Method for copy protecting a record carrier, copy protected record carrier and means for detecting access control information

A method for copy protecting a record carrier is disclosed, in which method the copy protected record carriers are provided with a pattern of logical errors which cannot be corrected by the error correcting rules predefined for said record carrier. The pattern of logical errors represents access control information. The logical errors are generated during decoding the bit sequence read from the record carrier. Bit errors may be positioned in the bit sequence so as to counteract de-interleaving which is part of an error decoding process in a reading device and accumulate in error words which are uncorrectable. Also a method for detecting access control information and a retrieval arrangement are disclosed, which retrieval arrangement serves to detect the access control information by selecting at least one error location, but not all error locations on the record carrier, and verifying the presence of an error by reading the selected error location via the reading means.

Process and method for recovery of halogens

An apparatus for the recovery of a halogen or pseudohalogens from a halide compound in solution; wherein the apparatus includes an electrochemical cell including, an electrode assembly including at least a first and second electrodes in communication with a controller for providing a current to at least two of the electrodes; wherein, upon delivery of a predetermined voltage, the halide compound is oxidised at one or more of the electrodes to form a halogen corresponding to the halide in solution whereupon the halogen is deposited on said one or more electrode upon completion of oxidation.

EXTREMITY IMAGING APPARATUS FOR CONE BEAM COMPUTED TOMOGRAPHY

An apparatus for cone beam computed tomography can include a support structure, a scanner assembly coupled to the support structure for controlled movement in at least x, y and z orientations, the scanner assembly can include a DR detector configured to move along at least a portion of a detector path that extends at least partially around a scan volume with a distance D that is sufficiently long to allow the scan volume to be positioned within the detector path; a radiation source configured to move along at least a portion of a source path outside the detector path, the source path having a distance D greater than the distance D, the distance D being sufficiently long to allow adequate radiation exposure of the scan volume for an image capture by the detector; and a first gap in the detector path. 1. An imaging apparatus for cone beam computed tomography imaging of an extremity of a patient , the apparatus comprising:a support structure that includes a support column;a vertical translation element for positioning in a height direction to a height position along the support column,a rigid forked support arm that is configured to extend between a first end and a pair of extensions, where the first end of the rigid forked support arm is rotatably coupled to the vertical translation element, where the rotation of the first end of the rigid forked support arm is about an α axis that intersects the vertical translation element; and a scanner that comprises a radiation source energizable to direct radiation toward a detector during imaging operations of the imaging apparatus, and', 'a scanner housing that encloses at least a portion of the scanner, where the radiation source and detector are configured to rotate at least 180 degrees with a prescribed spatial relationship within the scanner housing, where the scanner housing is rotatably coupled between the pair of extensions of the rigid forked support arm to rotate about a 7 axis that is not parallel to the α axis., 'a ...

Firing delay for retrofit digital X-ray detector

A method and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installs a retrofit connection apparatus that adapts the x-ray imaging apparatus for use with the digital radiography receiver by forming a receiver interface channel for communicating signals to and from the digital radiography receiver, forming an operator interface channel for routing at least an input expose signal from an operator control to the connection apparatus and forming a generator interface channel for transmitting at least an output expose signal from the retrofit connection apparatus to an x-ray generator of the x-ray imaging apparatus. An input expose signal over the operator interface channel initiates a reset of the digital radiography receiver over the receiver interface channel before the output expose signal to the x-ray generator is transmitted over the generator interface channel.

Copy protection for transmission of information

It is proposed to copy protect data files for transmission by incorporating DSV data patterns, that is, data patterns which are difficult to encode without causing DSV problems, in the data files. The data in five audio streams and two video streams is placed, by way of encoders ( 10 ) and a multiplexer ( 12 ) into a stream of blocks of encoded data in the MPEG file format ( 14 ). In this format, blocks of video data V are arranged alternately with blocks of audio data A and padding stream blocks P. DSV data patterns ( 16 ) are incorporated into the MPEG file ( 14 ) by way of an encoder ( 18 ) to produce the copy protected data file ( 15 ). The DSV data patterns ( 16 ) are incorporated into locations within the MPEG file which have no data content such as padding stream blocks P and/or into unused audio data blocks A. The DSV data patterns incorporated within the data blocks fed either to a monitor or to a reproduction system will not interfere with the reproduction such that unfettered ...

HEAD AND NECK IMAGER

An imaging system comprises a digital radiation detector and radiation source. A detector transport moves the detector along at least a portion of a first curved path and a radiation moves the source along at least a portion of a second curved source path. The detector is configured to travel at least a portion of the first curved path, and the source is configured to travel at least a portion of the second curved path. The detector is configured to obtain a plurality of 2D projection images over a range of scan angles for reconstructing a 3D volume image using the plurality 2D projection images. 1. An imaging system comprising:a digital radiation detector;{'b': '1', 'a detector transport to move the detector along at least a portion of a first curved path, the at least a portion of the first curved path extending at least partially around the head of a patient at a distance D from a central axis of the curved path;'}a radiation source; and{'b': 2', '1, 'a radiation transport to move the source along at least a portion of a second curved source path outside the first curved path, the second curved path extending at least partially around the head of the patient and having a distance D from the central axis greater than the distance D,'}{'b': '2', 'wherein the detector is configured to travel at least a portion of the first curved path, and the source is configured to travel at least a portion of the second curved path, wherein the distance D is sufficiently long to allow sufficient radiation exposure of the object for a CBCT image capture by the detector,'}wherein the detector is configured to obtain a plurality of 2D projection images over a range of image capture scan angles; anda processor to reconstruct a 3D volume using more than one of the plurality of 2D projection images.2. The system of claim 1 , wherein the radiation and detector transports each include a mechanism to independently move the source and detector further from claim 1 , or closer to claim 1 , ...

