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| Number | Title | Issue Date |
| 8169512 | Video signal processing circuit, imaging device and video signal processing method A digital still camera includes an amplification circuit, a timing generator, sample hold circuits, a differential amplifier, an analog/digital conversion circuit and a control unit. The generator generates a first-pulse signal and a second-pulse signal at different... | 05/01/2012 |
| 8164659 | Image pickup apparatus, image display apparatus, and image display system An image display system has a capsule endoscope for capturing an in-vivo image of a subject, a receiving device for receiving the in-vivo image from the capsule endoscope, and an image display apparatus for displaying a group of in-vivo images of the subject. The ca... | 04/24/2012 |
| 8159569 | Circuit and method for processing image abnormality caused by power supply A method for processing an image abnormality caused by power supply is provided, which is used in a digital image-capturing apparatus. The method can be described as follows. First, power of the digital image-capturing apparatus is turned on. Next, a line data of an... | 04/17/2012 |
| 8149304 | Solid-state imaging device and imaging device Solid-state imaging device having a plurality of vertical signal lines, includes for each vertical signal line, an effective pixel and a dummy pixel, a switch transistor provided on a path connecting the dummy pixel and the vertical signal line, and a read-out unit.... | 04/03/2012 |
| 8102444 | Method and apparatus for post noise reduction black level correction Techniques for implementing a Black Level Correction (BLC) processing operation on image data signal pixel values that results in little to no nonlinearity in the dark areas of the image due to black noise clipping, and avoids reducing image quality or adding cost, ... | 01/24/2012 |
| 8054347 | Image sensor systems having improved noise performance A light-sensitive pixel array has an active area and an additional area of optically shielded pixels. A “noise figure” is derived as a measure of the prevalence of noise in the image signal without being affected by the presence of moving detail in the image. Th... | 11/08/2011 |
| 8040405 | Solid-state imaging apparatus The present invention relates to solid-state imaging apparatus such as digital camera for outputting video signals, and more particularly relates to a solid-state imaging apparatus in which vertical stripe-like noise and horizontal shading can be corrected. ... | 10/18/2011 |
| 8018505 | Image-pickup apparatus An image-pickup apparatus configured to perform vertical-dark-shading correction with increased precision independently of photographing conditions and/or a photographing environment is provided. The image-pickup apparatus includes an image-pickup element having an ... | 09/13/2011 |
| 7999866 | Imaging apparatus and processing method thereof An imaging apparatus is provided having: a pixel unit including an effective pixel region of multiple pixels accumulating charges generated according to incident light to output signals and an ineffective pixel region of multiple pixels outputting signals not depend... | 08/16/2011 |
| 7920185 | Shielding black reference pixels in image sensors An image sensor having an array of pixel cells, each including a photo-conversion device. The array has first, second, and third groups of pixel cells. The first group of pixel cells receives light and the second and third groups are shielded from light. Each pixel ... | 04/05/2011 |
| 7852386 | Solid state imaging device and method for driving same and imaging apparatus A solid state imaging device including: a pixel portion having a plurality of pixels arrayed two-dimensionally and including an effective pixel portion and a dummy pixel portion; a timing generator for generating address information for reading signals of pixels of ... | 12/14/2010 |
| 7633536 | Image capturing apparatus According to this invention, even when an image capturing apparatus has a plurality of read modes, the frame rate can be prevented from decreasing in a high-resolution video photographing mode. The image capturing apparatus includes an image sensor and drive unit. T... | 12/15/2009 |
| 7570289 | Electronic camera having a clamp circuit and performing a clamping process on an image signal An electronic camera includes a CCD imager. A first specific evaluation area is assigned to one end in a horizontal direction of an effective area formed on an imaging surface, and a second specific evaluation area is assigned to the other end in a horizontal direct... | 08/04/2009 |
