Patents by Inventor Tadayuki Taura

Tadayuki Taura 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: 10887540
    Abstract: The present disclosure relates to a solid-state imaging apparatus, a method for driving the solid-state imaging apparatus, and electronic equipment for improving the determination speed of comparators and allowing the comparators to operate faster. A differential input circuit operates on a first power supply voltage and outputs a signal when a voltage of a pixel signal is higher than a voltage of a reference signal. A voltage conversion circuit converts the output signal from the differential input circuit into a signal corresponding to a second power supply voltage. A positive feedback circuit accelerates a transition rate at which a comparison result signal of a comparison in voltage between the pixel signal and the reference signal is inverted. Multiple time code transfer sections each include a shift register that transfer a time code. The present disclosure can be applied, for example, to an imaging apparatus including A/D converters disposed in pixels.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: January 5, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Tadayuki Taura
  • Publication number: 20200228738
    Abstract: The present disclosure relates to a solid-state imaging apparatus and electronic equipment that can reduce power consumption. In an AD converter for each unit pixel or each shared pixel unit, a pixel signal is compared with a reference signal temporally changing. In addition, a magnitude of a pixel signal of a pixel of interest is compared with a magnitude of each of pixel signals of neighboring pixels located in a neighborhood of the pixel of interest using the reference signal, and a result of comparison of the magnitudes is held in a data storage section. The present disclosure can be applied to a back-illuminated solid-state imaging apparatus, for example.
    Type: Application
    Filed: February 26, 2018
    Publication date: July 16, 2020
    Inventors: KOJI OGAWA, TADAYUKI TAURA
  • Publication number: 20200067498
    Abstract: The present disclosure relates to a comparator, an AD converter, a solid-state image pickup device, an electronic device, a method of controlling the comparator, a data writing circuit, a data reading circuit, and a data transferring circuit, capable of improving the determining speed of the comparator and reducing power consumption.
    Type: Application
    Filed: October 30, 2019
    Publication date: February 27, 2020
    Inventors: HIDEKAZU KIKUCHI, TADAYUKI TAURA, MASAKI SAKAKIBARA
  • Patent number: 10498321
    Abstract: An imaging device for improving the determining speed of the comparator and reducing power consumption. The comparator includes a differential input circuit that operates with a first power supply voltage, the differential input circuit that outputs a signal when an input signal is higher than a reference signal in voltage, a positive feedback circuit that operates with a second power supply voltage lower than the first power supply voltage and accelerates transition speed when a compared result signal indicating a compared result between the input signal and the reference signal in voltage, is inverted, based on the output signal of the differential input circuit, and a voltage conversion circuit that converts the output signal of the differential input circuit into a signal corresponding to the second power supply voltage.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: December 3, 2019
    Assignee: SONY CORPORATION
    Inventors: Hidekazu Kikuchi, Tadayuki Taura, Masaki Sakakibara
  • Patent number: 10373990
    Abstract: The present disclosure relates to a solid-state imaging element and an electronic apparatus, in which the number of wires controlling readout can be reduced in a case where a pixel signal of each pixel is read out in a predetermined order for each unit pixel region. The unit pixel region is configured by a plurality of pixels arranged in an array. A readout circuit is provided for each unit pixel region and reads out, in a predetermined order, pixel signals of the plurality of pixels configuring the unit pixel regions. Pixel drive wires, which control readout of the pixels configuring the unit pixel regions adjacent in the vertical direction and having the same readout order, are shared. The present disclosure can be applied to, for example, a CMOS image sensor and the like.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: August 6, 2019
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Yasuhisa Tochigi, Masaki Sakakibara, Tadayuki Taura
  • Publication number: 20190208151
    Abstract: The present disclosure relates to a solid-state imaging apparatus, a method for driving the solid-state imaging apparatus, and electronic equipment for improving the determination speed of comparators and allowing the comparators to operate faster. A differential input circuit operates on a first power supply voltage and outputs a signal when a voltage of a pixel signal is higher than a voltage of a reference signal. A voltage conversion circuit converts the output signal from the differential input circuit into a signal corresponding to a second power supply voltage. A positive feedback circuit accelerates a transition rate at which a comparison result signal of a comparison in voltage between the pixel signal and the reference signal is inverted. Multiple time code transfer sections each include a shift register that transfer a time code. The present disclosure can be applied, for example, to an imaging apparatus including A/D converters disposed in pixels.
