Patents by Inventor Jeff Ortiz

Jeff Ortiz 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).

  • Temperature compensated decibel linear variable gain amplifier
    Patent number: 5994961
    Abstract: A gain control signal (VCTRL) is provided to a temperature compensating circuit (12) which produces a differential temperature compensating gain control signal (VDT). A gain compensating circuit (14) receives the differential temperature compensating gain control signal (VDT) and provides a differential gain and temperature compensating gain control signal (VDTG) to an amplifier (16). The differential gain and temperature compensating gain control signal (VDTG) varies the gain of the amplifier (16) to be substantially linear with respect to variation of the gain control signal (VCTRL) and to compensate for variation in temperature.
    Type: Grant
    Filed: December 8, 1997
    Date of Patent: November 30, 1999
    Assignee: Motorola, Inc.
    Inventors: Gerald Lunn, Ka Hung Derek Wong, Jeff Ortiz, On Au-Yeung