Patents by Inventor Eiichi Funatsu

Eiichi Funatsu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11706537
    Abstract: An image sensor includes a plurality of pixels that is arranged in a matrix and each of which outputs a signal in response to incident light, wherein readout of data can be performed with respect to the plurality of pixels, and simultaneous readout of data of a plurality of columns of pixels can be performed, and at least one pixel of the plurality of columns of pixels to be read simultaneously can be read for phase detection with respect to each of divided sub-pixels. The image sensor is configured to, with n rows as a readout unit where n is an integer of 2 or more, perform readout for at least one sub-pixel of at least one pixel in one readout cycle within the readout unit, perform readout for each pixel including phase detection readout for the other sub-pixel of the at least one pixel in which the at least one sub-pixel has been read in the one readout cycle, in another readout cycle within the readout unit, and end the readout for the readout unit with the n+1 readout cycles.
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: July 18, 2023
    Assignee: OmniVision Technologies, Inc.
    Inventors: Hiroki Ui, Eiichi Funatsu
  • Publication number: 20230199341
    Abstract: An image sensor includes a plurality of pixels that is arranged in a matrix and each of which outputs a signal in response to incident light, wherein readout of data can be performed with respect to the plurality of pixels, and simultaneous readout of data of a plurality of columns of pixels can be performed, and at least one pixel of the plurality of columns of pixels to be read simultaneously can be read for phase detection with respect to each of divided sub-pixels. The image sensor is configured to, with n rows as a readout unit where a is an integer of 2 or more, perform readout for at least one sub-pixel of at least one pixel in one readout cycle within the readout unit, perform readout for each pixel including phase detection readout for the other sub-pixel of the at least one pixel in which the at least one sub-pixel has been read in the one readout cycle, in another readout cycle within the readout unit, and end the readout for the readout unit with the n+1 readout cycles.
    Type: Application
    Filed: April 7, 2022
    Publication date: June 22, 2023
    Applicant: OmniVision Technologies, Inc.
    Inventors: Hiroki Ui, Eiichi Funatsu
  • Patent number: 11647175
    Abstract: An optical system comprises an imaging lens for imaging an object to an image and a sensing pixel array for detecting lights from the object toward the image. The sensing pixel array comprises a first sensing pixel and a second sensing pixel, each sensing pixel comprising a microlens covering a one-dimensional series of photodiodes having n photodiodes. A photodiode at an end of the one-dimensional series of photodiodes of the first sensing pixel detects a first light from the object toward the image, and a photodiode at an opposite end of the one-dimensional series of photodiodes of the second sensing pixel detects a second light from the object toward the image, where the first light and the second light pass opposite parts of the imaging lens.
    Type: Grant
    Filed: December 5, 2020
    Date of Patent: May 9, 2023
    Assignee: OmniVision Technologies, Inc.
    Inventors: Richard Mann, Badrinath Padmanabhan, Boyd Fowler, Alireza Bonakdar, Eiichi Funatsu
  • Patent number: 11412190
    Abstract: An image sensor includes a photodiode array and a color filter array optically aligned with the photodiode array. The photodiode array includes a plurality of photodiodes disposed within respective portions of a semiconductor material. The color filter array includes a plurality of color filters arranged to form a plurality of tiled minimal repeating units. Each minimal repeating unit includes at least a first color filter with a red spectral photoresponse, a second color filter with a yellow spectral photoresponse, and a third color filter with a panchromatic spectral photoresponse.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: August 9, 2022
    Assignee: OMNIVISION TECHNOLOGIES, INC.
    Inventors: Chen-Wei Lu, Yin Qian, Eiichi Funatsu, Jin Li
  • Patent number: 11356626
    Abstract: An imaging device includes a photodiode array. The photodiodes include a first set of photodiodes configured as image sensing photodiodes and a second set of photodiodes configured as phase detection auto focus (PDAF) photodiodes. The PDAF photodiodes are arranged in at least pairs in neighboring columns and are interspersed among the image sensing photodiodes. Transfer transistors are coupled to corresponding photodiodes. The transfer transistors coupled to the image sensing photodiodes included in an active row of are controlled in response to a first transfer control signal or a second transfer control signal that control all of the image sensing photodiodes of the active row. A transfer transistor is coupled to one of a pair of the PDAF photodiodes of the active row. The first transfer transistor is controlled in response to a first PDAF control signal that is independent of the first or second transfer control signals.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: June 7, 2022
    Assignee: OmniVision Technologies, Inc.
