Patents by Inventor David Tipping

David Tipping 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).

  • Noise suppression system and method
    Patent number: 5210523
    Abstract: A broadband transformer with one-to-one turns ratio provides common mode noise suppression in a transmission line. One winding of the transformer is connected in series with each of the two wires of the transmission line. The transmission line is connected between a multiplexer device, coupled in turn to a plurality of spaced-apart fire detectors, and an output fire alarm control panel. Common mode noise on the transmission line results in only a very small noise current appearing at the central fire alarm panel. As a result, a noise rejection for the system is increased.
    Type: Grant
    Filed: February 27, 1991
    Date of Patent: May 11, 1993
    Assignee: Fire-Lite Alarms, Inc.
    Inventor: David Tipping