Enhanced light detector for computed radiography

A scanning apparatus for obtaining an image from a phosphor sheet has a cylindrical drum having an inner axis and having an inner surface that is concave with respect to the axis. A light collector is coupled to a transport mechanism that is actuable to translate the light collector along a direction parallel to the axis. The light collector has a beam generator with a light source and a rotatable beam deflector that is actuable to provide a rotating scanning beam. There are first and second cylindrical hoops circumferentially disposed about the axis and spaced apart from each other along the direction of the axis to define a slot aligned with the rotating scanning beam as it scans the phosphor sheet. At least one light detector is disposed to detect light stimulated from the phosphor sheet by the scanning beam.

Firing delay for retrofit digital X-ray detector

A method and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installs a retrofit connection apparatus that adapts the x-ray imaging apparatus for use with the digital radiography receiver by forming a receiver interface channel for communicating signals to and from the digital radiography receiver, forming an operator interface channel for routing at least an input expose signal from an operator control to the connection apparatus and forming a generator interface channel for transmitting at least an output expose signal from the retrofit connection apparatus to an x-ray generator of the x-ray imaging apparatus. An input expose signal over the operator interface channel initiates a reset of the digital radiography receiver over the receiver interface channel before the output expose signal to the x-ray generator is transmitted over the generator interface channel.

Portable digital radiography detector loss prevention

A method for managing a portable x-ray detector for an x-ray imaging apparatus registers at least one portable detector with a processor that is associated with the x-ray imaging apparatus. A generated signal is indicative of the location of the registered portable x-ray detector relative to the x-ray imaging apparatus. An alert indication is provided when the generated signal indicates separation of the registered portable x-ray detector from the x-ray imaging apparatus beyond a predetermined distance.

Method for associating a wireless detector with an imaging apparatus

A method for obtaining an x-ray image stores an association between a digital radiology receiver panel, a label that is applied to one or more surfaces of the digital radiology receiver panel, and an x-ray imaging room. A response to an operator instruction designates the digital radiology receiver panel having the stored association as an active digital radiology receiver panel in the x-ray imaging room. Instructions are transmitted wirelessly to the active digital radiology receiver panel. Image data is obtained from the active digital radiology receiver panel following exposure to x-ray radiation.

Firing delay for retrofit digital X-ray detector

A method and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installs a retrofit connection apparatus that adapts the x-ray imaging apparatus for use with the digital radiography receiver by forming a receiver interface channel for communicating signals to and from the digital radiography receiver, forming an operator interface channel for routing at least an input expose signal from an operator control to the connection apparatus and forming a generator interface channel for transmitting at least an output expose signal from the retrofit connection apparatus to an x-ray generator of the x-ray imaging apparatus. An input expose signal over the operator interface channel initiates a reset of the digital radiography receiver over the receiver interface channel before the output expose signal to the x-ray generator is transmitted over the generator interface channel.

FIRING DELAY FOR RETROFIT DIGITAL X-RAY DETECTOR

A method and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installs a retrofit connection apparatus that adapts the x-ray imaging apparatus for use with the digital radiography receiver by forming a receiver interface channel for communicating signals to and from the digital radiography receiver, forming an operator interface channel for routing at least an input expose signal from an operator control to the connection apparatus and forming a generator interface channel for transmitting at least an output expose signal from the retrofit connection apparatus to an x-ray generator of the x-ray imaging apparatus. An input expose signal over the operator interface channel initiates a reset of the digital radiography receiver over the receiver interface channel before the output expose signal to the x-ray generator is transmitted over the generator interface channel.

Positional control of flexible storage phosphor media during image scan

A storage phosphor reader. The reader comprises a first roller pair, a cylindrical scan platen, a guide member, and a holding member. The first roller pair transport a storage phosphor medium along a path in a first direction. The cylindrical scan platen supports the medium as it is scanned by a scanner. The guide member is disposed intermediate the first roller pair and the scan platen for guiding the medium to the scan platen. The holding member is disposed downstream of the scan platen for contacting the medium after it is scanned.

Firing delay for retrofit digital x-ray detector

A method and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installs a retrofit connection apparatus that adapts the x-ray imaging apparatus for use with the digital radiography receiver by forming a receiver interface channel for communicating signals to and from the digital radiography receiver, forming an operator interface channel for routing at least an input expose signal from an operator control to the connection apparatus and forming a sensor interface channel to receive at least an active x-ray emission signal from a sensor positioned operatively near an x-ray system of the x-ray imaging system of the type configured for film or computed radiography. An input expose signal over the operator interface channel can initiate a reset of the digital radiography receiver over the receiver interface channel.

