Patents by Inventor Jeffrey Lihbor Yiin

Jeffrey Lihbor Yiin 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 predistortion technique for WCDMA wireless communication system and method of operation thereof
    Patent number: 7203247
    Abstract: A Wideband Code-Division Multiple Access (WCDMA) transceiver and a method of operating the same. In one embodiment, the transceiver includes: (1) a transmit chain having a lookup table that provides coefficients to a digital predistorter based on power indicators and (2) a predistorter training circuit, coupled to the transmit chain, that employs a receive chain of the WCDMA transceiver to provide a digital compensation signal that is a function of an output of the transmit chain and employs both the power indicators and the digital compensation signal to cause the lookup table to provide alternative coefficients to the digital predistorter thereby to reduce distortion in the output.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: April 10, 2007
    Assignee: Agere Systems Inc.
    Inventors: Ruediger Bauder, Qing Yan, Jeffrey Lihbor Yiin
  • Digital predistortion technique for WCDMA wireless communication system and method of operation thereof
    Publication number: 20030035494
    Abstract: A Wideband Code-Division Multiple Access (WCDMA) transceiver and a method of operating the same. In one embodiment, the transceiver includes: (1) a transmit chain having a lookup table that provides coefficients to a digital predistorter based on power indicators and (2) a predistorter training circuit, coupled to the transmit chain, that employs a receive chain of the WCDMA transceiver to provide a digital compensation signal that is a function of an output of the transmit chain and employs both the power indicators and the digital compensation signal to cause the lookup table to provide alternative coefficients to the digital predistorter thereby to reduce distortion in the output.
    Type: Application
    Filed: July 23, 2001
    Publication date: February 20, 2003
    Inventors: Ruediger Bauder, Qing Yan, Jeffrey Lihbor Yiin