Patents by Inventor Christopher B. Foye

Christopher B. Foye 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).

  • Switched gain amplifier circuit
    Patent number: 6724252
    Abstract: An amplifier chain that switches between a saturated mode of operation and a linear mode of operation comprises at least two amplifier stages. A switch is associated with the first amplifier stage and dampens the gain of the amplifier chain when the switch is closed. In a first embodiment, this is done by bypassing the first amplifier stage. In second and third embodiments, this is done by providing a feedback loop to the first amplifier stage. Dynamic device scaling and changing the bias may also be used to affect the performance of the amplifier chain.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: April 20, 2004
    Assignee: RF Micro Devices, Inc.
    Inventors: David Q. Ngo, Mike B. Thomas, Christopher B. Foye
  • SWITCHED GAIN AMPLIFIER CIRCUIT
    Publication number: 20030155972
    Abstract: An amplifier chain that switches between a saturated mode of operation and a linear mode of operation comprises at least two amplifier stages. A switch is associated with the first amplifier stage and dampens the gain of the amplifier chain when the switch is closed. In a first embodiment, this is done by bypassing the first amplifier stage. In second and third embodiments, this is done by providing a feedback loop to the first amplifier stage. Dynamic device scaling and changing the bias may also be used to affect the performance of the amplifier chain.
    Type: Application
    Filed: February 21, 2002
    Publication date: August 21, 2003
    Inventors: David Q. Ngo, Mike B. Thomas, Christopher B. Foye