Method for copy protecting a record carrier, copy protected record carrier and means for detecting access control information

Method for copy protecting a record carrier, copy protected record carrier and means for detecting access control information

A method for copy protecting a record carrier is disclosed, in which method the copy protected record carriers are provided with a pattern of logical errors which cannot be corrected by the error correcting rules predefined for said record carrier. The pattern of logical errors represents access control information. The logical errors are generated during decoding the bit sequence read from the record carrier. Bit errors may be positioned in the bit sequence so as to counteract de-interleaving which is part of an error decoding process in a reading device and accumulate in error words which are uncorrectable. Also a method for detecting access control information and a retrieval arrangement are disclosed, which retrieval arrangement serves to detect the access control information by selecting at least one error location, but not all error locations on the record carrier, and verifying the presence of an error by reading the selected error location via the reading means.

EXTREMITY IMAGING APPARATUS FOR CONE BEAM COMPUTED TOMOGRAPHY

An apparatus for cone beam computed tomography can include a support structure, a scanner assembly coupled to the support structure for controlled movement in at least x, y and z orientations, the scanner assembly can include a DR detector configured to move along at least a portion of a detector path that extends at least partially around a scan volume with a distance D that is sufficiently long to allow the scan volume to be positioned within the detector path; a radiation source configured to move along at least a portion of a source path outside the detector path, the source path having a distance D greater than the distance D, the distance D being sufficiently long to allow adequate radiation exposure of the scan volume for an image capture by the detector; and a first gap in the detector path. 1. An imaging apparatus for cone beam computed tomography imaging of an extremity of a patient , the apparatus comprising:a support structure that includes a support column;a vertical translation element for positioning in a height direction to a height position along the support column,a rigid forked support arm that is configured to extend between a first end and a pair of extensions, where the first end of the rigid forked support arm is rotatably coupled to the vertical translation element, where the rotation of the first end of the rigid forked support arm is about an α axis that intersects the vertical translation element; and a scanner that comprises a radiation source energizable to direct radiation toward a detector during imaging operations of the imaging apparatus, and', 'a scanner housing that encloses at least a portion of the scanner, where the radiation source and detector are configured to rotate at least 180 degrees with a prescribed spatial relationship within the scanner housing, where the scanner housing is rotatably coupled between the pair of extensions of the rigid forked support arm to rotate about a γ axis that is not parallel to the α axis., 'a ...

Interposer mechanism for a retrofit digital X-ray detector and methods of using the same

Methods and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installed as a retrofit connection apparatus to adapt the x-ray imaging apparatus for use with the digital radiography receiver by using a receiver interface channel to communicating signals to and from the digital radiography receiver, using an operator actuated switch cover for at least an expose operator action of a manual operator control that is configured to generate at least an input expose signal, where the operator actuated switch cover is configured to resist the generation of the expose signal by the expose operator action of the manual operator control until a reset of the DR receiver is initiated and acknowledged.

Formatting of optical discs

Conventionally, multiple session discs are provided with backward going pointers (P). It is now disclosed that it is possible to navigate a multiple session disc without the provision of such pointers (P). A multiple session optical disc which also acts to copy protect audio data has a first audio session (40) and a second data session ( 60 ). The data session ( 60 ) has a Lead-In (LI), a program area ( 32 ), and a Lead-Out (LO). It also has a primary volume descriptor ( 50 ) containing control data identifying the files within the data session but there is no pointer from the Lead-Out (LO) of the session ( 60 ) to any part of the program area ( 32 ). The audio session ( 40 ) has a program area ( 32 ) extending between the Lead-in (LI) and the Lead-Out (LO). To copy protect the audio information, the audio data ( 40 ) is hidden from a data reader. For example, the Lead-In (LI) to the audio session ( 40 ) and the Lead-In (LI) to the data session ( 60 ) may each erroneously identify the data ...

METHOD FOR ASSOCIATING A WIRELESS DETECTOR WITH AN IMAGING APPARATUS

A method for obtaining an x-ray image stores an association between a digital radiology receiver panel, a label that is applied to one or more surfaces of the digital radiology receiver panel, and an x-ray imaging room. A response to an operator instruction designates the digital radiology receiver panel having the stored association as an active digital radiology receiver panel in the x-ray imaging room. Instructions are transmitted wirelessly to the active digital radiology receiver panel. Image data is obtained from the active digital radiology receiver panel following exposure to x-ray radiation.

ENHANCED LIGHT DETECTOR FOR COMPUTED RADIOGRAPHY

A scanning apparatus for obtaining an image from a phosphor sheet has a cylindrical drum having an inner axis and having an inner surface that is concave with respect to the axis. A light collector is coupled to a transport mechanism that is actuable to translate the light collector along a direction parallel to the axis. The light collector has a beam generator with a light source and a rotatable beam deflector that is actuable to provide a rotating scanning beam. There are first and second cylindrical hoops circumferentially disposed about the axis and spaced apart from each other along the direction of the axis to define a slot aligned with the rotating scanning beam as it scans the phosphor sheet. At least one light detector is disposed to detect light stimulated from the phosphor sheet by the scanning beam.

