Patents by Inventor Gregory Stephen Ellard

Gregory Stephen Ellard 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).

  • Digital processor with viterbi process
    Patent number: 5748650
    Abstract: A signal processor with an embedded Viterbi co-processor which works in parallel with the signal processor is disclosed.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: May 5, 1998
    Assignee: Lucent Technologies, Inc.
    Inventors: David Mark Blaker, Gregory Stephen Ellard, Muhammad Shafiul Mobin
  • MLSE before derotation and after derotation
    Patent number: 5724390
    Abstract: There is an equalizer or a receiver including an equalizer which has means to factor detected symbols transmitted over a transmission channel into a magnitude portion and a repetitive phase portion. The receiver further has means to generate modified tap weights by multiplying the repetitive phase portion by tap weights representative of the channel. Modified tap weights are generated by multiplying the repetitive phase portion by tap weights representative of the channel. The modified tap weights are convolved with bits of possible states to generate possible transmitted symbols. A maximum likelihood sequence estimation is performed on the possible transmitted symbols comparing each possible transmitted symbol to a received symbol to generate an MLSE detected symbol. The detected symbol is multiplied by a rotating vector to generate a decoded symbol.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: March 3, 1998
    Assignee: Lucent Technologies Inc.
    Inventors: David Mark Blaker, Marc Stephen Diamondstein, Gregory Stephen Ellard, Mohammad Shafiul Mobin