System and method for a dyadic-monotonic (DM) codec
US6847317B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | May 28, 2003 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | May 28, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/40
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A coder and/or decoder system and method are provided including a variable modulus. As an option, the modulus may reflect a steepness of a probability distribution curve associated with a compression algorithm (i.e. a negative exponential of the probability distribution). Moreover, the modulus may depend on a context of a previous set of data, while avoiding increasing as a function of a run length (i.e. a plurality of identical bits in a sequence).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.