Patents by Inventor John Sramek, Jr.

John Sramek, Jr. 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).

  • Improved sigma-delta type analog-to-digital converter and method
    Patent number: 5345236
    Abstract: A multiplexed sigma delta analog-to-digital (A/D) converter for low frequency applications has a single oversampling modulator together with a relatively high cutoff lowpass filter together with individual line frequency (50 or 60 Hz) rejection filters for each output channel.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: September 6, 1994
    Assignee: Harris Corporation
    Inventor: John Sramek, Jr.