Accumulation Or Integration Time Responsive To Light Or Signal Intensity Patents (Class 348/297)
  • Patent number: 10708524
    Abstract: Various embodiments of the present technology comprise a method and apparatus for high dynamic range imaging. According to various embodiments, the method and apparatus for high dynamic range imaging is configured to select the “best” signal for each pixel location to construct an HDR output. In one embodiment, the “best” signal is select among various pixel signals and the pixel signal selected as the “best” signal is based on the value of the pixel signals and identification of non-saturated. If only one pixel value for a particular pixel location is non-saturated, then the “best” signal is the non-saturated signal. If more than one pixel value is non-saturated, then the “best” signal is the pixel signal with the greatest value. If two more pixel values are non-saturated and both have equally great values, then the “best” signal is the pixel signal with the shortest integration time.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: July 7, 2020
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Marko Mlinar, Simon Srot
  • Patent number: 10659713
    Abstract: An image sensing device includes a pixel array having a plurality of pixels each including first and second photoelectric converters that share a microlens, a plurality of column signal lines, and a readout circuit including a plurality of column circuits each configured to receive a signal of a corresponding column signal line. Each pixel includes first and second driving elements respectively configured to output signals corresponding to charges respectively generated by the first and second photoelectric converters to a corresponding column signal line. In a state in which signals are output from both the first and second driving elements included in a selected pixel to a column signal line corresponding to each of the plurality of column circuits, the readout circuit reads out a signal of the column signal line corresponding to the column circuit.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: May 19, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Noriyuki Shikina
  • Patent number: 10638037
    Abstract: An image-capturing device includes: an image sensor that includes an image-capturing area where an image of a subject is captured; a setting unit that sets image-capturing conditions to be applied to the image-capturing area; a selection unit that selects pixels to be used for interpolation from pixels present in the image-capturing area; and a generation unit that generates an image of the subject captured in the image-capturing area with signals generated through interpolation executed by using signals output from the pixels selected by the selection unit, wherein: the selection unit makes a change in selection of at least some of the pixels to be selected depending upon the image-capturing conditions set by the setting unit.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: April 28, 2020
    Assignee: NIKON CORPORATION
    Inventors: Takashi Shionoya, Toshiyuki Kanbara, Naoki Sekiguchi
  • Patent number: 10638055
    Abstract: Image processing can include receiving an aperture level and producing a full-color image. The full-color image can be produced by assigning a greater weight to first sensor pixels and assigning a lesser weight to second sensor pixels based on the received aperture level. The greater weight can exceed the lesser weight. An image sensor panel can include the first sensor pixels and the second sensor pixels. Each of the first sensor pixels can have a first color-filter-independent-photosensitivity (CFIP) and each of the second sensor pixels having a second CFIP. The first CFIP can be larger or smaller than the second CFIP.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: April 28, 2020
    Assignee: QUALCOMM Incorporated
    Inventor: Micha Galor Gluskin
  • Patent number: 10616523
    Abstract: First and second readout circuits, each having a respective floating diffusion node, are coupled to a photodetection element within a pixel of an integrated-circuit image sensor. Following an exposure interval in which photocharge is accumulated within the photodetection element, a first portion of the accumulated photocharge is transferred from the photodetection element to the first floating diffusion node to enable generation of a first output signal within the first readout circuit, and a second portion of the accumulated photocharge is transferred from the photodetection element to the second floating diffusion node to enable generation of a second output signal within the second readout circuit. A digital pixel value is generated based on the first and second output signals.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: April 7, 2020
    Assignee: Gigajot Technology, Inc.
