Patents by Inventor Sajid Salim Topiwala

Sajid Salim Topiwala 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).

  • Packet multiplexing multi-channel audio
    Patent number: 7706415
    Abstract: Systems and methods for providing multi-channel audio using a reduced amount of resources for the decoding process. A 5.1 channel audio stream is divided into three stereo streams. The packets from each of three stereo streams are multiplexed to create a pseudo-5.1 channel audio stream. The pseudo 5.1 channel audio stream is then decoded and demultiplexed at the output to create the output 5.1 channel audio sound. As such, the decoder resources only have decode a single pseudo 5.1 stream. This technique is equally applicable to 7.1 or other multi-channel formats.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: April 27, 2010
    Assignee: Microsoft Corporation
    Inventors: Ankur Varma, Andrew Wayne Walters, John Allen Tardif, Brian Lloyd Schmidt, Sajid Salim Topiwala