Patents by Inventor Samuel McMaster

Samuel McMaster 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).

  • Network terminating unit for connecting analog and digital communication systems to a digital network
    Patent number: 5550913
    Abstract: A network terminating unit, for interconnecting analog and digital communication systems to a digital network, having an analog voice module for connection to an analog private exchange, a high speed data communication module for connection to high speed communications devices, and an interface for common channel signalling connection to a digital network. The unit may further include a module for common channel signalling connectivity to a digital private exchange.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: August 27, 1996
    Assignee: The Post Office
    Inventors: Samuel McMaster, Stephen A. Kirwan