Patents by Inventor Noriaki Takagi

Noriaki Takagi 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).

  • Power saving input buffer for use with a gate array
    Patent number: 4894558
    Abstract: The present invention incorporates a control mechanism in an input buffer for a gate array so that the input buffer may be directly enabled or disabled by a control signal. Hence, no power will be wasted by the unnecessary operation of gates internal to the input buffer or subsequent stages. The method of control is to couple a common control signal to one input port of each of a plurality of two-input AND gates and couple an incoming data signal to the other input port of each of the two-input AND gates. The AND gates function as input buffers and the outputs of the AND gates are applied to the subsequent stage (e.g., a gate array). Thus, a LOW control signal disables the AND gate input buffers and subsequent stages coupled to the outputs of the AND gates, regardless of whether the incoming data signals are of a HIGH or LOW state.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: January 16, 1990
    Assignees: NEC Electronics Inc., NEC Corporation
    Inventors: Cecil Conkle, Masahiko Shoji, Noriaki Takagi
  • Video camera
    Patent number: D410480
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: June 1, 1999
    Assignee: Sony Corporation
    Inventor: Noriaki Takagi
  • Television receiver
    Patent number: D412166
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: July 20, 1999
    Assignee: Sony Kabushiki Kaisha
    Inventors: Yoshiaki Kumagai, Noriaki Takagi, Shigeyuki Kazama