| Patent Number |
Title Of Patent |
Date Issued |
| 7372595 |
Flexible image rendering system utilizing intermediate device-independent unrendered image data |
May 13, 2008 |
| A flexible, user-friendly computer-implemented image processing system is provided. The system includes a process to receive an image rendering request. The image rendering request includes an indication of raw image data and an indication of desired rendering output characteristics. A |
| 7339216 |
Vertical color filter sensor group array with full-resolution top layer and lower-resolution low |
March 4, 2008 |
| An array of vertical color filter (VCF) sensor groups, optionally including or coupled to circuitry for converting photogenerated carriers produced in the sensors to electrical signals, and methods for reading out any embodiment of the array. The array has a top layer (including the |
| 7166880 |
Vertical color filter sensor group with carrier-collection elements of different size and method |
January 23, 2007 |
| A vertical color filter sensor group formed on a substrate (preferably a semiconductor substrate) and including at least two vertically stacked, photosensitive sensors, and an array of such sensor groups. In some embodiments, a carrier-collection element of at least one sensor of the |
| 6998660 |
Vertical color filter sensor group array that emulates a pattern of single-layer sensors with ef |
February 14, 2006 |
| An array of vertical color filter (VCF) sensor groups, each VCF sensor group including at least two vertically stacked, photosensitive sensors. Preferably, the array is fabricated, or the readout circuitry is configured (or has a state in which it is configured), to combine the outpu |
| 6934050 |
Method for storing and retrieving data from an imaging array of vertical-color-filter detector g |
August 23, 2005 |
| A method for storing a full Red, Green, Blue (RGB) data set. A full RGB data set is three-color image data captured with an imager array formed on a semiconductor substrate and comprising a plurality of vertical-color-filter detector groups. Each of the vertical color detector groups |
| 6882367 |
High-sensitivity storage pixel sensor having auto-exposure detection |
April 19, 2005 |
| A storage pixel sensor disposed on a semiconductor substrate comprises a photodiode having a first terminal coupled to a first potential and a second terminal. A barrier transistor has a first terminal coupled to the second terminal of the photodiode, a second terminal and a control gate |
| 6864557 |
Vertical color filter detector group and array |
March 8, 2005 |
| A vertical color detector group according to the present invention is formed on a semiconductor substrate and includes layers for collecting photons of different wavelength bands. The color detector group can be programmed to perform dynamic switching between sub-sampled color data and |
| 6853404 |
Electronic view camera for tripod mounting |
February 8, 2005 |
| An electronic view camera integrates a camera head assembly and laptop computer into a tripod mountable unified structure. The rigid frame, that unifies the camera head and computer, accommodates a choice of laptop type computers from a variety of different manufacturers. The open front, |
| 6841816 |
Vertical color filter sensor group with non-sensor filter and method for fabricating such a sens |
January 11, 2005 |
| A vertical color filter sensor group formed on a substrate (preferably a semiconductor substrate) and including at least two vertically stacked, photosensitive sensors. In preferred embodiments, the sensor group includes at least one filter positioned relative to the sensors such that |
| 6833871 |
Exposure control in electronic cameras by detecting overflow from active pixels |
December 21, 2004 |
| A method for controlling the exposure of an active pixel array electronic still camera includes the steps of: integrating photocurrent in each pixel during an integration time period; collecting overflow charge from all pixels in the array during the integration time period; developing a |
| 6798586 |
Corrector optic compensating spherical and coma aberrations generated by a prism |
September 28, 2004 |
| A corrector optic is provided, for use in a camera system that includes a thick prism in front of the focal plane. The corrector optic includes preferably two lenses to be aligned on the optical axis of the camera system. When coupled within the camera system, the corrector optic is |
| 6794627 |
Aggregation of active pixel sensor signals |
September 21, 2004 |
| An image sensor includes a plurality of active pixel sensors arranged in an array. Each active pixel sensor includes a photosensor that generates a sensor signal nominally indicative of an intensity of light incident on the photosensor and a follower-type amplifier that couples the senso |
| 6760070 |
High-sensitivity storage pixel sensor array having auto-exposure detection |