    Inventors: Jiaju Ma, Saleh Masoodian
  • Patent number: 10609291
    Abstract: An endoscopic apparatus and method to capture an image of in-vivo tissue with automatic exposure control. For example, the method includes capturing image data on an image sensor and analyzing an indication of brightness of each pixel to determine whether the captured image data is saturated. When the image data is saturated, the method includes reducing the exposure period by a first increment, and repeating the capturing and analyzing steps until the captured image data is not saturated. When the captured image data is not saturated, in some embodiments, the method includes analyzing the indication of brightness of each pixel compared to a threshold indicative of use of a proportion of an available dynamic range of the image sensor, and when it is determined that the threshold has not been reached, increasing the exposure period by a second increment that has a magnitude relative to the first increment.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: March 31, 2020
    Assignee: King's College London
    Inventors: Frederic Festy, Richard Cook, Timothy Watson
  • Patent number: 10609296
    Abstract: An electronic device and an automatic exposure convergence method are provided. The electronic device includes an image sensor and a processor. The image sensor is configured to obtain a first frame. The first frame includes a plurality of sub-frame regions, and each of the sub-frame regions includes a plurality of pixel data. The plurality of pixel data are obtained based on different exposure times. The processor is coupled to the image sensor. The processor is configured to analyze the first frame to combine the pixel data having the same exposure times in the sub-frame regions into a plurality of second frames. The processor analyzes the plurality of second frame to obtain a plurality of exposure values. The processor performs an exposure convergence operation based on the plurality of exposure values.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: March 31, 2020
    Assignee: Guangzhou Tyrafos Semiconductior Technologies Co., LTD
    Inventors: Ping-Hung Yin, Jia-Shyang Wang
  • Patent number: 10594973
    Abstract: An image sensor architecture with multi-bit sampling is implemented within an image sensor system. A pixel signal produced in response to light incident upon a photosensitive element is converted to a multiple-bit digital value representative of the pixel signal. If the pixel signal exceeds a sampling threshold, the photosensitive element is reset. During an image capture period, digital values associated with pixel signals that exceed a sampling threshold are accumulated into image data.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: March 17, 2020
    Assignee: Rambus Inc.
    Inventors: Thomas Vogelsang, Michael Guidash, Song Xue, James E. Harris
  • Patent number: 10535689
    Abstract: A semiconductor device including photosensor capable of imaging with high resolution is disclosed. The semiconductor device includes the photosensor having a photodiode, a first transistor, and a second transistor. The photodiode generates an electric signal in accordance with the intensity of light. The first transistor stores charge in a gate thereof and converts the stored charge into an output signal. The second transistor transfers the electric signal generated by the photodiode to the gate of the first transistor and holds the charge stored in the gate of the first transistor. The first transistor has a back gate and the threshold voltage thereof is changed by changing the potential of the back gate.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: January 14, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Yoshiyuki Kurokawa
  • Patent number: 10531019
    Abstract: An image processing method is provided. The image processing method is applied in the electronic device. The image sensor is controlled to output the merged image and the color-block image. The merged image is converted into the image having the first brightness using the scaling algorithm. The color-block image is converted into the image having the second brightness using the interpolation algorithm, in which the first brightness is greater than the second brightness. The image having the first brightness and the image having the second brightness are merged to obtain a HDR image. An image processing apparatus and an electronic device are also provided.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: January 7, 2020
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP, LTD.
    Inventor: Cheng Tang
  • Patent number: 10361244
    Abstract: This solid-state imaging device 100 has: a photosensitive part that includes pixel portions 211, which are disposed in a matrix, and charge transfer parts 212 for transferring, by the column, the signal charge of the pixel portions; a plurality of charge storage parts 220 that accumulate the signal charges transferred by the plurality of charge transfer parts of the photosensitive part; a relay part 240 that relays the transfer of the signal charges transferred by the plurality of charge transfer parts to each charge storage part; an output part 230 that outputs the signal charges of the plurality of charge storage parts as electric signals; a first substrate 110 at which the photosensitive unit 210 is formed; and a second substrate 120 at which the charge storage part 220 and output unit 230 are formed.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: July 23, 2019
    Assignee: BRILLINICS INC.
