Patents by Inventor Geoffrey E. Brehner

Geoffrey E. Brehner 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).

  • Analog voltage reference generator system
    Patent number: 5541551
    Abstract: A supply voltage detect circuit is described which generates a control signal indicating the status of VCC to be at 5.0 or 3.3 volts. This control signal is used to generate analog reference signals used by A/D and/or D/A circuitry in an audio processing integrated circuit and by other circuitry to control clock frequencies or current drive.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: July 30, 1996
    Assignee: Advinced Micro Devices, Inc.
    Inventors: Geoffrey E. Brehner, Paul G. Schnizlein