Transform-based coding/decoding, with adaptive windows
US8253609B2 · kind B2 · utility
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6References
19Claims
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Key dates
| Filing date | Dec 11, 2008 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Mar 23, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/022
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides coding/decoding a digital signal, in particular using a transform with overlap employing weighting windows. In the invention, two consecutive and equal-size blocks of samples of the signal may be weighted by respective different successive windows. These two windows may be chosen independently of each other according to a criterion specific to the characteristics of the signal (entropy, data rate/distortion, etc.) that are determined for each of the two blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.