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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,...
7427736 Method and apparatus for providing a rolling double reset timing for global storage in image sensors  
An apparatus for and a method of operating an array of pixels of an image sensor, where each pixel includes at least a photosensor, an associated storage device and a floating diffusion region and...
7420600 Photoelectric conversion apparatus with circuitry to offset dark noise  
The invention relates to a technique removing a dark voltage noise signal occurring at the time of light shielding of a photoelectric conversion device, simplifying the system configuration such...
7417675 On-chip black clamp system and method  
An image sensing system includes an image sensor and a black clamping circuit which reside on the same substrate. Particular embodiments use common components for both imaging and black clamping,...
7417669 Digital clamping circuit and digital clamping method  
A digital clamping circuit and a digital clamping method are provided which can effectively use the dynamic range of an output signal in black-level correction. When subtracting a black level...
7397506 Reducing the effect of noise in an imaging system  
A method to reduce the effect of noise on a pixel sensor element includes accumulating charge during an image capture operation (the accumulated charge representing a combination of noise and...
7397505 CMOS sensor with over-saturation abatement  
A method and apparatus are described that detect and correct for over-saturation lighting conditions in a CMOS Image Sensor.
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,...
7391448 Imaging device  
An object of the present invention is to provide an imaging device which can reliably correct dark current components that locally occur in an imaging sensor, such as those caused by an FDA. The...
7388608 Sample and hold circuit and active pixel sensor array sampling system utilizing same  
An active pixel sensor array sampling system includes a plurality of video circuits and reset circuits. A video circuit generates a video voltage from each one of the pixels of a column of pixels....
7385637 Method for determining image sensor reference image  
The present invention relates to a method for determining the reference image of an image sensor comprising a matrix of detector pixels. The method comprises the acquisition of a black image I N ...
7375753 Solid-state imager and camera system  
When making a potential of a floating node 0V at the time of nonselection, electrons leak from the floating node to a photodiode and noise is generated. A MOS type solid-state imaging device...
7355640 Image capturing device  
An image capturing device having a function of clamping an image signal. When the image capturing device is activated, a synchronous signal generating section begins creation of a horizontal...
7349015 Image capture apparatus for correcting noise components contained in image signals output from pixels  
An image capture apparatus includes first and second pixels. Each pixel has a sensor and a reading portion for reading out a signal from the sensor to an output line. The apparatus further includes...
7348533 Unit pixel of CMOS image sensor  
In a unit pixel of a CMOS image sensor which compensates for a dark current generated in a photo diode to enhance its driving range, the photo diode generates a charge in accordance with a received...
7339620 Image sensing apparatus having a signal processing device that uses a signal imaged in a non-exposure state to process a signal in an exposure state  
An apparatus has an image sensing device, and a signal processing device for performing a first image sensing operation for making the image sensing device perform an image sensing operation in an...
7330208 Electronic imaging system with adjusted dark floor correction  
An electronic imaging system includes a method for calibrating an image sensor having a array of pixels each used in capturing an image, the method comprising the steps of capturing first dark...
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...
7317481 Image data correction processing based on sensitivity  
A signal processing device includes a memory which stores correction data in advance. The signal processing device modifies the correction data stored in the memory on the basis of an image sensing...
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...
7315327 Imaging element, imaging device, and method of deterring misappropriation of imaging element  
The present invention provides an imaging element that can prevent misappropriation by a third party, an imaging device disposed with the imaging element, and a method of deterring misappropriation...
7298407 Method for reducing shutter latency while maintaining low dark current in an imager and minimizing energy consumption  
A method for reducing shutter latency while maintaining low dark current in the imager and minimizing energy consumption in a digital camera, the method including the steps of providing an imager...
7295238 Image signal processing device of image sensor  
An image-signal processing apparatus ( 1 ) designed to process the signals output from a CCD image sensor ( 10 ) that reads pixel data for one screen, line by line, divides the pixel data into a...
7295143 Semiconductor integrated circuit device  
There is a need for providing a variable amplifier circuit suited for a semiconductor integrated circuit and a high-performance camera preprocessing LSI using the variable amplifier circuit. At...
7283165 Method and apparatus for image processing using weighted defective pixel replacement  
A method of processing image data comprises obtaining a set of weighting coefficients to be used in calculating replacement pixel values associated with defective sensing elements of a detector...
7283163 Image processing apparatus providing noise correction  
In order to eliminate noises contained in signals output from a photoelectric conversion unit, an image processing apparatus is provided with a photoelectric conversion unit including a pixel and a...
7280142 Defective pixel detection and correction apparatus using target pixel and adjacent pixel data  
A solid-state imaging apparatus includes: a defective pixel detector ( 8 ) for extracting, from a signal output by a frame-reading solid-state image pickup element ( 2 ), pixel data for a target...
