Patents by Inventor Patrick Raymond Wiand

Patrick Raymond Wiand 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).

  • Voltage control of optical receiver bandwidth
    Patent number: 6624918
    Abstract: An optical receiver is formed to include a digitally-controlled preamplifier that is used to adjust the bandwidth of the receiver. A measured bandwidth of the receiver is compared to a desired bandwidth and a digital control signal (such as a voltage, current, or any other appropriate parameter) supplied to the preamplifier is thereafter adjusted (either increased or decreased) to increase/decrease the bandwidth of the receiver to the desired value. A voltage regulator and potentiometer may be used as the digital controller and coupled to the input voltage supply of the preamplifier to provide the needed adjustment in voltage.
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: September 23, 2003
    Assignee: TriQuint Technology Holding Co.
    Inventors: John Sargent French, William J. Thompson, Patrick Raymond Wiand