Patents by Inventor Teruhiko Ohzuchi

Teruhiko Ohzuchi 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).

  • Optical disc drive and method of updating firmware
    Patent number: 7233559
    Abstract: An optical disc drive 1 of the present invention includes an electrically rewritable flash ROM 32 which stores firmware of the optical disc drive 1; means for judging whether or not the loaded optical disc 2 is a predetermined type of optical disc in which update data for updating the currently stored firmware is stored when the optical disc 2 is loaded into the optical disc drive 1; a buffer memory 31 for temporarily storing the update data recorded in the loaded optical disc 2 in the case where the judging means judges that the loaded optical disc 2 is the predetermined type of optical disc; and control means 9 for determining whether the currently stored firmware of the optical disc drive 1 should be updated with the update data based on the absence or presence of a predetermined signal (a signal outputted when an eject button is pushed), and updating the currently stored firmware with the update data stored in the buffer memory 31 in the case where it is determined that the currently stored firmware of th
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: June 19, 2007
    Assignee: Mitsumi Electric Co. Ltd.
    Inventors: Hiromichi Tanimukai, Teruhiko Ohzuchi
  • Optical disc drive and method of updating firmware
    Publication number: 20040062166
    Abstract: An optical disc drive 1 of the present invention includes an electrically rewritable flash ROM 32 which stores firmware of the optical disc drive 1; means for judging whether or not the loaded optical disc 2 is a predetermined type of optical disc in which update data for updating the currently stored firmware is stored when the optical disc 2 is loaded into the optical disc drive 1; a buffer memory 31 for temporarily storing the update data recorded in the loaded optical disc 2 in the case where the judging means judges that the loaded optical disc 2 is the predetermined type of optical disc; and control means 9 for determining whether the currently stored firmware of the optical disc drive 1 should be updated with the update data based on the absence or presence of a predetermined signal (a signal outputted when an eject button is pushed), and updating the currently stored firmware with the update data stored in the buffer memory 31 in the case where it is determined that the currently stored firmware of th
    Type: Application
    Filed: September 29, 2003
    Publication date: April 1, 2004
    Applicant: Mitsumi Electric Co., Ltd., a Japanese corporation
    Inventors: Hiromichi Tanimukai, Teruhiko Ohzuchi