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. 07, 2015
Filed:
Jun. 04, 2012
Rui Zhang, Pleasanton, CA (US);
Volvet Zhang, Hangzhou, CN;
Xing Jin, Hangzhou, CN;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Techniques for assignment and signaling of the priority information within the scalable video bitstream in a switch-based conferencing system are provided. The assignment of the priority across layers is made that achieves improved user experiences in common use cases, and a signaling scheme is provided that allows the server to efficiently forward the bitstream to each receiver according to its service request and downlink conditions. The impact of uplink bandwidth changes is considered intelligently so that the server can run with very low cost/high capacity, which is important to cloud-based services. Bit fields are defined in the Real-Time Protocol (RTP) extension headers to carry the priority information.