Decoding variable length codes in media applications
US8502709B2 · kind B2 · utility
8Cited by
62References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 17, 2007 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Sep 17, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An approach to decoding variable length code (VLC) symbols is described. In one embodiment, a method of decoding VLC symbols is detailed. This method involves obtaining a bitstream sample from a bitstream, and comparing the bitstream sample against a threshold value, to obtain a VLC group number. Information associated with a VLC group is retrieved, using this VLC group number. The current VLC symbol is extracted from the bitstream, using the VLC group information, and the corresponding symbol value is obtained, using the current VLC symbol and the VLC group information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.