Patents by Inventor David P. Chabinec

David P. Chabinec 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).

  • Patent number: 5631797
    Abstract: An overvoltage protection circuit using a diode bridge and a thyristor. The inputs to the bridge (first and second terminals) are coupled to a telephone line to be protected. The positive output of the bridge connects to a ground while the negative output of the bridge (intermediate node) connects through a thyristor to the ground. The thyristor is triggered into conduction when the voltage on the negative output of the bridge exceeds a reference voltage. The reference voltage is preferably the battery voltage for the telephone line.
    Type: Grant
    Filed: July 24, 1995
    Date of Patent: May 20, 1997
    Assignee: Lucent Technologies Inc.
    Inventors: David P. Chabinec, Dean M. Umberger