Patents by Inventor Ali Ghrayeb

Ali Ghrayeb 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).

  • RAM-search processor for intersymbol interference cancellation
    Patent number: 6532272
    Abstract: A method of canceling intersymbol interference (ISI) for a signal bit ak at time k, where k&egr;{0, ±1, ±2, . . . } in data transmission and data storage channels, by modelling the channel; training a RAM with known values for ak to acquire the model of the channel; searching for the optimal address for the RAM, with past, present, and future values of ak, to be used in minimizing the ISI in the received signal; and canceling ISI from the received signal. A RAM-search method and apparatus is presented which operates in cooperation with Viterbi detection and decoding, as well as with BCJR-APP detection and decoding.
    Type: Grant
    Filed: August 12, 1999
    Date of Patent: March 11, 2003
    Assignee: New Mexico State University Technology Transfer Corporation
    Inventors: William E. Ryan, Ali Ghrayeb