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:
Dec. 22, 2015
Filed:
Apr. 18, 2012
Etienne Gaillard, La Celle Saint-Cloud, FR;
Damien Alliez, Noizav, FR;
Nicolas Gaude, Issy les Moulineaux, FR;
Etienne Gaillard, La Celle Saint-Cloud, FR;
Damien Alliez, Noizav, FR;
Nicolas Gaude, Issy les Moulineaux, FR;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
There is provided according to embodiments of the invention a method of changing channels in a hybrid multicast video distribution environment, which is carried out by receiving a plurality of multicast video streams concurrently in a server, buffering first segments of the video streams respectively, wherein the first segments comprise an independently decodable frame and zero or more predicted frames, encoding the first segments to form new segments having new frame quality parameters that are less than the frame quality parameters of the first segments, assembling the first segments and the new segments into respective channel packs of the video streams, and responsively to a request, identifying one of the video streams and transmitting at least a portion of the oldest stored channel pack of the one video stream from the server to a receiving device. Related apparatus and methods are also described.