Patents by Inventor William K. Heine

William K. Heine 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).

  • Disc phonograph record playback by laser generated diffraction pattern
    Patent number: 3992593
    Abstract: A laser beam is directed at the groove of a conventional disc phonograph record as it rotates, creating a reflected interference/diffraction pattern of the groove walls. The magnitude and rate of displacement of the interference/diffraction pattern is sensed and converted into an audio reproduction signal of the original phonograph recording.
    Type: Grant
    Filed: August 22, 1974
    Date of Patent: November 16, 1976
    Inventor: William K. Heine
  • Disc phonograph record playback by laser generated diffraction pattern
    Patent number: RE30723
    Abstract: A laser beam is directed at the groove of a conventional disc phonograph record as it rotates, creating a reflected interference/diffraction pattern of the groove walls. The magnitude and rate of displacement of the interference/diffraction pattern is sensed and converted into an audio reproduction signal of the original phonograph recording.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: August 25, 1981
    Inventor: William K. Heine