    Inventors: Rui Wang, Eiichi Funatsu, Woon Il Choi, Keiji Mabuchi, Chin Poh Pang, Qingfei Chen, Da Meng, Vivian Wang
  • Publication number: 20220038664
    Abstract: An image sensor includes a photodiode array and a color filter array optically aligned with the photodiode array. The photodiode array includes a plurality of photodiodes disposed within respective portions of a semiconductor material. The color filter array includes a plurality of color filters arranged to form a plurality of tiled minimal repeating units. Each minimal repeating unit includes at least a first color filter with a red spectral photoresponse, a second color filter with a yellow spectral photoresponse, and a third color filter with a panchromatic spectral photoresponse.
    Type: Application
    Filed: August 3, 2020
    Publication date: February 3, 2022
    Inventors: Chen-Wei Lu, Yin Qian, Eiichi Funatsu, Jin Li
  • Publication number: 20210337144
    Abstract: An imaging device includes a photodiode array. The photodiodes include a first set of photodiodes configured as image sensing photodiodes and a second set of photodiodes configured as phase detection auto focus (PDAF) photodiodes. The PDAF photodiodes are arranged in at least pairs in neighboring columns and are interspersed among the image sensing photodiodes. Transfer transistors are coupled to corresponding photodiodes. The transfer transistors coupled to the image sensing photodiodes included in an active row of are controlled in response to a first transfer control signal or a second transfer control signal that control all of the image sensing photodiodes of the active row. A transfer transistor is coupled to one of a pair of the PDAF photodiodes of the active row. The first transfer transistor is controlled in response to a first PDAF control signal that is independent of the first or second transfer control signals.
    Type: Application
    Filed: April 22, 2020
    Publication date: October 28, 2021
    Inventors: Rui Wang, Eiichi Funatsu, Woon Il Choi, Keiji Mabuchi, Chin Poh Pang, Qingfei Chen, Da Meng, Vivian Wang
  • Publication number: 20210176447
    Abstract: An optical system comprises an imaging lens for imaging an object to an image and a sensing pixel array for detecting lights from the object toward the image. The sensing pixel array comprises a first sensing pixel and a second sensing pixel, each sensing pixel comprising a microlens covering a one-dimensional series of photodiodes having n photodiodes. A photodiode at an end of the one-dimensional series of photodiodes of the first sensing pixel detects a first light from the object toward the image, and a photodiode at an opposite end of the one-dimensional series of photodiodes of the second sensing pixel detects a second light from the object toward the image, where the first light and the second light pass opposite parts of the imaging lens.
    Type: Application
    Filed: December 5, 2020
    Publication date: June 10, 2021
    Applicant: OmniVision Technologies, Inc.
    Inventors: Richard Mann, Badrinath Padmanabhan, Boyd Fowler, Alireza Bonakdar, Eiichi Funatsu
  • Patent number: 10951840
    Abstract: A photodiode array circuit includes a plurality of photodiode circuits, binning circuitry, and a plurality of output circuits. Each of the plurality of photodiode circuits is coupled to receive a different one of the plurality of transfer control signals as a proximate photodiode circuit, proximate in a first direction. The binning circuitry is coupled to electrically connect the plurality of photodiode circuits into groups of photodiode circuit sense nodes in response to a binning control signal. Each of the plurality of output circuits is coupled to one of the groups of photodiode circuit sense nodes. Each of the plurality of output circuits are coupled to receive the output charge from the photodiode circuits in the one of the groups of photodiode circuit sense nodes and output an output signal to a bitline in response to the output charge and an row select signal.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: March 16, 2021
    Assignee: OmniVision Technologies, Inc.
    Inventors: Rui Wang, Hiroaki Ebihara, Eiichi Funatsu
  • Publication number: 20210067714
    Abstract: A photodiode array circuit includes a plurality of photodiode circuits, binning circuitry, and a plurality of output circuits. Each of the plurality of photodiode circuits is coupled to receive a different one of the plurality of transfer control signals as a proximate photodiode circuit, proximate in a first direction. The binning circuitry is coupled to electrically connect the plurality of photodiode circuits into groups of photodiode circuit sense nodes in response to a binning control signal. Each of the plurality of output circuits is coupled to one of the groups of photodiode circuit sense nodes. Each of the plurality of output circuits are coupled to receive the output charge from the photodiode circuits in the one of the groups of photodiode circuit sense nodes and output an output signal to a bitline in response to the output charge and an row select signal.