Decoupled alignment axis for fold mirror adjustment

A method of laser beam alignment in a laser scanning system comprising: providing an elongated planar mirror having left and right ends for directing a laser beam scan line to a scan line imaging region spaced from the mirror; detecting left and right spots of the laser beam scan line to determine whether the laser beam is aligned in the imaging region, and if it is not; first rotating the elongated mirror about a first axis extending along the scan line direction of the mirror until the right spot is detected; second rotating the mirror about a second axis located near the right end of the mirror, the second axis extending in the plane of the mirror at angle to the first axis until the left spot is detected.

FIRING DELAY FOR RETROFIT DIGITAL X-RAY DETECTOR

A method and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installs a retrofit connection apparatus that adapts the x-ray imaging apparatus for use with the digital radiography receiver by forming a receiver interface channel for communicating signals to and from the digital radiography receiver, forming an operator interface channel for routing at least an input expose signal from an operator control to the connection apparatus and forming a generator interface channel for transmitting at least an output expose signal from the retrofit connection apparatus to an x-ray generator of the x-ray imaging apparatus. An input expose signal over the operator interface channel initiates a reset of the digital radiography receiver over the receiver interface channel before the output expose signal to the x-ray generator is transmitted over the generator interface channel.

Firing delay for retrofit digital x-ray detector

A method and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installs a retrofit connection apparatus that adapts the x-ray imaging apparatus for use with the digital radiography receiver by forming a receiver interface channel for communicating signals to and from the digital radiography receiver, forming an operator interface channel for routing at least an input expose signal from an operator control to the connection apparatus and forming a generator interface channel for transmitting at least an output expose signal from the retrofit connection apparatus to an x-ray generator of the x-ray imaging apparatus. An input expose signal over the operator interface channel initiates a reset of the digital radiography receiver over the receiver interface channel before the output expose signal to the x-ray generator is transmitted over the generator interface channel.

FIRING DELAY FOR RETROFIT DIGITAL X-RAY DETECTOR

A method and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installs a retrofit connection apparatus that adapts the x-ray imaging apparatus for use with the digital radiography receiver by forming a receiver interface channel for communicating signals to and from the digital radiography receiver, forming an operator interface channel for routing at least an input expose signal from an operator control to the connection apparatus and forming a sensor interface channel to receive at least an active x-ray emission signal from a sensor positioned operatively near an x-ray system of the x-ray imaging system of the type configured for film or computed radiography. An input expose signal over the operator interface channel can initiate a reset of the digital radiography receiver over the receiver interface channel. 1. An apparatus for x-ray imaging configured to use a digital radiography receiver in an x-ray imaging system of a type configured for film or computed radiography , comprising:a generator interface channel to communicate with an x-ray system of an x-ray imaging system;an operator interface channel to communicate with an operator control to receive at least a first, preparation signal and a second, expose signal; 'a mode selector to select at least a first mode setting for image capture using a digital radiography receiver and a second mode setting for image capture using a removable film or computed radiography cassette,', 'an interface component installed as a retrofit to the x-ray imaging system, the interface component comprising,'}a receiver interface channel to communicate with a digital radiography receiver,a sensor positioned operatively near the x-ray system of the x-ray imaging system to output signals corresponding to detected x-ray exposure on or detected x-ray exposure off, anda programmed control logic processor that, when the first mode setting is selected, responds to the ...

INTERPOSER MECHANISM FOR A RETROFIT DIGITAL X-RAY DETECTOR AND METHODS OF USING THE SAME

Methods and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installed as a retrofit connection apparatus to adapt the x-ray imaging apparatus for use with the digital radiography receiver by using a receiver interface channel to communicating signals to and from the digital radiography receiver, using an operator actuated switch cover for at least an expose operator action of a manual operator control that is configured to generate at least an input expose signal, where the operator actuated switch cover is configured to resist the generation of the expose signal by the expose operator action of the manual operator control until a reset of the DR receiver is initiated and acknowledged. 1. A method for obtaining an image by using a digital radiography receiver in an x-ray imaging system of a type configured for film or computed radiography , where the x-ray imaging system including a manual operator control for generating at least an expose signal and a generator interface channel for transmitting the expose signal to an x-ray generator of the x-ray imaging system , the method comprising:providing a retrofit connection apparatus that adapts the x-ray imaging system for use with the digital radiography (DR) receiver by:forming a receiver interface channel for communicating signals to and from the DR receiver, andproviding an operator actuated switch cover for at least an expose operator action of the manual operator control;where in response to an operator control actuation for generating the expose signal by the expose operator action of the manual operator control, the operator actuated switch cover is configured to resist the generation of the expose signal by the expose operator action of the manual operator control until a reset of the DR receiver is initiated and acknowledged over the receiver interface channel; andtransmitting the expose signal to the x-ray generator over the generator ...