    Inventors: Isao Takayanagi, Shunsuke Tanaka, Kazuya Mori, Katsuhiko Ariyoshi, Shinichiro Matsuo
  • Patent number: 10205901
    Abstract: An image sensor is provided, the image sensor including: an imaging unit that has a first imaging region and a second imaging region, and outputs: a first pixel signal generated according to light incident on the first imaging region; and a second pixel signal generated according to light incident on the second imaging region; a first ramp generating unit that generates a first ramp signal; a second ramp generating unit that generates a second ramp signal; a first signal converting unit that converts the first pixel signal into a first digital image signal based on a result of comparison between the first pixel signal and the first ramp signal; and a second signal converting unit that converts the second pixel signal into a second digital image signal based on a result of comparison between the second pixel signal and the second ramp signal.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: February 12, 2019
    Assignee: NIKON CORPORATION
    Inventors: Hironobu Murata, Shiro Tsunai, Takashi Kuriyama
  • Patent number: 10154220
    Abstract: Multiple image data subframes corresponding to respective portions of an exposure interval are generated within a sensor device of an image system. Depending on whether the exposure interval exceeds one or more exposure time thresholds, data representative multiple image data subframes are output from the image sensor device in one of at least two formats, including a first format in which each of the subframes of image data is output in its entirety, and a second format in which a logical combination of at least two of the subframes of image data is output instead of the at least two of the subframes of image data such that the total volume of image data output from the image sensor device is reduced relative to the first format.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: December 11, 2018
    Assignee: Rambus Inc.
    Inventors: Thomas Vogelsang, Jay Endsley, Michael Guidash, Craig M. Smith
  • Patent number: 10142563
    Abstract: To generate multiple types of images of the same subject. An electronic apparatus includes a drive control unit that controls the drive of an image sensor, a division unit that divides an image capture region of the image sensor into at least first and second regions, and an image generation unit that generates a first image by capturing an image of the same subject in the first region and generates a second image by capturing an image of the same subject in the second region.
    Type: Grant
    Filed: July 4, 2013
    Date of Patent: November 27, 2018
    Assignee: NIKON CORPORATION
    Inventors: Takashi Shionoya, Toshiyuki Kanbara, Masakazu Sekiguchi
  • Patent number: 10122913
    Abstract: An image capturing apparatus includes: an image sensor; a readout unit capable of switching between carrying out a first readout operation of reading out signals from photoelectric conversion elements corresponding to a first number of pupil areas and a signal obtained by adding together signals from the photoelectric conversion elements corresponding to all of the pupil areas, and a second readout operation of reading out signals from photoelectric conversion elements corresponding to a second number and a signal obtained by adding together signals from the photoelectric conversion elements corresponding to all of the pupil areas; and a control unit that controls whether to cause the readout unit to carry out the first readout operation or the second readout operation in accordance with a status of the image capturing apparatus.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: November 6, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Jun Kameda
  • Patent number: 10057515
    Abstract: The present invention is applied to an image pickup apparatus for which, for example, a CMOS solid-state image pickup element is used. One screen image is divided into a plurality of blocks, and a motion is detected for each of the blocks to control the exposure time of the block.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: August 21, 2018
    Assignee: Sony Corporation
    Inventor: Seiji Kobayashi
  • Patent number: 10009536
    Abstract: The present disclosure generally relates to user interfaces. In some examples, the electronic device transitions between user interfaces for capturing photos based on data received from a first camera and a second camera. In some examples, the electronic device provides enhanced zooming capabilities that result in visual pleasing results for a displayed digital viewfinder and for captured videos. In some examples, the electronic device provides user interfaces for transitioning a digital viewfinder between a first camera with an applied digital zoom to a second camera with no digital zoom. In some examples, the electronic device prepares to capture media at various magnification levels. In some examples, the electronic device enhanced capabilities for navigating through a plurality of values.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: June 26, 2018
    Assignee: Apple Inc.
