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7372495 CMOS aps with stacked avalanche multiplication layer and low voltage readout electronics  
An image sensor includes a pixel having a protection circuit connected to a charge multiplying photoconversion layer. The protection circuit prevents the pixel circuit from breaking down when the...
7372489 Signal processing circuit and solid-state image pickup device  
A VI conversion circuit 40 n inputs a voltage output from a hold circuit 30 n , converts this input voltage to a current based on the resistance value of a resistor R 40 , and outputs this...
7369167 Photo diode ID for CMOS imagers  
A CMOS image pixel array formed on a chip is used for storing programmed information within the pixel array. Manufacturing lot and other data is written to the array during manufacturing and...
7361877 Pinned-photodiode pixel with global shutter  
An image sensor includes a two-dimensional array of pixels having a photodetector for collecting charge in response to incident light; a storage region adjacent the photodetector that receives the...
7280143 CMOS image sensor with active reset and 4-transistor pixels  
A CMOS image sensor implementing a low noise active reset operation uses control circuitry outside a pixel sensor array and transistors in a pixel sensor as parts of an amplifier that charges a...
7262801 Image processing apparatus having multiple resolutions  
There is provided an image processing apparatus comprising: a sensor including a plurality of pixels each including a light receiving element, and a scanning circuit for reading out signals in time...
7259790 MOS type solid-state image pickup device and driving method comprised of a photodiode a detection portion and a transfer transistor  
An MOS type solid-state image pickup device including pixels each of which comprises a photodiode PD, a detection portion N and a transfer transistor Q T for transferring the charges accumulated...
7224391 MOS sensor and drive method thereof  
To provide a drive method for finding out an optimum storage period quickly. In the method for driving the MOS sensor having a plurality of pixels, after all the plurality of pixels are...
7221397 Photoelectric conversion apparatus which avoids certain shading effects  
In order to solve the problem in which voltages Vsig1 read in units of rows have differences to cause vertical shading, thereby degrading image quality, and the problem in which the dynamic ranges...
7215369 Compact pixel reset circuits using reversed current readout  
Compact CMOS pixel sensors containing three or four total transistors and four or five control lines provide a high percentage of sensor area for the photodiode that measures light intensity. The...
7202899 Method to prevent white pixels in a CMOS image sensor  
A method and system for preventing white pixel difficulties resulting from undesired current induced in an image sensor having a photodiode and a depletion region therein. The photodiode is...
7202463 Higher dynamic range image sensor with signal integration  
Briefly, in accordance with one embodiment of the invention, a higher dynamic range image sensor may be implemented by comparing a voltage across the sensor to a threshold voltage during image...
7199828 Active pixel sensor cell array  
An active pixel sensor cell array in which a partial transimpedance amplifier amplifies the output of each cell. The pixel sensor cell array comprises a plurality of pixel sensor cells and a second...
7098951 Image pickup device with high contrast detection capability  
Each pixel includes first and second photodiodes that are receiving-light detecting elements. The first photodiode applies a first potential according to an amount of light entering into the...
7087881 Solid state image pickup device including an integrator with a variable reference potential  
In order to provide a solid state image pickup device in which an offset voltage in an image signal from which a noise signal is removed is made to be low, when an image pickup operation is...
7067785 Solid-state image pickup device used as a photoelectric conversion device with improved dynamic range  
It is an object of the present invention to provide a solid-state image pickup device capable of preventing any output variation due to a threshold voltage variation, and preventing a dynamic range...
7061524 Motion/saturation detection system and method for synthesizing high dynamic range motion blur free images from multiple captures  
Motion/Saturation detection system and method for synthesizing high dynamic range motion blur free images from multiple captures, the system and method utilizing photocurrent estimation to reduce...
7038820 Automatic exposure control for an image sensor  
An automatic exposure system is arranged to dynamically adjust the exposure time of a pixel array in an imaging system. A selected group of pixels from the pixel array are evaluated using a...
7026596 High-low sensitivity pixel  
A pixel circuit, and a method for operating a high-low sensitivity (HLS) pixel circuit, to provide increased dynamic range in an imager. The pixel circuit combines a four transistor (“4T”) and...
7019277 Imaging device  
The invention is directed to an imaging device and a method of operating the imaging device, which will reduce banding in the image caused by parasitic capacitance. The imaging device comprises an...
7016089 Amplification-type solid state imaging device with reduced shading  
To control the potential distribution generated in a well at the time of amplification and reduce a shading in a solid-state imaging device of amplification type, the amplification type solid-state...
6980246 Process for controlling a photosensitive device including a photosensitive point produced by techniques for depositing semiconductor materials  
A process for controlling a photosensitive device including at least one photosensitive point with a photodiode connected to a switching element. The process submits the photosensitive point to...
6980244 Solid state image pickup device, driving method thereof and camera  
There are provided a solid state image pickup device in which the accumulation time of each pixel when an electronic shutter operation is performed is constant, and a high shutter speed can be set,...
6975357 Solid-state imaging pickup device with vertical and horizontal driving means for a unit pixel  
In a CMOS image pickup device in which the signal corresponding to the accumulated charge amount of each pixel is output to horizontal signal lines wired on a row basis, for example, two vertical...
6963060 Photo-sensor array for motion detection  
Pixels in an array of image sensor pixels contain photo-sensors and circuits having inputs connected to the photosensors. The circuits have feedback loops for reducing fixed pattern noise in the...
