Patents by Inventor Katsuhisa Ohashi

Katsuhisa Ohashi 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).

  • Publication number: 20160056812
    Abstract: A clock generation circuit that can reliably recover from a state in which generation of a clock is stopped even during a power-on process and a normal operation. The clock generation circuit includes a clock extraction circuit that extracts an extracted clock from an embedded signal on which a clock and data are superimposed, and a stop detection circuit that detects a stop of the extracted clock on the basis of the embedded signal and the extracted clock and outputs a reset signal that resets the clock extraction circuit to an initial state.
    Type: Application
    Filed: November 2, 2015
    Publication date: February 25, 2016
    Applicant: Renesas Electronics Corporation
    Inventor: Katsuhisa OHASHI
  • Patent number: 9209817
    Abstract: A clock generation circuit that can reliably recover from a state in which generation of a clock is stopped even during a power-on process and a normal operation. The clock generation circuit includes a clock extraction circuit that extracts an extracted clock from an embedded signal on which a clock and data are superimposed, and a stop detection circuit that detects a stop of the extracted clock on the basis of the embedded signal and the extracted clock and outputs a reset signal that resets the clock extraction circuit to an initial state.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: December 8, 2015
    Assignee: Renesas Electronics Corporation
    Inventor: Katsuhisa Ohashi
  • Publication number: 20120299505
    Abstract: A clock generation circuit that can reliably recover from a state in which generation of a clock is stopped even during a power-on process and a normal operation. The clock generation circuit includes a clock extraction circuit that extracts an extracted clock from an embedded signal on which a clock and data are superimposed, and a stop detection circuit that detects a stop of the extracted clock on the basis of the embedded signal and the extracted clock and outputs a reset signal that resets the clock extraction circuit to an initial state.
    Type: Application
    Filed: May 22, 2012
    Publication date: November 29, 2012
    Inventor: Katsuhisa OHASHI
  • Patent number: 6344849
    Abstract: The present invention provides a display control circuit comprising: a single transmission-control/priority-control circuit having a single output and two inputs, one of which receives a sequentially supplied screen data set, and the single transmission-control/priority-control circuit being capable of transmission-control and priority-control of the sequentially supplied screen data; and a single line buffer having a single input connected to the single output of the single transmission-control/priority-control circuit and two outputs, one of which is connected to other of the two inputs of the single transmission-control/priority-control circuit for sequentially supplying stored data into the other input of the single transmission-control/priority-control circuit every when new data are supplied from the single transmission-control/priority-control circuit so that the processes are continued sequentially until all data relating to all screens have been processed or the currently supplied data to be stored i
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: February 5, 2002
    Assignee: NEC Corporation
    Inventor: Katsuhisa Ohashi