System and method for effectively performing an audio/video synchronization procedure
US7120168B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Nov 20, 2001 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Jul 6, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4341
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for effectively performing an audio/video synchronization procedure in a receiver device may preferably include a demultiplexer configured to recover elementary bitstreams from a multiplexed bitstream. The demultiplexer may also preferably extract decode timestamps and output timestamps corresponding to the elementary bitstreams. One or more decoders may then decode the elementary bitstreams to produce decoded frames in accordance with the foregoing decode timestamps. One or more output modules may then process the decoded frames to produce processed frames in accordance with the output timestamps. In accordance with the present invention, an output controller may preferably perform an output timing resynchronization procedure following a program change event to align output timings of the processed frames in accordance with new output timestamps from the selected program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.