Patents by Inventor Joseph B. Sergi

Joseph B. Sergi 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).

  • Apparatus for connecting multiple passive stars in a fiber optic network
    Patent number: 5073982
    Abstract: A fiber optic local area network including a plurality of passive star couplers each capable of connecting to a plurality of users. One connection input to and output from each passive star coupler is connected to a respective output and input of an active star coupler. The active star coupler stores the round-trip transmission times to each passive star coupler and upon receipt of a signal from a passive star coupler inhibits output to that passive star coupler for the signal duration and inhibits input from all other passive star couplers for the signal duration plus the round-trip transmission delay.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: December 17, 1991
    Assignee: General Electric Company
    Inventors: Jeffrey P. Viola, Joseph B. Sergi