Variable length decoder, encoder, and variable length decoding method
US8072358B2 · kind B2 · utility
2Cited by
18References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 31, 2009 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Dec 26, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/93
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A variable length decoder that decodes a variable length code to output data including a run and a level, the variable length decoder includes a memory that stores an output format of a run and a level according to a prefix for specifying an area which is generated by dividing a run-level plane based on the run; a extraction circuit that extracts the prefix, run computation data, and level computation data from the variable length code; and an output circuit that accesses the memory based on the prefix and outputs the data based on the run computation data and the level computation data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.