Patents by Inventor Sander J. Klerk

Sander J. Klerk 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).

  • System comprising a magnetic-tape cassette and a magnetic-tape apparatus, and magnetic-tape cassette, tape-cleaning means and tape-cleaning element for use in the system
    Patent number: 5488517
    Abstract: A system including a magnetic-tape cassette and a magnetic-tape apparatus for recording and/or reproducing information in digital form on/from a magnetic tape. The information is stored in a plurality of parallel longitudinal tracks on the magnetic tape in successive information blocks in the longitudinal direction of the magnetic tape. The tape apparatus includes an error correction device for correcting read errors in the digital information read from the magnetic tape. The error-correction device is capable of correcting a maximum number of n successive information blocks on the magnetic tape. The magnetic-tape cassette has at least one tape-cleaning element having an active surface in contact with a coating side of the magnetic tape and, in a direction parallel to the longitudinal axis of the magnetic tape, has a dimension smaller than the overall longitudinal dimension of two times n information blocks.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: January 30, 1996
    Assignee: U.S. Philips Corporation
    Inventors: Gerardus W. A. Akkermans, Augustinus L. Braun, Sander J. Klerk