    Type: Application
    Filed: August 29, 2019
    Publication date: March 4, 2021
    Applicant: OMNIVISION TECHNOLOGIES, INC.
    Inventors: Rui Wang, Hiroaki Ebihara, Eiichi Funatsu
  • Patent number: 10840277
    Abstract: A solid-state imaging device is provided. The solid-state imaging device includes an imaging region having a plurality of pixels arranged in a two-dimensional array, in which the imaging region includes an effective pixel and a black reference pixel; and a shape of a floating diffusion portion in the effective pixel is different from that of a floating diffusion portion in the black reference pixel.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: November 17, 2020
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Shinjiro Kameda, Eiichi Funatsu
  • Patent number: 10778918
    Abstract: A solid-state imaging device is capable of simplifying the pixel structure to reduce the pixel size and capable of suppressing the variation in the characteristics between the pixels when a plurality of output systems is provided. A unit cell includes two pixels. Upper and lower photoelectric converters and, transfer transistors and connected to the upper and lower photoelectric converters, respectively, a reset transistor, and an amplifying transistor form the two pixels. A full-face signal line is connected to the respective drains of the reset transistor and the amplifying transistor. Controlling the full-face signal line, along with transfer signal lines and a reset signal line, to read out signals realizes the simplification of the wiring in the pixel, the reduction of the pixel size, and so on.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: September 15, 2020
    Assignee: Sony Corporation
    Inventors: Takashi Abe, Nobuo Nakamura, Tomoyuki Umeda, Keiji Mabuchi, Hiroaki Fujita, Eiichi Funatsu, Hiroki Sato
  • Patent number: 10750111
    Abstract: An image sensor includes a pixel array including a plurality of pixels. A bit line coupled to a column of pixels is separated in to a plurality of electrically portions that are coupled to corresponding portions of rows of the pixel array. A first switching circuit of a readout circuit is coupled to the bit line. A first switching circuit is configured to couple a bit line current source to the bit line to provide a DC current coupled to flow through the bit line and through the first switching circuit during a readout operation of a pixel coupled to the bit line. A second switching circuit is configured to couple and ADC to the bit line during the readout operation of the pixel. Substantially none of the DC current provided by the bit line current source flows through the second switching circuit during the readout operation of the pixel.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: August 18, 2020
    Assignee: OmniVision Technologies, Inc.
    Inventors: Hiroaki Ebihara, Rui Wang, Zheng Yang, Eiichi Funatsu
  • Patent number: 10582178
    Abstract: An active depth imaging system and method of operating the same captures illuminator-on and illuminator-off image data with each of a first and second imager. The illuminator-on image data includes information representing an imaged scene and light emitted from an illuminator and reflected off of objects within the imaged scene. The illuminator-off image data includes information representing the imaged scene without the light emitted from the illuminator. For each image set captured by the first and second imagers, illuminator-off image data is subtracted from the illuminator-on image data to identify the illuminated light within the scene. The depth of an object at which the light is incident on then is determined by the subtracted image data of the first and second imagers.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: March 3, 2020
    Assignee: OmniVision Technologies, Inc.
    Inventors: Zheng Yang, Eiichi Funatsu, Sohei Manabe, Keiji Mabuchi, Dajiang Yang, Duli Mao, Bowei Zhang
  • Patent number: 10506188
    Abstract: A solid-state imaging device is capable of simplifying the pixel structure to reduce the pixel size and capable of suppressing the variation in the characteristics between the pixels when a plurality of output systems is provided. A unit cell includes two pixels. Upper and lower photoelectric converters and, transfer transistors and connected to the upper and lower photoelectric converters, respectively, a reset transistor, and an amplifying transistor form the two pixels. A full-face signal line is connected to the respective drains of the reset transistor and the amplifying transistor. Controlling the full-face signal line, along with transfer signal lines and a reset signal line, to read out signals realizes the simplification of the wiring in the pixel, the reduction of the pixel size, and so on.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: December 10, 2019
    Assignee: Sony Corporation
    Inventors: Takashi Abe, Nobuo Nakamura, Tomoyuki Umeda, Keiji Mabuchi, Hiroaki Fujita, Eiichi Funatsu, Hiroki Sato
  • Publication number: 20190342512
    Abstract: A solid-state imaging device is capable of simplifying the pixel structure to reduce the pixel size and capable of suppressing the variation in the characteristics between the pixels when a plurality of output systems is provided. A unit cell includes two pixels. Upper and lower photoelectric converters and, transfer transistors and connected to the upper and lower photoelectric converters, respectively, a reset transistor, and an amplifying transistor form the two pixels. A full-face signal line is connected to the respective drains of the reset transistor and the amplifying transistor. Controlling the full-face signal line, along with transfer signal lines and a reset signal line, to read out signals realizes the simplification of the wiring in the pixel, the reduction of the pixel size, and so on.
