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Inventor:
Aufrichtig; Richard
Address:
Mountain View, CA
No. of patents:
22
Patents:












Patent Number Title Of Patent Date Issued
7617601 Manufacturing process for smaller active areas in flat panel X-ray detectors November 17, 2009
The present invention generally relates to a method for forming a flat panel for an X-ray detector device. The method comprises forming an active area of a first size on a substrate of a second size and extending at least one contact of the active area. The method further comprises t
7558412 System and method for compensation of scintillator hysteresis in x-ray detectors July 7, 2009
A method and system for detecting the potential of an x-ray imaging system to create images with scintillator hysteresis artifacts includes examining an x-ray image to measure two signal levels for two areas of interest, then determining a difference between the two signal levels and
7435967 X-ray detector with impact absorbing cover October 14, 2008
The present invention is a directed to a cover assembly for an x-ray detector that incorporates impact-absorbing material designed to absorb the shock, vibration, stress, and strain placed on the detector when dropped or subjected to a load. The cover assembly may include a layer or
7216423 Manufacturing process for smaller active areas in flat panel X-ray detectors May 15, 2007
The present invention relates to a method for forming an active area or flat panel in an X-ray detector device. The method comprises forming at least one flat form factor panel in a first size on a substrate of a second size and extending at least one contact of the at least one flat
7189972 X-ray detector with impact absorbing cover March 13, 2007
The present invention is a directed to a cover assembly for an x-ray detector that incorporates impact-absorbing material designed to absorb the shock, vibration, stress, and strain placed on the detector when dropped or subjected to a load. The cover assembly may include a layer or
7081628 Spatially patterned light-blocking layers for radiation imaging detectors July 25, 2006
Spatially patterned light-blocking layers for radiation imaging detectors are described. Embodiments comprise spatially patterned light-blocking layers for an amorphous silicon flat panel x-ray detector, wherein the spatially patterned light-blocking layer blocks light from a predete
7068854 Correction of defective pixels in a detector June 27, 2006
A detector imaging system having an apparatus and method for correcting defective pixels in an acquired image is disclosed herein. The system includes a correction scheme including temporarily replacing a defective pixel with a linear interpolation of the defective pixel's surrounding
7005663 Sampling methods and systems that shorten readout time and reduce lag in amorphous silicon flat February 28, 2006
Sampling methods and systems that shorten readout time and reduce lag in amorphous silicon flat panel x-ray detectors are described. Embodiments comprise: (a) activating a reset switch to discharge any residual signal being held in a feedback capacitor; (b) deactivating the reset switch;
6920198 Methods and apparatus for processing a fluoroscopic image July 19, 2005
A method for processing a fluoroscopic image includes generating a lag prediction model, scanning an object at a first radiation dosage with an imaging system including at least one radiation source and at least one detector array, and periodically updating the lag prediction model durin
6792159 Correction of defective pixels in a detector using temporal gradients September 14, 2004
A detector imaging system having an apparatus and method for correcting defective pixels in a current acquired image is disclosed herein. The system performs the correction of defective pixels using image feature information and temporal information. The system includes a correction
6663281 X-ray detector monitoring December 16, 2003
An x-ray system (14) including a source of x-rays (15) and a detector (22) monitors the detector with a control (36) that calibrates the detector during a calibration phase of operation and powers the detector during use phases of operation occurring at different times. A processor (28,
6661456 Imaging of pixel defects in digital detectors December 9, 2003
A method and apparatus for displaying an image generated by at least one detector of an imaging unit are disclosed herein. The method includes creating a pixel map identifying locations of bad pixels in an array of pixels in the image detected by the at least one detector, linking the
6623161 Method and apparatus for identifying and correcting line artifacts in a solid state X-ray detect September 23, 2003
A method is provided for identifying detector elements in a solid state X-ray detector susceptible to causing line artifacts due to faulty detector elements that leak charge. A portion of the X-ray detector is covered by a radiation occluding material and the detector is exposed to a
6521886 Method of monitoring changes in the detective quantum efficiency of an x-ray detector February 18, 2003
Automated measurement of changes in detective quantum efficiency (DQE) within an x-ray detector. The calculation of relative DQE changes is limited to the measurement of two quantities, namely MTF(f) and NPS(f). The measurement of MTF is obtained using an image quality phantom techni
6460003 Apparatus and method for resolution calibration of radiographic images October 1, 2002
A method and apparatus for calibrating the resolution of a medical imaging system measures unadjusted performance of a digital image detector used in the medical imaging system. The method then determines a weighting coefficient for a spatial frequency band processed by the medical imagi
6393097 Digital detector method for dual energy imaging May 21, 2002
A method for minimizing motion artifacts in Dual Energy Subtraction digital radiographic imaging applications by minimizing the time lapse between the two x-ray exposure frames. This is accomplished by acquiring the two x-ray exposure frames relatively consecutively without a correspondi
6359961 Apparatus and methods for stereo radiography including remote control via a network March 19, 2002
A radiographic imaging system includes an X-ray emitter, an X-ray detector, and a network. The X-ray emitter is actuatable to emit an X-ray beam centered about an X-ray beam axis. The X-ray detector has a generally planar configuration and is situated within the path of the X-ray beam to
6256372 Apparatus and methods for stereo radiography July 3, 2001
A digital radiographic imaging system is described which includes an automatic X-ray exposure sequence during which two consecutive images of a target are obtained from two views separated by a translation of the X-ray emitter, wherein such translation is oriented generally parallel to t
6231231 Modular interchangeable phantoms for multiple x-ray systems May 15, 2001
Modular interchangeable phantoms for multiple x-ray systems are provided. A variety of x-ray phantoms may be interchangeably inserted into a modular phantom carrier. Once a phantom has been inserted into the carrier, the phantom is locked to the carrier by either at least one rotating fa
6215853 Apparatus and method for x-ray collimator sizing and alignment April 10, 2001
The present invention provides a method and apparatus for calibrating the size and alignment of a collimator. The method includes the step of acquiring a digital image showing collimator blades in front of a region of interest. The method then determines the position of one or more of th
6151383 Radiographic testing system with learning-based performance prediction November 21, 2000
Disclosed herein is a radiographic imaging system which performs system performance monitoring by (1) using automatic exposure control (AEC) components to predict the average image gray level; (2) obtaining measured average image gray levels from the portions of the X-ray detector situat
6149301 X-ray target centering apparatus for radiographic imaging system November 21, 2000
An apparatus for properly centering and/or collimating an X-ray beam with respect to a target to be radiographically imaged. A field definer is situated between an X-ray source and an X-ray detector at the location where the target is to be situated. The field definer includes a pair of










 
 
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