wearable system of claim 1 , wherein the signal is further configured to:enable the GRO of the TDC while the signal is being received by the TDC; anddisable the GRO of the TDC upon a stopping of the signal.3. The wearable system of claim 1 , ...

Preparation method for silver nanowires with uniform aspect ratio and nodes

A preparation method for silver nanowires, including: dissolving a dispersant in a tribasic alcohol to get a viscous clear solution, dissolving the silver nitrate in a tribasic alcohol to get a clear solution; then, adding the silver nitrate solution to the dispersant solution for uniform mixing, finally, transferring the mixed solution into a reaction kettle, putting into an oven with a set temperature (170˜200° C.), and ending the reaction after a period of time. The mother solution of silver nanowires is diluted with alcohol and then centrifuged to separate organics, the novel silver nanowires with a uniform aspect ratio and nodes are obtained.

HYDROGELS BASED ON POLYMERS OF DEXTRAN TYRAMINE AND TYRAMINE CONJUGATES OF NATURAL POLYMERS

The invention relates to composition comprising a dextran-tyramine conjugate and a conjugate selected from the group consisting of chondroitin sulphate-tyramine, collagen-tyramine, chitosan-tyramine, chitosan-phloretic acid, gelatine-tyramine, heparan sulphate-tyramine, keratin sulphate-tyramine, hyaluronic acid-tyramine and heparin-tyramine. 1. A composition comprising a dextran-tyramine conjugate and a conjugate selected from the group consisting of chondroitin sulphate-tyramine , collagen-tyramine , chitosan-tyramine , chitosan-phloretic acid , gelatine-tyramine , heparan sulphate-tyramine , keratin sulphate-tyramine , hyaluronic acid-tyramine and heparin-tyramine.2. A composition according to claim 1 , wherein said composition comprises a heparin-tyramine (Hep-TA) conjugate and a dextran-tyramine conjugate (Dex-TA).3. A composition according to claim 2 , wherein Dex-TA and Hep-TA are present in a weight ratio between 95:5 and 5:95 claim 2 , preferably between 75:25 and 25:75.4. A composition according to claim 1 , further comprising a suitable amount of hydrogen peroxide and suitable amount of a peroxidase.5. A composition according to claim according to claim 1 , wherein the amount of the heparin-tyramine (Hep-TA) conjugate of the composition is between 10 and 20 wt % based on the weight of the composition.6. A composition according to claim 4 , wherein the concentration of peroxidase is between 10-125 Units/ml.7. A composition according to claim 4 , wherein the concentration of hydrogen peroxide is between 0.005 and 0.05 M.8. A composition according to in the form of an injectable hydrogel.9. A composition according to further comprising cells claim 1 , preferably stem cells and or chondrocytes claim 1 , wherein said stem cells are more preferably mesenchymal stem cells claim 1 , embryonic stem cells or pluripotent stem cells or a combination of different stem cells.10. A composition according to further comprising a growth factor claim 1 , preferably a Bone ...

Slurry shield stone-crushing device

The invention discloses a slurry shield stone-crushing device. The slurry shield stone-crushing device comprises an integral stone crusher arranged in an anterior shield slurry warehouse, wherein a front grid and a rear grid are respectively on the two sides and at the back of the integral stone crusher to form a stone crushing region corresponding to a mud dredge pipe inside the anterior shield slurry warehouse; the integral stone crusher comprises jaw plate assemblies, a stone crusher housing and a hydraulic cylinder, wherein the two groups of jaw plate assemblies are symmetrically hinged on the stone crusher housing; and each jaw plate assembly is connected with the stone crusher housing by the hydraulic cylinder. The slurry shield stone-crushing device adopts the integral stone crusher, can be debugged independently and can be directly welded with the anterior shield housing after being debugged, thereby improving the installing and debugging efficiency; the front grid and the rear ...

Analog-to-digital converter reusing comparator for residue amplifier for noise shaping

Some or all of a comparator circuit of an analog-to-digital converter (ADC) circuit can be efficiently repurposed or reused for residue amplification for efficient noise-shaping, e.g., in a noise-shaping feedback configuration. A preamplifier portion of a comparator circuit in an oversampling ADC can be re-purposed to provide an amplifier to amplify or otherwise modify a residue left after the bit trials of a conversion cycle. The amplified or modified residue can then be used elsewhere, for example, for noise-shaping by applying a noise transfer function (NTF), a result of which can then be fed back (e.g., summed with the next sampled input at an input of the comparator circuit for use in the N bit trials of the next ADC cycle).

Wearable systems with fast-gated photodetector architectures having a single photon avalanche diode and capacitor

A wearable system for use by a user includes a photodetector configured to detect a photon of a light pulse after the photon reflects from a target internal to the user. The photodetector includes a single photon avalanche diode (SPAD) and a capacitor configured to be charged, while the SPAD is in a disarmed state, with a bias voltage by a voltage source, and supply, when the SPAD is put in an armed state, the bias voltage to an output node of the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD.

Phase Lock Loop Circuit Based Adjustment of a Measurement Time Window in an Optical Measurement System

An exemplary system includes a photodetector configured to generate a photodetector output pulse when the photodetector detects a photon from a light pulse having a light pulse time period, a TDC configured to monitor for the occurrence of the photodetector output pulse during a measurement time window that is within and shorter in duration than the light pulse time period, a PLL circuit for the TDC, and a precision timing circuit connected to the PLL circuit and configured to adjust, based on at least one signal generated within the PLL circuit, a temporal position of the measurement time window within the light pulse time period.

Neural network computing

A method including receiving, by a processor, a computing instruction for a neural network, wherein the computing instruction for the neural network includes a computing rule for the neural network and a connection weight of the neural network, and the connection weight is a power of 2; and inputting, for a multiplication operation in the computing rule for the neural network, a source operand corresponding to the multiplication operation to a shift register, and performing a shift operation based on a connection weight corresponding to the multiplication operation, wherein the shift register outputs a target result operand as a result of the multiplication operation. The neural network uses a shift operation, and a neural network computing speed is increased.

MOBILE TERMINAL AND SHOOTING METHOD THEREOF

Disclosed are a mobile terminal and a shooting method thereof. The shooting method comprises the steps of: collecting, by a camera, image data continuously; conducting an addition operation on the current image data and the past image data, so as to generate a synthetic image; and displaying the synthetic image in real time. Thus, an image superposition technique is adopted to simulate long-time exposure, which adds a light painting function to a mobile terminal, so that a user can use the light painting function of the mobile terminal to conduct artistic creation, and can preview the creation effect in real time, thereby improving the user experience. 1. A shooting method for a mobile terminal , comprising steps of:continuously collecting, by a camera, image data;reading the image data at time intervals, selecting pixels meeting a preset condition from current image data and previous image data, performing addition operation on the pixels at the same position, and generating a synthetic image; anddisplaying the synthetic image.2. A shooting method for a mobile terminal , comprising steps of:continuously collecting, by a camera, image data;reading the image data at time intervals, performing addition operation on current image data and previous image data, and generating a synthetic image; anddisplaying the synthetic image.3. The shooting method according to claim 2 , wherein the step of performing addition operation on the current image data and the previous image data comprises:selecting, pixels meeting a preset condition, from the current image data and the previous image data, and performing addition operation on the pixels at the same position.4. The shooting method according to claim 3 , wherein the step of selecting the pixels meeting the preset condition comprises:judging whether a luminance parameter of the pixel is more than its threshold value or not; andon the condition that the luminance parameter of the pixel is more than its threshold value, ...

Wearable brain interface systems including a headgear and a plurality of photodetector units each housing a photodetector configured to be controlled by a master control unit

An illustrative wearable brain interface system includes a headgear configured to be worn on a head of a user and a plurality of photodetector units configured to attach to the headgear, the photodetector units each housing a photodetector included in a plurality of photodetectors configured to be controlled by a master control unit to detect photons of light.

Winch transportation system used in deviated-well tunnel

The invention provides a winch transportation system used in a deviated-well tunnel. The winch transportation system used in the deviated-well tunnel comprises a guide rail provided with cross beams, a transportation unit, a brake device and a reversing mechanism. The transportation unit comprises a winch trolley which can move along the guide rail and a winch which can control displacement of the winch trolley through a pull piece. The brake device comprises a brake cylinder and a brake bar, wherein the brake cylinder is arranged on the winch trolley and is provided with a closed top end, the brake bar is connected with the pull piece and can make reciprocating motion in the brake cylinder, the brake bar comprises a limiting portion which is formed on the brake bar in an integrated mode in the radial direction, and an elastic piece is arranged between the limiting portion and the closed top end. The reversing mechanism comprises a support arranged on the winch trolley and a reversing unit ...

Photodetector Systems with Low-Power Time-to-Digital Converter Architectures to Determine an Arrival Time of Photon at a Photodetector Based on Event Detection Time Window

An illustrative system may include a component configured to be worn on a body of a user, the component comprising a time-to-digital converter (TDC) configured to: receive, during a predetermined event detection time window that commences in response to an application of a light pulse to a target within the body, a signal triggered by an event in which a photodetector detects a photon of the light pulse after the light pulse reflects from the target; and measure, based on the receiving the signal, a time interval between when the event occurred and an end of the predetermined event detection time window. The system may further include a processor configured to determine, based on the time interval and the predetermined event detection time window, an arrival time of the photon at the photodetector.

SIMILAR DOCUMENT DETECTION AND ELECTRONIC DISCOVERY

Systems and methods are disclosed for performing duplicate document analyses to identify texturally identical or similar documents, which may be electronic documents stored within an electronic discovery platform. A process is described which includes representing each of the documents, including a target document, as a relatively large n-tuple vector and also as a relatively small m-tuple vector, performing a series of calculations on the set of m-tuple vectors to identify a set of documents which are candidate near-duplicates to the target document, and then filtering the candidate set of near-duplicate documents based upon the distance of their n-tuple vectors from the n-tuple vector of the target document. 1. A non-transitory storage medium having stored instructions which , when executed by a processor , cause the processor to perform actions with regard to a dataset having a plurality of dataset elements and which is operably accessible to the processor , each of the dataset elements corresponding to a different document and each of the documents having one or more characteristics , the actions comprising:creating an n-tuple feature vector for each dataset element of the plurality of dataset elements, wherein each component of the n-tuple feature vector correlates to a specific characteristic of the corresponding dataset element;creating an m-tuple search vector for each dataset element, wherein m is less than n, and wherein each of the m-tuple search vectors includes as its components (a) the norm of its corresponding n-tuple feature vector, (b) the component sum of its corresponding n-tuple feature vector, and (c) a set of random projections of its corresponding n-tuple feature vector;selecting one of the dataset elements of the plurality of dataset elements to be a target dataset element;for each dataset element of a selected number of the plurality of dataset elements, determining a corresponding distance between its corresponding m-tuple search vector and ...

Temporal resolution control for temporal point spread function generation in an optical measurement system

An exemplary system includes a photodetector configured to generate a plurality of photodetector output pulses over time as a plurality of light pulses are applied to and scattered by a target, a TPSF generation circuit configured to generate, based on the photodetector output pulses, a TPSF representative of a light pulse response of the target, and a control circuit configured to direct the TPSF generation circuit to selectively operate in different resolution modes.

Photodetector architectures for efficient fast-gating comprising a control system controlling a current drawn by an array of photodetectors with a single photon avalanche diode

An exemplary system includes an array of photodetectors and a control system. Each photodetector of the array of photodetectors may include a single-photon avalanche diode (SPAD) and a fast-gating circuit configured to arm and disarm the SPAD. The control system is configured to control a current drawn by the array of photodetectors.