July 6, 2004 |
| An integrated active pixel sensor array arranged in a plurality of rows and columns comprises a saturation level line coupled to a source of saturation level control voltage, a global current-summing node. A plurality of active pixel sensors is disposed in the array, each pixel senso |
| 6741283 |
Intra-pixel frame storage element, array, and electronic shutter method suitable for electronic |
May 25, 2004 |
| A storage pixel sensor disposed on a semiconductor substrate comprises a capacitive storage element having a first terminal connected to a fixed potential and a second terminal. A photodiode has an anode connected to a first potential and a cathode. A semiconductor reset switch has a fir |
| 6731397 |
Method for storing and retrieving digital image data from an imaging array |
May 4, 2004 |
| A method for storing digital information from an image sensor comprises the steps of providing an image sensor producing three-color output data at each of a plurality of pixel locations; providing a digital storage device coupled to the image sensor; sensing three-color digital output d |
| 6636261 |
Driven capacitor storage pixel sensor and array |
October 21, 2003 |
| A storage pixel sensor comprises a photosensor selectively connectable to a reset potential; a switched buffer amplifier having a control terminal coupled to said photosensor, a first terminal connected to a source of a transfer signal, and a second terminal; a storage capacitor coupled |
| 6606120 |
Multiple storage node full color active pixel sensors |
August 12, 2003 |
| An active pixel sensor is disposed on a semiconductor substrate of a first conductivity type, and comprises a plurality of semiconductor regions disposed in the substrate, each successive one of the semiconductor regions being enclosed entirely within another enclosing one of the sem |
| 6525304 |
Circuitry for converting analog signals from pixel sensor to a digital and for storing the digit |
February 25, 2003 |
| A digital pixel sensor is formed on a semiconductor substrate and comprises a phototransducer responsive to light for providing an analog output signal that is a function of an incident amount of light. A comparator is configured to compare the analog output signal and a ramp reference |
| 6512858 |
Image scanning circuitry with row and column addressing for use in electronic cameras |
January 28, 2003 |
| A scanning circuit for use with an active pixel sensor array comprises a row-address generator configured to start at a selected row-start address, stop at a selected row-stop address, and increment row addresses by a factor K. A column-address generator is configured to start at a selec |
| 6512544 |
Storage pixel sensor and array with compression |
January 28, 2003 |
| A storage pixel sensor disposed on a semiconductor substrate comprises a photosensor. At least one nonlinear capacitive element is coupled to the photosensor. At least one nonlinear capacitive element is arranged to have a compressive photocharge-to-voltage gain function. An amplifier ha |
| 6480621 |
Statistical classifier with reduced weight memory requirements |
November 12, 2002 |
| A neural network has reduced requirements for storing intermodal weight values, as a result of a dual-precision training process. In the forward propagation of training samples, low-resolution weight values are employed. During back-propagation of errors to train the network, higher- |
| 6452633 |
Exposure control in electronic cameras by detecting overflow from active pixels |
September 17, 2002 |
| A method for controlling the exposure of an active pixel array electronic still camera includes the steps of: integrating photocurrent in each pixel during an integration time period; collecting overflow charge from all pixels in the array during the integration time period; developing a |
| 6410899 |
Active pixel sensor with bootstrap amplification and reduced leakage during readout |
June 25, 2002 |
| An integrated active pixel sensor array comprises a plurality of row select lines, each of said row select lines coupled to a source of a row-select signal; a plurality of source-follower drain row lines, each of said source-follower drain row lines coupled to a source of a source-follow |
| 6369853 |
Intra-pixel frame storage element, array, and electronic shutter method suitable for electronic |
April 9, 2002 |
| A storage pixel sensor disposed on a semiconductor substrate comprises a capacitive storage element having a first terminal connected to a fixed potential and a second terminal. A photodiode has an anode connected to a first potential and a cathode. A semiconductor reset switch has a fir |
| 6330113 |
Color separation prism with adjustable path lengths |
December 11, 2001 |