Method for copy protecting a record carrier, copy protected record carrier and means for detecting access control information

A method for copy protecting a record carrier using a pattern of logical errors which cannot be corrected by the error correcting rules predefined for the record carrier. The pattern of logical errors represents access control information. The logical errors are generated during decoding the bit sequence read from the record carrier. Bit errors may be positioned in the bit sequence so as to counteract de-interleaving which is part of an error decoding process in a reading device and accumulate in error words which are uncorrectable. Also a method for detecting access control information and a retrieval arrangement, which detects the access control information by selecting at least one error location, but not all error locations on the record carrier, and verifying the presence of an error by reading the selected error location via the reading means.

Method for associating a wireless detector with an imaging apparatus

A method for obtaining an x-ray image stores an association between a digital radiology receiver panel, a label that is applied to one or more surfaces of the digital radiology receiver panel, and an x-ray imaging room. A response to an operator instruction designates the digital radiology receiver panel having the stored association as an active digital radiology receiver panel in the x-ray imaging room. Instructions are transmitted wirelessly to the active digital radiology receiver panel. Image data is obtained from the active digital radiology receiver panel following exposure to x-ray radiation.

FIRING DELAY FOR RETROFIT DIGITAL X-RAY DETECTOR

A method and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installs a retrofit connection apparatus that adapts the x-ray imaging apparatus for use with the digital radiography receiver by forming a receiver interface channel for communicating signals to and from the digital radiography receiver, forming an operator interface channel for routing at least an input expose signal from an operator control to the connection apparatus and forming a sensor interface channel to receive at least an active x-ray emission signal from a sensor positioned operatively near an x-ray system of the x-ray imaging system of the type configured for film or computed radiography. An input expose signal over the operator interface channel can initiate a reset of the digital radiography receiver over the receiver interface channel. 1. An apparatus for x-ray imaging configured to use a digital radiography receiver in an x-ray imaging system of a type configured for film or computed radiography , comprising:a generator interface channel to communicate with an x-ray system of an x-ray imaging system;an operator interface channel to communicate with an operator control to receive at least a first, preparation signal and a second, expose signal; a mode selector to select at least a first mode setting for image capture using a digital radiography receiver and a second mode setting for image capture using a removable film or computed radiography cassette,', 'a receiver interface channel to communicate with a digital radiography receiver,', 'a sensor positioned operatively near the x-ray system of the x-ray imaging system to output signals corresponding to detected x-ray exposure on or detected x-ray exposure off, and', 'a programmed control logic processor that, when the first mode setting is selected, responds to the output signals from the sensor by outputting integration control signals for an integration of the ...

PORTABLE DIGITAL RADIOGRAPHY DETECTOR LOSS PREVENTION

A method for managing a portable x-ray detector for an x-ray imaging apparatus registers at least one portable detector with a processor that is associated with the x-ray imaging apparatus. A generated signal is indicative of the location of the registered portable x-ray detector relative to the x-ray imaging apparatus. An alert indication is provided when the generated signal indicates separation of the registered portable x-ray detector from the x-ray imaging apparatus beyond a predetermined distance. 1. A method for managing a portable x-ray detector for an x-ray imaging apparatus , the method comprising:registering at least one portable detector with a processor that is associated with the x-ray imaging apparatus;generating a signal that is indicative of the location of the registered portable x-ray detector relative to the x-ray imaging apparatus; andproviding an alert indication when the generated signal indicates separation of the registered portable x-ray detector from the x-ray imaging apparatus beyond a predetermined distance.2. The method of where the alert indication is an audible or visual indication.3. The method of wherein the distance is greater than 20 feet.4. The method of wherein the alert indication is provided by the registered portable radiographic detector or by an operator console.5. The method of where the alert indication is a message that displays at an operator console associated with the x-ray imaging apparatus.6. The method of wherein the x-ray imaging apparatus is a portable x-ray imaging apparatus.7. The method of claim 6 , where the alert indication is configured to occur as the portable x-ray imaging apparatus moves away from the at least one portable detector or where the alert indication is configured to occur as the at least one portable detector moves away from the portable x-ray imaging apparatus.8. A mobile x-ray radiography apparatus comprising:a moveable transport frame;an adjustable support structure coupled to the movable ...

EXTREMITY IMAGING APPARATUS FOR CONE BEAM COMPUTED TOMOGRAPHY

An apparatus for cone beam computed tomography can include a support structure, a scanner assembly coupled to the support structure for controlled movement in at least x, y and z orientations, the scanner assembly can include a DR detector configured to move along at least a portion of a detector path that extends at least partially around a scan volume with a distance D1 that is sufficiently long to allow the scan volume to be positioned within the detector path; a radiation source configured to move along at least a portion of a source path outside the detector path, the source path having a distance D2 greater than the distance D1, the distance D2 being sufficiently long to allow adequate radiation exposure of the scan volume for an image capture by the detector; and a first gap in the detector path. 120.-. (canceled)21. A method of using an imaging apparatus for obtaining tomography images of a first portion of a patient , the method comprising:positioning the first portion of the patient proximate an imaging axis in the imaging apparatus;revolving a source of radiation and a radiation detector each along a respective revolution path about the imaging axis to capture radiographic images of the portion of the patient;positioning a second portion of the patient outside the respective revolution paths;providing a patient support bar coupled to a portion of the imaging apparatus for use by the patient to provide support for the patient;energizing the radiation source to direct radiation through the portion of the patient proximate the imaging axis and toward the detector; andcapturing radiographic images of the portion of the patient at different angles in the detector.22. The method of claim 21 , further comprising providing a height adjustable patient support bar.23. The method of claim 21 , further comprising attaching the patient support bar to a stationary portion of the imaging apparatus and maintaining the patient support bar stationary during the step of ...

