Encoding/decoding of digital signals, especially in vector quantization with permutation codes
US7994945B2 · kind B2 · utility
1Cited by
1References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 5, 2009 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Feb 14, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/3082
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention relates to the encoding/decoding of digital signals, especially using permutation codes involving a calculation of combinatorial expressions. According to the invention, the combinatorial expressions are represented by prime factor power decompositions, and determined by a preliminary reading of pre-recorded representations of decompositions of selected integers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.