Patents by Inventor Tomoji Satake

Tomoji Satake 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).

  • Patent number: 4656539
    Abstract: In a system for recording and reproducing digital signals on a magnetic tape by using a rotary head, in which signals are recorded as a series of slanted tracks without guard bands, a pilot signal that controls tracking alignment of a playback head is recorded at a particular position in a specific pilot signal record region, independent from the information signal record region. The pilot signal is arranged at first predetermined positions separated from the ends of the slanted tracks in the pilot signal record region on every other one of the slanted tracks and at second predetermined positions separated from the ends of the slanted tracks in the pilot signal record region on the alternate ones of the slanted tracks. An erase signal can also be recorded in the pilot signal record region such that a start position of the erase signal corresponds substantially to a center portion of the pilot signal on the adjacent track.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: April 7, 1987
    Assignee: Sony Corporation
    Inventors: Hiraku Sugiki, Kentaro Odaka, Tomoji Satake, Takashi Ohmori, Makoto Yamada