Patents by Inventor Bijay K. Roy

Bijay K. Roy 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 and method for providing conference call service
    Patent number: 6760422
    Abstract: A telephone interface (110) that supports a first and a second conference call service is provided in a telephone-capable apparatus (102). An input device (122) is further provided, allowing a conference call conferee to provide participation status data to a controller (116, 118) of the apparatus. The controller provides a message to a switch (104), responsive to the participation status data, instructing the switch to provide the apparatus with communication resources commensurate with the participation status data. When the participation status data indicates that the conferee is a speaking and listening conferee, the message instructs the switch to provide resources sufficient to support the first conference call service and a send-only version of the second conference call service.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: July 6, 2004
    Assignee: Lucent Technologies Inc.
    Inventors: James A. Kowal, Bijay K. Roy