Photodetector Architectures for Time-Correlated Single Photon Counting

An exemplary photodetector system includes a plurality of photodetectors connected in parallel and a processor communicatively coupled to the plurality of photodetectors. The processor is configured to receive an accumulated output from the plurality of photodetectors. The accumulated output represents an accumulation of respective outputs from each of the plurality of photodetectors detecting photons during a predetermined measurement time period that occurs in response to a light pulse being directed toward a target within a body. The processor is further configured to determine, based on the accumulated output, a temporal distribution of photons detected by the plurality of photodetectors, and generate, based on the temporal distribution of photons, a histogram representing a light pulse response of the target within the body. 1. A system comprising:a plurality of photodetectors connected in parallel; receive an accumulated output from the plurality of photodetectors, the accumulated output representing an accumulation of respective outputs from each of the plurality of photodetectors detecting photons during a predetermined measurement time period that occurs in response to a light pulse being directed toward a target within a body;', 'determine, based on the accumulated output, a temporal distribution of photons detected by the plurality of photodetectors; and', 'generate, based on the temporal distribution of photons, a histogram representing a light pulse response of the target within the body., 'a processor communicatively coupled to the plurality of photodetectors and configured to2. The system of claim 1 , wherein the processor is further configured to:reset the plurality of photodetectors subsequent to the predetermined measurement time period;receive an additional accumulated output from the plurality of photodetectors, the additional accumulated output representing an additional accumulation of respective outputs from each of the plurality of ...

Wearable brain interface system comprising a head-mountable component and a control system

An exemplary wearable brain interface system includes a head-mountable component and a control system. The head-mountable component includes an array of photodetectors that includes a photodetector comprising a single-photon avalanche diode (SPAD) and a fast-gating circuit configured to arm and disarm the SPAD. The control system is for controlling a current drawn by the array of photodetectors.

COMBINED COUNTERWEIGHT HITCHING DEVICE AND METHOD THEREOF, AND COUNTERWEIGHT MOUNTING STRUCTURE

The present invention relates to a combined counterweight hitching device and method thereof, and a counterweight mounting structure. The combined counterweight hitching device is mounted on a turntable tail framework, wherein the combined counterweight hitching device includes a turntable tail framework bottom plate, a lifting oil cylinder, a lifting oil cylinder fixing seat and a hitching driving mechanism, the turntable tail framework bottom plate is fixed on the turntable tail framework, the lifting oil cylinder fixing seat is arranged on the upper surface of the turntable tail framework bottom plate and is hinged with the turntable tail framework bottom plate, the lifting oil cylinder is fixed at one end of the lifting oil cylinder fixing seat, the one end distal to a point on which the turntable tail framework bottom plate is hinged with the lifting oil cylinder fixing seat, a hitching platform is mounted at a piston rod end of the lifting oil cylinder, and the hitching driving mechanism is connected with the lifting oil cylinder fixing seat, and drives the lifting oil cylinder fixing seat to make the hitching platform enter a hitching platform groove on the counterweight to complete a hitching operation. By adopting the combined counterweight hitching device and method, and the counterweight mounting structure provided by the present invention, the mounting and demounting of the combined counterweight are more convenient, and the mounting space is smaller. 1. A combined counterweight hitching device mounted on a turntable tail framework , wherein the combined counterweight hitching device comprises a turntable tail framework bottom plate , a lifting oil cylinder , a lifting oil cylinder fixing seat and a hitching driving mechanism , the turntable tail framework bottom plate is fixed on the turntable tail framework , the lifting oil cylinder fixing seat is arranged on an upper surface of the turntable tail framework bottom plate and is hinged with the ...

SIMILAR DOCUMENT DETECTION AND ELECTRONIC DISCOVERY

Systems and methods are disclosed for performing duplicate document analyses to identify texturally identical or similar documents, which may be electronic documents stored within an electronic discovery platform. A process is described which includes representing each of the documents, including a target document, as a relatively large n-tuple vector and also as a relatively small m-tuple vector, performing a series of one-dimensional searches on the set of m-tuple vectors to identify a set of documents which are near-duplicates to the target document, and then filtering the near set of near duplicate documents based upon the distance of their n-tuple vectors from that of the target document. 1. A storage medium having stored instructions which , when executed by a processor , cause the processor to perform actions with regard to a first dataset having a plurality of first dataset elements and which is operably accessible to the processor , each of the first dataset elements corresponding to a different document and each of the documents having one or more characteristics , the actions comprising:creating a n-tuple vector for each of a selected number of the first dataset element of the plurality of first dataset elements wherein each component of the n-tuple vector correlates to a characteristic of the relevant first dataset element;creating an m-tuple vector for each of two or more of the n-tuple vectors, wherein each of the m-tuple vectors includes as its components (a) the norm of its corresponding n-tuple vector, (b) the component sum of its corresponding n-tuple vector, and (c) a set of random projections of its corresponding n-tuple vector;selecting one of the dataset elements to be a target;selecting the m-tuple vector which corresponds to the target and at least one other of the m-tuple vectors as elements of a first candidate set;bisectionally performing a series of one-dimensional range searches starting with the first candidate set to create a second ...

Phase Lock Loop Circuit Based Signal Generation in an Optical Measurement System

An exemplary system includes a PLL circuit and a precision timing circuit connected to the PLL circuit. The PLL circuit has a PLL feedback period defined by a reference clock and includes a voltage controlled oscillator configured to lock to the reference clock and having a plurality of stages configured to output a plurality of fine phase signals each having a different phase, and a feedback divider configured to be clocked by a single fine phase signal included in the plurality of fine phase signals and have a plurality of feedback divider states during the PLL feedback period. The precision timing circuit is configured to generate a timing pulse and set, based on a first combination of one of the fine phase signals and one of the feedback divider states, a temporal position of the timing pulse within the PLL feedback period. 1. A system comprising: a voltage controlled oscillator configured to lock to the reference clock and having a plurality of stages configured to output a plurality of fine phase signals each having a different phase, and', 'a feedback divider configured to be clocked by a single fine phase signal included in the plurality of fine phase signals and have a plurality of feedback divider states during the PLL feedback period; and, 'a phase lock loop (PLL) circuit having a PLL feedback period defined by a reference clock and comprising generate a timing pulse, and', 'set, based on a first combination of one of the fine phase signals and one of the feedback divider states, a temporal position of the timing pulse within the PLL feedback period., 'a precision timing circuit connected to the PLL circuit and configured to'}2. The system of claim 1 , wherein the precision timing circuit is further configured to:generate an additional timing pulse, andset, based on a second combination of one of the fine phase signals and one of the feedback divider states, a temporal position of the additional timing pulse within the PLL feedback period, the second ...

Pipe-segment quick-unloading device for slope tunnel borer

The invention discloses a pipe-segment quick-unloading device for a slope tunnel borer. The pipe-segment quick-unloading device is characterized by comprising a rear supporting trolley for a tunnel borer and a lifting unloader arranged on a rear supporting trolley; the rear supporting trolley comprises two bodies which are arranged in parallel at intervals and rigidly connected by a bracket; and the unloader is correspondingly arranged at the inner side of the interval on the two bodies. The pipe-segment quick-unloading device is an important part of a pipe-segment back-transporting system and can quickly unload the pipe-segment within a limited tunnel operating space, thereby improving the working efficiency of the pipe-segment back-transporting system and ensuring the construction progress and the efficiency of the slope tunnel borer process.

Wearable Systems with Fast-Gated Photodetector Architectures

A wearable system for use by a user includes a photodetector configured to detect a photon of a light pulse after the photon reflects from a target internal to the user. The photodetector includes a single photon avalanche diode (SPAD) and a capacitor configured to be charged, while the SPAD is in a disarmed state, with a bias voltage by a voltage source, and supply, when the SPAD is put in an armed state, the bias voltage to an output node of the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD. 1. A wearable system for use by a user , comprising: a single photon avalanche diode (SPAD); and', be charged, while the SPAD is in a disarmed state, with a bias voltage by a voltage source, and', 'supply, when the SPAD is put in an armed state, the bias voltage to an output node of the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD., 'a capacitor configured to'}], 'a photodetector configured to detect a photon of a light pulse after the photon reflects from a target internal to the user, the photodetector comprising'}2. The wearable system of claim 1 , further comprising a light source configured to generate the light pulse.3. The wearable system of claim 1 , further comprising a head-mountable component configured to be attached to a head of the user claim 1 , the head-mountable component including the photodetector.4. The wearable system of claim 1 , wherein the wearable system is implemented by in a non-invasive wearable brain interface system.5. The wearable system of claim 1 , further comprising an enclosure configured to be implanted within the user claim 1 , the enclosure including the photodetector.6. The wearable system of claim 5 , wherein the enclosure is part of an implantable medical device configured for at least one of brain recording and brain imaging.7. The wearable system of claim 1 , further comprising a wearable battery configured to provide power to the photodetector.8. ...

Maintaining Consistent Photodetector Sensitivity in an Optical Measurement System

An exemplary optical measurement system includes a light source configured to emit light directed at a target. The optical measurement system further includes a photodetector configured to detect a photon of the light after the light is scattered by the target. The optical measurement system further includes a control circuit configured to receive a first input voltage that is a temperature-dependent voltage. The control circuit is further configured to receive a second input voltage that is a temperature-invariant voltage. The control circuit is further configured to output, based on a combination of the first input voltage and the second input voltage, a bias voltage for the photodetector, wherein the combination of the first and second input voltages is configured to cause the bias voltage to vary based on temperature.

Stacked photodetector assemblies

An exemplary stacked photodetector assembly includes a first wafer and a second wafer bonded to the first wafer. The first wafer includes a SPAD and has a thickness T1 configured to minimize absorption by the first wafer of photons included in light incident upon the first wafer while the SPAD is in a disarmed state. The second wafer has a thickness T2 configured to provide structural support for the first wafer. The stacked photodetector assembly includes a fast gating circuit electrically coupled to the SPAD and configured to arm and disarm the SPAD.

Combined counterweight hitching device and method thereof, and counterweight mounting structure

The present invention relates to a combined counterweight hitching device and method thereof, and a counterweight mounting structure. The combined counterweight hitching device is mounted on a turntable tail framework, wherein the combined counterweight hitching device includes a turntable tail framework bottom plate, a lifting oil cylinder, a lifting oil cylinder fixing seat and a hitching driving mechanism, the turntable tail framework bottom plate is fixed on the turntable tail framework, the lifting oil cylinder fixing seat is arranged on the upper surface of the turntable tail framework bottom plate and is hinged with the turntable tail framework bottom plate, the lifting oil cylinder is fixed at one end of the lifting oil cylinder fixing seat, the one end distal to a point on which the turntable tail framework bottom plate is hinged with the lifting oil cylinder fixing seat, a hitching platform is mounted at a piston rod end of the lifting oil cylinder, and the hitching driving mechanism ...

Stacked Photodetector Assemblies

An exemplary stacked photodetector assembly includes a first wafer and a second wafer bonded to the first wafer. The first wafer includes a SPAD and has a thickness T configured to minimize absorption by the first wafer of photons included in light incident upon the first wafer while the SPAD is in a disarmed state. The second wafer has a thickness T configured to provide structural support for the first wafer. The stacked photodetector assembly includes a fast gating circuit electrically coupled to the SPAD and configured to arm and disarm the SPAD. 1. A stacked photodetector assembly comprising:{'b': '1', 'a first wafer including a single photon avalanche diode (SPAD), the first wafer having a thickness T configured to minimize absorption by the first wafer of photons included in light incident upon the first wafer while the SPAD is in a disarmed state; and'}{'b': '2', 'a second wafer having a thickness T including a fast gating circuit electrically coupled to the SPAD and configured to arm and disarm the SPAD, the second wafer bonded to the first wafer in a stacked configuration;'} be charged, while the SPAD is in the disarmed state, with a bias voltage by a voltage source, and', 'supply, while the SPAD is in an armed state, the bias voltage to the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD., 'wherein the fast gating circuit includes a capacitor configured to2. The stacked photodetector assembly of claim 1 , wherein the light comprises near infrared light.31. The stacked photodetector assembly of claim 1 , wherein the thickness T of the first wafer is less than 10 microns.42. The stacked photodetector assembly of claim 1 , wherein the thickness T of the second wafer is greater than 250 microns to provide structural support for the first wafer.5. The stacked photodetector assembly of claim 1 , wherein the fast gating circuit is electrically isolated from the SPAD.6. The stacked photodetector assembly of claim 1 , ...

