Patents by Inventor Subrama Rishnarathamamngalam Viswanathan

Subrama Rishnarathamamngalam Viswanathan 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).

  • Method for video delivery using pyramid broadcasting
    Patent number: 5936659
    Abstract: A method for broadcasting movies within channels of a wide band network by breaking the communications path into a number of logical channels and breaking each movie up into a number of segments of increasing size. The first segment of each movie is the smallest segment is transmitted in sequence over the first logical channel and repeated. The second segment of each movie which is proportionately larger than the first segment of each movie is transmitted in sequence over the second logical channel and repeated. This is repeated for the total number of segments which equals the total number of logical channels. The segments are broadcast in such a way that, once the first segment is received at a client location, the subsequent segments are also received in time, so that the movie can be viewed continuously.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: August 10, 1999
    Assignee: Telcordia Technologies, Inc.
    Inventors: Subrama Rishnarathamamngalam Viswanathan, Tomasz Imielinski