Patents by Inventor Seshadri Nambirajan

Seshadri Nambirajan 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).

  • Multiple-access scheme for packet voice that uses voice activity detection
    Patent number: 7548529
    Abstract: A packet transmission arrangement maintains a certain minimum bandwidth for a call. When a silence period is detected, the bandwidth that is allocated to the call is reduced. When a speech period is detected, the reduced bandwidth remains in force, unless there is spare capacity, in which case a full measure of bandwidth is allocated to the call.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: June 16, 2009
    Inventor: Seshadri Nambirajan
  • Multiple-access scheme for packet voice that uses voice activity detection
    Publication number: 20060013206
    Abstract: A packet transmission arrangement maintains a certain minimum bandwidth for a call. When a silence period is detected, the bandwidth that is allocated to the call is reduced. When a speech period is detected, the reduced bandwidth remains in force, unless there is spare capacity, in which case a full measure of bandwidth is allocated to the call.
    Type: Application
    Filed: September 14, 2005
    Publication date: January 19, 2006
    Inventor: Seshadri Nambirajan
  • Multiple-access scheme for packet voice that uses voice activity detection
    Patent number: 6970442
    Abstract: A packet transmission arrangement maintains a certain minimum bandwidth for a call. When a silence period is detected, the bandwidth that is allocated to the call is reduced. When a speech period is detected, the reduced bandwidth remains in force, unless there is spare capacity, in which case a full measure of bandwidth is allocated to the call.
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: November 29, 2005
    Assignee: AT&T Corp.
    Inventor: Seshadri Nambirajan