Patents by Inventor Fatih Unal

Fatih Unal 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: 5802076
    Abstract: An audio error mitigation technique for a TDMA communication system is disclosed. An audio error is assumed if any one of the following criteria is met: a detection of a CRC error in the control data or audio data within a slot; the received signal strength is below a certain threshold; or, the detection of an invalid code word, such as an all zero nibble. If either of the criteria is met, and the slot contains audio data, an error mitigation routine is performed. In one embodiment, the error mitigation routine replaces the faulty burst with the previous non-faulty burst. In another mitigation routine, any dv/dt spikes in the faulty burst are detected and smoothed by averaging nearby samples. In one embodiment, both mitigation routines are selectable in the TDMA system.
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: September 1, 1998
    Assignee: National Semiconductor Corporation
    Inventors: David L. Weigand, Charles J. Malek, Gerard G. Socci, Fatih Unal, S. Dilip