Patents by Inventor Takafumi Takatsuka

Takafumi Takatsuka 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: 10257452
    Abstract: A solid-state imaging device includes a pixel array section that has at least one pixel with a photoelectric conversion unit and a charge detection unit. A driving section is configured to read out a signal of the pixel, a first portion of said signal being based on signal charge, a second portion of said signal being based on a reset potential. A signal processing section is configured to read out the first portion of the signal as a reference voltage, with the reference voltage being adjusted to cause the first and second portions of the signal to be within an input voltage range.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: April 9, 2019
    Assignee: Sony Corporation
    Inventors: Masaki Sakakibara, Tadayuki Taura, Yusuke Oike, Takafumi Takatsuka, Akihiko Kato
  • Publication number: 20190052822
    Abstract: A signal processing device includes a comparison unit to compare a signal level of an analog signal with a signal level of a reference signal; a selection unit configured to select the reference signal to be supplied to the comparison unit; and a switching unit capable of switching a signal line connected to an input terminal of the comparison unit such that a signal line via which the selected reference signal is transmitted is connected to the input terminal of the comparison unit, wherein the comparison unit includes a floating node as the input terminal, the selection unit includes a signal line in which a parasitic capacitance is caused between the signal line and the floating node as the input terminal of the comparison unit, and the signal line of the selection unit is configured to transmit an identical level of signal in multiple comparison processes of the comparison unit.
    Type: Application
    Filed: October 17, 2018
    Publication date: February 14, 2019
    Inventors: TAKAFUMI TAKATSUKA, YUSUKE OIKE, MASAKI SAKAKIBARA
  • Patent number: 10136085
    Abstract: The present technology relates to a signal processing device, an imaging element, and an electronic apparatus configured so that a cost increase can be suppressed.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: November 20, 2018
    Assignee: SONY CORPORATION
    Inventors: Takafumi Takatsuka, Yusuke Oike, Masaki Sakakibara
  • Publication number: 20180255257
    Abstract: The present technology relates to a signal processing device, an imaging element, and an electronic apparatus configured so that a cost increase can be suppressed.
    Type: Application
    Filed: May 1, 2018
    Publication date: September 6, 2018
    Inventors: TAKAFUMI TAKATSUKA, YUSUKE OIKE, MASAKI SAKAKIBARA
  • Publication number: 20180249098
    Abstract: A solid-state imaging device includes a pixel array section that has at least one pixel with a photoelectric conversion unit and a charge detection unit. A driving section is configured to read out a signal of the pixel, a first portion of said signal being based on signal charge, a second portion of said signal being based on a reset potential. A signal processing section is configured to read out the first portion of the signal as a reference voltage, with the reference voltage being adjusted to cause the first and second portions of the signal to be within an input voltage range.
    Type: Application
    Filed: April 25, 2018
    Publication date: August 30, 2018
    Inventors: Masaki Sakakibara, Tadayuki Taura, Yusuke Oike, Takafumi Takatsuka, Akihiko Kato
  • Patent number: 9992431
    Abstract: The present technology relates to a signal processing device, an imaging element, and an electronic apparatus configured so that a cost increase can be suppressed.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: June 5, 2018
    Assignee: SONY CORPORATION
    Inventors: Takafumi Takatsuka, Yusuke Oike, Masaki Sakakibara
  • Patent number: 9986178
    Abstract: A solid-state imaging device includes a pixel array section that has at least one pixel with a photoelectric conversion unit and a charge detection unit. A driving section is configured to read out a signal of the pixel, a first portion of said signal being based on signal charge, a second portion of said signal being based on a reset potential. A signal processing section is configured to read out the first portion of the signal as a reference voltage, with the reference voltage being adjusted to cause the first and second portions of the signal to be within an input voltage range.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: May 29, 2018
    Assignee: Sony Corporation
    Inventors: Masaki Sakakibara, Tadayuki Taura, Yusuke Oike, Takafumi Takatsuka, Akihiko Kato
  • Publication number: 20170374303
    Abstract: A solid-state imaging device includes a first chip including a plurality of pixels, each pixel including a light sensing unit generating a signal charge responsive to an amount of received light, and a plurality of MOS transistors reading the signal charge generated by the light sensing unit and outputting the read signal charge as a pixel signal, a second chip including a plurality of pixel drive circuits supplying desired drive pulses to pixels, the second chip being laminated beneath the first chip in a manner such that the pixel drive circuits are arranged beneath the pixels formed in the first chip to drive the pixels, and a connection unit for electrically connecting the pixels to the pixel drive circuits arranged beneath the pixels.