Photodetector Architectures for Efficient Fast-Gating

An exemplary wearable brain interface system includes a head-mountable component and a control system. The head-mountable component includes an array of photodetectors that includes a photodetector comprising a single-photon avalanche diode (SPAD) and a fast-gating circuit configured to arm and disarm the SPAD. The control system is for controlling a current drawn by the array of photodetectors. 1. A wearable brain interface system comprising: a single-photon avalanche diode (SPAD), and', 'a fast-gating circuit configured to arm and disarm the SPAD; and, 'a head-mountable component comprising an array of photodetectors that includes a photodetector comprisinga control system for controlling a current drawn by the array of photodetectors.2. The wearable brain interface system of claim 1 , wherein the control system comprises a plurality of switches connected in parallel to an anode or a cathode of the SPAD.3. The wearable brain interface system of claim 2 , wherein:the fast-gating circuit comprises a gating transistor gated by a gating voltage, andeach switch of the plurality of switches is connected to a respective additional transistor gated by the gating voltage.4. The wearable brain interface system of claim 2 , wherein the control system is configured to control the current drawn by controlling the plurality of switches to control a slew rate of the fast-gating circuit.5. The wearable brain interface system of claim 2 , wherein the control system further comprises a quenching transistor connected in parallel with the plurality of switches claim 2 , the quenching transistor configured to control an avalanche current drawn by the SPAD.6. The wearable brain interface system of claim 1 , whereinthe control system comprises a plurality of switches connected in parallel between an anode or a cathode of the SPAD and a transistor configured to control a disarming of the SPAD; andthe control system is configured to control the current drawn by controlling the plurality ...

Wearable Brain Interface Systems Including a Headgear and a Plurality of Photodetector Units

An exemplary wearable brain interface system includes a headgear configured to be worn on a head of a user, a plurality of photodetector units configured to attach to the headgear, and a master control unit coupled to each of the photodetector units and configured to control the photodetector units by directing a photodetector of each photodetector unit to detect photons of light. 1. A wearable brain interface system comprising:a headgear configured to be worn on a head of a user;a plurality of photodetector units configured to attach to the headgear; anda master control unit coupled to each of the photodetector units and configured to control the photodetector units by directing a photodetector of each photodetector unit to detect photons of light.2. The brain interface system of claim 1 , further comprising a light source configured to generate the light.3. The brain interface system of claim 2 , wherein the light source comprises an individual light source included in each of the photodetector units.4. The brain interface system of claim 2 , wherein the light source is included in the master control unit.5. The brain interface system of claim 1 , wherein:the headgear comprises a plurality of cutouts; andthe photodetector units are configured to fit within the cutouts.6. The brain interface system of claim 5 , wherein each cutout included in the plurality of cutouts is surrounded by a rigid ring embedded within the headgear and configured to facilitate attachment of the photodetector units to the headgear.7. The brain interface system of claim 1 , wherein:the headgear comprises a plurality of protrusions; andthe photodetector units are configured to attach to the protrusions.8. The brain interface system of claim 7 , wherein each protrusion comprises a rigid ring configured to facilitate attachment of the photodetector units to the headgear.9. The brain interface system of claim 1 , wherein the master control unit is coupled to each of the photodetector units by ...

Mobile terminal and shooting method thereof

Disclosed are a mobile terminal and a shooting method thereof. The shooting method comprises the steps of: collecting, by a camera, image data continuously; conducting an addition operation on the current image data and the past image data, so as to generate a synthetic image; and displaying the synthetic image in real time. Thus, an image superposition technique is adopted to simulate long-time exposure, which adds a light painting function to a mobile terminal, so that a user can use the light painting function of the mobile terminal to conduct artistic creation, and can preview the creation effect in real time, thereby improving the user experience.

Maintaining consistent photodetector sensitivity in an optical measurement system

An exemplary optical measurement system includes a light source configured to emit light directed at a target. The optical measurement system further includes a photodetector configured to detect a photon of the light after the light is scattered by the target. The optical measurement system further includes a control circuit configured to receive a first input voltage that is a temperature-dependent voltage. The control circuit is further configured to receive a second input voltage that is a temperature-invariant voltage. The control circuit is further configured to output, based on a combination of the first input voltage and the second input voltage, a bias voltage for the photodetector, wherein the combination of the first and second input voltages is configured to cause the bias voltage to vary based on temperature.

DEXTRAN-HYALURONIC ACID BASED HYDROGELS

The invention provides a copolymer of hyaluronic acid (HA) grafted with a dextran-tyramine (Dex-TA) conjugate. 1. A copolymer of hyaluronic acid (HA) grafted with a dextran-tyramine (Dex-TA) conjugate.2. A copolymer according to claim 1 , wherein said dextran-tyramine conjugate has a degree of substitution (DS) claim 1 , defined as the number of conjugated tyramine moieties per 100 anhydroglucose rings between 5 and 25.3. A copolymer according to claim 1 , wherein the dextran chain in said dextran-tyramine conjugate has an average molecular weight between 5 and 80 kDa.4. A copolymer according to for use as a medicament.5. A copolymer according to for use as a medicament for the treatment of a subject in need of an implant.6. A method for preparing a copolymer according to claim 1 , comprising steps ofa) modifying a dextran-tyramine conjugate at the reducing terminal glucose residue with an excess of N-Boc-1,4-diaminobutane;b) subjecting said modified dextran-tyramine conjugate to reductive amination using sodium cyanoborohydride;{'sub': '2', 'c) deprotecting the Boc group using trifluoroacetic acid to obtain a conjugate with a terminal free primary amine group (denoted as Dex-TA-NH).'}7. A composition comprising a copolymer according to with a suitable amount of hydrogen peroxide and suitable amount of a peroxidase.8. A composition according to claim 7 , wherein the amount of said copolymer is between 5 and 30 wt %.9. A composition according to claim 7 , wherein the amount of peroxidase is between 0.1 and 10 Units/ml.10. A composition according to claim 7 , wherein the concentration of hydrogen peroxide is between 0.001 and 0.01 M.11. A composition according to in the form of an injectable hydrogel.12. A composition according to further comprising cells claim 7 , preferably stem cells and or chondrocytes claim 7 , wherein said stem cells are more preferably mesenchymal stem cells claim 7 , embryonic stem cells or pluripotent stem cells or a combination of different ...

Similar document detection and electronic discovery

Systems and methods are disclosed for performing duplicate document analyses to identify texturally identical or similar documents, which may be electronic documents stored within an electronic discovery platform. A process is described which includes representing each of the documents, including a target document, as a relatively large n-tuple vector and also as a relatively small m-tuple vector, performing a series of calculations on the set of m-tuple vectors to identify a set of documents which are candidate near-duplicates to the target document, and then filtering the candidate set of near-duplicate documents based upon the distance of their n-tuple vectors from the n-tuple vector of the target document.

Maintaining Consistent Photodetector Sensitivity in an Optical Measurement System

An illustrative optical measurement system includes a light source configured to emit a light pulse directed at a target. The optical measurement system further includes a plurality of photodetectors configured to operate in accordance with an input bias voltage. The optical measurement system further includes a control circuit configured to identify a photodetector subset included in the plurality of photodetectors and that detects, while the input bias voltage has a first value, photons of the light pulse after the light pulse is scattered by the target. The control circuit is further configured to determine, based on the identifying of the photodetector subset, an overvoltage associated with the photodetector subset. The control circuit is further configured to update, based on the overvoltage, the input bias voltage for the plurality of photodetectors to have a second value. 1. An optical measurement system comprising:a light source configured to emit a light pulse directed at a target;a plurality of photodetectors configured to operate in accordance with an input bias voltage; and{'claim-text': ['identify a photodetector subset included in the plurality of photodetectors and that detects, while the input bias voltage has a first value, photons of the light pulse after the light pulse is scattered by the target;', 'determine, based on the identifying of the photodetector subset, an overvoltage associated with the photodetector subset; and', 'update, based on the overvoltage, the input bias voltage for the plurality of photodetectors to have a second value.'], '#text': 'a control circuit configured to:'}2. The optical measurement system of claim 1 , wherein the determining the overvoltage comprises abstaining from determining the overvoltage based on an additional photodetector subset included in the plurality of photodetectors and that does not detect photons of the light pulse after the light pulse is scattered by the target.3. The optical measurement system of ...

Wearable Systems with Stacked Photodetector Assemblies

A wearable system includes a stacked photodetector assembly including a first wafer including a single photon avalanche diode (SPAD), the first wafer having a thickness T configured to minimize absorption by the first wafer of photons included in light incident upon the first wafer while the SPAD is in a disarmed state, and a second wafer having a thickness T including a fast gating circuit electrically coupled to the SPAD and configured to arm and disarm the SPAD, the second wafer bonded to the first wafer in a stacked configuration. The fast gating circuit includes a capacitor configured to be charged, while the SPAD is in the disarmed state, with a bias voltage by a voltage source, and supply, while the SPAD is in an armed state, the bias voltage to the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD. 1. A wearable system for use by a user , comprising: [{'b': '1', 'a first wafer including a single photon avalanche diode (SPAD), the first wafer having a thickness T configured to minimize absorption by the first wafer of photons included in light incident upon the first wafer while the SPAD is in a disarmed state; and'}, {'b': '2', 'a second wafer having a thickness T including a fast gating circuit electrically coupled to the SPAD and configured to arm and disarm the SPAD, the second wafer bonded to the first wafer in a stacked configuration;'}], 'a stacked photodetector assembly comprising be charged, while the SPAD is in the disarmed state, with a bias voltage by a voltage source, and', 'supply, while the SPAD is in an armed state, the bias voltage to the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD., 'wherein the fast gating circuit includes a capacitor configured to2. The wearable system of claim 1 , further comprising a light source configured to generate the light.3. The wearable system of claim 2 , wherein the light comprises near infrared light.4. The wearable system of ...

Photodetector systems with low-power time-to-digital converter architectures to determine an arrival time of photon at a photodetector based on event detection time window

An exemplary photodetector system includes a photodetector and a time-to-digital converter (TDC) coupled to the photodetector. The TDC is configured to receive, during a predetermined event detection time window that commences in response to an application of a light pulse to a target, a signal triggered by an event in which the photodetector detects a photon of the light pulse after the light pulse reflects from the target. The TDC is further configured to enable, in response to the receiving the signal, a gated ring oscillator (GRO) of the TDC, measure, using the GRO, a time interval between when the event occurred and an end of the predetermined event detection time window, and determine, based on the time interval and the predetermined event detection time window, an arrival time of the photon at the photodetector.

Photodetector Systems with Low-Power Time-to-Digital Converter Architectures to determine an arrival time of photon at a photodetector based on event detection time window

An exemplary photodetector system includes a photodetector and a time-to-digital converter (TDC) coupled to the photodetector. The TDC is configured to receive, during a predetermined event detection time window that commences in response to an application of a light pulse to a target, a signal triggered by an event in which the photodetector detects a photon of the light pulse after the light pulse reflects from the target. The TDC is further configured to enable, in response to the receiving the signal, a gated ring oscillator (GRO) of the TDC, measure, using the GRO, a time interval between when the event occurred and an end of the predetermined event detection time window, and determine, based on the time interval and the predetermined event detection time window, an arrival time of the photon at the photodetector. 1. A system comprising:a photodetector; receive, during a predetermined event detection time window that commences in response to an application of a light pulse to a target, a signal triggered by an event in which the photodetector detects a photon of the light pulse after the light pulse reflects from the target, the signal configured to enable a gated ring oscillator (GRO) of the TDC; and', 'measure, using the GRO, a time interval between when the event occurred and an end of the predetermined event detection time window; and, 'a time-to-digital converter (TDC) coupled to the photodetector and configured toa control circuit coupled to the TDC and configured to determine, based on the time interval and the predetermined event detection time window, an arrival time of the photon at the photodetector.2. The system of claim 1 , wherein the signal is further configured to:enable the GRO of the TDC while the signal is being received by the TDC; anddisable the GRO of the TDC upon a stopping of the signal.3. The system of claim 1 , wherein the TDC is further configured to receive claim 1 , subsequent to the predetermined event detection time window claim 1 ...

