Patents by Inventor Takeyuki Iguchi

Takeyuki Iguchi 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).

  • Computer system using stop clock function of CPU to enter low power state
    Patent number: 6317841
    Abstract: The CPU speed is apparently decreased, and current consumption is reduced by asserting a stop clock (STPCLK#) signal at a predetermined interval. When a system event (INTR, NMI, SMI, SRESET, and INIT) occurs, assertion of the STPCLK# signal is inhibited for a predetermined time to allow a high-speed operation. In an ISA refresh cycle, by asserting the STPCLK# signal instead of a conventional HOLD/HLDA cycle, the refresh cycle is executed in a stop grant state.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: November 13, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akihito Nagae, Koichi Senuma, Takeyuki Iguchi