    Inventors: Behkish J. Manzari, Pavel Pivo{hacek over (n)}ka, Alan C. Dye, Stephen O. Lemay
  • Patent number: 9998626
    Abstract: There is provided a scanner including: a first light source that generates light of a first wavelength; a mark that emits light in a case where light of the first wavelength is received; a deviation calculation section that calculates a deviation between a plurality of sensors based on sensor outputs acquired in such a way that the sensors detect light emitted from the same mark; a second light source that generates light which does not include light of the first wavelength; and an image generation section that generates image data based on the sensor outputs, acquired in such a way that the plurality of sensors detect light acquired when light from the second light source is stuck on and is reflected in the document, and the deviation.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: June 12, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Takahiro Netsu
  • Patent number: 9836132
    Abstract: An image processing method capable of detecting noise includes adjusting a lighting unit to acquire an over-exposure image, comparing each pixel of the over-exposure image with at least one threshold value, labeling a pixel of the over-exposure image as the noise while bright intensity of the pixel is lower than the threshold value, and removing the noise to execute a displacement detecting calculation.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: December 5, 2017
    Assignee: PixArt Imaging Inc.
    Inventors: Chun-Wei Chen, Ren-Hau Gu
  • Patent number: 9838624
    Abstract: Imagers and associated devices and systems are disclosed herein. In one embodiment, an imager includes a pixel array and control circuitry operably coupled to the pixel array. The pixel array includes an imaging pixel configured to produce a reset signal and a non-imaging pixel configured to produce a nominal reset signal. The control circuitry is configured to produce an output signal based at least in part on one of (a) the nominal reset signal when distortion at the imaging pixel exceeds a threshold and (b) the reset signal when distortion does not exceed the threshold.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: December 5, 2017
    Assignee: Micron Technology, Inc.
    Inventor: Espen A. Olsen
  • Patent number: 9787926
    Abstract: A solid-state image apparatus includes a pixel unit including a plurality of pixels arranged in a matrix, a plurality of amplifiers each provided to each of columns of the pixel unit, and each configured to amplify a signal output from a pixel in the corresponding one of the columns, a plurality of comparison units each provided to each of the plurality of amplifiers, and each configured to compare a level of an output signal from a corresponding one of the plurality of amplifiers with a predetermined threshold value and a control unit configured to control a gain of each of the plurality of amplifiers based on a result of comparing of a corresponding one of the plurality of comparison units.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: October 10, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Daisuke Yoshida
  • Patent number: 9674465
    Abstract: Embodiments of an apparatus and process are described. The process includes capturing a first image frame using an image sensor, the image sensor including a pixel array comprising a plurality of pixels arranged in rows and columns and a color filter array optically coupled to the pixel array. A region of interest within the first image frame is determined, and the exposure time of the image sensor is adjusted to eliminate a substantial fraction of the visible light captured by the image sensor. A rolling shutter procedure is used with the pixel array to capture at least one subsequent frame using the adjusted exposure time, and a source of invisible radiation is activated while the rolling shutter enters the region of interest and deactivated when the rolling shutter exits the region of interest. Finally, an image of the region of interest is output. Other embodiments are disclosed and claimed.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: June 6, 2017
    Assignee: OmniVision Technologies, Inc.
    Inventors: Jizhang Shan, Ming-Kai Hsu
  • Patent number: 9639769
    Abstract: An image of a portion of a person's body is accessed, the image having been captured by an image capture device. Using the image, measurements of characteristics in the image are obtained, the characteristics in the image having been selected based on a statistical analysis of characteristics (i) in a plurality of first images taken directly of a person and (ii) in a plurality of second images taken of an image of a person. Based on a liveness function, a score for the image is determined using the obtained measurements of the characteristics in the image. A threshold value is accessed. The score of the image is compared to the accessed threshold value. Based on the comparison of the score of the image to the accessed threshold value, the image is determined to be have been taken by the image capture device imaging the portion of the person's body.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: May 2, 2017
    Assignee: Accenture Global Services Limited
    Inventors: Florian Juveneton, Alessio Cavallini
  • Patent number: 9564466
    Abstract: Provided is a semiconductor device with improved performance. The semiconductor device includes a photodiode having a charge storage layer (n-type semiconductor region) and a surface layer (p-type semiconductor region), and a transfer transistor having a gate electrode and a floating diffusion. The surface layer (p-type semiconductor region) of a second conductive type formed over the charge storage layer (n-type semiconductor region) of a first conductive type includes a first sub-region having a low impurity concentration, and a second sub-region having a high impurity concentration. The first sub-region is arranged closer to the floating diffusion than the second sub-region.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: February 7, 2017
    Assignee: Renesas Electronics Corporation
    Inventors: Takeshi Kamino, Yotaro Goto
  • Patent number: 9521338
    Abstract: In an integrated-circuit image sensor, binary sample values are read out from an array of pixels after successive sampling intervals that collectively span an image exposure interval and include at least two sampling intervals of unequal duration. Each pixel of the array is conditionally reset after each of the successive sampling intervals according to whether the pixel yields a binary sample in a first state or a second state.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: December 13, 2016
    Assignee: Rambus Inc.