EXTREMITY IMAGING FOR ANIMALS

An apparatus captures radiographic images of an animal standing on the apparatus. A base portion supports the standing animal and a moveable x-ray source is mechanically attached to the base portion. A digital radiographic detector is also mechanically attached to the base portion, and the x-ray source and the detector are configured to capture a radiographic image or a scan of at least one of the legs of the animal. 1. An apparatus for radiographic imaging of an animal , the apparatus comprising:a support base to support an animal standing on its legs;a moveable x-ray source disposed within a source housing and mechanically attached to the support base; anda digital radiographic detector mechanically attached to the support base, wherein the source housing and the detector extend upward substantially perpendicular to, and above, a top surface of the support base, and wherein the x-ray source and the detector are configured to capture a radiographic image of at least one of the legs of the animal.2. The apparatus of claim 1 , wherein the source and the detector are configured to both revolve about said one of the legs of the animal while capturing a plurality of radiographic images of said one of the legs of the animal claim 1 , and wherein a radius of a revolution path of the source is greater than a radius of a revolution path of the detector.3. The apparatus of claim 2 , wherein the source and the detector are configured to both revolve about said one of the legs of the animal by a motor control that is programmed with a start position for revolving about said one of the legs of the animal and a stop position for revolving about said one of the legs of the animal.4. The apparatus of claim 2 , wherein at least one of the source and the detector include a mechanism for increasing and decreasing the radius of its revolution path claim 2 , the mechanism allowing at least one of the source and the detector to be moved further or closer to a central axis of the ...

Extremity imaging apparatus for cone beam computed tomography

An apparatus for cone beam computed tomography can include a support structure, a scanner assembly coupled to the support structure for controlled movement in at least x, y and z orientations, the scanner assembly can include a DR detector configured to move along at least a portion of a detector path that extends at least partially around a scan volume with a distance D 1 that is sufficiently long to allow the scan volume to be positioned within the detector path; a radiation source configured to move along at least a portion of a source path outside the detector path, the source path having a distance D 2 greater than the distance D 1 , the distance D 2 being sufficiently long to allow adequate radiation exposure of the scan volume for an image capture by the detector; and a first gap in the detector path.

EXTREMITY IMAGING APPARATUS FOR CONE BEAM COMPUTED TOMOGRAPHY

An apparatus for cone beam computed tomography can include a support structure, a scanner assembly coupled to the support structure for controlled movement in at least x, y and z orientations, the scanner assembly can include a DR detector configured to move along at least a portion of a detector path that extends at least partially around a scan volume with a distance D1 that is sufficiently long to allow the scan volume to be positioned within the detector path; a radiation source configured to move along at least a portion of a source path outside the detector path, the source path having a distance D2 greater than the distance D1, the distance D2 being sufficiently long to allow adequate radiation exposure of the scan volume for an image capture by the detector; and a first gap in the detector path. 1. A method for obtaining tomography images of a portion of a leg , the method comprising:positioning the portion of the leg to be imaged along a β axis in a scanner that comprises a radiation source and a detector that are disposed to orbit the β axis and atop a first weight sensor;positioning the leg to be imaged within the scanner and a leg that is placed on a second weight sensor that lies outside the scanner;displaying one or more values indicative of the weight distribution between the first and second weight sensors; andenergizing the radiation source to direct radiation through the portion of the leg being imaged and toward the detector and obtaining one or more images at different angles.2. The method of further comprising storing the one or more values indicative of the weight distribution with a subset or with each of the one or more images obtained.3. The method of further comprising disabling the radiation source according to the weight distribution.4. The method of further comprising positioning an insert beneath the left or right foot of the patient claim 1 , wherein positioning the leg to be imaged within the scanner comprises closing a door claim 1 , ...

EXTREMITY IMAGING APPARATUS

An x-ray imaging apparatus revolves a digital radiation detector and a radiation source about an imaging area where a subject is positioned to be imaged. A housing encloses the source and the detector, and includes an open housing gap to allow movement of the subject into the imaging area by moving through the open gap. A housing extension may be deployed to close the housing gap and to enclose the detector as it revolves. Shielding assemblies prevent exterior access into the housing. 1. An apparatus for cone beam computed tomographic imaging of an extremity of a patient , the apparatus comprising:a digital radiation detector and a radiation source each configured to revolve about a central imaging axis whereat at least a portion of the extremity of the patient is positioned to be imaged by the apparatus; anda C-shaped housing to enclose the source and the detector, the C-shaped housing having a housing gap and a housing extension attached to the housing, the housing extension configured to controllably extend from the housing across the housing gap to enclose the detector as it revolves about the central imaging axis.2. The apparatus of claim 1 , further comprising means for shielding an interior of the housing from exterior access proximate the housing extension when the housing extension is opened and closed.3. The apparatus of claim 2 , further comprising a hinge mechanism for moving the housing extension across the housing gap and simultaneously rotating the housing extension as it moves into a closed position across the housing gap and into a closed position.4. The apparatus of claim 3 , wherein the C-shaped housing comprises an opening to receive the housing extension when the housing extension is fully deployed claim 3 , and wherein the means for shielding includes a shield to cover the opening when the housing extension is not fully deployed.5. The apparatus of claim 2 , wherein the means for shielding comprises a fanned blade assembly that extends to ...