| A color-separation prism assembly comprises first, second and third prisms. The first and second prisms have entrance surfaces, exit surfaces, and partially-reflecting surfaces, wherein the entrance surface of the second prism is separated by an air gap from the partially-reflecting surf |
| 6211510 |
Active pixel sensor with bootstrap amplification |
April 3, 2001 |
| In a first embodiment an active pixel sensor includes a photodiode for capturing photocharge, a reset transistor for resetting the photodiode to a reset potential, and a readout transistor, and in a second embodiment an active pixel sensor includes a photodiode for capturing photocharge, |
| 6097022 |
Active pixel sensor with bootstrap amplification |
August 1, 2000 |
| In a first embodiment an active pixel sensor includes a photodiode for capturing photocharge, a reset transistor for resetting the photodiode to a reset potential, and a readout transistor, and in a second embodiment an active pixel sensor includes a photodiode for capturing photocharge, |
| 6078429 |
Color separating prism having violet light component in red channel |
June 20, 2000 |
| A color separating prism is disclosed for use in an electronic imaging systems such as a video or digital still-image camera. The prism separates an incoming light beam into red, green and blue light components and directs the separated light components onto adjacent imaging sensors. |
| 6054704 |
Driven capacitor storage pixel sensor and array |
April 25, 2000 |
| A storage pixel sensor comprises a photosensor selectively connectable to a reset potential; a switched buffer amplifier having a control terminal coupled to said photosensor, a first terminal connected to a source of a transfer signal, and a second terminal; a storage capacitor coupled |
| 5946410 |
Adaptive classifier for compound characters and other compound patterns |
August 31, 1999 |
| A statistical classifier utilizes combined output values to determine posterior probabilities for certain output classes. In the field of handwriting recognition, compound characters are factored into classes of base letter forms and diacritical marks. A separate output activation va |
| 5903884 |
Method for training a statistical classifier with reduced tendency for overfitting |
May 11, 1999 |
| To prevent overfitting a neural network to a finite set of training samples, random distortions are dynamically applied to the samples each time they are applied to the network during a training session. A plurality of different types of distortions can be applied, which are randomly |
| 5805731 |
Adaptive statistical classifier which provides reliable estimates or output classes having low p |
September 8, 1998 |
| A statistical classifier for pattern recognition, such as a neural network, produces a plurality of output signals corresponding to the probabilities that a given input pattern belongs in respective classes. The classifier is trained in a manner such that low probabilities which pertain |
| 5805730 |
Method for training an adaptive statistical classifier with improved learning of difficult sampl |
September 8, 1998 |
| A statistical classifier that can be used for pattern recognition is trained to recognize negative, or improper patterns as well as proper patterns that are positively associated with desired output classes. A set of training samples includes both the negative and positive patterns, and |
| 5796863 |
Method for training an adaptive statistical classifier to balance unigram prior factors |
August 18, 1998 |
| A statistical classifier is trained in a manner to remove biasing due to unequal frequencies of unigram priors. The relative frequencies of all classes in a training set of sample patterns is determined. Training patterns are then selected from the set and skipped or repeated in depe |
| 5739820 |
Method and apparatus for specular reflection shading of computer graphic images |
April 14, 1998 |
| A method and system for approximating a Phong shading calculation for 3D renderings of realistic graphic images. The new method uses only a modest number of multiplies and adds to approximate a calculation that required divides, square roots and powers. The approximation uses approximate |
| 5675665 |
System and method for word recognition using size and placement models |
October 7, 1997 |
| A bounds evaluation unit generates a bounds measurement pair corresponding to a character pattern pair determined from a handwritten word. Within the bounds measurement pair, a first bounds measurement corresponds to a first character pattern, and a second bounds measurement corresponds |
| 5550487 |
Apparatus and method for allowing a synamic logic gate to operate statically |
August 27, 1996 |
| A statically operated dynamic CMOS logic gate that includes an FET logic network for performing a predefined logic function with respect to its logic inputs, an output node, a precharge transistor, and in some embodiments an evaluate transistor. During operation, the precharge transi |
| 5502663 |
