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. 09, 2013
Filed:
Apr. 03, 2007
Mats Cedervall, H{hacek over (a)}rnösand, SE;
Hans Byström, Sundbyberg, SE;
Torbjörn Einarsson, Stockholm, SE;
Mats Cedervall, H{hacek over (a)}rnösand, SE;
Hans Byström, Sundbyberg, SE;
Torbjörn Einarsson, Stockholm, SE;
Telefonaktiebolaget LM Ericsson (Publ), Stockholm, SE;
Abstract
A method and system of operating a Reliable Transmission Protocol switch node to provide an IPTV multicast is provided. According to an embodiment of the invention, IP packets transporting an encrypted media stream are received from an IPTV Head-end. The media stream contains complete image frames. Unencrypted identifiers identifying packets containing complete image frame data are also received. The received packets are stored in a buffer, and on receipt of a request from a media renderer to provide the IPTV multicast, the packet(s) containing the last complete image frame in the media stream and all subsequent packets are sent to the media renderer.