Patents by Inventor Andrew Reid Wender

Andrew Reid Wender 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).

  • Dual automatic gain control and DC offset correction circuit for QAM demodulation
    Patent number: 5761251
    Abstract: A circuit arrangement capable of achieving both DC offset correction and automatic gain control for QAM demodulation. The QAM signal is digitized and then the positive signal samples are averaged and combined with the negative signal samples. The sum of these two averages is an indication of the DC offset while the difference of these two averages is an indication of the gain factor for automatic gain control. Common circuitry is then alternately used to process the DC offset and the gain factor for automatic gain control.
    Type: Grant
    Filed: November 8, 1995
    Date of Patent: June 2, 1998
    Assignee: Philips Electronics North America Corporation
    Inventor: Andrew Reid Wender