    Inventors: Thomas Vogelsang, David Geoffrey Stork, Jie Shen, Yeuyong Wang, Marko Aleksic
  • Patent number: 9516238
    Abstract: A method and apparatus apply one of a plurality of different levels of noise suppression to a pixel based on a difference between illuminance values for the pixel in the presence of (a) both a flash and ambient light and (b) without the flash.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: December 6, 2016
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Peter I. Majewicz, Jennifer L. Melin
  • Patent number: 9438836
    Abstract: A solid-state image sensor has a plurality of pixels including at least a first pixel configured to detect light in a first wavelength range and a second pixel configured to detect light in a second wavelength range, the second wavelength range including a wavelength range on a longer-wavelength side than the first wavelength range. The sensor includes a control portion configured to supply a control signal to the first and second pixels such that a charge accumulation period of the first pixel is different from a charge accumulation period of the second pixel.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: September 6, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuaki Tashiro, Katsuhisa Ogawa
  • Patent number: 9430709
    Abstract: An image of a portion of a person's body is accessed, the image having been captured by an image capture device. Using the image, measurements of characteristics in the image are obtained, the characteristics in the image having been selected based on a statistical analysis of characteristics (i) in a plurality of first images taken directly of a person and (ii) in a plurality of second images taken of an image of a person. Based on a liveness function, a score for the image is determined using the obtained measurements of the characteristics in the image. A threshold value is accessed. The score of the image is compared to the accessed threshold value. Based on the comparison of the score of the image to the accessed threshold value, the image is determined to be have been taken by the image capture device imaging the portion of the person's body.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: August 30, 2016
    Assignee: Accenture Global Services Limited
    Inventors: Florian Juveneton, Alessio Cavallini
  • Patent number: 9432602
    Abstract: There is provided a solid-state imaging device including a pixel array section having a plurality of unit pixels two-dimensionally arranged therein, the unit pixels including at least a photoelectric conversion section, a charge holding section, a transfer section, and a reset section, and a drive control section which controls driving of the unit pixels in a manner that a voltage as a signal level and a voltage as a reset level are each read out serially per row. The drive control section controls readout of the voltage of the charge holding section in accordance with initialization of the charge holding section performed by the reset section before the charge transfer by the transfer section.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: August 30, 2016
    Assignee: SONY CORPORATION
    Inventors: Takafumi Takatsuka, Yusuke Oike, Masaki Sakakibara
  • Patent number: 9426384
    Abstract: The dynamic range of a pixel is increased by using selective photosensor resets during a frame time of image capture at a timing depending on the light intensity that the pixel will be exposed to during the frame time. Pixels that will be exposed to high light intensity are reset later in the frame than pixels that will be exposed to lower light intensity.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: August 23, 2016
    Assignee: Micron Technology, Inc.