6952227 CMOS image sensor for providing wider dynamic range  
A CMOS image sensor for providing a wider dynamic range even at a low power supply voltage level includes a plurality of unit pixels and a control unit. Each unit pixel includes: a light sensing...
6917030 Photo-sensor array with pixel-level signal comparison  
Pixels in an array of image sensor pixels contain photo-sensors. In response to illumination of a photo-sensor, an initial signal is generated. Multiple comparison signals are also generated based...
6906304 Photo-sensor array for motion detection  
Pixels in an array of image sensor pixels contain photo-sensors and circuits having inputs connected to the photosensors. The circuits have feedback loops for reducing fixed pattern noise in the...
6901134 Arrangement comprising electrical elements  
The invention relates to an arrangement which comprises electrical elements which include sensors for electromagnetic radiation such as light or X-rays or are constructed so as to emit or change...
6891143 Photo-sensor array with pixel-level signal comparison  
Pixels in an array of image sensor pixels contain photo-sensors. In response to illumination of a photo-sensor, an initial signal is generated. Multiple comparison signals are also generated based...
6856351 Device and method for reducing lag and blooming in amorphous silicon sensor arrays  
A clamping circuit including a clamping diode, a bias line, and a clamp line is incorporated into a pixel circuit of amorphous silicon sensor arrays. The clamp diode in each pixel prevents the...
6839407 Arrangement of sensor elements  
The invention relates to an arrangement of sensor elements in which the sensor elements are arranged to detect electromagnetic radiation, such as X-rays or light, and to generate in response...
6730898 Photoelectric converter  
To provide a photoelectric converter in which random noise is reduced. In a photoelectric converter, an output terminal of a photoelectric converter means is connected to input terminals of a reset...
6727946 APS soft reset circuit for reducing image lag  
An improved active pixel sensor soft reset circuit for reducing image lag while maintaining low reset kTC noise. The circuit pulls down the sensor potential to a sufficiently low level before the...
RE38499 Two-stage amplifier for active pixel sensor cell array for reducing fixed pattern noise in the array output  
An active pixel sensor cell array in which a two-stage amplifier amplifies the output of each cell. The two-stage amplifier design reduces fixed pattern noise in the image data generated by reading...
6707497 Method of biasing the photodiodes of a matrix sensor through associated pixels thereof  
An image sensor comprises a detector circuit ( 17 ) with detector diodes ( 3 ), which are reverse biased during image sensing. It is characterized in that the cathode voltage of the detector diodes...
6670990 Image sensing device using MOS-type image sensing element whose threshold voltage of charge transfer switch and reset switch is different from that of signal output transistor  
In a photoelectric conversion device having a plurality of pixel cells each of which includes a photoelectric conversion element, a field effect transistor having the gate area for storing signal...
6661459 Solid state image pickup device with LDD structure and reset transistor  
In a solid state image pickup device, in order to form a bypass region with precisely controlled impurity concentration and width, there is provided a solid state image pickup device comprising a...
6618084 Pixel correction system and method for CMOS imagers  
Disclosed is a fault tolerant CMOS image sensor that includes circuitry for identifying defective pixels and masking them during image generation. Masking may involve, in one example, replacing the...
6590611 Solid-state image-pickup devices and methods for motion detection  
Solid-state image-pickup devices and associated drive methods are disclosed that simultaneously provide an image signal and a motion-detection signal. A representative device comprises an array of...
6549684 Image sensor having an array with integrated control circuitry which includes constantly-illuminated photodiodes  
An image sensor ( 10 ) includes an array having an image sensing portion ( 12 ) and a control portion ( 14 ). Pixels ( 18 ) of the image sensing portion and devices ( 20 ) of the control circuitry...
6542194 Imaging apparatus that starts charge accumulation in sequence based on movement speed on light-shielding member  
An imaging device performs moving image shooting in which smearing does not occur and further performs a still image shooting by a sufficiently accurate shutter operation. The imaging device...
6522357 Method and apparatus for increasing retention time in image sensors having an electronic shutter  
In a pixel having an electronic shutter, a method of increasing the retention time of the electronic shutter is disclosed. A reset signal is employed to drive a diode node to a predetermined...
6512547 Solid-state imaging device and method of detecting optical signals using the same  
The present invention is a method for detecting photo signals using an imaging device, comprising steps of photo-generating holes in a well region 15 of a photo-diode by a signal light,...
6504572 Circuit for detecting leaky access switches in CMOS imager pixels  
Disclosed is a CMOS image sensor that includes circuitry for identifying defective pixels, particularly pixels having leaky access switches. The leaky access switches allow charge to escape from...
6501506 Solid image pick-up unit and driving method therefor  
The present invention relates to a solid image pick-up unit which can restrict a variation in the leakage charge quantity at the light emitting time and non-emitting time of the LED and in which a...
6493030 Low-noise active pixel sensor for imaging arrays with global reset  
An imaging array of active pixel sensors uses a reset amplifier in each pixel in a four transistor CMOS implementation. The reset amplifier acts as a variable resistance in the source-follower...
6369853 Intra-pixel frame storage element, array, and electronic shutter method suitable for electronic still camera applications  
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...
6333760 Area isolation type solid-state image pickup device for increasing the usage of the element formation surface of a semiconductor chip  
An area-isolation type solid-state image pickup device is such that an image pickup area is formed on an element formation surface of a semiconductor chip in a way to correspond to an optical image...
6320616 CMOS image sensor with reduced fixed pattern noise  
A correlated double-sampling circuit for sampling an input signal received from a pixel sensor circuit via an input line. According to one embodiment, a first switch selectively couples a junction...
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