| 7567277 | Image-pickup device and signal processing method for noise correction The present invention provides an image pickup device that can accurately adjust the black level value of the effective pixel area while correcting column noise contained in pixel signals of the effective pixel area. The image pickup device includes a solid-state im... | 07/28/2009 |
| 7522199 | Imaging device with light-shielding region, control method thereof and CMOS image sensor with light-shielding region An imaging device provided with a read circuit in which a light-shielding region is formed in a part of an image region where a plurality of optical/electrical conversion devices is two-dimensionally arrayed in the row and column directions and which converts a opti... | 04/21/2009 |
| 7443432 | Suppression of noise in pixel Vsupply A circuit and method for correcting for power supply voltage noise using two dummy pixels in each row of pixels of an imager having a number of pixels arranged in rows and columns are described. The dummy pixels are driven by the same power supply as the active pixe... | 10/28/2008 |
| 7432965 | Black level correcting device and electronic camera A black level correcting device includes: an A/D converting section converting a result of subtracting a feedback signal from an input pixel signal into a pixel value to be output; and a feedback controlling section generating the feedback signal and having a holdin... | 10/07/2008 |
| 7427740 | Image sensor with drain region between optical black regions An image sensor comprises an active pixel region that includes a plurality of unit pixels arranged in a matrix pattern, a first optical black region formed adjacent to the active pixel region, wherein a plurality of shaded unit pixels are arranged therein, a drain r... | 09/23/2008 |
| 7408579 | Solid-state imaging device In a solid-state imaging device, bus lines are provided at both sides of an imaging area vertically to send vertical-transfer clock pulses to shunt wires disposed on or over the imaging area at both ends of the signal lines of the shunt wires. Bus lines disposed clo... | 08/05/2008 |
| 7391449 | Method of processing the black level of a pixel matrix of an image sensor, and corresponding sensor For each current image output from a pixel matrix, the digital words relative to at least one masked line of the matrix are processed to generate a current correction digital code. From this code, a black level compensation signal is generated and applied as an offs... | 06/24/2008 |
| 7391454 | Image sensor controller, electronic device, and method for controlling image sensor An image sensor controller and methods achieve faster image reading speeds by controlling the frequency of image sensor transfer clocks φ1, φ2 in accordance with the particular output period. Such an image sensor controller includes a drive controller that ... | 06/24/2008 |
| 7388609 | Dynamic identification and correction of defective pixels Rather than storing a table within a digital camera or other optical device of defective pixels within its image sensor, defective pixels are dynamically identified by comparing the output values of individual pixels under test with those of neighboring pixels. If t... | 06/17/2008 |
| 7385636 | Low noise sample and hold circuit for image sensors An image sensor includes a plurality of pixels for capturing incident light that is converted to a signal representing an image; wherein noise is combined with a signal representing both the image and a reset level; a plurality of dark reference pixels that generate... | 06/10/2008 |
| 7372491 | CMOS image sensor Provided is a photographing apparatus (CMOS image sensor) that enables enlarging the area that the PD occupies by making simple the layout within a pixel wherein a photo-electric conversion element and a plurality of CMOS transistors are laid out. The photographing ... | 05/13/2008 |
| 7368696 | Generation and storage of column offsets for a column parallel image sensor The plural signal chains of an imaging device are calibrated in the digital domain. The pixel array of the imaging device includes a row of calibration pixels. The column circuitry, prior to reading a row of pixels, reads the row of calibration pixels in order to ob... | 05/06/2008 |
| 7362365 | Digital image capture having an ultra-high dynamic range An image capture method in a digital image sensor implements a continuous sampling technique with a massively parallel thermometer-code analog-to-digital conversion (ADC) technique to generate pixel data having an intrinsic to an ultra-high dynamic range. In one emb... | 04/22/2008 |
| 7359099 | Image reading device and image forming apparatus An image reading device includes a photoelectric device provided with an empty transfer part. An A-D converter performing A-D conversion on an output signal for each pixel of the photoelectric device. A reference voltage varying part varies a reference voltage of th... | 04/15/2008 |
