Patents by Inventor Richard J. Zaffino

Richard J. Zaffino 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).

  • Wireless integrated voice-data communication system
    Patent number: 5142534
    Abstract: A digital voice-data communication system having a base network control unit coupled to a plurality of fixed transceivers for providing communications to a plurality of portable sets. The base network control unit includes control means for permitting communication between the portable sets within the system, or between the portable sets and a larger external telecommunications network. The system employs frequency hopping, time division multiplexing and demand assigned multiple accessing to permit economy of fixed resources via multiple voice channels for each fixed station transceiver and relatively simple portable sets which may be hand held.
    Type: Grant
    Filed: October 17, 1999
    Date of Patent: August 25, 1992
    Assignee: O'Neill Communications, Inc.
    Inventors: Raymond W. Simpson, Richard J. Zaffino, Adrian A. Giuliani, Sorin Davidovici