Parameter selection in data compression and decompression
US6975773B1 · kind B1 · utility
10Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2003 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | Jul 29, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for selecting an appropriate parameter at decompression are disclosed. In particular, when adaptive block size discrete cosine transform compression is used to compress data, different combinations of sub-blocks can be generated. To decompress the different combinations of sub-blocks, the appropriate parameter is selected based on block size assignment information and the address of data in the data block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.