Patents by Inventor Mie Ishii

Mie Ishii 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: 11765487
    Abstract: An imaging apparatus is provided in which signals from a plurality of pixels are output to signal output lines during a predetermined reading period, a first reading mode and a second reading mode where analog-to-digital (AD) conversion circuits perform AD conversion on the signals are included, and the reading period includes a first period from when the signals from the pixels are output to the signal output lines to when the AD conversion circuits start AD conversion on the signals a predetermined time later, and a second period where the AD conversion circuits perform the AD conversion on the signals from the pixels, the reading period is equal between the first and second reading modes, and lengths of the first and second periods are different from each other.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: September 19, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tomonaga Iwahara, Mie Ishii
  • Patent number: 11719908
    Abstract: An image sensor includes a pixel portion in which a plurality of unit pixels each having one micro lens and a plurality of photoelectric conversion portions are arrayed in a matrix, a signal readout portion that reads out signals accumulated in the photoelectric conversion portions and converts the read signals to digital signals, a signal processor that processes signals read out by the signal readout portion and has an image capture signal processor that performs signal processing for generating a captured image on signals read out by the signal readout portion and a focus detection signal processor that performs signal processing for focus detection on signals read out by the signal readout portion, and an output portion that outputs signals processed by the signal processor.
    Type: Grant
    Filed: October 11, 2022
    Date of Patent: August 8, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Mie Ishii, Ken Sasaki
  • Publication number: 20230037107
    Abstract: An image sensor includes a pixel portion in which a plurality of unit pixels each having one micro lens and a plurality of photoelectric conversion portions are arrayed in a matrix, a signal readout portion that reads out signals accumulated in the photoelectric conversion portions and converts the read signals to digital signals, a signal processor that processes signals read out by the signal readout portion and has an image capture signal processor that performs signal processing for generating a captured image on signals read out by the signal readout portion and a focus detection signal processor that performs signal processing for focus detection on signals read out by the signal readout portion, and an output portion that outputs signals processed by the signal processor.
    Type: Application
    Filed: October 11, 2022
    Publication date: February 2, 2023
    Inventors: Mie Ishii, Ken Sasaki
  • Patent number: 11493729
    Abstract: An image sensor includes a pixel portion in which a plurality of unit pixels each having one micro lens and a plurality of photoelectric conversion portions are arrayed in a matrix, a signal readout portion that reads out signals accumulated in the photoelectric conversion portions and converts the read signals to digital signals, a signal processor that processes signals read out by the signal readout portion and has an image capture signal processor that performs signal processing for generating a captured image on signals read out by the signal readout portion and a focus detection signal processor that performs signal processing for focus detection on signals read out by the signal readout portion, and an output portion that outputs signals processed by the signal processor.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: November 8, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Mie Ishii, Ken Sasaki
  • Publication number: 20220329749
    Abstract: An imaging apparatus is provided in which signals from a plurality of pixels are output to signal output lines during a predetermined reading period, a first reading mode and a second reading mode where analog-to-digital (AD) conversion circuits perform AD conversion on the signals are included, and the reading period includes a first period from when the signals from the pixels are output to the signal output lines to when the AD conversion circuits start AD conversion on the signals a predetermined time later, and a second period where the AD conversion circuits perform the AD conversion on the signals from the pixels, the reading period is equal between the first and second reading modes, and lengths of the first and second periods are different from each other.