    Inventor: Nikolai E. Bock
  • Patent number: 9380229
    Abstract: In at least one example embodiment, a method of determining motion in an image includes acquiring pixel data from a plurality of pixels in an image sensor, the plurality of pixels having respective response ranges, the response range of at least a first pixel of the pixels including a linear response range and a logarithmic response range, the plurality of pixels configured to produce pixel data according to light of the image in a scene and the response ranges and determining the motion based on the pixel data generated across the response ranges including the logarithmic response range of the at least first pixel.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: June 28, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: German Voronov
  • Patent number: 9380247
    Abstract: A focus detection apparatus comprises a plurality of sensor groups, each comprising a plurality of sensors, each including a photoelectric converter and a storage portion, and controls part of the sensor groups according to a first accumulation method, in which charge generated by a photoelectric converter is accumulated in itself, and to a second accumulation method, in which charge generated by a photoelectric converter is accumulated in a storage portion. A sensor group corresponding to a selected focus detection area is controlled according to the first accumulation method, and a sensor group adjacent to the sensor group controlled according to the first accumulation method is controlled according to the second accumulation method. A monitor unit monitors a signal level of the charge stored in the storage portion corresponding to the photoelectric converter controlled according to the second accumulation method.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: June 28, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takashi Ichimiya
  • Patent number: 9363455
    Abstract: There is provided a solid-state image pickup device including a pixel area in which a plurality of pixels are arranged. The pixels include an accumulation section accumulating a charge acquired by photoelectric conversion, a plurality of detection sections detecting the charge accumulated in the accumulation section, a connection separation control section controlling connection or separation of the detection sections, an output section outputting a first signal corresponding to a potential of each detection section in a separation state in which the connection separation control section separates the detection sections, or outputting a second signal corresponding to a potential of each detection section in a connection state in which the connection separation control section connects the detection sections, and an output selection section selecting whether to output the first signal from the output section or output the second signal from the output section, based on a value of the first signal.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: June 7, 2016
    Assignee: SONY CORPORATION
    Inventor: Takeshi Takeda
  • Patent number: 9332174
    Abstract: A focus detection apparatus comprises a pair of line sensors that generate a pair of image signals by photo-electrically converting an object image, calculation unit configured to calculate a defocus amount using the image signals, and control unit configured to control the line sensors to execute a charge accumulation operation until output levels of the line sensors reach a first voltage level based on a saturated voltage, wherein the control unit switches the saturated voltage based on luminance information.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: May 3, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takashi Ichimiya
  • Patent number: 9307167
    Abstract: An image pickup device includes: an image pickup section including a plurality of pixels, the pixels each including a photoelectric conversion element; a drive section performing a readout operation and a reset operation of a signal electric charge, the signal electric charge being accumulated in the pixel; and a correction section correcting a timing of performing the reset operation to allow an afterimage in an image output from the image pickup section to be reduced.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: April 5, 2016
    Assignee: SONY CORPORATION
    Inventor: Yasuhiro Yamada
  • Patent number: 9307141
    Abstract: A focus detection device, a photoelectric conversion system, and a method of driving the focus detection device are provided in which a length of an electric charge accumulation period is determined based on a signal level based on an electric charge accumulated by a photoelectric converter in a sub-accumulation period.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: April 5, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yukihiro Kuroda
  • Patent number: 9288403
    Abstract: There is provided an image processing circuit including a sub frame signal generation unit configured to receive n pieces of image information of n images which are obtained by photographing the same scene under n (n is a natural number equal to or greater than 2) exposure conditions and the n exposure conditions at the time of the photographing as input. When a display video of one scene is constituted by a maximum of n sub frames, the sub frame signal generation unit generates video signals of the maximum of n sub frames by controlling a light emission time of light emission elements for each sub frame according to the n exposure conditions.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: March 15, 2016
    Inventor: Koichi Maeyama
  • Patent number: 9275576
    Abstract: An image processing apparatus is disclosed. The image processing apparatus includes a display panel and comprises a control section configured to control a duty pulse width for controlling an illumination period within a horizontal line period on a timing synchronized with a horizontal synchronization pulse.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: March 1, 2016
    Assignee: JOLED Inc.
