Patents by Inventor Kumar K. R. Hemant

Kumar K. R. Hemant 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).

  • Trunk cable fault detection and reconfiguration arrangement in a ring commnications network
    Patent number: 5282237
    Abstract: A ring communications network having a plurality of line concentrators (10) each including a ring-in port (16), a ring-out port (18), and a plurality of station ports (20), includes the feature of being able to detect a fault in the trunk cable between concentrators and reconfiguring the ring to bypass that fault. Fault detection is accomplished by injecting a phantom DC voltage at the ring-out port and sensing whether current due to that voltage is present at both the ring-out port and the ring-in port of the next adjacent concentrator in the ring.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: January 25, 1994
    Assignee: The Whitaker Corporation
    Inventors: K. C. Babu, Michael S. Cohen, Thomas A. Donnelly, Kumar K. R. Hemant, Bret A. Matz