Patents by Inventor Thomas S. Guiffrida

Thomas S. Guiffrida 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).

  • ATM network architecture employing an out-of-band signaling network
    Patent number: 5568475
    Abstract: An Asynchronous Transfer(ATM) network comprising a plurality of ATM switches may be arranged so that it receives calls from Synchronous Transfer Mode (STM) switches that employ out-of-band signaling such that the ATM switches communicate telephone call signaling information between each other and the STM switches via an out-of-band signaling network associated with the ATM network and interface with out-of-band networks associated with the STM switches.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: October 22, 1996
    Assignee: Lucent Technologies Inc.
    Inventors: Bharat T. Doshi, N. Farber, P. Harshavardhana, Rajiv Kapoor, Arik Kashper, Steven S. Katz, Kathleen S. Meier-Hellstern, Thomas S. Guiffrida