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.:

US 7292602 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 06, 2007

Filed:

Dec. 27, 2001
Applicants:

Xiaomei Liu, Milpitas, CA (US);

Sangeeta Ramakrishnan, San Jose, CA (US);

Inventors:

Xiaomei Liu, Milpitas, CA (US);

Sangeeta Ramakrishnan, San Jose, CA (US);

Assignee:

Cisco Techonology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 3/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

Described herein are systems and methods for multiplexing and transmitting video data. The systems and methods use excess bandwidth in a channel available after meeting minimum transmission requirements for all bitstreams. A network device of the invention flexibly allocates this available bandwidth to minimize further rate reduction. More specifically, the network device periodically determines the available bandwidth, and divides the available bandwidth among multiple incoming bitstreams being multiplexed in order to increase downstream decoder buffer levels. By maintaining increased decoder buffer levels, future rate reduction of the video data may be avoided or applied to a lesser degree. Minimizing rate reduction in this manner improves bandwidth usage efficiency, and thus improves video data transmission and end-user output video quality.


Find Patent Forward Citations

Liu, Xiaomei. (2007). Efficient available bandwidth usage in transmission of compressed video data (U.S. Patent No. 7292602). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7292602

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