Data processing method, apparatus, system and storage media

A data processing method includes determining feature points in first point cloud data and feature points in second point cloud data, the first point cloud data and the second point cloud data being used for representing different parts of a same object; performing feature matching between the first point cloud data and the second point cloud data to determine feature points satisfying feature matching condition(s) between the first point cloud data and the second point cloud data, and form a plurality of feature point pairs; determining a transformation matrix in which spatial distances between feature points in one or more feature point pairs of the plurality of feature point pairs conform to a proximity condition; and performing coordinate transformation on the one or more feature point pairs using the transformation matrix to register the first point cloud data with the second point cloud data.

Wearable systems with stacked photodetector assemblies

A wearable system includes a stacked photodetector assembly including a first wafer including a single photon avalanche diode (SPAD), the first wafer having a thickness T1 configured to minimize absorption by the first wafer of photons included in light incident upon the first wafer while the SPAD is in a disarmed state, and a second wafer having a thickness T2 including a fast gating circuit electrically coupled to the SPAD and configured to arm and disarm the SPAD, the second wafer bonded to the first wafer in a stacked configuration. The fast gating circuit includes a capacitor configured to be charged, while the SPAD is in the disarmed state, with a bias voltage by a voltage source, and supply, while the SPAD is in an armed state, the bias voltage to the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD.

Fast-gated photodetector architectures comprising dual voltage sources with a switch configuration

An exemplary photodetector includes a SPAD and a capacitor. The capacitor is configured to be charged, while the SPAD is in a disarmed state, with a bias voltage by a voltage source. The capacitor is further configured to supply, when the SPAD is put in an armed state, the bias voltage to an output node of the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD.

Phase Lock Loop Circuit Based Adjustment of a Measurement Time Window in an Optical Measurement System

An illustrative system may include a TDC configured to monitor for an occurrence of a photodetector output pulse during a measurement time window that is within and shorter in duration than a light pulse time period, the photodetector output pulse generated by a photodetector when the photodetector detects a photon from a light pulse having a light pulse time period; a PLL circuit for the TDC and having a PLL feedback period defined by a reference clock, the PLL circuit configured to: output a plurality of fine phase signals and output one or more signals representative of a plurality of feedback divider states during the PLL feedback period; and a precision timing circuit configured to adjust, based on one or more of the fine phase signals and/or the feedback divider states, a temporal position of the measurement time window within the light pulse time period.

Hydrogels based on polymers of dextran tyramine and tyramine conjugates of natural polymers

The invention relates to composition comprising a dextran-tyramine conjugate and a conjugate selected from the group consisting of chondroitin sulphate-tyramine, collagen-tyramine, chitosan-tyramine, chitosan-phloretic acid, gelatine-tyramine, heparan sulphate-tyramine, keratin sulphate-tyramine, hyaluronic acid-tyramine and heparin-tyramine.

Non-invasive Wearable Brain Interface Systems Including a Headgear and a Plurality of Self-contained Photodetector Units

An exemplary non-invasive wearable brain interface system includes a headgear configured to be worn on a head of a user, a plurality of self-contained photodetector units configured to removably attach to the headgear, the photodetector units each comprising a plurality of photodetectors configured to detect photons of light after the photons reflect from a target within a brain of the use, and a master control unit coupled to each of the photodetector units and configured to control the photodetector units. 1. A non-invasive wearable brain interface system comprising:a headgear configured to be worn on a head of a user;a plurality of self-contained photodetector units configured to removably attach to the headgear, the photodetector units each comprising a plurality of photodetectors configured to detect photons of light after the photons reflect from a target within a brain of the user; anda master control unit coupled to each of the photodetector units and configured to control the photodetector units.2. The brain interface system of claim 1 , further comprising a light source configured to generate the light.3. The brain interface system of claim 2 , wherein the light source comprises an individual light source included in each of the photodetector units.4. The brain interface system of claim 2 , wherein the light source is included in the master control unit.5. The brain interface system of claim 1 , wherein:the headgear comprises a plurality of cutouts; andthe photodetector units are configured to fit within the cutouts.6. The brain interface system of claim 5 , wherein each cutout included in the plurality of cutouts is surrounded by a rigid ring embedded within the headgear and configured to facilitate attachment of the photodetector units to the headgear.7. The brain interface system of claim 1 , wherein:the headgear comprises a plurality of protrusions; andthe photodetector units are configured to attach to the protrusions.8. The brain interface system of ...

Image processing method, apparatus, and storage medium

The present disclosure discloses an image processing method, apparatus, and a non-transitory computer readable medium. The method can includes: acquiring a three-dimensional (3D) model and original texture images of an object, wherein the original texture images are acquired by an imaging device; determining a mapping relationship between the 3D model and the original texture images of the object; determining, among the original texture images, a subset of texture images associated with a first perspective of the imaging device; splicing the subset of texture images into a spliced texture image corresponding to the first perspective; and mapping the spliced texture image to the 3D model according to the mapping relationship.

Point cloud meshing method, apparatus, device and computer storage media

A method, an apparatus, a device and a computer storage media for point cloud meshing are provided. The method includes performing a mesh reconstruction on point cloud data corresponding to a target object to obtain a reconstruction model for characterizing a surface contour of the target object; performing image registration on the reconstruction model with respect to a standard model corresponding to the target object; determining a mesh portion in the registered reconstruction model that does not overlap with the standard model; and removing the determined mesh portion from the registered reconstruction model to obtain a resulting reconstruction model of the target object. The point cloud meshing method repairs a hole structure of an object surface without the need of post-editing manually, and thus is able to improve the efficiency of repairing the hole structure of the object surface.

Temporal Resolution Control for Temporal Point Spread Function Generation in an Optical Measurement System

An exemplary system includes a photodetector configured to generate a plurality of photodetector output pulses over time as a plurality of light pulses are applied to and scattered by a target, a TPSF generation circuit configured to generate, based on the photodetector output pulses, a TPSF representative of a light pulse response of the target, and a control circuit configured to direct the TPSF generation circuit to selectively operate in different resolution modes. 1. A system comprising:a photodetector configured to generate a plurality of photodetector output pulses over time as a plurality of light pulses are applied to and scattered by a target, wherein each photodetector output pulse is generated when the photodetector detects a photon from one of the light pulses that is scattered by the target;a temporal point spread function (TPSF) generation circuit configured to generate, based on the photodetector output pulses, a TPSF representative of a light pulse response of the target; and operate in a first resolution mode in which a temporal resolution of the TPSF is a first temporal resolution value, and', 'operate in a second resolution mode in which the temporal resolution of the TPSF is a second temporal resolution value different than the first temporal resolution value., 'a control circuit communicatively coupled to the TPSF generation circuit and configured to direct the TPSF generation circuit to selectively'}2. The system of claim 1 , wherein the TPSF generation circuit comprises: record timestamp symbols corresponding to occurrences of the photodetector output pulses, and', 'provide an output signal representative of the recorded timestamp symbols; and, 'a time-to-digital converter (TDC) configured to'}a signal processing circuit configured to generate, based on the output signal provided by the TDC, the TPSF.3. The system of claim 2 , wherein the TPSF generation circuit further comprises:a phase lock loop (PLL) circuit having a PLL feedback period ...

Phase lock loop circuit based adjustment of a measurement time window in an optical measurement system

An exemplary system includes a photodetector configured to generate a photodetector output pulse when the photodetector detects a photon from a light pulse having a light pulse time period, a TDC configured to monitor for the occurrence of the photodetector output pulse during a measurement time window that is within and shorter in duration than the light pulse time period, a PLL circuit for the TDC, and a precision timing circuit connected to the PLL circuit and configured to adjust, based on at least one signal generated within the PLL circuit, a temporal position of the measurement time window within the light pulse time period.

Material hoisting device for tunnel boring machine

The invention relates to a material hoisting device for a tunnel boring machine. The material hoisting device for the tunnel boring machine comprises a guide rail mechanism, a power mechanism, a driven mechanism and a craning mechanism, wherein the guide rail mechanism comprises a guide rail and a first transmission part, the power mechanism comprises a power device and a connecting rod, the driven mechanism comprises a driven device and a driven machine frame, the craning mechanism comprises a balance frame, a hydraulic cylinder and a reverser. The reverser comprises a pulley wheel, a steel wire rope and a pulley wheel seat. Extension motion of the hydraulic cylinder is converted into lifting motion of the balance frame through the reversing of the steel wire rope and the pulley wheel, and accordingly material lifting is achieved. The power device and the first transmission part perform matched motion through the second transmission part to produce stable power, the stable power is acted ...

Photodetector systems with low-power time-to-digital converter architectures to determine an arrival time of photon at a photodetector based on event detection time window

An illustrative system may include a component configured to be worn on a body of a user, the component comprising a time-to-digital converter (TDC) configured to: receive, during a predetermined event detection time window that commences in response to an application of a light pulse to a target within the body, a signal triggered by an event in which a photodetector detects a photon of the light pulse after the light pulse reflects from the target; and measure, based on the receiving the signal, a time interval between when the event occurred and an end of the predetermined event detection time window. The system may further include a processor configured to determine, based on the time interval and the predetermined event detection time window, an arrival time of the photon at the photodetector.

Non-invasive wearable brain interface systems including a headgear and a plurality of self-contained photodetector units configured to removably attach to the headgear

An exemplary non-invasive wearable brain interface system includes a headgear configured to be worn on a head of the user and a plurality of self-contained photodetector units configured to removably attach to the headgear. The photodetector units each include a plurality of photodetectors configured to detect photons of light after the photons reflect from a target within a brain of the user. The brain interface system further includes a master control unit communicatively coupled to each of the photodetector units by way of a plurality of wires and configured to control the photodetector units, the master control unit comprising an input power port configured to connect to a power cable that provides power from a power source for the master control unit and the photodetector units.

Non-invasive wearable brain interface systems including a headgear and a plurality of self-contained photodetector units

An exemplary non-invasive wearable brain interface system includes a headgear configured to be worn on a head of a user, a plurality of self-contained photodetector units configured to removably attach to the headgear, the photodetector units each comprising a plurality of photodetectors configured to detect photons of light after the photons reflect from a target within a brain of the use, and a master control unit coupled to each of the photodetector units and configured to control the photodetector units.

Photodetector systems with low-power time-to-digital converter architectures to determine an arrival time of photon at a photodetector based on event detection time window

An illustrative wearable system includes a head-mountable component configured to be worn on a head of a user and a processor. The head-mountable component includes a time-to-digital converter (TDC) configured to receive, during a predetermined event detection time window that commences in response to an application of a light pulse to a target, a signal triggered by an event in which a photodetector detects a photon of the light pulse after the light pulse reflects from the target, the signal configured to enable a GRO of the TDC. The TDC is further configured to measure, using the GRO, a time interval between when the event occurred and an end of the predetermined event detection time window. The processor is configured to determine, based on the time interval and the predetermined event detection time window, an arrival time of the photon at the photodetector.

Minimally invasive rebar detection method for building reinforced concrete members

The invention discloses a minimally invasive rebar detection method for building reinforced concrete members. The minimally invasive rebar detection method for building reinforced concrete members includes the steps of firstly, using a rebar scanner to scan the surface of a reinforced concrete member of a target building to be detected to determine axis of each rebar, and marking the surface of concrete; secondly, making three holes on two sides of the rebar position and the surface of the concrete below by punching, and chiseling the concrete to expose the dimension of the rebar; thirdly, using a manual blower to clean concrete dust in the three holes; fourthly, using an inner fixture to clamp the dimension of the rebar, and measuring reading of the inner fixture with a vernier caliper so as to obtain the final dimension of the rebar. By the minimally invasive rebar detection method for building reinforced concrete members, labor and time consumption can be reduced, damage of rebar protection ...

Holding type efficient wrench

The invention relates to a holding type efficient wrench, which belongs to tools and is a quick and flexible bolt screwing tool. The holding type efficient wrench is mainly structurally characterized in that teeth on a handle is meshed with a large gear, small claws on a latch device are connected with a clamping plate device, and a gear plate is in transmission with a sprocket device. When the holding type efficient wrench is in operation, the teeth on the handle is meshed with small teeth on the gear to drive another small gear which is capable of rotating flexibly, the small gear is provided with two small claws, when a bolt is loosened by the claws to a certain extent, the bolt can be quickly unscrewed under the action of inertia force of the claws, and accordingly quickening bolt screwing is realized while the wrench needs no rotation in use but only tightly holding the handle. Therefore, the wrench not only has the advantages similar to sprocket mechanisms which are flexible but can ...