| 7327392 | Signal processing apparatus A signal processing apparatus including a clamp pulse generation circuit for generating a clamp pulse in synchronization with an image signal, a clamp circuit for clamping a signal of a black reference value in response to the clamp pulse, and a defect detection cir... | 02/05/2008 |
| 7324072 | Pixel border for improved viewability of a display device A display device having a display matrix including a pixel border of width x and located around the edge locations of the matrix for improved viewability. The pixels of the border are “dummy pixels” each containing a red, a green and a blue subpixel. Each subpix... | 01/29/2008 |
| 7321329 | Analog-to-digital converter and semiconductor device An electronic apparatus includes a CMOS image sensor and a signal processor operable to process an output signal from the CMOS image sensor. The CMOS image sensor includes the following elements: an imaging region; a reference signal generator operable to generate a... | 01/22/2008 |
| 7319423 | Multi-mode ADC and its application to CMOS image sensors An analog-to-digital converter apparatus for analog source signals of one polarity, includes one comparator formed from transistors, a block of digitally addressable voltage sources to set a reference voltage of the comparator, an asynchronous n-bit digital counter,... | 01/15/2008 |
| 7317480 | Imaging apparatus providing black level compensation of a successive approximation A/D converter Image sensor with a successive approximation A/D converter that automatically compensates for black level and provides a signal indicative of the difference between the reset level and the signal level. Black level for each of a plurality of color pixels may be obta... | 01/08/2008 |
| 7304673 | Image sensor array with substitutional circuit distribution An image sensor includes a plurality of photosensitive sites which convert incident light into a charge for forming a bounded array of active imaging pixels; one or more substitutional pixels sites arranged in predetermined locations and interspersed amongst the bou... | 12/04/2007 |
| 7301572 | Pixel correction processing apparatus, image processing apparatus, pixel correction processing method, program, and storage medium This invention has as its object to prevent degradation of the image quality caused by insufficient or excessive correction of a defective pixel, and realize high-speed, high-precision correction processing for a defective pixel. To achieve this object, an apparatus... | 11/27/2007 |
| 7298403 | Image reading device An image reading device ready to operate at higher speed is built as an IC chip having a plurality of processing sections, of which each has a plurality of image reading photoelectric conversion elements, a plurality of transistors for reading a photoelectric conver... | 11/20/2007 |
| 7292213 | Method and device for repairing defective pixels of a liquid crystal display panel A method and device for repairing defective pixels of a liquid crystal display panel. First, examine the liquid crystal panel to obtain the locations of defective pixels on a liquid crystal display. Next, input a pixel signal wherein the pixel signal further compris... | 11/06/2007 |
| 7271833 | Image pickup apparatus, image data processing apparatus, image data outputting method, image data processing system and image pickup device Intentionally defective pixels, whose number exceeds a storage capacity of a memory for defect correction, are formed in a predetermined pattern in an image pickup device. There is a plurality of patterns of the defective pixels, each being unique to each camera (im... | 09/18/2007 |
| 7268812 | Solid-state image pickup device and pixel defect testing method thereof A solid-state image pickup device and a pixel defect testing method thereof are disclosed. A solid-state image pickup device including: a pixel unit having a plurality of unit pixels that perform photoelectric conversion; a driving circuit for driving the pixel unit... | 09/11/2007 |
| 7256383 | Optical sensor circuit, method of processing output signal of the same, and electronic apparatus An optical sensor circuit has a first optical sensor that outputs a signal according to the amount of received light on an opened light-receiving surface, a second optical sensor that is provided near the first optical sensor and outputs a signal according to the am... | 08/14/2007 |
| 7247828 | Semiconductor pickup device comprising pixel circuits having a varying frame rate A semiconductor pickup device includes a pixel circuit including: a photodiode passing to a prescribed node a current of a value corresponding to intensity of light received; a log transistor operating in a log region when the prescribed node is increased in potenti... | 07/24/2007 |
