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:
Jun. 10, 2014
Filed:
Mar. 07, 2006
BO Åström, Stockholm, SE;
Bo Åström, Stockholm, SE;
Telefonaktiebolaget L M Ericcson (Publ), Stockholm, SE;
Abstract
A system and method for time-shifting and chase-play for an IPTV system. A control channel is established between an originating user's set top box (STB) and an IPTV Application Server (IPTV-AS) utilizing SIP signaling over an IP Multimedia Subsystem. For time-shifting, the STB sends a start time-shifting command to the IPTV-AS over the control channel, and the IPTV-AS sends a start recording command to a Network Private Video Recorder (N-PVR). When the user is ready to resume viewing, the STB sends a start chase-play command to the IPTV-AS to establish a unicast channel. The IPTV-AS sends a playback command to the N-PVR to begin playback of the time-shifted content.