The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 2010
Filed:
Jul. 29, 2004
Ankur Varma, San Francisco, CA (US);
Andrew Wayne Walters, San Jose, CA (US);
John Allen Tardif, San Jose, CA (US);
Brian Lloyd Schmidt, Bellevue, WA (US);
Sajid Salim Topiwala, Sunnyvale, CA (US);
Ankur Varma, San Francisco, CA (US);
Andrew Wayne Walters, San Jose, CA (US);
John Allen Tardif, San Jose, CA (US);
Brian Lloyd Schmidt, Bellevue, WA (US);
Sajid Salim Topiwala, Sunnyvale, CA (US);
Microsoft Corporation, Redmond, WA (US);
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.