EXTREMITY IMAGING APPARATUS FOR CONE BEAM COMPUTED TOMOGRAPHY

An apparatus for cone beam computed tomography can include a support structure, a scanner assembly coupled to the support structure for controlled movement in at least x, y and z orientations, the scanner assembly can include a DR detector configured to move along at least a portion of a detector path that extends at least partially around a scan volume with a distance D that is sufficiently long to allow the scan volume to be positioned within the detector path; a radiation source configured to move along at least a portion of a source path outside the detector path, the source path having a distance D greater than the distance D, the distance D being sufficiently long to allow adequate radiation exposure of the scan volume for an image capture by the detector; and a first gap in the detector path. 117.-. (canceled)18. An apparatus for cone beam computed tomography imaging of a subject , the apparatus comprising:an x-ray source;an x-ray detector;a removable antiscatter grid attached proximate to the detector;a rotatable gantry attached to the source, the detector, and the grid to rotate the source, the detector and the grid about an imaging axis; anda C-shaped housing enclosing the source, the detector, the grid, and the gantry, the C-shaped housing comprising an end wall at each one of two terminal ends of the C-shaped housing,wherein one of the end walls comprises an opening large enough to manually detach and remove the grid therethrough when the gantry is rotated to a grid removal position.19. The apparatus of claim 18 , further comprising a substantially vertical support column attached to the gantry and configured to controllably move the gantry vertically to a desired height position.20. The apparatus of claim 19 , further comprising a rigid dual-forked support arm attached to the support column and to the gantry claim 19 , the dual-forked support arm configured to controllably rotate the gantry about an axis perpendicular to the vertical support column.21. ...

Extremity imaging apparatus for cone beam computed tomography

Extremity imaging apparatus

An x-ray imaging apparatus revolves a digital radiation detector and a radiation source about an imaging area where a subject is positioned to be imaged. A housing encloses the source and the detector, and includes an open housing gap to allow movement of the subject into the imaging area by moving through the open gap. A housing extension may be deployed to close the housing gap and to enclose the detector as it revolves. Shielding assemblies prevent exterior access into the housing.

Method for associating a wireless detector with an imaging apparatus

A method for obtaining an x-ray image stores an association between a digital radiology receiver panel, a label that is applied to one or more surfaces of the digital radiology receiver panel, and an x-ray imaging room. A response to an operator instruction designates the digital radiology receiver panel having the stored association as an active digital radiology receiver panel in the x-ray imaging room. Instructions are transmitted wirelessly to the active digital radiology receiver panel. Image data is obtained from the active digital radiology receiver panel following exposure to x-ray radiation.

Copy protection method for a record carrier

Firing delay for retrofit digital x-ray detector

A method and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installs a retrofit connection apparatus that adapts the x-ray imaging apparatus for use with the digital radiography receiver by forming a receiver interface channel for communicating signals to and from the digital radiography receiver, forming an operator interface channel for routing at least an input expose signal from an operator control to the connection apparatus and forming a generator interface channel for transmitting at least an output expose signal from the retrofit connection apparatus to an x-ray generator of the x-ray imaging apparatus. An input expose signal over the operator interface channel initiates a reset of the digital radiography receiver over the receiver interface channel before the output expose signal to the x-ray generator is transmitted over the generator interface channel.

Extremity imaging apparatus for cone beam computed tomography

An apparatus for cone beam computed tomography can include a support structure, a scanner assembly coupled to the support structure for controlled movement in at least x, y and z orientations, the scanner assembly can include a DR detector configured to move along at least a portion of a detector path that extends at least partially around a scan volume with a distance D1 that is sufficiently long to allow the scan volume to be positioned within the detector path; a radiation source configured to move along at least a portion of a source path outside the detector path, the source path having a distance D2 greater than the distance D1, the distance D2 being sufficiently long to allow adequate radiation exposure of the scan volume for an image capture by the detector; and a first gap in the detector path.

Method for copy protecting a record carrier, copy protected record carrier and means for detecting access control information

A method for copy protecting a record carrier is disclosed, in which method the copy protected record carriers are provided with a pattern of logical errors which cannot be corrected by the error correcting rules predefined for said record carrier. The pattern of logical errors represents access control information. The logical errors are generated during decoding the bit sequence read from the record carrier. Bit errors may be positioned in the bit sequence so as to counteract de-interleaving which is part of an error decoding process in a reading device and accumulate in error words which are uncorrectable. Also a method for detecting access control information and a retrieval arrangement are disclosed, which retrieval arrangement serves to detect the access control information by selecting at least one error location, but not all error locations on the record carrier, and verifying the presence of an error by reading the selected error location via the reading means.