    Type: Application
    Filed: August 8, 2017
    Publication date: July 4, 2019
    Applicant: Sony Semiconductor Solutions Corporation
    Inventor: Tadayuki TAURA
  • 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: 20180351540
    Abstract: The present disclosure relates to a comparator, an AD converter, a solid-state image pickup device, an electronic device, a method of controlling the comparator, a data writing circuit, a data reading circuit, and a data transferring circuit, capable of improving the determining speed of the comparator and reducing power consumption.
    Type: Application
    Filed: August 8, 2018
    Publication date: December 6, 2018
    Inventors: HIDEKAZU KIKUCHI, TADAYUKI TAURA, MASAKI SAKAKIBARA
  • Patent number: 10075155
    Abstract: An electronic device is provided for improving the determining speed of the comparator and reducing power consumption. The comparator includes a differential input circuit configured to operate with a first power supply voltage and output a signal when an input signal is higher than a reference signal in voltage; a positive feedback circuit configured to operate with a second power supply voltage lower than the first power supply voltage and to accelerate transition speed when a compared result signal indicating a compared result between the input signal and the reference signal in voltage, is inverted, based on the output signal of the differential input circuit; and a voltage conversion circuit configured to convert the output signal of the differential input circuit into a signal corresponding to the second power supply voltage.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: September 11, 2018
    Assignee: SONY CORPORATION
    Inventors: Hidekazu Kikuchi, Tadayuki Taura, 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
  • Publication number: 20180240823
    Abstract: The present disclosure relates to a solid-state imaging element and an electronic apparatus, in which the number of wires controlling readout can be reduced in a case where a pixel signal of each pixel is read out in a predetermined order for each unit pixel region. The unit pixel region is configured by a plurality of pixels arranged in an array. A readout circuit is provided for each unit pixel region and reads out, in a predetermined order, pixel signals of the plurality of pixels configuring the unit pixel regions. Pixel drive wires, which control readout of the pixels configuring the unit pixel regions adjacent in the vertical direction and having the same readout order, are shared. The present disclosure can be applied to, for example, a CMOS image sensor and the like.
    Type: Application
    Filed: August 12, 2016
    Publication date: August 23, 2018
    Inventors: Yasuhisa TOCHIGI, Masaki SAKAKIBARA, Tadayuki TAURA
  • 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: 20180013412
    Abstract: The present disclosure relates to a comparator, an AD converter, a solid-state image pickup device, an electronic device, a method of controlling the comparator, a data writing circuit, a data reading circuit, and a data transferring circuit, capable of improving the determining speed of the comparator and reducing power consumption.
    Type: Application
    Filed: February 9, 2016
    Publication date: January 11, 2018
    Inventors: HIDEKAZU KIKUCHI, TADAYUKI TAURA, MASAKI SAKAKIBARA
  • 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
  • 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: 9584749
    Abstract: The present disclosure relates to an imaging element, a control method, and an imaging apparatus that enable an image of a higher image quality to be obtained. An imaging apparatus according to the present disclosure includes a plurality of comparing units that compare analog signals supplied from pixels including photoelectric conversion elements through a vertical signal line with reference signals of ramp waves having different inclinations and output comparison results, a plurality of counters that execute counts until the comparison results are inverted for the different comparing units and output count values as digital data, and a sample-and-hold unit that electrically cuts the vertical signal line and the comparing units and supplies the held analog signals to the comparing units while the comparing units execute the comparisons. The present disclosure can be applied to an imaging element, a control method, and an imaging apparatus.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: February 28, 2017
    Assignee: SONY CORPORATION
    Inventors: Mamoru Sato, Masaki Sakakibara, Tadayuki Taura
  • 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: 9374097
    Abstract: A data processor including: a reference signal generator to generate a reference signal, used to convert a level of an analog processing signal into digital data; a comparator to compare the processing signal with the reference signal; and a count period controller to perform a real number count operation or a complement number count operation, on the basis of the comparison result of the comparator. The count period controller independently controls the real number count operation and the complement number count operation of the counter on the basis of a predetermined criterion.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: June 21, 2016
    Assignee: SONY CORPORATION
    Inventor: Tadayuki Taura
  • 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