Patents by Inventor Kurk D. Mathews

Kurk D. Mathews 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).

  • High bandwidth information channel with optocoupling isolation
    Patent number: 5278515
    Abstract: An accurate direct current to 1 MHz (or more) analog information channel with 7.5 kV input to output isolation is provided using a commercially available opto-electronic isolator. The relatively slow response, (limited bandwidth) of the LED portion of the opto-electronic isolator is overcome by providing a frequency compensated negative feedback loop around the servo photodetector in the opto-electronic isolator. The feedback loop includes proper frequency compensation for the phase lag properties of both the LED and the servo photodetector, thus extending the bandwidth well beyond the 200 KHz typical of such opto-electronic isolators.
    Type: Grant
    Filed: December 24, 1992
    Date of Patent: January 11, 1994
    Assignee: Uniphase Corporation
    Inventor: Kurk D. Mathews