Telescopic Apparatus

A telescopic apparatus includes an internal tube telescopically inserted in an external tube. The internal tube includes depressions defined therein. A frame is secured to the external tube. A lever is pivotally connected to the frame. The lever includes a space transversely defined therein, a groove in communication with and in parallel to the space, and a pawl for insertion in a selected one of the depressions for locking the internal tube relative to the external tube. A spring is substantially located in the space. The spring includes a hook for hooking the frame and a bent section located in the groove. A short tube is located in the space and against the spring. A screw is inserted through the frame, the spring and the short tube. A security unit is movably connected to the frame between a locking position against the lever to avoid pivoting of the lever and a releasing position away from the lever to allow pivoting of the lever. 1. A telescopic apparatus including:an external tube;an internal tube telescopically inserted in the external tube, wherein the internal tube includes depressions defined therein;a frame secured to the external tube;a lever pivotally connected to the frame, wherein the lever includes a space transversely defined therein, a groove in parallel to and in communication with the space, and a pawl for insertion in a selected one of the depressions for locking the internal tube relative to the external tube;a spring substantially located in the space, wherein the spring includes a hook for hooking the frame and a bent section located in the groove;a short tube located in the space and against the spring;a screw inserted through the frame, the spring and the short tube; anda security unit movably connected to the frame between a locking position against the lever to avoid pivoting of the lever and a releasing position away from the lever to allow pivoting of the lever.2. The telescopic apparatus according to claim 1 , wherein the frame ...

Computing device and method for controlling access to driver programs

A computing device and a method for controlling access to driver programs obtains a first system time at the time that an application uses a CTL_CODE to access a driver program. The first system time and the CTL_CODE is encrypted to generate an encrypted CTL_CODE which is then sent to the driver program. The encrypted CTL_CODE is decrypted to obtain the first system time and the CTL_CODE therein. A second system time at the time that the driver program receives the encrypted CTL_CODE is obtained and compared with the first system time. Access to the driver program is allowed if a difference between the first system time and the second system time falls within a predetermined range, and access to the driver program is forbidden if the difference is beyond the predetermined range.

Electronic device having multifunctional network interface port

An electronic device includes a network interface port, a processing unit, a network card, a serial interface, and a microchip. The network interface port connects to a debugging host or connects to an external network. The processing unit is connected to the network interface port. The network card is connected to the processing unit. The microchip is connected to the processing unit through the serial interface. The processing unit determines whether the network interface port is connected to the debugging host or connected to the external network, and selectively connects the network card or the serial interface to the network interface port according to the determination.

TIREDNESS STATE DETECTING SYSTEM AND METHOD

A computing device and method detects a tiredness state of a user. A camera positioned on a display device captures images of the user when the user is positioned in front of the camera. The computing device analyzes the images to obtain eye parameters of the eye of the user. The computing device reminds the user to have a rest, in response to a determination that the eye parameters of the eye of the user match predetermined eye parameters of the eye of the user. 1. A computing device , comprising:a storage system;at least one processor; andone or more programs stored in the storage system and being executable by the at least one processor, the one or more programs comprising:an analyzing module that obtains eye parameters of an eye of a user from images of the user positioned in front of a display device having a camera positioned on the display device;a setting module that sets predetermined eye parameters of the eye of the user;a determination module that determines if the obtained eye parameters of the eye of the user match the predetermined eye parameters of the eye of the user; anda reminding module that outputs an indication to remind the user to have a rest, in response to a determination that the obtained eye parameters of the eye of the user match the predetermined eye parameters of the eye of the user.2. The computing device of claim 1 , wherein the predetermined eye parameters comprise a percentage range of a white part of the eye claim 1 , and the eye parameters of the eye of the user comprise a percentage of the white part of the eye.3. The computing device of claim 2 , wherein the percentage range of the white part of the eye amounts to 20% to 25% area of the eye.4. The computing device of claim 3 , wherein the obtained eye parameters of the eye of the user match the predetermined eye parameters of the eye of the user upon the condition that the percentage of the white part of the eye falls within the percentage range of the white part of the eye.5. ...

ELECTRONIC DEVICE, STORAGE MEDIUM AND METHOD FOR VALIDATING SPEED OF A FAN THEREOF

In a method for validating speed of a fan of an electronic device, different speeds of the fan are set for validation. The method controls the fan to operate under each of the set speeds in turn, and controls a camera device to continuously capture images of the fan with a shutter speed of the camera device corresponding to the set speed. The images are transmitted to a comparison unit to be analyzed for sameness and clarity. The fan is determined to work abnormally if not all the images are sameness or if at least one image is unclear, and the fan is determined to work normally if all the images are sameness or clear. A validation report is generated to indicate whether the fan is normal or abnormal according to the determination. 1. A computer-implemented method for validating speed of a fan of an electronic device , the electronic device electronically connected to a camera device , the method comprising:setting a plurality of speeds of the fan for validation;controlling the fan to operate under each of the set speeds in turn, and controlling the camera device to continuously capture multiple images of the fan using a shutter speed of the camera device corresponding to the set speed;reading the images of the fan from the camera device, and transmitting the images to a comparison unit of the electronic device for analysis;determining that the fan works abnormally under the set speed if the images of the fan are not sameness or at least one image is unclear, or determining that the fan works normally under the set speed if all the images of the fan are sameness or clear; andgenerating a first validation report indicating that the fan is abnormal if the fan works abnormally under one of the set speeds, or generating a second validation report indicating that the fan is normal if the fan works normally under all the set speeds.2. The method as claimed in claim 1 , wherein the set speed of the fan is controlled by sending a pulse-width modulation duty cycle ...

CASE STRUCTURE

A case structure is disclosed. The case structure includes a plastic panel, a case portion, and a plurality of supporting parts. The case portion includes an assembly part. The assembly part is connected to the plastic panel for assembling. The plurality of supporting parts is connected to the assembly part. The plurality of supporting parts supports the inside of the plastic panel. 1. A case structure comprising:a plastic panel;a case portion comprising:an assembly part connected to the plastic panel for assembling; anda plurality of supporting parts connected to the assembly part; wherein the plurality of supporting parts support an inside of the plastic panel.2. The case structure as claimed in claim 1 , wherein the plurality of supporting parts are a plurality of bending metal elements; the plurality of bending metal elements and the case portion are integrally formed.3. The case structure as claimed in claim 1 , wherein the plurality of supporting parts is a plurality of extension elements; the plurality of extension elements is protruded from the case portion.4. The case structure as claimed in claim 3 , wherein one end of each of the plurality of extension elements is fastened to the case portion; another end of each of the plurality of extension elements supports the inside of the plastic panel.5. The case structure as claimed in claim 1 , wherein the inside of the plastic panel further comprises a chamfer part for matching a shape of the case portion.6. The case structure as claimed in claim 1 , wherein the assembly part comprises four sides claim 1 , the plurality of supporting parts are located on three sides of the assembly part.7. The case structure as claimed in claim 1 , wherein the case structure is a desktop computer case.8. The case structure as claimed in claim 1 , wherein the case is a metal case. 1. Field of the InventionThe present invention relates to a case structure; more particularly, the present invention relates to a case structure which ...

Locking mechanism with easy assembly and electronic device therewith

A locking mechanism includes a lock for passing through an opening of a housing. The lock includes a lock head, a cover whereon a slot is formed, a constraining portion, and a platform structure for contacting against a fastening portion of the housing as the cover passes through the opening. The locking mechanism further includes a tongue piece installed on a side of the cover and rotating with the lock head synchronously. The tongue piece includes a latching portion for latching inside an indentation of a door as the tongue piece rotates to a latching position, and a stopping portion for contacting against an end of the constraining portion as the tongue piece rotates to the latching position. The locking mechanism further includes a jump ring for engaging inside the slot on the cover so as to fix the lock inside the housing.

METHOD AND COMPOSITION FOR TREATING A DISEASE OR CONDITION RELATED TO OREXIN RECEPTOR 1, OREXIN RECEPTOR 2, SOMATOSTATIN RECEPTOR 2 OR DOPAMINE D2L RECEPTOR

Disclosed herein are methods and composition for treating a disease or condition related to orexin receptor 1, orexin receptor 2, somatostatin receptor 2 or dopamine Dreceptor. The method comprises administering a composition comprising an effective amount of verapamil and a pharmaceutically acceptable excipient to a subject, wherein the verapamil is capable of binding to at least one of a receptor selected from the group consisting of orexin receptor 1, orexin receptor 2, somatostatin receptor 2 and dopamine Dreceptor of the subject. 1. A use of verapamil for the manufacture of a medicament for treating a disease or condition related to orexin receptor 1 , orexin receptor 2 , somatostatin receptor 2 or dopamine D , receptor , wherein the verapamil is capable of binding to any of the orexin receptor 1 , orexin receptor 2 , somatostatin receptor 2 or dopamine D , receptor.2. The use of claim 1 , wherein the verapamil is any of (R)-(+)-verapamil claim 1 , (S)-(−)-verapamil claim 1 , a mixture of (R)-(+)-verapamil and (S)-(−)-verapamil claim 1 , a pharmaceutically acceptable derivative claim 1 , stereoisomer claim 1 , metabolite claim 1 , salt or solvate thereof claim 1 , or a combination thereof.3. The use of claim 2 , wherein the verapamil is any of (R)-(+)-verapamil claim 2 , a pharmaceutically acceptable derivative claim 2 , stereoisomer claim 2 , metabolite claim 2 , salt claim 2 , or solvate thereof or a combination thereof.4. The use of claim 1 , wherein the disease or condition related to orexin receptor 1 or orexin receptor 2 is selected from the group consisting of obesity claim 1 , migraine claim 1 , cluster headache claim 1 , Parkinson's disease claim 1 , Alzheimer's disease claim 1 , depression claim 1 , addictions claim 1 , anxiety claim 1 , cancer claim 1 , diabetes claim 1 , insomnia claim 1 , irritable bowel syndrome claim 1 , narcolepsy claim 1 , neuropathic pain claim 1 , pain claim 1 , schizophrenia claim 1 , sleep disorder claim 1 , and Tourette ...

Latch Mechanism, Electronic Apparatus Having the Same, and Method for Removing a Shell Cover from a Shell Base Using the Same

An electronic apparatus includes a shell base, a shell cover and a latch mechanism including an operating component, a pivot axle and a driving axle. The operating component has an access portion and two support portions extending through the shell cover. The pivot axle extends through the support portions, and has two end parts disposed at opposite lateral sides of the support portions and coupled rotatably to the shell cover. The driving axle extends through the support portions and is received in a limit groove of the shell base. The access portion is pivotable about the pivot axle from a closed position to an open position while the driving axle is positioned in the slide direction, thereby moving the pivot axle and the shell cover relative to the shell base. 1. An electronic apparatus comprising:a shell base defining an internal space and having an abutment portion that is disposed in said internal space and that is formed with a limit groove opening upwardly;a shell cover coupled detachably to said shell base, covering said internal space and slidable relative to said shell base along a slide direction, said shell cover having a through hole aligned with said limit groove of said abutment portion; and an operating component that has an access portion disposed outside said shell cover, and a pair of spaced-apart support portions extending from said access portion into said internal space through said through hole,', 'a pivot axle that is adjacent to said through hole, that extends through said support portions of said operating component, and that has a pair of end parts disposed respectively at opposite lateral sides of said support portions, said end parts being coupled rotatably to said shell cover, and', 'a driving axle that extends through said support portions of said operating component, that is spaced apart from said pivot axle, that is disposed in said internal space and that is received and vertically-movable in said limit groove of said abutment ...

Image processing method, apparatus, and storage medium

The present disclosure discloses an image processing method, apparatus, and a non-transitory computer readable medium. The method can includes: acquiring a three-dimensional (3D) model and original texture images of an object, wherein the original texture images are acquired by an imaging device; determining a mapping relationship between the 3D model and the original texture images of the object; determining, among the original texture images, a subset of texture images associated with a first perspective of the imaging device; splicing the subset of texture images into a spliced texture image corresponding to the first perspective; and mapping the spliced texture image to the 3D model according to the mapping relationship.

