Patents by Inventor Frankie Chun-Keung Tom

Frankie Chun-Keung Tom 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).

  • Method for preventing call congestion on outgoing trunks of a local telephone exchange
    Patent number: 5953403
    Abstract: A system and method of preventing call congestion on outgoing trunks of a local telephone exchange is provided. A virtual trunk group representing a percentage of the total trunk capacity is assigned at the local exchange for carrying calls which are likely to cause congestion. In one embodiment of the invention, call segregation is achieved by using the prefixed dialling code 1+1 followed by the destination number. In another embodiment of the invention, segregation is dynamically achieved using Advanced Intelligent Network (AIN) routing.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: September 14, 1999
    Assignee: Stentor Resource Centre, Inc.
    Inventors: Blake F. Lefort, R. Blair Lothian, Henry Wai Chiu Kwok, Gary Bartholomew, Frankie Chun-Keung Tom