    Type: Application
    Filed: April 4, 2022
    Publication date: October 13, 2022
    Inventors: Tomonaga Iwahara, Mie Ishii
  • Patent number: 11381772
    Abstract: An image pickup element has a configuration in which a pixel region substrate and a readout circuit substrate are stacked. On a pixel region substrate, a plurality of unit pixels configured by a micro lens and a plurality of photoelectric converters are arranged in the horizontal direction and the vertical direction. On a readout circuit substrate, a plurality of readout circuits that read out a signal based on charges stored in the photoelectric converter is arranged in the horizontal and vertical directions. In the unit pixels that are adjacent to each other in the horizontal direction (or the vertical direction), a first photoelectric converter of a first unit pixel and a second photoelectric converter of a second unit pixel share one readout circuit.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: July 5, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mie Ishii, Nobuhiro Takeda
  • Patent number: 11252354
    Abstract: An image sensor comprises: a pixel unit including a plurality of first blocks each of which includes a plurality of first pixels shielded from light and a plurality of second blocks each of which includes a plurality of second pixels that are not shielded from light; and a controller that controls a plurality of readout operations for processing, in parallel, pixel signals read out from the plurality of first blocks and the plurality of second blocks in the pixel unit. The controller performs control so as to end readout of pixel signals from at least a predetermined portion of the first pixels included in each of the plurality of first blocks, before readout of pixel signals from the plurality of second blocks is started.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: February 15, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Mie Ishii, Kazuki Ohshitanai
  • Patent number: 11190720
    Abstract: An image sensor comprises a first circuit board and a second circuit board stacked so as to overlap each other. The first circuit board comprises a pixel region in which first pixels shielded from light and second pixels not shielded from light are arranged in a matrix. Each pixel has a photoelectric conversion unit and a circuit that outputs a pulse signal indicative of incidence of photon. The second circuit board comprises a counter region in which first counters that counts pulse signals from the first pixels and second counters that count pulse signals from the second pixels are arranged in a matrix, and a peripheral circuit region including a circuit that controls driving of the pixels and counters. At least part of the peripheral circuit region is arranged in a region that overlaps with the first pixels.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: November 30, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Mie Ishii
  • Publication number: 20210318515
    Abstract: An image sensor includes a pixel portion in which a plurality of unit pixels each having one micro lens and a plurality of photoelectric conversion portions are arrayed in a matrix, a signal readout portion that reads out signals accumulated in the photoelectric conversion portions and converts the read signals to digital signals, a signal processor that processes signals read out by the signal readout portion and has an image capture signal processor that performs signal processing for generating a captured image on signals read out by the signal readout portion and a focus detection signal processor that performs signal processing for focus detection on signals read out by the signal readout portion, and an output portion that outputs signals processed by the signal processor.
    Type: Application
    Filed: May 25, 2021
    Publication date: October 14, 2021
    Inventors: Mie Ishii, Ken Sasaki
  • Publication number: 20210314513
    Abstract: An image pickup element has a configuration in which a pixel region substrate and a readout circuit substrate are stacked. On a pixel region substrate, a plurality of unit pixels configured by a micro lens and a plurality of photoelectric converters are arranged in the horizontal direction and the vertical direction. On a readout circuit substrate, a plurality of readout circuits that read out a signal based on charges stored in the photoelectric converter is arranged in the horizontal and vertical directions. In the unit pixels that are adjacent to each other in the horizontal direction (or the vertical direction), a first photoelectric converter of a first unit pixel and a second photoelectric converter of a second unit pixel share one readout circuit.
    Type: Application
    Filed: April 2, 2021
    Publication date: October 7, 2021
    Inventors: Mie Ishii, Nobuhiro Takeda
  • Patent number: 11048063
    Abstract: An image sensor includes a pixel portion in which a plurality of unit pixels each having one micro lens and a plurality of photoelectric conversion portions are arrayed in a matrix, a signal readout portion that reads out signals accumulated in the photoelectric conversion portions and converts the read signals to digital signals, a signal processor that processes signals read out by the signal readout portion and has an image capture signal processor that performs signal processing for generating a captured image on signals read out by the signal readout portion and a focus detection signal processor that performs signal processing for focus detection on signals read out by the signal readout portion, and an output portion that outputs signals processed by the signal processor.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: June 29, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Mie Ishii, Ken Sasaki
  • Publication number: 20210014445
    Abstract: An image sensor comprises a first circuit board and a second circuit board stacked so as to overlap each other. The first circuit board comprises a pixel region in which first pixels shielded from light and second pixels not shielded from light are arranged in a matrix. Each pixel has a photoelectric conversion unit and a circuit that outputs a pulse signal indicative of incidence of photon. The second circuit board comprises a counter region in which first counters that counts pulse signals from the first pixels and second counters that count pulse signals from the second pixels are arranged in a matrix, and a peripheral circuit region including a circuit that controls driving of the pixels and counters. At least part of the peripheral circuit region is arranged in a region that overlaps with the first pixels.