    Type: Application
    Filed: July 15, 2019
    Publication date: November 7, 2019
    Applicant: SONY CORPORATION
    Inventors: Takashi Abe, Nobuo Nakamura, Tomoyuki Umeda, Keiji Mabuchi, Hiroaki Fujita, Eiichi Funatsu, Hiroki Sato
  • Patent number: 10425597
    Abstract: An image sensor system, comprising a pixel array that includes at least a first type pixel and a second type pixel, wherein each first type pixel is configured to sense light of a first optical spectral range; and each second pixel is configured to sense light of a second optical spectral range; an optical filter located above the pixel array, said optical filter configured to pass a third optical spectral range and a fourth optical spectral range that is different from the third optical spectral range, wherein the fourth optical spectral range is less than the second optical spectral range; a light source that emits light in a fifth optical spectral range, wherein the fifth optical spectral range at least overlaps with the fourth optical spectral range; and a controller that controls the image sensor system to selectively operate in a first mode that uses said first optical spectral range, and a second mode that uses said second optical spectral range.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: September 24, 2019
    Assignee: OmniVision Technologies, Inc.
    Inventors: Chen-Wei Lu, Ping-Hsu Chen, Yin Qian, Eiichi Funatsu
  • Publication number: 20190268556
    Abstract: An image sensor includes a pixel array including a plurality of pixels. A bit line coupled to a column of pixels is separated in to a plurality of electrically portions that are coupled to corresponding portions of rows of the pixel array. A first switching circuit of a readout circuit is coupled to the bit line. A first switching circuit is configured to couple a bit line current source to the bit line to provide a DC current coupled to flow through the bit line and through the first switching circuit during a readout operation of a pixel coupled to the bit line. A second switching circuit is configured to couple and ADC to the bit line during the readout operation of the pixel. Substantially none of the DC current provided by the bit line current source flows through the second switching circuit during the readout operation of the pixel.
    Type: Application
    Filed: December 17, 2018
    Publication date: August 29, 2019
    Inventors: Hiroaki Ebihara, Rui Wang, Zheng Yang, Eiichi Funatsu
  • Publication number: 20190246057
    Abstract: A method includes reading a first analog reference signal from a first storage node in a dual conversion gain pixel, and converting the first analog reference signal to a first digital reference signal using a comparator coupled to the dual conversion gain pixel. The method also includes reading a first analog image signal from the first storage node, and converting the first analog image signal to a first digital image signal using the comparator. A second analog image signal may be read from the first storage node and a second storage node in the dual conversion gain pixel, and the second analog image signal may be converted to a second digital image signal. A second analog reference signal may be read from the first storage node and the second storage node, and the second analog reference signal may be converted to a second digital reference signal using the comparator.
    Type: Application
    Filed: February 7, 2018
    Publication date: August 8, 2019
    Inventors: Hiroaki Ebihara, Rui Wang, Yandong Chen, Eiichi Funatsu
  • Patent number: 10356351
    Abstract: A method includes reading a first analog reference signal from a first storage node in a dual conversion gain pixel, and converting the first analog reference signal to a first digital reference signal using a comparator coupled to the dual conversion gain pixel. The method also includes reading a first analog image signal from the first storage node, and converting the first analog image signal to a first digital image signal using the comparator. A second analog image signal may be read from the first storage node and a second storage node in the dual conversion gain pixel, and the second analog image signal may be converted to a second digital image signal. A second analog reference signal may be read from the first storage node and the second storage node, and the second analog reference signal may be converted to a second digital reference signal using the comparator.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: July 16, 2019
    Assignee: OmniVision Technologies, Inc.
    Inventors: Hiroaki Ebihara, Rui Wang, Yandong Chen, Eiichi Funatsu