    Type: Application
    Filed: August 23, 2017
    Publication date: December 28, 2017
    Inventors: Katsumi Honda, Takafumi Takatsuka
  • Patent number: 9848143
    Abstract: A solid-state imaging device includes a first chip including a plurality of pixels, each pixel including a light sensing unit generating a signal charge responsive to an amount of received light, and a plurality of MOS transistors reading the signal charge generated by the light sensing unit and outputting the read signal charge as a pixel signal, a second chip including a plurality of pixel drive circuits supplying desired drive pulses to pixels, the second chip being laminated beneath the first chip in a manner such that the pixel drive circuits are arranged beneath the pixels formed in the first chip to drive the pixels, and a connection unit for electrically connecting the pixels to the pixel drive circuits arranged beneath the pixels.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: December 19, 2017
    Assignee: Sony Corporation
    Inventors: Katsumi Honda, Takafumi Takatsuka
  • Publication number: 20170359531
    Abstract: A solid-state imaging device includes a pixel array section that has at least one pixel with a photoelectric conversion unit and a charge detection unit. A driving section is configured to read out a signal of the pixel, a first portion of said signal being based on signal charge, a second portion of said signal being based on a reset potential. A signal processing section is configured to read out the first portion of the signal as a reference voltage, with the reference voltage being adjusted to cause the first and second portions of the signal to be within an input voltage range.
    Type: Application
    Filed: August 29, 2017
    Publication date: December 14, 2017
    Inventors: Masaki Sakakibara, Tadayuki Taura, Yusuke Oike, Takafumi Takatsuka, Akihiko Kato
  • Publication number: 20170324918
    Abstract: The present technology relates to a signal processing device, an imaging element, and an electronic apparatus configured so that a cost increase can be suppressed.
    Type: Application
    Filed: October 22, 2015
    Publication date: November 9, 2017
    Inventors: TAKAFUMI TAKATSUKA, YUSUKE OIKE, MASAKI SAKAKIBARA
  • Patent number: 9769396
    Abstract: A solid-state imaging device includes a pixel array section that has at least one pixel with a photoelectric conversion unit and a charge detection unit. A driving section is configured to read out a signal of the pixel, a first portion of said signal being based on signal charge, a second portion of said signal being based on a reset potential. A signal processing section is configured to read out the first portion of the signal as a reference voltage, with the reference voltage being adjusted to cause the first and second portions of the signal to be within an input voltage range.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: September 19, 2017
    Assignee: Sony Corporation
    Inventors: Masaki Sakakibara, Tadayuki Taura, Yusuke Oike, Takafumi Takatsuka, Akihiko Kato
  • Patent number: 9462200
    Abstract: A solid-state imaging device includes a pixel array section that has at least one pixel with a photoelectric conversion unit and a charge detection unit. A driving section is configured to read out a signal of the pixel, a first portion of said signal being based on signal charge, a second portion of said signal being based on a reset potential. A signal processing section is configured to read out the first portion of the signal as a reference voltage, with the reference voltage being adjusted to cause the first and second portions of the signal to be within an input voltage range.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: October 4, 2016
    Assignee: Sony Corporation
    Inventors: Masaki Sakakibara, Tadayuki Taura, Yusuke Oike, Takafumi Takatsuka, Akihiko Kato
  • 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
  • Publication number: 20160094794
    Abstract: A solid-state imaging device includes a pixel array section that has at least one pixel with a photoelectric conversion unit and a charge detection unit. A driving section is configured to read out a signal of the pixel, a first portion of said signal being based on signal charge, a second portion of said signal being based on a reset potential. A signal processing section is configured to read out the first portion of the signal as a reference voltage, with the reference voltage being adjusted to cause the first and second portions of the signal to be within an input voltage range.