    Type: Application
    Filed: July 8, 2020
    Publication date: January 14, 2021
    Inventor: Mie Ishii
  • Patent number: 10638072
    Abstract: A control apparatus (106) includes an acquirer (106a) which acquires a first imaging signal that is read in a first mode from a first pixel area of an image sensor and a second imaging signal that is read in a second mode from a second pixel area of the image sensor, the image sensor including a plurality of photoelectric converters corresponding to a single microlens, and an image processor (106b) which performs noise reduction processing on the first and second imaging signals, the first mode is a mode in which pixel signals of photoelectric converters are added to each other to be read from the image sensor, and the second mode is a mode in which a pixel signal of at least one of the photoelectric converters is read independently as a predetermined signal.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: April 28, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Mie Ishii, Hirokazu Kobayashi, Koji Oshima
  • Patent number: 10630912
    Abstract: An image sensor comprising: a pixel portion that outputs a pixel signal; a setting unit that sets a reference voltage in accordance with a shooting condition; a comparator that compares the reference voltage or one of a plurality of comparison voltages having different slopes which change with time and the pixel signal; a selector that selects one of the plurality of comparison voltages according to a result of the comparison between the reference voltage and the pixel signal by the comparator; and a counter that counts a number of clocks until the selected comparison voltage and the pixel signal become equal while the comparator compares the comparison voltage selected by the selector and the pixel signal.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: April 21, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Mie Ishii, Seiichirou Sakai
  • Patent number: 10594968
    Abstract: An image sensor includes a unit pixel that includes a photoelectric converter configured to accumulate electric charges generated based on incident light, and an electric charger configured to store the electric charges transferred from the photoelectric converter, and a corrector configured to correct a signal corresponding to the electric charges output from the electric charger based on a transfer condition when the electric charges are transferred from the photoelectric converter to the electric charger.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: March 17, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mie Ishii
  • Publication number: 20200045258
    Abstract: An image sensor comprises: a pixel unit including a plurality of first blocks each of which includes a plurality of first pixels shielded from light and a plurality of second blocks each of which includes a plurality of second pixels that are not shielded from light; and a controller that controls a plurality of readout operations for processing, in parallel, pixel signals read out from the plurality of first blocks and the plurality of second blocks in the pixel unit. The controller performs control so as to end readout of pixel signals from at least a predetermined portion of the first pixels included in each of the plurality of first blocks, before readout of pixel signals from the plurality of second blocks is started.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 6, 2020
    Inventors: Mie Ishii, Kazuki Ohshitanai
  • Publication number: 20200041759
    Abstract: An image sensor includes a pixel portion in which a plurality of unit pixels each having one micro lens and a plurality of photoelectric conversion portions are arrayed in a matrix, a signal readout portion that reads out signals accumulated in the photoelectric conversion portions and converts the read signals to digital signals, a signal processor that processes signals read out by the signal readout portion and has an image capture signal processor that performs signal processing for generating a captured image on signals read out by the signal readout portion and a focus detection signal processor that performs signal processing for focus detection on signals read out by the signal readout portion, and an output portion that outputs signals processed by the signal processor.
    Type: Application
    Filed: October 8, 2019
    Publication date: February 6, 2020
    Inventors: Mie Ishii, Ken Sasaki
  • Patent number: 10514526
    Abstract: An image sensor includes a pixel portion in which a plurality of unit pixels each having one micro lens and a plurality of photoelectric conversion portions are arrayed in a matrix, a signal readout portion that reads out signals accumulated in the photoelectric conversion portions and converts the read signals to digital signals, a signal processor that processes signals read out by the signal readout portion and has an image capture signal processor that performs signal processing for generating a captured image on signals read out by the signal readout portion and a focus detection signal processor that performs signal processing for focus detection on signals read out by the signal readout portion, and an output portion that outputs signals processed by the signal processor.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: December 24, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mie Ishii, Ken Sasaki
  • Patent number: 10473890
    Abstract: An image sensor includes a pixel portion in which a plurality of unit pixels each having one micro lens and a plurality of photoelectric conversion portions are arrayed in a matrix, a signal readout portion that reads out signals accumulated in the photoelectric conversion portions and converts the read signals to digital signals, a signal processor that processes signals read out by the signal readout portion and has an image capture signal processor that performs signal processing for generating a captured image on signals read out by the signal readout portion and a focus detection signal processor that performs signal processing for focus detection on signals read out by the signal readout portion, and an output portion that outputs signals processed by the signal processor.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: November 12, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mie Ishii, Ken Sasaki
  • Patent number: 10277855
    Abstract: An image sensing device includes: a plurality of pixels; and an AD converter that compares a pixel signal output from the plurality of pixels with a slope voltage having a temporally variable potential so as to perform AD conversion on the pixel signal, and switching is performed between a first mode and a second mode according to an imaging condition, the first mode being a mode in which the pixel signal is AD converted by selecting one from among a plurality of slope voltages and comparing the pixel signal with the selected slope voltage, and the second mode being a mode in which the pixel signal is AD converted by comparing the pixel signal with a predetermined slope voltage.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: April 30, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mie Ishii