Time-shifting and chase-play for an IPTV system
US8752107B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 7, 2006 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Apr 15, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6587
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.