NEURAL NETWORK COMPUTING

A method including receiving, by a processor, a computing instruction for a neural network, wherein the computing instruction for the neural network includes a computing rule for the neural network and a connection weight of the neural network, and the connection weight is a power of 2; and inputting, for a multiplication operation in the computing rule for the neural network, a source operand corresponding to the multiplication operation to a shift register, and performing a shift operation based on a connection weight corresponding to the multiplication operation, wherein the shift register outputs a target result operand as a result of the multiplication operation. The neural network uses a shift operation, and a neural network computing speed is increased. 1. A method comprising:receiving a computing instruction for a neural network, the computing instruction for the neural network including a computing rule for the neural network and a connection weight of the neural network;inputting, for a multiplication operation in the computing rule for the neural network, a source operand corresponding to the multiplication operation to a shift register;performing a shift operation based on a connection weight corresponding to the multiplication operation.2. The method of claim 1 , further comprising outputting a target result operand as a result of the multiplication operation.3. The method of claim 1 , wherein the connection weight corresponding to the multiplication operation is 2 to the power of N claim 1 , and N is an integer greater than zero.4. The method of claim 3 , wherein the inputting the source operand corresponding to the multiplication operation to the shift register includes:inputting the source operand corresponding to the multiplication operation to the shift register; andshifting to left N times.5. The method of claim 1 , wherein the connection weight corresponding to the multiplication operation is 2 to the power of negative N claim 1 , and N is an ...

Neural Network Processing Method, Apparatus, Device and Computer Readable Storage Media

A method, an apparatus, a device and a computer readable storage media for neural network processing are disclosed. The method includes constructing a training function having a constraint for a neural network; and solving a constrained optimization based on the training function to obtain connection weights of the neural network. The neural network processing method, apparatus, device and computer readable storage media of the embodiments of the present disclosure model a problem of solving connection weights of a neural network from the perspective of an optimization problem, and can effectively find a solution for the problem of solving the connection weights of the neural network, thus being able to improve the speed of training of the neural network. 1. A method implemented by one or more computing devices , the method comprising:constructing a training function with a constraint for a neural network; andfinding a solution of a constrained optimization solution based on the training function to obtain connection weights of the neural network.2. The method according to claim 1 , wherein a solving algorithm used for solving the constrained optimization comprises one of a penalty function method claim 1 , a multiplier method claim 1 , a projected gradient method claim 1 , a reduced gradient method claim 1 , or a constrained variable-scale method.3. The method according to claim 1 , further comprising determining a solving algorithm used for solving the constrained optimization based on the constraint of the training function before finding the solution of the constrained optimization solution based on the training function to obtain the connection weights of the neural network.4. The method according to claim 1 , wherein finding the solution of the constrained optimization solution based on the training function to obtain the connection weights of the neural network comprises:performing equivalent transformation for the training function based on an indication ...

WIRELESS MOBILE COMMUNICATION

This disclosure provides a computer-implemented process for an attachment process to a network. The method comprises, receiving a data request from a user equipment, connecting the user equipment is to a mobile communication network through a first base station, determining a router bound to the user equipment, connecting the router to the mobile communication network through a second base station, establishing a connection between the user equipment and the router through the first base station and the second base station. 1. A computer-implemented method , the method comprising:receiving a request from a user equipment, the user equipment being connected to a mobile communication network through a first base station;determining a router bound to the user equipment, the router being connected to the mobile communication network through a second base station; andestablishing a connection between the user equipment and the router through the first base station and the second base station.2. The method of claim 1 , wherein the router is connected to a broadband network claim 1 , the method further comprising:connecting the user equipment to the broadband network through the connection between the user equipment and the router.3. The method of claim 1 , wherein the router is connected to the mobile communication network with a SIM card.4. The method of claim 3 , wherein the router is bound to the user equipment with an identification of the SIM card.5. The method of claim 1 , the establishing a connection between the user equipment and the router through the first base station and the second base station includes:sending an IP address allocation request to the router;receiving an IP address allocated for the user equipment from the router; andestablishing a connection between the user equipment and the router utilizing the allocated IP address.6. The method of claim 1 , wherein the first base station and the second base station are the same base station claim 1 , and ...

INTERNALLY THREADED POST, ASSEMBLING STRUCTURE AND ASSEMBLING METHOD

An internally threaded post adapted to be fixed to a first shell is provided. The first shell has a boss, and the boss has an opening. The internally threaded post includes a screwing portion and a fixing portion. The screwing portion has a threaded hole, in which an outer diameter of the screwing portion is larger than an inner diameter of the opening. The fixing portion is connected with the screwing portion, in which an outer diameter of the fixing portion is smaller than the outer diameter of the screwing portion, and the fixing portion is fixed in the opening. In addition, an assembling structure having the internally threaded post and an assembling method are also provided. 1. An internally threaded post adapted to be fixed to a first shell , the first shell having a boss , the boss having an opening , and the internally threaded post comprising:a screwing portion having a threaded hole, wherein an outer diameter of the screwing portion is larger than an inner diameter of the opening; anda fixing portion connecting with the screwing portion, wherein an outer diameter of the fixing portion is smaller than the outer diameter of the screwing portion, and the fixing portion is fixed in the opening.2. The internally threaded post of claim 1 , wherein the screwing portion is leant against a top end of the boss.3. The internally threaded post of claim 1 , wherein a second shell has a through hole claim 1 , and a screwing element is adapted to pass through the through hole and screwed in the threaded hole for assembling the second shell to the first shell.4. The internally threaded post of claim 1 , wherein the fixing portion has a first flange at least partially embedded in an inner wall of the opening.5. The internally threaded post of claim 4 , wherein a surface of the first flange has a plurality of first concave patterns.6. The internally threaded post of claim 5 , wherein the fixing portion further has a second flange at least partially embedded in the inner ...

PREPARATION METHOD FOR SILVER NANOWIRES WITH UNIFORM ASPECT RATIO AND NODES

A preparation method for silver nanowires, including: dissolving a dispersant in a tribasic alcohol to get a viscous clear solution, dissolving the silver nitrate in a tribasic alcohol to get a clear solution; then, adding the silver nitrate solution to the dispersant solution for uniform mixing, finally, transferring the mixed solution into a reaction kettle, putting into an oven with a set temperature (170˜200° C.), and ending the reaction after a period of time. The mother solution of silver nanowires is diluted with alcohol and then centrifuged to separate organics, the novel silver nanowires with a uniform aspect ratio and nodes are obtained. 1. A preparation method for silver nanowires , comprising the following steps:(1) dissolving a dispersant in a tribasic alcohol to get a viscous clear solution;(2) dissolving silver nitrate in a tribasic alcohol to get a clear solution;(3) adding the silver nitrate/tribasic alcohol solution to the dispersant/tribasic alcohol solution for uniform mixing, finally, transferring the mixed solution into a reaction kettle, reacting at 170-200° C. for 7-8 hours, and cooling in cold water to obtain a mother solution containing silver nanowires; and(4) diluting the mother solution containing the silver nanowires with absolute alcohol, and centrifuging to obtain the silver nanowires.2. The preparation method for silver nanowires according to claim 1 , wherein the dispersant in step (1) is polyvinylpyrrolidone.3. The preparation method for silver nanowires according to claim 1 , wherein the tribasic alcohol is an analytically pure glycerol solution.4. The preparation method for silver nanowires according to claim 2 , wherein in step (3) claim 2 , 40 ml claim 2 , 0.05M silver nitrate/tribasic alcohol solution is added into 60 ml claim 2 , 0.67M polyvinylpyrrolidone/tribasic alcohol solution for uniform stirring and mixing.5. The preparation method for silver nanowires according to claim 3 , wherein in step (3) claim 3 , 40 ml claim 3 ...

PREPARATION METHOD FOR SILVER NANOWIRES WITH UNIFORM ASPECT RATIO

A preparation method for silver nanowires with a uniform aspect ratio, including: dissolving at a certain temperature silver nitrate in glycerol to get a solution A; dissolving at a certain temperature polyvinylpyrrolidone (PVP) in glycerol to get a solution B; mixing uniformly the solution A and the solution B to form a solution C; then, adding a certain amount of a medium into the solution C and mixing uniformly to form a solution D, finally, transferring the solution D into a reaction kettle, putting the reaction kettle into an oven with a set temperature, and ending the reaction after a certain time of reaction. The reactants are centrifuged twice to obtain precipitated silver nanowires. 1. A preparation method for silver nanowires , comprising the following steps:(1) dissolving silver nitrate in glycerol to get a solution A;(2) dissolving polyvinylpyrrolidone in glycerol to get a solution B;(3) mixing uniformly the solution A and the solution B to form a solution C; and(4) adding an ultrapure water medium into the solution C and mixing uniformly to form a solution D, finally, transferring the solution D into a reaction kettle for reaction at 150° C.±10° C., and centrifuging the reactants to obtain silver nanowires.2. The preparation method according to claim 1 , wherein reaction time in the reaction kettle is 9-10 hours.3. The preparation method according to claim 1 , wherein in step (1) claim 1 , 0.16 g-0.32 g silver nitrate is dissolved at room temperature in 20 ml of glycerol to get the solution A.4. The preparation method according to claim 3 , wherein in step (2) claim 3 , 5 g-7 g polyvinylpyrrolidone is dissolved at room temperature in 80 ml of glycerol to get the solution B.5. The preparation method according to claim 4 , wherein in step (4) claim 4 , 2.5 ml-10 ml of the ultrapure water is added into the solution C and mixed uniformly to form the solution D.6. The preparation method according to claim 1 , wherein the centrifuging is performed twice.7. ...

Image processing method, apparatus, and storage medium

The present disclosure discloses an image processing method, apparatus, and a non-transitory computer readable medium. The method can includes: acquiring a three-dimensional (3D) model and original texture images of an object, wherein the original texture images are acquired by an imaging device; determining a mapping relationship between the 3D model and the original texture images of the object; determining, among the original texture images, a subset of texture images associated with a first perspective of the imaging device; splicing the subset of texture images into a spliced texture image corresponding to the first perspective; and mapping the spliced texture image to the 3D model according to the mapping relationship.

Data Processing Method, Apparatus, System and Storage Media

A data processing method includes determining feature points in first point cloud data and feature points in second point cloud data, the first point cloud data and the second point cloud data being used for representing different parts of a same object; performing feature matching between the first point cloud data and the second point cloud data to determine feature points satisfying feature matching condition(s) between the first point cloud data and the second point cloud data, and form a plurality of feature point pairs; determining a transformation matrix in which spatial distances between feature points in one or more feature point pairs of the plurality of feature point pairs conform to a proximity condition; and performing coordinate transformation on the one or more feature point pairs using the transformation matrix to register the first point cloud data with the second point cloud data. 1. A method implemented by one or more computing devices , the method comprising:determining feature points in first point cloud data and feature points in second point cloud data, the first point cloud data and the second point cloud data being used for representing different parts of a same object;performing feature matching between the first point cloud data and the second point cloud data to determine feature points that satisfy a feature matching condition between the first point cloud data and the second point cloud data, and form a plurality of feature point pairs;for one or more feature point pairs of the plurality of feature point pairs, determining a transformation matrix in which a spatial distance between feature points in the feature point pairs conform to a proximity condition; andperforming coordinate transformation on the one or more feature point pairs of the plurality of feature point pairs using the transformation matrix to register the first point cloud data with the second point cloud data.2. The method of claim 1 , wherein determining the feature ...

