Method and system for fast digital channel change utilizing time-stamp management
US9137502B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2010 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Jul 16, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/44004
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video stream demultiplexer receives video streams including a selected current content channel and one or more adjacent content channels. Time stamp management may be concurrently performed on the adjacent content channels while decoding the selected current content channel. Timing information such as Decoding Time Stamp, Presentation Time Stamp values, or random access points may be determined for pictures of the selected current content channel and the adjacent content channels. The determined timing information may be utilized to determine a Program Clock Reference value for the selected current channel and the adjacent channels. A timebase, derived from a PCR rate, may be determined for decoding the selected current content channel. An adjacent content channel, which is primed during decoding of the selected current content channel, may be directly decoded for display if selected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.