Patents by Inventor Bret A. Pollack

Bret A. Pollack 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).

  • Baseband signal converter for a wideband impulse radio receiver
    Patent number: 6937663
    Abstract: A baseband signal converter device for an impulse radio receiver combines multiple converter circuits and an RF amplifier in a single integrated circuit package. Each converter circuit includes an integrator circuit that integrates a portion of each RF pulse during a sampling period triggered by a timing pulse generator. The integrator capacitor is isolated by a pair of Schottky diodes connected to a pair of load resistors. A current equalizer circuit equalizes the current flowing through the load resistors when the integrator is not sampling. Current steering logic transfers load current between the diodes and a constant bias circuit depending on whether a sampling pulse is present.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: August 30, 2005
    Assignee: Alereon, Inc.
    Inventors: Preston Jett, Lawrence E. Larson, Bret A. Pollack, David A. Rowe
  • Baseband signal converter for a wideband impulse radio receiver
    Publication number: 20020126769
    Abstract: A baseband signal converter device for an impulse radio receiver combines multiple converter circuits and an RF amplifier in a single integrated circuit package. Each converter circuit includes an integrator circuit that integrates a portion of each RF pulse during a sampling period triggered by a timing pulse generator. The integrator capacitor is isolated by a pair of Schottky diodes connected to a pair of load resistors. A current equalizer circuit equalizes the current flowing through the load resistors when the integrator is not sampling. Current steering logic transfers load current between the diodes and a constant bias circuit depending on whether a sampling pulse is present.
    Type: Application
    Filed: January 23, 2002
    Publication date: September 12, 2002
    Inventors: Preston Jett, Lawrence E. Larson, Bret A. Pollack, David A. Rowe
  • Baseband signal converter for a wideband impulse radio receiver
    Patent number: 6421389
    Abstract: A baseband signal converter device for an impulse radio receiver combines multiple converter circuits and an RF amplifier in a single integrated circuit package. Each converter circuit includes an integrator circuit that integrates a portion of each RF pulse during a sampling period triggered by a timing pulse generator. The integrator capacitor is isolated by a pair of Schottky diodes connected to a pair of load resistors. A current equalizer circuit equalizes the current flowing through the load resistors when the integrator is not sampling. Current steering logic transfers load current between the diodes and a constant bias circuit depending on whether a sampling pulse is present.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: July 16, 2002
    Assignee: Time Domain Corporation
    Inventors: Preston Jett, Lawrence E. Larson, Bret A. Pollack, David A. Rowe