    Inventors: Mitsuru Tada, Atsushi Ozawa
  • Patent number: 9262833
    Abstract: A methodology for performing a depth estimation procedure with defocused images under extreme lighting conditions includes a camera device with a sensor for capturing blur images of a photographic target under extreme lighting conditions. The extreme lighting conditions may include over-exposed conditions and/or under-exposed conditions. The camera device also includes a depth generator that performs the depth estimation procedure by utilizing the captured blur images. The depth estimation procedure includes a clipped-pixel substitution procedure to compensate for the extreme lighting conditions.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: February 16, 2016
    Assignee: Sony Corporation
    Inventors: Pingshan Li, Kensuke Miyagi
  • Patent number: 9258470
    Abstract: An example composite imaging system includes a first imaging system further comprising a first image sensor and a first aperture anterior to the first image sensor. The first aperture (i) is defined by an inner perimeter and an outer perimeter and (ii) defines, at least in part, a field of view of the first imaging system. The first imaging system further includes a plurality of reflectors posterior to the first aperture that are configured to redirect light that crosses the first aperture to the first image sensor. The first image sensor, the first aperture, and the plurality of reflectors are arranged around a common optical axis. The composite imaging system further includes a second imaging system arranged substantially anterior to the first imaging system. The second imaging system is arranged such that the second imaging system is outside a field of view of the first imaging system.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: February 9, 2016
    Assignee: Google Inc.
    Inventors: Changyin Zhou, Roman Lewkow
  • Patent number: 9237276
    Abstract: To capture an image, the image sensing period of this image is subdivided into a plurality of successive illumination periods, and the value which is assigned to each pixel to capture the image is the sum of the integrals of intensity of illumination of this pixel over each of said successive illumination periods. According to the invention, this sum is weighted by an apodization function in order to emulate a mechanical shutter. Temporal aliasing issues and temporal ringing artifacts of digital imaging are prevented or at least limited.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: January 12, 2016
    Assignee: Thomson Licensing
    Inventors: Pascal Bourdon, Jonathan Kervec, Didier Doyen
  • Patent number: 9219090
    Abstract: A solid-state image capturing device including: a semiconductor substrate having a photosensitive surface including a matrix of pixels as respective photoelectric converters; and a photochromic film disposed in a light path through which light is applied to each of the photoelectric converters, the photochromic film being made of a photochromic material having a light transmittance variable depending on the intensity of applied light in a predetermined wavelength range; wherein the light transmittance has a half-value period shorter than one frame during which pixel signals generated by the pixels are read from all the pixels.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: December 22, 2015
    Assignee: SONY CORPORATION
    Inventors: Kyoko Izuha, Kouichi Harada
  • Patent number: 9204056
    Abstract: There is provided an image pickup apparatus including: a control unit generating exposure time control data in which an exposure time of an image sensor is set in pixel region units; and an image sensor inputting the exposure time control data and carrying out image acquisition based on exposure time control in the pixel region units. The control unit successively and sequentially generates the exposure time control data in region units based on luminance information in the pixel region units that form part of a preceding picked-up image and outputs the exposure time control data to the image sensor. The image sensor inputs the exposure time control data in the region units from the control unit and successively and sequentially uses the inputted exposure time control data to carry out the image acquisition based on the exposure time control in the pixel region units.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: December 1, 2015
    Assignee: Sony Corporation
    Inventors: Shun Kaizu, Tomoo Mitsunaga, Kensei Jo, Teppei Kurita
  • Patent number: 9191560
    Abstract: An image capturing apparatus comprises a photoelectric conversion unit that performs photoelectric conversion on incident light that has passed through an imaging lens and outputs an electric signal, the photoelectric conversion unit including a plurality of two-dimensionally arranged pixels, and a plurality of micro lenses formed between the imaging lens and the photoelectric conversion unit. The plurality of micro lenses respectively corresponds to a plurality of areas in the photoelectric conversion unit and each of the areas includes a predetermined number of pixels. Among the pixels, those whose receiving quantity of light is small in each area due to a characteristic of an optical system including the imaging lens and the micro lenses and a characteristic of the photoelectric conversion unit are configured as pixels for use in calculation of a reference value for the electric signals output from the photoelectric conversion unit.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: November 17, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Satoshi Suzuki
