Exploitation of null packets in packetized digital television systems
US7848364B2 · kind B2 · utility
1Cited by
52References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2008 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Dec 13, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4348
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for adding auxiliary data DA to an output data stream from a statistical multiplexer is disclosed. An auxiliary multiplexer accepts a statistically multiplexed data stream, and substitutes auxiliary data packets for null data packets. The auxiliary multiplexer controls the number of null packets in the statistically multiplexed data stream by controlling the target bandwidth BT of the statistical multiplexer, or by modifying the statistical multiplexer equation to make the auxiliary data stream a participant in the negotiation process of allocating throughput among the data sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.