7280141 Fixed pattern noise subtraction in a digital image sensor  
A fixed pattern noise subtraction method in a digital imaging system incorporating a digital image sensor includes: acquiring a reference image of the digital image sensor when the digital image...
7280140 Image sensor reading during reset and reading on release from reset  
A solid state image sensor has an array of pixels in which each column has a reset voltage line and a read line. The sensor is reset and read a row at a time, with reset-related values held in a...
7274392 Electronic camera that sets an upper limit of an exposure time during dark image capture  
An electronic camera according to the present invention includes: an image-capturing element that outputs image-capturing signals; a shutter device that allows subject light pass through to the...
7274391 CCD having improved flushing by reducing power consumption and creating a uniform dark field while maintaining low dark current  
A digital camera includes a CCD operating with accumulation mode clocking for capturing an electronic representation of an image; and two or more clocks operatively and respectively connected to...
7268925 Image sensor optimization  
A method and apparatus are described for image sensor optimization. According to an embodiment of the invention, a method comprises capturing an image with an image sensor, the image sensor...
7259787 Digital black clamp circuit in electronic imaging systems  
The present invention is a black clamp circuit for an electronic imager having black reference pixels. The circuit includes an average value circuit determining an average of a number of the black...
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...
7245322 Imaging apparatus  
The invention provides an imaging apparatus in which when a difference in sensitivity between two photosensitive elements having different sensitivities is used to achieve a wide dynamic range, a...
7236199 Multi-tap camera  
A camera comprises a multitap imager, separate digitizing channels for each imager tap, adjustments for channel gain and black level, a pattern generator, and a channel balancer. The channel...
7221396 Digital camera having CMOS image sensor with improved dynamics and method for controlling a CMOS image sensor  
In a CMOS image sensor, correlated double sampling (CDS) is performed to reduce RESET noise: a first sampled signal is detected after RESET for the pixels, a second sampled value is determined at...
7218351 Image-sensing apparatus for compensating video signal of a plurality of channels  
An image-sensing apparatus for compensating video signal of a plurality of channels, adds an electric charge of a pilot signal on a signal vertically transferred in an image-sensing device 11 . A...
7196725 Image reading apparatus and computer readable storage medium  
In an X-ray film image reading apparatus, dark output distribution data of a CCD line sensor is corrected by using correction data. In order to suppress the influence of random noises on the...
7187409 Level difference correcting method and image pick-up device using the method  
An OB level difference is calculated from the luminance signal levels of at least two frames which are exposed for proper exposure time and for exposure time different from the proper exposure...
7173656 Method and apparatus for processing digital pixel output signals  
Briefly, in accordance with one embodiment of the invention, a digital camera includes: a digital imaging array including a plurality of pixels, and image processing circuitry to process the...
7161626 Image reading apparatus  
A CCD photoelectrically converts image information obtained from optically reading an original image, line by line, and outputs an image signal. Several of the photoelectric sensors of a CCD of the...
7145599 Image pickup apparatus and image pickup method using plural photoelectric conversion sections per pixel  
In an image pickup apparatus and image pickup method, an image pickup area where a plurality of pixels each having at least first and second photoelectric conversion sections are arranged in a...
7136100 Electronic still camera capable of removing noise component in image data and signal processing method thereof  
Upon depression of a shutter key of a key input unit, a sensed image (DATA 1 ) is captured by exposing a CCD for exposure time T 1 with a mechanical shutter opened, and a dark frame image (DATA 2...
7133072 Image processing apparatus having an image correction circuit and its processing method  
An image processing apparatus for processing an image sensed by an image sensing element such as a CCD sensor includes a dark correction circuit for making dark correction of the image, a defect...
7113210 Incorporating pixel replacement for negative values arising in dark frame subtraction  
An apparatus and method of processing images in a digital camera and improving the quality of images produced by camera processing software. In low-light digital camera photography, a dark frame...
7102672 Integrated CMOS imaging array dark current monitor  
A method, apparatus, and system for accounting for dark current in the output of an imaging array is presented. A dark current monitor on the monolithic semiconductor imaging array is provided. The...
7098950 Image sensor with stabilized black level and low power consumption  
The control inputs of reset switch elements 41 to 45 are commonly connected to a row reset line 51 . In a line black clamp type, cathodes as reset ends of photodiodes ( 31 ) of optical black...
7084911 Black level calibration method for imager with hysteresis comparison and adaptive step size  
The present invention provides a method and apparatus for calibrating a black level in an imager to reduce flicker noise. A first and a second range is set. The first range corresponds to a range...
7081608 Pixel with differential readout  
An imager in which two adjacent pixels share row and reset lines and a row selection circuitry while the output transistors of the two pixels are configured as a differential amplifier. In...
Matches 1 - 50 out of 286 1 2 3 4 5 6 >