Patents by Inventor Dominik Margraf

Dominik Margraf 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).

  • Read/write channel
    Patent number: 6594094
    Abstract: An improved sampled amplitude read/write channel is provided. The system is an integrated Generalized Partial Response Maximum Likelihood (GPRML) read channel incorporating Read, Write, and Servo modes of operation. One implementation includes a 32/34 rate parity code and matched Viterbi detector, a 32 state Viterbi detector optimal parity processor, robust frame synchronization, self-adaptive equalization, thermal asperity detection and compensation, adaptive magneto-resistive asymmetry compensation, low latency interpolated timing recovery and programmable write precompensation.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: July 15, 2003
    Assignee: Infineon Technologies North America Corp.
    Inventors: James W. Rae, William Bliss, Jonathan Ashley, Razmik Karabed, Stephen J. Franck, Fritz Mistlberger, Matthias Driller, Heinrich Stockmanns, Dominik Margraf
  • Read/write channel
    Publication number: 20020154430
    Abstract: An improved sampled amplitude read/write channel is provided. The system is an integrated Generalized Partial Response Maximum Likelihood (GPRML) read channel incorporating Read, Write, and Servo modes of operation. One implementation includes a 32/34 rate parity code and matched Viterbi detector, a 32 state Viterbi detector optimal parity processor, robust frame synchronization, self-adapive equalization, thermal asperity detection and compensation, adaptive magneto-resistive asymmetry compensation, low latency interpolated timing recovery and programmable write precompensation.
    Type: Application
    Filed: December 18, 2001
    Publication date: October 24, 2002
    Inventors: James W. Rae, William Bliss, Jonathan Ashley, Razmik Karabed, Stephen J. Franck, Fritz Mistlberger, Matthias Driller, Heinrich Stockmanns, Dominik Margraf