Patents by Inventor Tomoyuki Hiro

Tomoyuki Hiro 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: 12219274
    Abstract: An event can be detected quickly and accurately regardless of surrounding brightness. An imaging device includes: a photoelectric conversion element that photoelectrically converts incident light and generates an electrical signal corresponding to incident light intensity; a detection unit that outputs a detection signal indicating whether or not a change amount of the electrical signal exceeds a predetermined threshold value; and a threshold value selection circuit that selects the threshold value from among a plurality of threshold value candidates according to a magnitude of the electrical signal.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: February 4, 2025
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yuki Ozawa, Takehiro Otani, Tomoyuki Hiro
  • Publication number: 20230156354
    Abstract: An event can be detected quickly and accurately regardless of surrounding brightness. An imaging device includes: a photoelectric conversion element that photoelectrically converts incident light and generates an electrical signal corresponding to incident light intensity; a detection unit that outputs a detection signal indicating whether or not a change amount of the electrical signal exceeds a predetermined threshold value; and a threshold value selection circuit that selects the threshold value from among a plurality of threshold value candidates according to a magnitude of the electrical signal.
    Type: Application
    Filed: March 30, 2021
    Publication date: May 18, 2023
    Inventors: YUKI OZAWA, TAKEHIRO OTANI, TOMOYUKI HIRO
  • Patent number: 11128827
    Abstract: In an imaging device that transmits control signals to a large number of pixels, an influence is reduced of delay at the time of signal transmission. An imaging device drive circuit includes a plurality of control signal lines, a control signal distribution line, two control signal transmission units, and two operation units. The plurality of control signal lines each transmits a control signal for each of a plurality of pixels that generates image signals depending on incident light on the basis of the control signal. The control signal distribution line has a shape of a line, and the plurality of control signal lines is connected thereto in a distributed manner, and the control signal distribution line distributes the control signals supplied from both ends of the line to the plurality of control signal lines.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: September 21, 2021
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Tomoyuki Hiro
  • Publication number: 20200412988
    Abstract: In an imaging device that transmits control signals to a large number of pixels, an influence is reduced of delay at the time of signal transmission. An imaging device drive circuit includes a plurality of control signal lines, a control signal distribution line, two control signal transmission units, and two operation units. The plurality of control signal lines each transmits a control signal for each of a plurality of pixels that generates image signals depending on incident light on the basis of the control signal. The control signal distribution line has a shape of a line, and the plurality of control signal lines is connected thereto in a distributed manner, and the control signal distribution line distributes the control signals supplied from both ends of the line to the plurality of control signal lines.
    Type: Application
    Filed: January 23, 2019
    Publication date: December 31, 2020
    Inventor: TOMOYUKI HIRO
  • Patent number: 7459971
    Abstract: The present invention provides an amplifier circuit comprising a differential amplifier and a negative feedback loop circuit, in which a positive feedback loop circuit having a gain smaller than a gain of the negative feedback loop circuit is formed inside the negative feedback loop circuit.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: December 2, 2008
    Assignee: Sony Corporation
    Inventors: Katsuhisa Daio, Tomoyuki Hiro
  • Publication number: 20080024212
    Abstract: The present invention provides an amplifier circuit comprising a differential amplifier and a negative feedback loop circuit, in which a positive feedback loop circuit having a gain smaller than a gain of the negative feedback loop circuit is formed inside the negative feedback loop circuit.
    Type: Application
    Filed: July 23, 2007
    Publication date: January 31, 2008
    Applicant: Sony Corporation
    Inventors: Katsuhisa Daio, Tomoyuki Hiro
  • Patent number: 7265624
    Abstract: The present invention provides an amplifier circuit comprising a differential amplifier and a negative feedback loop circuit, in which a positive feedback loop circuit having a gain smaller than a gain of the negative feedback loop circuit is formed inside the negative feedback loop circuit.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: September 4, 2007
    Assignee: Sony Corporation
    Inventors: Katsuhisa Daio, Tomoyuki Hiro
  • Publication number: 20060091947
    Abstract: The present invention provides an amplifier circuit comprising a differential amplifier and a negative feedback loop circuit, in which a positive feedback loop circuit having a gain smaller than a gain of the negative feedback loop circuit is formed inside the negative feedback loop circuit.
    Type: Application
    Filed: July 7, 2005
    Publication date: May 4, 2006
    Applicant: Sony Corporation
    Inventors: Katsuhisa Daio, Tomoyuki Hiro