Patents by Inventor Kalampukattussery C. Babu

Kalampukattussery C. Babu 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).

  • Arrangement for utilizing a passive line concentrator in a managed token ring network
    Patent number: 5303387
    Abstract: An arrangement whereby a passive line concentrator (100) can be connected in a managed token ring network includes a special concentrator port (200) in an active concentrator (10) which is adapted to have inserted the ring-in port (130) of the passive line concentrator. The special concentrator port of the active concentrator supplies a small phantom current to the passive concentrator, which returns the phantom current only if it has at least one active port. Detection of the returned phantom current controls insertion of the special concentrator port into the network.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: April 12, 1994
    Assignee: The Whitaker Corporation
    Inventors: Steven J. Millard, Bret A. Matz, Hemant K. R. Kumar, Kalampukattussery C. Babu