  • Patent number: 9185304
    Abstract: The present invention is applied to an image pickup apparatus for which, for example, a CMOS solid-state image pickup element is used. One screen image is divided into a plurality of blocks, and a motion is detected for each of the blocks to control the exposure time of the block.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: November 10, 2015
    Assignee: Sony Corporation
    Inventor: Seiji Kobayashi
  • Patent number: 9179073
    Abstract: A solid-state imaging device is provided that includes a pixel array section having pixels which detect a physical quantities that are arranged in two dimensions of a matrix; an Analog-Digital (AD) converting section that performs AD conversion for a plurality of channels of analog pixel signals which are read-out from the pixel array section; and a control section that sets quantized units AD-converted by the AD conversion section according to a gain setting of the unit pixel signal, where the control section determines a grayscale number of digital outputs AD-converted for at least one channel of the unit pixel signals according to the gain setting of the pixel signal.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: November 3, 2015
    Assignee: Sony Corporation
    Inventor: Keiji Mabuchi
  • Patent number: 9148599
    Abstract: An image sensor and an image sensing method are provided. The image sensor includes a semiconductor substrate; a photoelectric converter comprising a bias unit, which comprises a first electrode and a second electrode, and an organic photoelectric conversion layer, which selectively absorbs light and converts the light into electrons; a via contacting the second electrode to connect the photoelectric converter with the semiconductor substrate; a storage node configured to store electrons; a read-out unit to converts charge transferred from the storage node into an image signal; a pixel array comprising a plurality of pixels, each of which comprises an intermediate insulating layer; and an output circuit configured to read out the image signal from the pixel array. The quantity of light received by the organic photoelectric conversion layer is adjusted by a bias change of the bias unit.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: September 29, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Chul Sul, Hirosige Goto, Kyung Ho Lee
  • Patent number: 9137435
    Abstract: A focus detection apparatus for performing phase difference detection type focus detection includes sensor units each configured to generate a signal used for detecting a phase difference, a setting unit configured to set one or more sensor units as determination targets, a determination unit configured to sequentially select a sensor unit from the determination targets, and repeatedly determine whether a signal generated by the selected sensor unit satisfies a termination condition of having a peak value greater than a threshold, and a detection unit configured to perform focus detection using the signal that satisfies the termination condition. The apparatus operates in a first mode and then shift to a second mode. The setting unit includes, in the determination targets in the second mode, a sensor unit that is not included in the determination targets in the first mode.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: September 15, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hidetoshi Hayashi, Tatsuhiko Yamazaki
  • Patent number: 9077924
    Abstract: An image sensing device and image sensing method are described herein. By way of example, the imaging sensing device includes a two-dimensional array of light sensing elements, each light sensing element being configured to generate an output signal indicative of an intensity level of light impinging on the light sensing element, one or more analog-to-digital converters configured to digitize output signals read out from the array of light sensing elements to generate digital output pixel values, a control circuit configured to generate digital pixel reset values, and a compression module configured to receive the digital pixel reset values and to generate a compressed digital pixel reset value corresponding to each digital pixel reset value.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: July 7, 2015
    Assignees: Sony Corporation, Pixim, Inc.
    Inventors: Ping Wah Wong, Thomas Richard Ayers
  • Patent number: 9064983
    Abstract: A solid-state imaging device includes: a semiconductor substrate having a light receiving surface sectioned for red, green, blue, and white pixels arranged in a matrix with photodiodes formed thereon; color filters formed on the semiconductor substrate in light incident paths to the photodiodes of the respective formation regions of the red, green, and blue pixels and respectively transmitting lights in red, green, and blue wavelength regions; and photochromic films formed on the semiconductor substrate in the light incident path to the photodiodes in the formation regions of at least some of the white pixels, and containing a photochromic material having light transmittance varying in response to incident light intensity in a predetermined wavelength region, wherein a half period of the light transmittance of the photochromic films is shorter than one frame as a period in which pixel signals obtained in the pixels are read out with respect to all pixels.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: June 23, 2015
    Assignee: SONY CORPORATION
    Inventors: Kyoko Izuha, Kouichi Harada