Patents by Inventor Ludovicus Verhulst

Ludovicus Verhulst 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).

  • Apparatus for automatically reproducing preferred selection from a record carrier
    Patent number: 4779252
    Abstract: A compact-disc digital audio player is described in which a user can store preferred selections on selected discs in a memory. The player can identify the disc from the subcode on the disc and can read the corresponding preferred selection out of the memory to play this preferred selection.
    Type: Grant
    Filed: June 17, 1985
    Date of Patent: October 18, 1988
    Assignee: U.S. Philips Corp.
    Inventors: Pieter H. Custers, Ludovicus Verhulst