Patents by Inventor Didier J. Richard Van Nee

Didier J. Richard Van Nee 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).

  • VCO ringing correction in packet switched wireless networks
    Patent number: 8027300
    Abstract: Systems and methodologies are described that facilitate mitigating ringing effects of a voltage-controlled oscillator upon turning on a transmitter. A receiver generates at least one frequency offset estimate subsequent to an antecedent frequency offset estimate that is potentially erroneous due to ringing effects. The receiver extrapolates a phase error on upcoming symbols based upon a delta between the subsequent and antecedent frequency offset estimates. The phase error is employed to correct the upcoming symbol for ringing effects. In addition, the transmitter can detect a packet in advance of being ready for transmission and power up upon detection to allow the ringing to settle.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: September 27, 2011
    Assignee: Qualcomm Incorporated
    Inventors: Albert Van Zelst, Didier J. Richard Van Nee, Vincent Knowles Jones, IV, Tracy Hall
  • VCO RINGING CORRECTION IN PACKET SWITCHED WIRELESS NETWORKS
    Publication number: 20080089450
    Abstract: Systems and methodologies are described that facilitate mitigating ringing effects of a voltage-controlled oscillator upon turning on a transmitter. A receiver generates at least one frequency offset estimate subsequent to an antecedent frequency offset estimate that is potentially erroneous due to ringing effects. The receiver extrapolates a phase error on upcoming symbols based upon a delta between the subsequent and antecedent frequency offset estimates. The phase error is employed to correct the upcoming symbol for ringing effects. In addition, the transmitter can detect a packet in advance of being ready for transmission and power up upon detection to allow the ringing to settle.
    Type: Application
    Filed: October 15, 2007
    Publication date: April 17, 2008
    Applicant: QUALCOMM INCORPORATED
    Inventors: Albert Van Zelst, Didier J. Richard Van Nee, Vincent Knowles Jones, Tracy Hall