Patents by Inventor Noboru Tsukada

Noboru Tsukada 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).

  • Digital signal processing device, display device, and program
    Patent number: 8259791
    Abstract: In at least one embodiment of the disclosure, a digital signal processing device is configured to receive a TMDS signal and a hot-plug signal via a digital signal cable. A TMDS signal determination section is configured to determine whether the TMDS signal has been received. A hot-plug signal determination section is configured to determine whether the hot-plug signal has been received every t seconds when the TMDS signal has not been received. A digital signal determination section is configured to determine that a digital signal is present if the TMDS signal is received. A digital signal is determined absent if (a) the hot-plug signal has not been received n times (n being an integer equal to or greater than one), or (b) the hot-plug signal has been received m times (m being an integer equal to or greater than two and m being greater than n).
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: September 4, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Noboru Tsukada
  • DIGITAL SIGNAL PROCESSING DEVICE, DISPLAY DEVICE, AND PROGRAM
    Publication number: 20090196340
    Abstract: In at least one embodiment of the disclosure, a digital signal processing device is configured to receive a TMDS signal and a hot-plug signal via a digital signal cable. A TMDS signal determination section is configured to determine whether the TMDS signal has been received. A hot-plug signal determination section is configured to determine whether the hot-plug signal has been received every t seconds when the TMDS signal has not been received. A digital signal determination section is configured to determine that a digital signal is present if the TMDS signal is received. A digital signal is determined absent if (a) the hot-plug signal has not been received n times (n being an integer equal to or greater than one), or (b) the hot-plug signal has been received m times (m being an integer equal to or greater than two and m being greater than n).
    Type: Application
    Filed: February 5, 2009
    Publication date: August 6, 2009
    Applicant: Seiko Epson Corporation
    Inventor: Noboru Tsukada