Digital filter having independent damping and frequency parameters |
March 26, 1996 |
| A filter capable of having its damping and frequency parameters independently varied. The filter can be represented in either a digital or an analog computation network. The network comprises four multipliers for multiplying by a frequency term twice and a damping factor twice. In ad |
| 5473759 |
Sound analysis and resynthesis using correlograms |
December 5, 1995 |
| A system for reconstructing a signal waveform from a correlogram is based upon the recognition that the information in each channel of the correlogram is equivalent to the magnitude of the Fourier transform of a signal. By estimating a signal on the basis of its Short-Time Fourier Tr |
| 5440243 |
Apparatus and method for allowing a dynamic logic gate to operation statically using subthreshol |
August 8, 1995 |
| A statically operated dynamic CMOS logic gate that includes an FET logic network for performing a predefined logic function with respect to its logic inputs, an output node, a precharge transistor, and in some embodiments an evaluate transistor. During operation, the precharge transi |
| 5355329 |
Digital filter having independent damping and frequency parameters |
October 11, 1994 |
| A filter capable of having its damping and frequency parameters independently varied. The filter can be represented in either a digital or an analog computation network. The network comprises four multipliers for multiplying by a frequency term twice and a damping factor twice. In ad |
| 5319268 |
Circuits for wide input range analog rectification and correlation |
June 7, 1994 |
| A first and a second MOS transistor of the same conductivity type are connected in series between a load and a fixed voltage source. The gates of the first and second MOS transistors are connected to sources of input voltage which are of a magnitude smaller than the threshold voltages of |
| 4796227 |
Computer memory system |
January 3, 1989 |
| An improved computer memory system based on a novel four transistor memory cell and an improved address decoder circuit is disclosed. The memory cell can be fabricated using currently available logic fabrication processes and requires a silicon area less than that required by prior art s |
| 4771196 |
Electronically variable active analog delay line |
September 13, 1988 |
| An electronically variable active analog delay line utilizes cascaded differential transconductance amplifiers with integrating capacitors and negative feedback from the output to the input of each noninverting amplifier. The delay of each section may be controlled through a conductor |
| 4740894 |
Computing processor with memoryless function units each connected to different part of a multipo |
April 26, 1988 |
| A processing element may be used either separately or in an array of similar processing elements for performing concurrent data processing calculations. The processing element includes a multiported memory unit for storing data to be processed by any of a plurality of function units |
| 4536844 |
Method and apparatus for simulating aural response information |
August 20, 1985 |
| Speech and like signals are analyzed based on a model of the function of the human hearing system. The model of the inner ear is expressed as signal processing operations which map acoustic signals into neural representations. Specifically, a high order transfer function is modeled a |
| 4521773 |
Imaging array |
June 4, 1985 |
| An imaging array provides a plurality of distinguishable bitmap images and comprises an array of sensor cells capable of sensing radiation. The cells are connected in a manner to form distinguishable bitmap images through a pattern of correspondence among the cells. Each bitmap image for |
| 4521772 |
Cursor control device |
June 4, 1985 |
| A cursor control device or "optical mouse" for use with an interactive display oriented computer system to provide movement for a visible cursor from position to position on a display screen of such a system. The device includes an IC chip that contains an optical sensor array and circui |
| 4513427 |
Data and clock recovery system for data communication controller |
April 23, 1985 |
| A data and clock recovery system is provided in the signal handling receiver (SHRx) stage of an integrated MOS circuit data communication controller to provide accurate sampling of an incoming data packet for recovery of the data and data clock, regardless of differences in the elect |
| 4494021 |
Self-calibrated clock and timing signal generator for MOS/VLSI circuitry |
January 15, 1985 |
| A self-calibrated clock and timing signal generator provides reliable and continuous arbitrary digital waveforms of preselectable edge resolution. The generator comprises a multistage means to produce a time delayed signal of preselectable edge resolution and having a plurality of output |
