Patents by Inventor Masayoshi Chiba

Masayoshi Chiba 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).

  • Comparator and imaging device
    Patent number: 11889212
    Abstract: The present technology relates to a comparator that can easily modify operating point potential of the comparator, and an imaging device. A pixel signal output from a pixel, and, a reference signal with changeable voltage are input to a differential pair. A current mirror connected to the differential pair, and a voltage drop mechanism allowed to cause a predetermined voltage drop is connected between a transistor that configures the differential pair, and a transistor that configures the current mirror. A switch is connected in parallel to the voltage drop mechanism. The present technology can be applied, for example, to an image sensor that captures an image.
    Type: Grant
    Filed: February 22, 2023
    Date of Patent: January 30, 2024
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Masayoshi Chiba, Shinichi Watanabe
  • COMPARATOR AND IMAGING DEVICE
    Publication number: 20230209222
    Abstract: The present technology relates to a comparator that can easily modify operating point potential of the comparator, and an imaging device. A pixel signal output from a pixel, and, a reference signal with changeable voltage are input to a differential pair. A current mirror connected to the differential pair, and a voltage drop mechanism allowed to cause a predetermined voltage drop is connected between a transistor that configures the differential pair, and a transistor that configures the current mirror. A switch is connected in parallel to the voltage drop mechanism. The present technology can be applied, for example, to an image sensor that captures an image.
    Type: Application
    Filed: February 22, 2023
    Publication date: June 29, 2023
    Inventors: Masayoshi Chiba, Shinichi Watanabe
  • Comparator and imaging device
    Patent number: 11606522
    Abstract: The present technology relates to a comparator that can easily modify operating point potential of the comparator, and an imaging device. A pixel signal output from a pixel, and, a reference signal with changeable voltage are input to a differential pair. A current mirror connected to the differential pair, and a voltage drop mechanism allowed to cause a predetermined voltage drop is connected between a transistor that configures the differential pair, and a transistor that configures the current mirror. A switch is connected in parallel to the voltage drop mechanism. The present technology can be applied, for example, to an image sensor that captures an image.
    Type: Grant
    Filed: August 2, 2022
    Date of Patent: March 14, 2023
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Masayoshi Chiba, Shinichi Watanabe
  • COMPARATOR AND IMAGING DEVICE
    Publication number: 20220368843
    Abstract: The present technology relates to a comparator that can easily modify operating point potential of the comparator, and an imaging device. A pixel signal output from a pixel, and, a reference signal with changeable voltage are input to a differential pair. A current mirror connected to the differential pair, and a voltage drop mechanism allowed to cause a predetermined voltage drop is connected between a transistor that configures the differential pair, and a transistor that configures the current mirror. A switch is connected in parallel to the voltage drop mechanism. The present technology can be applied, for example, to an image sensor that captures an image.
    Type: Application
    Filed: August 2, 2022
    Publication date: November 17, 2022
    Inventors: Masayoshi Chiba, Shinichi Watanabe
  • Comparator and imaging device
    Patent number: 11438538
    Abstract: The present technology relates to a comparator that can easily modify operating point potential of the comparator, and an imaging device. A pixel signal output from a pixel, and, a reference signal with changeable voltage are input to a differential pair. A current mirror connected to the differential pair, and a voltage drop mechanism allowed to cause a predetermined voltage drop is connected between a transistor that configures the differential pair, and a transistor that configures the current mirror. A switch is connected in parallel to the voltage drop mechanism. The present technology can be applied, for example, to an image sensor that captures an image.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: September 6, 2022
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Masayoshi Chiba, Shinichi Watanabe
  • COMPARATOR AND IMAGING DEVICE
    Publication number: 20210274117
    Abstract: The present technology relates to a comparator that can easily modify operating point potential of the comparator, and an imaging device. A pixel signal output from a pixel, and, a reference signal with changeable voltage are input to a differential pair. A current mirror connected to the differential pair, and a voltage drop mechanism allowed to cause a predetermined voltage drop is connected between a transistor that configures the differential pair, and a transistor that configures the current mirror. A switch is connected in parallel to the voltage drop mechanism. The present technology can be applied, for example, to an image sensor that captures an image.
    Type: Application
    Filed: June 25, 2019
    Publication date: September 2, 2021
    Inventors: Masayoshi Chiba, Shinichi Watanabe