Patents by Inventor John L. Soliday

John L. Soliday 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).

  • RF amplifier bias control method and apparatus
    Patent number: 5311143
    Abstract: A bias control circuit (200) for use with an RF amplifier (202) comprises a detector (R1) coupled to the RF amplifier (202) for detecting a DC current provided to the amplifier (202) from supply voltage (VCC). Thereafter, an adjustment circuit (206-210), coupled to the detector (R1) and the RF amplifier (202) adjusts the amplifier's bias voltage (V bias) as a function of the current draw in order to control the RF amplifier's quiescent operating point (bias current) and thereby optimize the RF amplifier's operation for selected operating performance characteristics like gain performance, intermodulation performance, and efficiency.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: May 10, 1994
    Assignee: Motorola, Inc.
    Inventor: John L. Soliday
  • Laminated thermally conductive substrate
    Patent number: 5041699
    Abstract: The present invention discloses a laminated thermally conductive substrate for supporting microwave power amplifiers, having unique layering thicknesses with materials having similar thermal expansion characteristics, whereby the thermally conductive substrate experiences limited deflection during temperature cycling.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: August 20, 1991
    Assignee: Motorola, Inc.
    Inventor: John L. Soliday