    Type: Application
    Filed: December 8, 2015
    Publication date: March 31, 2016
    Inventors: Masaki Sakakibara, Tadayuki Taura, Yusuke Oike, Takafumi Takatsuka, Akihiko Kato
  • Publication number: 20160065871
    Abstract: A solid-state imaging device includes a pixel array section that has at least one pixel with a photoelectric conversion unit and a charge detection unit. A driving section is configured to read out a signal of the pixel, a first portion of said signal being based on signal charge, a second portion of said signal being based on a reset potential. A signal processing section is configured to read out the first portion of the signal as a reference voltage, with the reference voltage being adjusted to cause the first and second portions of the signal to be within an input voltage range.
    Type: Application
    Filed: October 29, 2015
    Publication date: March 3, 2016
    Inventors: Masaki Sakakibara, Tadayuki Taura, Yusuke Oike, Takafumi Takatsuka, Akihiko Kato
  • Patent number: 9215390
    Abstract: A solid-state imaging device includes a pixel array section that has at least one pixel with a photoelectric conversion unit and a charge detection unit. A driving section is configured to read out a signal of the pixel, a first portion of said signal being based on signal charge, a second portion of said signal being based on a reset potential. A signal processing section is configured to read out the first portion of the signal as a reference voltage, with the reference voltage being adjusted to cause the first and second portions of the signal to be within an input voltage range.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: December 15, 2015
    Assignee: Sony Corporation
    Inventors: Masaki Sakakibara, Tadayuki Taura, Yusuke Oike, Takafumi Takatsuka, Akihiko Kato
  • Publication number: 20150237278
    Abstract: A solid-state imaging device includes a pixel array section that has at least one pixel with a photoelectric conversion unit and a charge detection unit. A driving section is configured to read out a signal of the pixel, a first portion of said signal being based on signal charge, a second portion of said signal being based on a reset potential. A signal processing section is configured to read out the first portion of the signal as a reference voltage, with the reference voltage being adjusted to cause the first and second portions of the signal to be within an input voltage range.
    Type: Application
    Filed: May 4, 2015
    Publication date: August 20, 2015
    Inventors: Masaki Sakakibara, Tadayuki Taura, Yusuke Oike, Takafumi Takatsuka, Akihiko Kato
  • Publication number: 20150172574
    Abstract: A solid-state imaging device includes a first chip including a plurality of pixels, each pixel including a light sensing unit generating a signal charge responsive to an amount of received light, and a plurality of MOS transistors reading the signal charge generated by the light sensing unit and outputting the read signal charge as a pixel signal, a second chip including a plurality of pixel drive circuits supplying desired drive pulses to pixels, the second chip being laminated beneath the first chip in a manner such that the pixel drive circuits are arranged beneath the pixels formed in the first chip to drive the pixels, and a connection unit for electrically connecting the pixels to the pixel drive circuits arranged beneath the pixels.
    Type: Application
    Filed: February 27, 2015
    Publication date: June 18, 2015
    Inventors: Katsumi Honda, Takafumi Takatsuka
  • Patent number: 9060143
    Abstract: A solid-state imaging device includes a first chip including a plurality of pixels, each pixel including a light sensing unit generating a signal charge responsive to an amount of received light, and a plurality of MOS transistors reading the signal charge generated by the light sensing unit and outputting the read signal charge as a pixel signal, a second chip including a plurality of pixel drive circuits supplying desired drive pulses to pixels, the second chip being laminated beneath the first chip in a manner such that the pixel drive circuits are arranged beneath the pixels formed in the first chip to drive the pixels, and a connection unit for electrically connecting the pixels to the pixel drive circuits arranged beneath the pixels.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: June 16, 2015
    Assignee: SONY CORPORATION
    Inventors: Katsumi Honda, Takafumi Takatsuka