COMPOSITION FOR TREATMENT OR PREVENTION OF ERECTILE DYSFUNCTION INCLUDING DKK2 PROTEIN OR DKK2 GENE THEREOF AND USE OF THE COMPOSITION

A pharmaceutical composition for regenerating an endothelial cell which includes as an active ingredient a DKK2 protein or a polynucleotide encoding the DKK2 protein, a pharmaceutical composition for preventing or treating erectile dysfunction, a method of regenerating an endothelial cell of a subject and a method of preventing or treating erectile dysfunction of a subject and which treat or prevent erectile dysfunction in a subject. 1. A pharmaceutical composition for regenerating an endothelial cell , the pharmaceutical composition comprising a DKK2 protein or a polynucleotide encoding the DKK2 protein as an active ingredient.2. The pharmaceutical composition of claim 1 , wherein the endothelial cell is a corpus cavernosum endothelial cell or a penile vascular endothelial cell.3. A pharmaceutical composition for preventing or treating erectile dysfunction claim 1 , the pharmaceutical composition comprising a DKK2 protein or a polynucleotide encoding the DKK2 protein as an active ingredient.4. The pharmaceutical composition of claim 3 , further comprising a pharmaceutically acceptable carrier.5. The pharmaceutical composition of claim 3 , wherein the pharmaceutical composition increases an intracavernous pressure.6. The pharmaceutical composition of claim 3 , wherein the pharmaceutical composition increases a level of an endothelial cell-specific protein in an endothelial cell.7. The pharmaceutical composition of claim 6 , wherein the endothelial cell-specific protein is platelet/endothelial cell adhesion molecule-1 (PECAM-1).8. The pharmaceutical composition of claim 3 , wherein the erectile dysfunction is caused by cavernous (penile) endothelial dysfunction.9. The pharmaceutical composition of claim 8 , wherein the penile endothelial cell dysfunction is caused by at least one of dyslipidemia including hypercholesterolemia and diabetes mellitus.10. The pharmaceutical composition of claim 3 , wherein the pharmaceutical composition is in the form of a formulation ...

MIGRATION OF APPLICATIONS TO A COMPUTING ENVIRONMENT

A method of migrating an application to a computing environment including: obtaining a service topology and a deployment sequence from an existing application; choosing a deployment preference, each deployment preference containing factors and a weight of each of the factors; outputting the service topology and the deployment preference; reading service records for the chosen service topology and deployment preference from a repository, the service records containing a value score and weight mapping information of each factor of each service record; performing a mock conversion of migrating the application to the computing environment; adjusting the value score and weight mapping of the service records according to the results of the mock conversion; responsive to a user choosing one service record representing a solution for migrating the application to the computing environment, generating files for the solution; and deploying the solution into the computing environment using the files. 1. A computer-implemented method of migrating an application from one computing environment to a second computing environment comprising:obtaining a service topology and a deployment sequence from an existing application;choosing a deployment preference selected from the group consisting of a performance dimension, a cost dimension, a security dimension and an ease of migration dimension, each dimension containing factors and a weight of each of the factors;outputting the service topology and the deployment preference;reading service records for the chosen service topology and deployment preference from a repository, the service records containing a value score and weight mapping information of each factor of each service record;performing a mock conversion of migrating the application to the second computing environment according to the service topology and deployment preference of the service records;adjusting the value score and weight mapping of the service records according to ...

System and Method of Product Selection for Promotional Display

A method for selecting a product to display on a webpage of an e-commerce website. Online user behavior data associated with a plurality of merchants selling products on the webpage is obtained. The behavior data is user actions performed online with respect to merchants. The behavior data is analyzed to determine a most relevant group of the users for each merchant. The most relevant group is compared to a targeted group of the webpage to determine a rate of overlap for each merchant. The rate of overlap represents a percentage of the most relevant group that matches the targeted group. A top merchant is selected based on the highest rate of overlap. A top product being sold by the top merchant is selected to display on the webpage. The top product is displayed on the webpage of the e-commerce web site to an end user. 1. A computer-implemented method for selecting an ideal product to display on a webpage of an e-commerce website , acts of the method comprising:obtaining online user behavior data of users associated with a plurality of merchants selling products on the webpage, each merchant being associated with a pool of users, and the behavior data including digital information of actions performed online by the users in the respective pools of users with respect to individual merchants;analyzing the behavior data for each merchant to determine a most relevant group of the users within each pool of users for each merchant;comparing respective profiles of the users of the most relevant group to a profile of a targeted user group of the webpage to determine a rate of overlap for each merchant, the rate of overlap representing a percentage of the users of the most relevant group having a profile that matches the profile of the targeted user group;selecting a top merchant from among the plurality of merchants based on a highest rate of overlap;selecting a top product being sold by the top merchant to display on the webpage; andcausing display of, on the webpage of ...

System and method for traffic control in online platform

Systems and methods are provided for online traffic dynamical adjustment and optimization. A such system may comprise one or more servers configured to monitor an incoming traffic volume for visiting an online platform, determine one or more unit traffic values of the monitored incoming traffic volume to the online platform, and monitor one or more subsets of the incoming traffic volume for respectively visiting one or more sub-platforms of the online platform.

Prediction method, apparatus, and system for performing an image search

A prediction method, apparatus, and system for performing an image search is disclosed in the disclosure. In one embodiment, a method comprises: performing training in which domain adaptation learning is performed by using a source domain model to obtain a target domain model, wherein the source domain model comprises at least two network models, and the network models respectively correspond to different commodity categories; and setting an image under search and sample sets of commodities of a plurality of categories as input parameters for the target domain model to obtain a prediction result corresponding to the image. The disclosure solves the technical problem of inaccurate prediction in the process of using category prediction methods to perform a prediction on an image in current systems.

INTELLIGENT ORCHESTRATION AND FLEXIBLE SCALE USING CONTAINERS FOR APPLICATION DEPLOYMENT AND ELASTIC SERVICE

Orchestrating flexible scaling for large scale deployment and elastic service of an application of a service model with an orchestration. The orchestration: analyzes input received from a user to generate feature references and a service definition of the application of the service model to be generated, extracts key features of the application of the service model from the feature references; analyzing the key features and service definition to generate a deployment configuration file with service dependencies required; and comparing the deployment configuration file to known strategy patterns. When a strategy pattern is not found that matches, analyzing the service definition and deployment configuration file to determine an applicable strategy pattern. The determined strategy pattern analyzed to determine a deployment strategy and entry point with deployment order according to monitored resource usage of the service model and deploying the application of the service model according to the deployment strategy. 1. A method of orchestrating flexible scaling for large scale deployment and elastic service of an application of a service model with an orchestration comprising at least a semantics analysis engine , a container deployment engine , and a strategy repository , comprising the steps of:analyzing input received from a user to generate feature references and a service definition of the application of the service model to be generated;extracting key features of the application of the service model from the feature references;analyzing the key features and service definition to generate a deployment configuration file with service dependencies required by the application of the service model specified by the user;comparing the deployment configuration file to known strategy patterns;when a strategy pattern is not found that matches the service definition and the deployment configuration file, analyzing the service definition and deployment configuration file to ...

Error Correction in GPS Signal

Methods and systems for correcting an error of a GPS signal are provided. The method includes receiving a request for positioning service from a computing device at a location; estimating a Total Electron Content (vTEC) value associated with the location of the object based at least in part on a plurality of vTEC values of a plurality of ground stations equipped with a plurality of GPS receivers, the vTEC value being estimated based on an estimator that is trained using a filter-reweight-retrain robust algorithm; and sending information of the estimated vTEC value to the computing device to allow the computing device to correct an error of a GPS signal received by the computing device, the error of the GPS signal being associated with an ionospheric delay. 1. A method implemented by a system , the method comprising:receiving a request for positioning service from a computing device at a location;estimating a Total Electron Content (vTEC) value associated with the location of the object based at least in part on a plurality of vTEC values of a plurality of ground stations equipped with a plurality of GPS receivers, the vTEC value being estimated based on an estimator that is trained using a filter-reweight-retrain robust algorithm; andsending information of the estimated vTEC value to the computing device to allow the computing device to correct an error of a GPS signal received by the computing device, the error of the GPS signal being associated with an ionospheric delay.2. The method of claim 1 , wherein the filter-reweight-retrain robust algorithm comprises:training the estimator based on an objective function using a first dataset, the first dataset comprising data points that pass a particular test;applying the estimator to a second dataset to obtain residual errors associated with data points of the second dataset, the data points of the second dataset comprising data points that fail the particular test with or without the first dataset;obtaining a third ...

Method and system for cloud application and service integration using pattern-based discovery

A method of migrating an on-premises application that is developed for an on-premises environment to a cloud computing environment includes receiving, by a build server, application code of the on-premises application; and analyzing, by the build server, the application code of the on-premises application to identify a pattern in the on-premises application based on an application server service to be used by the on-premises software application in the cloud computing environment and an application platform service to be used by the on-premises application in the cloud computing environment. The application server service and the application platform service are part of a platform as a service (PaaS) layer of the cloud computing environment. The method includes generating, by the build server, data, based on the identified pattern, to configure the PaaS layer for migration of the on-premises application to the cloud computing environment.

Holding device, electronic device assembly, and electronic apparatus

The disclosure relates to a holding device and an electronic device assembly and an electronic apparatus having the same. The holding device is able to hold an insertion device. At least one holding structure of the holding device includes a first holding portion and a second holding portion, and the second holding portion is located closer to the insertion opening than the first holding portion. The first holding portion is configured to hold the insertion device at an installed position, and the second holding portion is configured to hold the insertion device at a non-installed position.

AUDIO PROCESSING DEVICE AND METHOD

An audio processing device that includes a first ADC, a second ADC, a register and a processing circuit is provided. The processing circuit executes a first audio application program corresponding to a first analog input audio stream and assigns the first analog input audio stream to the first ADC. When the processing circuit identifies that a second audio application program also corresponds to the first analog input audio stream, the processing circuit control the first ADC to process the first analog input audio stream. When second audio application program corresponds to a second analog input audio stream, the processing circuit assigns the second analog input audio stream to the second ADC for processing such that the first and the second ADCs process the first and the second analog input audio stream respectively. 1. An audio processing device comprising:a first analog-to-digital converter (ADC);a second ADC;a register; anda processing circuit configured to execute a first audio application program corresponding to a first analog input audio stream, configured to identify that the first analog input audio stream is from an audio source and configured to assign the first analog input audio stream to the first ADC;wherein when the processing circuit executes a second audio application program and identifies that the second audio application program also corresponds to the first analog input audio stream, the processing circuit is configured to control the first ADC to process the first analog input audio stream that corresponds to both the second audio application program and the first audio application program; andwhen the second audio application program corresponds to a second analog input audio stream that is not generated from the audio source, the processing circuit is configured to assign the second analog input audio stream to the second ADC for processing, such that the first ADC processes the first analog input audio stream and the second ADC processes ...

DETECTION DEVICE AND MANUFACTURING METHOD THEREOF

A detection device includes: a metal body having a plurality of main vias, a plurality of main through holes with insulators formed on the hole walls of the main vias, and a plurality of connecting elements disposed in the main through holes. Therefore, when testing a chip with I/O pins of high density with the detection device, the connecting elements contact the insulator only, without contacting the hole walls of the main vias, and the problem of short circuits can be avoided. A method of forming a detection device is also provided. 1. A detection device , comprising:a body having a base, a covering member stacked on the base, a first side, a second side opposing the first side, and a plurality of main vias being in communication with the first side and the second side and penetrating the base and the covering member, each of the main vias having a flat straight hole wall;a plurality of insulators formed on the flat straight hole walls of the main vias and free from filling the main vias completely with a plurality of main through holes formed in the body, each of the main through holes having an active region being in communication with at least one of the first side and the second side and disposed on at least one of the base and the covering member, each of the main through holes having a step-shaped hole wall at the active region; anda plurality of connecting elements disposed in the main through holes and exposed from at least one of the first side and the second side of the body,wherein the active region is wider than the connecting element.2. The detection device of claim 1 , wherein the base is made of a conductive material.3. The detection device of claim 1 , wherein the covering member is made of a conductive material.4. The detection device of claim 1 , wherein the active region comprises a plurality of hole portions being in communication with one another claim 1 , and wherein the outermost one of the hole portions being in communication with at least ...