Extremity imaging apparatus for cone beam computed tomography

An apparatus for cone beam computed tomography can include a support structure, a scanner assembly coupled to the support structure for controlled movement in at least x, y and z orientations, the scanner assembly can include a DR detector configured to move along at least a portion of a detector path that extends at least partially around a scan volume with a distance D 1 that is sufficiently long to allow the scan volume to be positioned within the detector path; a radiation source configured to move along at least a portion of a source path outside the detector path, the source path having a distance D 2 greater than the distance D 1 , the distance D 2 being sufficiently long to allow adequate radiation exposure of the scan volume for an image capture by the detector; and a first gap in the detector path.

PROCEDURE TO PROTECT A RECORDING SUPPORT AGAINST COPYING.

Procedimiento para proteger contra copia un soporte de grabación que tiene información almacenada en el mismo según reglas de formateo y de corrección de errores predeterminadas, estando subdividido el soporte de grabación en sectores direccionables, incluyendo el soporte de grabación una zona (26) de relleno que incluye sectores (11) de error y sectores (12) sin error, los sectores de error contienen errores lógicos y los sectores sin error no contienen errores no corregibles, que comprende las etapas de: (a) crear un archivo de imagen que comprende información principal, (63) (b) generar información de control de acceso para controlar el acceso a la información principal, (64) (c) producir un soporte de grabación que depende del archivo de imagen y de la información de control de acceso (65), que incluye las etapas de: - crear una secuencia de bits aplicando las reglas de formateo y de corrección de errores al archivo de imagen, - cambiar bits en la secuencia de bits según la información de control de acceso para constituir errores lógicos que no puedan corregirse mediante las reglas de corrección de errores y que constituyan un patrón de errores predefinido; - traducir la secuencia de bits modificada a un patrón físico de marcas en el soporte de grabación, en el que los errores lógicos se almacenan en la zona de relleno, (d) multiplicar el soporte de grabación usando un soporte maestro, (66) (e) seleccionar al menos una parte del patrón físico de marcas en el soporte de grabación, parte seleccionada que debería tener un error lógico según el patrón de errores predeterminado, (f) leer la parte seleccionada del patrón físico de marcas en el soporte de grabación, y (g) controlar el acceso a la información principal sobre el soporte de grabación dependiendo de la presencia de un error en la parte seleccionada del patrón físico de marcas en el soporte de grabación. Procedure for copy protection of a recording medium that has information stored therein according to ...

Method for associating a wireless detector with an imaging apparatus

A method for obtaining an x-ray image stores an association between a digital radiology receiver panel, a label that is applied to one or more surfaces of the digital radiology receiver panel, and an x-ray imaging room. A response to an operator instruction designates the digital radiology receiver panel having the stored association as an active digital radiology receiver panel in the x-ray imaging room. Instructions are transmitted wirelessly to the active digital radiology receiver panel. Image data is obtained from the active digital radiology receiver panel following exposure to x-ray radiation.

Auslöseverzögerung für einen nachrüstbaren digitalen röntgenstrahldetektor

Process and method for recovery of halogens

An apparatus for the recovery of a halogen or pseudohalogens from a halide compound in solution; wherein the apparatus includes; an electrochemical cell including, an electrode assembly including at least a first and second electrodes in communication with a controller for providing a current to at least two of said electrodes; wherein, upon delivery of a predetermined voltage, said halide compound is oxidised at one or more said electrodes to form a halogen corresponding to said halide in solution whereupon said halogen is deposited on said one or more electrode upon completion of oxidation.

Extremity imaging apparatus for cone beam computed tomography

An apparatus for cone beam computed tomography can include a support structure, a scanner assembly coupled to the support structure for controlled movement in at least x, y and z orientations, the scanner assembly can include a DR detector configured to move along at least a portion of a detector path that extends at least partially around a scan volume with a distance D1 that is sufficiently long to allow the scan volume to be positioned within the detector path; a radiation source configured to move along at least a portion of a source path outside the detector path, the source path having a distance D2 greater than the distance D1, the distance D2 being sufficiently long to allow adequate radiation exposure of the scan volume for an image capture by the detector; and a first gap in the detector path.

Head and neck imager

A CBCT imaging system comprises a digital radiation detector and radiation source. A detector transport moves the detector along at least a portion of a first curved path and a radiation source transport moves the radiation source along at least a portion of a second curved source path. The detector is configured to travel at least a portion of the first curved path, and the radiation source is configured to travel at least a portion of the second curved path. The detector is configured to obtain a plurality of 2D projection images over a range of scan angles for reconstructing a 3D volume image using the plurality 2D projection images.

Extremity imaging apparatus for cone beam computed tomography

An apparatus for cone beam computed tomography can include a support structure, a scanner assembly coupled to the support structure for controlled movement in at least x, y and z orientations, the scanner assembly can include a DR detector configured to move along at least a portion of a detector path that extends at least partially around a scan volume with a distance D 1 that is sufficiently long to allow the scan volume to be positioned within the detector path; a radiation source configured to move along at least a portion of a source path outside the detector path, the source path having a distance D 2 greater than the distance D 1 , the distance D 2 being sufficiently long to allow adequate radiation exposure of the scan volume for an image capture by the detector; and a first gap in the detector path.