Patents by Inventor Toshihiko Yamaue

Toshihiko Yamaue 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 apparatus for selectively reading data and audio output from CD-ROM
    Patent number: 6229776
    Abstract: An optical disc apparatus includes a microcomputer. The microcomputer causes an optical disc to rotate at a normal speed or a speed of a predetermined number times higher than the normal speed, according to a data read request supplied from a host computer. A PLL is controlled by the microcomputer so that it outputs, by adjusting the frequency-dividing ratio of a variable frequency divider, a first clock for normal-speed reproduction, a second clock for reproduction at a speed of a predetermined number of times, a third clock intermediate between the first clock and the second clock. When the optical disc is accelerated from the normal speed up to the speed of the predetermined number of times, the third clock is used. When the optical disc approaches a desired speed, the second clock is used to read data.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: May 8, 2001
    Assignee: Funai Electric Co., Ltd.
    Inventors: Yasunori Kuwayama, Toshihiko Yamaue
  • Data reproduction apparatus for disk medium
    Patent number: 6091683
    Abstract: A data reproduction apparatus for a disk medium is disclosed.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: July 18, 2000
    Assignee: Funai Techno-Systems Co., Ltd.
    Inventor: Toshihiko Yamaue