Apparatus and method for applying unequal error protection during wireless video transmission
US8006168B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2006 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | Jun 22, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/015
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Wireless transmission of high-definition video, whether essentially uncompressed or compressed, is prone to errors during reception due to the condition of the wireless link. To ensure video quality during changing link conditions it is desirable to ensure that those portions of the video that represent the more important components of the video signal, such as the lower special frequencies or most significant bits, are assured correct reception at the receiver. Bandwidth limitations of the wireless link affect the amount of data that can be sent over the link. Hence, using a high level error recovery for all of the information is not feasible. Accordingly, a method and apparatus for unequal error protection is disclosed that provides a higher level of error protection to the more important elements of the transmission while affording less error protection to the other elements of the transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.