Patents by Inventor Mohammad Rez Karim

Mohammad Rez Karim 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: 6501810
    Abstract: A receiver for receiving synchronized digital transmissions organized in frames, each frame having a frame start, has a clock for generating pulses at time intervals with respect to a time reference and a counter for generating a count of the time intervals with respect to the time reference. A/D converters sample the digital transmission using the pulses from the clock. A cyclic prefix correlator detects the frame start during a count corresponding to an A/D sample. This count is indicative of the time interval during which the frame start was detected with respect to the reference. A memory is provided for storing a plurality (typically 36) counts indicative of the time interval during which the frame start was detected. A pointer is generated from the counts stored in memory. The pointer is indicative of a projected time interval during which a future frame start is expected to arrive.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: December 31, 2002
    Assignee: Agere Systems Inc.
    Inventors: Mohammad Rez Karim, Robert Louis Cupo, Mohsen Sarraf, Mohammad Zarrabizadeh