Patents by Inventor Junichi Kuchinishi

Junichi Kuchinishi 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 input/output control circuit
    Patent number: 7868680
    Abstract: In a synchronous semiconductor device (250), an input/output control circuit is formed of a clock input I/O (260), a clock control signal input I/O (270) and a signal change detection circuit (280). The clock input I/O (260) includes a first input buffer (264) having a large threshold, a second input buffer (266) having a small threshold and an input selector (268). The signal change detection circuit (280) controls the input selector (268) so that a first input from the first input buffer (264) is normally selected and a second input from the second input buffer (266) is temporarily selected only when the signal change detection circuit (280) detects that a logic level of a clock control signal (279) is changed from a non-activated level to an activated level.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: January 11, 2011
    Assignee: Panasonic Corporation
    Inventors: Akira Maruko, Junichi Kuchinishi
  • SEMICONDUCTOR INPUT/OUTPUT CONTROL CIRCUIT
    Publication number: 20100231277
    Abstract: In a synchronous semiconductor device (250), an input/output control circuit is formed of a clock input I/O (260), a clock control signal input I/O (270) and a signal change detection circuit (280). The clock input I/O (260) includes a first input buffer (264) having a large threshold, a second input buffer (266) having a small threshold and an input selector (268). The signal change detection circuit (280) controls the input selector (268) so that a first input from the first input buffer (264) is normally selected and a second input from the second input buffer (266) is temporarily selected only when the signal change detection circuit (280) detects that a logic level of a clock control signal (279) is changed from a non-activated level to an activated level.
    Type: Application
    Filed: July 10, 2007
    Publication date: September 16, 2010
    Inventors: Akira Maruko, Junichi Kuchinishi