Patents by Inventor Helder Da-Silva-Valente

Helder Da-Silva-Valente 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).

  • Decoding of low-complexity signals transmitted by a constellation modulation
    Patent number: 7336718
    Abstract: A method decodes a noisy signal from the coordinates of a point in a point constellation, each point associated with a digital data item of a determined number of bits, consisting of determining components of a received point; determining a reference point corresponding to the constellation point closest to the received point; determining at least one concurrent point corresponding to the constellation point closest to the reference point, having a bit of determined rank opposite to the bit of determined rank of the reference data; and determining, at least for the bit of the reference digital data at said determined rank, a precision data item based the received, reference, and concurrent points, in which the determination of the bits of the concurrent point is performed based on the values of some of the bits of the reference digital data and on said rank.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: February 26, 2008
    Assignee: STMicroelectronics SA
    Inventors: Helder Da-Silva-Valente, Frederic Lehmann
  • Decoding of low-complexity signals transmitted by a constellation modulation
    Publication number: 20040141564
    Abstract: A method decodes a noisy signal from the coordinates of a point in a point constellation, each point associated with a digital data item of a determined number of bits, consisting of determining components of a received point; determining a reference point corresponding to the constellation point closest to the received point; determining at least one concurrent point corresponding to the constellation point closest to the reference point, having a bit of determined rank opposite to the bit of determined rank of the reference data; and determining, at least for the bit of the reference digital data at said determined rank, a precision data item based the received, reference, and concurrent points, in which the determination of the bits of the concurrent point is performed based on the values of some of the bits of the reference digital data and on said rank.
    Type: Application
    Filed: December 12, 2003
    Publication date: July 22, 2004
    Inventors: Helder Da-Silva-Valente, Frederic Lehmann