Patents by Inventor Sergio D. Servetto

Sergio D. Servetto 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: 6516297
    Abstract: Data is transmitted using multiple description vector quantization by first quantizing the source vector at a lattice vector quantizer. After quantization, a labeling function is applied to the quantized source vector, creating a plurality of data streams. Each data stream is encoded and transmitted over a separate channel. Furthermore, the encoded data is decoded by first retrieving a representation of a sublattice point from a set of sublattice points from the data stream and then, determining a single data code word being associated with the retrieved representation of the sublattice point.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: February 4, 2003
    Assignee: AT&T Corp.
    Inventors: Sergio D. Servetto, Neil J. A. Sloane, Vinay A. Vaishampayan