Detection device and manufacturing method thereof

一種檢測裝置，係包括：具有複數主通孔之金屬本體、形成於該複數主通孔壁面上之絕緣體以構成複數主穿孔以及穿設於該複數主穿孔中之複數導接元件，俾於該檢測裝置用於測試高密度I/O接腳的晶片時，該導接元件僅會接觸該絕緣體而不會接觸該主通孔之孔壁，因而可有效避免發生短路之問題。本發明復提供一種檢測裝置之製法。

Syringe with retractable needle

The present invention provides a retractable safety syringe, which comprises a barrel (10), a sleeve (40), a connector (30), a plunger (20) and a standard needle. The barrel has the sleeve fitted at the front end. The connector is fitted in the sleeve and connected to the standard needle. The plunger is fitted in the rear lumen of the barrel for delivering fluid and retracting the connector with the standard needle into the barrel. The sleeve has threads on its inner surface. The connector is formed integrally by a cone-shaped cylinder and a tub-body, wherein the tub-body can be engaged with the plunger so as to retract the standard needle with the connector into the barrel by pulling the plunger. In the present invention, the barrel, the sleeve and the connector are separated.

Atomizing device with negative pressure structure

Electronic device having multifunctional network interface port

An electronic device includes a network interface port, a processing unit, a network card, a serial interface, and a microchip. The network interface port connects to a debugging host or connects to an external network. The processing unit is connected to the network interface port. The network card is connected to the processing unit. The microchip is connected to the processing unit through the serial interface. The processing unit determines whether the network interface port is connected to the debugging host or connected to the external network, and selectively connects the network card or the serial interface to the network interface port according to the determination.

The detachable light emitting diode structure

Heat dissipation device of LED

Antenna Assembly

An antenna module that includes two directional antennae arranged in a back-to-back manner, and a converter. The converter realizes conversion between an omnidirectional antenna mode and a directional antenna mode by switching on two directional antennae simultaneously or by switching on one of the directional antennas. Alternatively, the antenna module includes a horizontal polarization antenna, a vertical polarization antenna and a converter, where the converter provides the conversion between the horizontal polarization antenna mode and the vertical polarization antenna mode by switching on the horizontal polarization antenna or the vertical polarization antenna.

Housing of portable electronic device and method for making the same

A portable electronic device includes A portable electronic device includes a base, an antenna radiator, an outer layer, and at least one conductive contact. The antenna radiator formed on the base, the antenna radiator is made by injection molding from a mixture of materials selected from a group consisting of thermoplastic, organic filling substances, and conductive small particle sized material. The antenna radiator is sandwiched between the base and the outer layer. One end of each conductive contact is electrically connected to the antenna radiator, and the other end of the each conductive contact is exposed.

Hydrogels based on polymers of dextran tyramine and tyramine conjugates of natural polymers

The invention relates to composition comprising a dextran-tyramine conjugate and a conjugate selected from the group consisting of chondroitin sulphate-tyramine, collagen-tyramine, chitosan-tyramine, chitosan-phloretic acid, gelatine-tyramine, heparan sulphate-tyramine, keratin sulphate tyramine, hyaluronic acid-tyramine and heparin-tyramine.

Electronic device, storage medium and method for validating speed of a fan thereof

In a method for validating speed of a fan of an electronic device, different speeds of the fan are set for validation. The method controls the fan to operate under each of the set speeds in turn, and controls a camera device to continuously capture images of the fan with a shutter speed of the camera device corresponding to the set speed. The images are transmitted to a comparison unit to be analyzed for sameness and clarity. The fan is determined to work abnormally if not all the images are sameness or if at least one image is unclear, and the fan is determined to work normally if all the images are sameness or clear. A validation report is generated to indicate whether the fan is normal or abnormal according to the determination.

Child and mother type ball compression ejection fuel-and-energy saving tire and movable assembly for child tire and mother tire

Uniform aspect ratio silver nanowires preparation method

A preparation method for silver nanowires with a uniform aspect ratio, including: dissolving at a certain temperature silver nitrate in glycerol to get a solution A; dissolving at a certain temperature polyvinylpyrrolidone (PVP) in glycerol to get a solution B; mixing uniformly the solution A and the solution B to form a solution C; then, adding a certain amount of a medium into the solution C and mixing uniformly to form a solution D, finally, transferring the solution D into a reaction kettle, putting the reaction kettle into an oven with a set temperature, and ending the reaction after a certain time of reaction. The reactants are centrifuged twice to obtain precipitated silver nanowires. With the addition of the medium, the method can improve the moving speed of ions in a reaction solution, and obtain the silver nanowires with a uniform aspect ratio and nodes. The preparation method is simple and easy to operate, experimentally stable, and suitable for industrial production.

Phase lock loop circuit based adjustment of a measurement time window in an optical measurement system

An exemplary system includes a photodetector configured to generate a photodetector output pulse when the photodetector detects a photon from a light pulse having a light pulse time period, a TDC configured to monitor for the occurrence of the photodetector output pulse during a measurement time window that is within and shorter in duration than the light pulse time period, a PLL circuit for the TDC, and a precision timing circuit connected to the PLL circuit and configured to adjust, based on at least one signal generated within the PLL circuit, a temporal position of the measurement time window within the light pulse time period.

Mask

The mask includes: a mask body provided with a shielding part configured to shield an IC region between two adjacent panels sharing a base substrate; and the shielding part includes a reinforcing portion and a thinned portion, and the thinned portion has an accommodating recess with an opening facing the base substrate to be configured to accommodate a driving IC in the IC region.

生理訊號回饋供氧控制裝置

智能包

Decoration of Buddhist statue

Method and system for cloud application and service integration using pattern-based discovery

A method of migrating an on-premises application that is developed for an on-premises environment to a cloud computing environment includes receiving, by a build server, application code of the on-premises application; and analyzing, by the build server, the application code of the on-premises application to identify a pattern in the on-premises application based on an application server service to be used by the on-premises software application in the cloud computing environment and an application platform service to be used by the on-premises application in the cloud computing environment. The application server service and the application platform service are part of a platform as a service (PaaS) layer of the cloud computing environment. The method includes generating, by the build server, data, based on the identified pattern, to configure the PaaS layer for migration of the on-premises application to the cloud computing environment.

Fast-gated photodetector architectures

An exemplary photodetector includes a SPAD and a capacitor. The capacitor is configured to be charged, while the SPAD is in a disarmed state, with a bias voltage by a voltage source. The capacitor is further configured to supply, when the SPAD is put in an armed state, the bias voltage to an output node of the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD.

Neural network processing method, apparatus, device and computer readable storage media

A method, an apparatus, a device and a computer readable storage media for neural network processing are disclosed. The method includes constructing a training function having a constraint for a neural network; and solving a constrained optimization based on the training function to obtain connection weights of the neural network. The neural network processing method, apparatus, device and computer readable storage media of the embodiments of the present disclosure model a problem of solving connection weights of a neural network from the perspective of an optimization problem, and can effectively find a solution for the problem of solving the connection weights of the neural network, thus being able to improve the speed of training of the neural network.

Computing device and method for controlling access to driver programs

A computing device and a method for controlling access to driver programs obtains a first system time at the time that an application uses a CTL_CODE to access a driver program. The first system time and the CTL_CODE is encrypted to generate an encrypted CTL_CODE which is then sent to the driver program. The encrypted CTL_CODE is decrypted to obtain the first system time and the CTL_CODE therein. A second system time at the time that the driver program receives the encrypted CTL_CODE is obtained and compared with the first system time. Access to the driver program is allowed if a difference between the first system time and the second system time falls within a predetermined range, and access to the driver program is forbidden if the difference is beyond the predetermined range.

Oligonucleotides

The present invention relates to splice-switching oligonucleotides (SSOs) capable of altering the slicing of a pre-mRNA encoding a variant of the SLC25A13 gene, as well as the use of the same SSOs for treating citrin deficiency. In an embodiment, a SSO that binds to a site within a target region present on a pre-mRNA transcript of the SLC25A13 gene, wherein the binding of the SSO induces the exclusion of SLC25A13-PE5 from a mature mRNA transcript of the SLC25A13 gene. In another embodiment, the target region having at least 95% sequence identity to SEQ ID NO: 28.

Data processing method, apparatus, system and storage media

A data processing method includes determining feature points in first point cloud data and feature points in second point cloud data, the first point cloud data and the second point cloud data being used for representing different parts of a same object; performing feature matching between the first point cloud data and the second point cloud data to determine feature points satisfying feature matching condition(s) between the first point cloud data and the second point cloud data, and form a plurality of feature point pairs; determining a transformation matrix in which spatial distances between feature points in one or more feature point pairs of the plurality of feature point pairs conform to a proximity condition; and performing coordinate transformation on the one or more feature point pairs using the transformation matrix to register the first point cloud data with the second point cloud data.

點滴針固定裝置

形變檢測裝置

本發明提供一種形變檢測裝置，用以檢測一受測裝置的金屬殼體是否變形，該形變檢測裝置包括：一檢測平台；複數撐柱，置於該檢測平台，將該受測裝置支撐於一懸空的水平面；複數個導電量塊，分散於該受測裝置下方並置於該檢測平台；一電池，其正極或負極中一者耦接至該受測裝置的該金屬殼體，正極或負極的另一者耦接至該等導電量塊；以及一報知裝置，與該電池串聯連接，當該等導電量塊中任一者接觸該受測裝置的該金屬殼體時報知。

Oral dosage formulation containing both immediate-release and sustained-release drugs for treating ng neurodegenerative disorders

Oral dosage formulation containing both immediate-release and sustained-release drugs for treating neurodegenerative disorders

Disclosed is an oral dosage formulation containing both immediate-release and sustained release drugs for treating neurodegenerative disorders. The immediate-release drug is an acetylcholinesterase inhibitor (AChEl) with a dissolution rate of releasing more than 80% of the AChEl within 60 min and the sustained-release drug is memantine with a dissolution rate of releasing more than 80% of memantine within 12 hours.

Systems and methods for image-to-video re-identification

A computer-implemented method includes: obtaining a model trained based at least on knowledge distillation between a teacher network and a student network according to a modified triplet loss; obtaining an image and a plurality of videos; feeding the image and the plurality of videos to the model to obtain one or more first features of the image and one or more second features of each of the plurality of videos; and determining one or more of the plurality of videos that match the image according to the one or more first features and the one or more second features.

Hosing for electronic device and method for making same

Multi-function folding chair structure

Improved press die blade of thermal electrical welding machine

被動式窗型能量轉換與換氣裝置

本發明係有關於一種被動式窗型能量轉換與換氣裝置，其至少包括有一排風道、一進風道、至少一水泵及一控制器，其中該排風道設有一空氣預冷熱交換器、一水蒸發器、一室外側水熱交換器及一室外側風扇馬達，而該進風道設有一室內側風扇馬達及一室內側水熱交換器，上述各組件間經由複數連管的連接及該水泵的輸送，以構成一水循環系統，並受該控制器的控制，且在沒有壓縮機作為動力源的情況下，室內排出之空氣先經過該空氣預冷熱交換器的預冷後，再透過該水蒸發器的水蒸發製冷，會產生能量轉換與換氣，以使該水循環系統中的循環水降溫，同時室內排出之空氣獲得二次降溫效果，並在空氣通過該室外側水熱交換器進行熱交換後，自該室外側水熱交換器所流出之循環水，在進入該室內側水熱交換器時，其水溫係接近室內側空氣之露點溫度，故而當進氣通過該室內側水熱交換器並進行熱交換後，能產生一低溫且新鮮的空氣，以供應室內之所需，做到被動式節能及降低廢熱排放之污染者。

垂直式探針單元及其支撐結構與支撐結構製法

一種垂直式探針單元主要係提供具有矩形穿孔的支撐結構以供探針穿設，前述支撐結構包含一支撐板、複數第一凹槽與複數第二凹槽，其中，支撐板是選擇以不可導電材質製成具有一板厚的支撐體，第一凹槽與第二凹槽分別設置於支撐板的頂、底面，且彼此以垂直向交錯設置，特別的是，第一凹槽與第二凹槽的槽深之和不小於該支撐板的板厚，藉此以於第一凹槽與第二凹槽的每一交錯處皆形成有一個不可導電的矩形穿孔。而用以製作凹槽的方式，係採機械加工之圓盤鋸為之。

Fuel-efficient tire with primary-secondary sphere extrusion and ejection

Method of brazing titanium alloy to stainless steel