Patents by Inventor Yasutaka Kusao

Yasutaka Kusao 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: 11100883
    Abstract: A source driver 130 includes a first latch 131 outputting a first data signal D1(1) having multiple bits (e.g., eight bits), a second latch 132 outputting a second data signal D2(1) by latching the first data signal D1(1) in a plurality of steps in units of one or more bits, a DAC 133 converting the second data signal D2(1) into an analog signal A(1), and an amplifier 134 receiving the analog signal A(1) to output a source signal S(1). The second latch 132 latches the first data signal D1(1), e.g., one bit at every clock, one bit at every plurality of clocks, a plurality of bits at every clock, or a plurality of bits at every plurality of clocks.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: August 24, 2021
    Assignee: Rohm Co., Ltd.
    Inventors: Takateru Yamamoto, Yasutaka Kusao, Sheryll Anne Dayao Joson
  • Publication number: 20200349900
    Abstract: A source driver 130 includes a first latch 131 outputting a first data signal D1(1) having multiple bits (e.g., eight bits), a second latch 132 outputting a second data signal D2(1) by latching the first data signal D1(1) in a plurality of steps in units of one or more bits, a DAC 133 converting the second data signal D2(1) into an analog signal A(1), and an amplifier 134 receiving the analog signal A(1) to output a source signal S(1). The second latch 132 latches the first data signal D1(1), e.g., one bit at every clock, one bit at every plurality of clocks, a plurality of bits at every clock, or a plurality of bits at every plurality of clocks.
    Type: Application
    Filed: April 20, 2018
    Publication date: November 5, 2020
    Applicant: Rohm Co., Ltd.
    Inventors: Takateru Yamamoto, Yasutaka Kusao, Sheryll Anne Dayao Joson