Patents by Inventor Makoto Utsuki

Makoto Utsuki 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).

  • Semiconductor integrated circuit and operation method of the same
    Patent number: 7791369
    Abstract: A semiconductor integrated circuit including on the same semiconductor substrate: a first circuit block including a switching transistor which is off when the first circuit block is inactive and on when the first circuit block is active, the first circuit block including internal circuits adapted to provide predetermined functions, the internal circuits being connected to a first power line maintained at a low-level source voltage; a second circuit block including internal circuits adapted to provide predetermined functions, the internal circuits being connected to a second power line maintained at a low-level source voltage; a power line switch section connected between the first and second power lines; and a control circuit adapted to control the power line switch section so that the first and second power lines are connected together at a later timing or gradually over a longer period of time than the switching transistor turns on.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: September 7, 2010
    Assignee: Sony Corporation
    Inventors: Atsushi Kamo, Makoto Utsuki
  • Semiconductor integrated circuit and operation method of the same
    Publication number: 20080278194
    Abstract: A semiconductor integrated circuit including on the same semiconductor substrate: a first circuit block including a switching transistor which is off when the first circuit block is inactive and on when the first circuit block is active, the first circuit block including internal circuits adapted to provide predetermined functions, the internal circuits being connected to a first power line maintained at a low-level source voltage; a second circuit block including internal circuits adapted to provide predetermined functions, the internal circuits being connected to a second power line maintained at a low-level source voltage; a power line switch section connected between the first and second power lines; and a control circuit adapted to control the power line switch section so that the first and second power lines are connected together at a later timing or gradually over a longer period of time than the switching transistor turns on.
    Type: Application
    Filed: March 10, 2008
    Publication date: November 13, 2008
    Applicant: Sony Corporation
    Inventors: Atsushi Kamo, Makoto Utsuki