Patents by Inventor Naohiro MIZUMATA

Naohiro MIZUMATA 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: 11189315
    Abstract: An audio processing device includes: a drive circuit; a signal processing circuit; a power supply circuit; a power storage; a switch that selectively switches connection of the drive circuit between the power storage and the power supply circuit; and a controller that causes the switch to connect the drive circuit and the power supply circuit when the drive circuit is to be in a first state, and causes the switch to connect the drive circuit and the power storage when the drive circuit enters a second state. The first state is a state where current consumption of the drive circuit is greater than or equal to a predetermined threshold. The second state is a state where the current consumption of the drive circuit is less than the predetermined threshold.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: November 30, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Naohiro Mizumata, Masami Yamamoto
  • Publication number: 20210035605
    Abstract: An audio processing device includes: a drive circuit; a signal processing circuit; a power supply circuit; a power storage; a switch that selectively switches connection of the drive circuit between the power storage and the power supply circuit; and a controller that causes the switch to connect the drive circuit and the power supply circuit when the drive circuit is to be in a first state, and causes the switch to connect the drive circuit and the power storage when the drive circuit enters a second state. The first state is a state where current consumption of the drive circuit is greater than or equal to a predetermined threshold. The second state is a state where the current consumption of the drive circuit is less than the predetermined threshold.
    Type: Application
    Filed: October 15, 2018
    Publication date: February 4, 2021
    Inventors: Naohiro MIZUMATA, Masami YAMAMOTO
  • Publication number: 20120242904
    Abstract: Provided is a display apparatus that performs an adjustment of brightness of a backlight on a per block basis based on a video signal and displays, by using the backlight, an image based on the video signal. The display apparatus includes an adjustment portion that performs an adjustment of a color gain or sharpness with respect to the video signal, and a color gain level or a sharpness level to be achieved by the adjustment for each block is determined in accordance with a degree of the adjustment of brightness performed in the each block.
    Type: Application
    Filed: March 1, 2012
    Publication date: September 27, 2012
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Kazuyuki SHIRAI, Naohiro MIZUMATA