Modulating one or more parameters of an audio or video perceptual coding system in response to supplemental information
US7395211B2 · kind B2 · utility
54Cited by
35References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 15, 2001 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Nov 15, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2201/0064
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of modifying the operation of the encoder function and/or the decoder function of a perceptual coding system in accordance with supplemental information, such as a watermark, so that the supplemental information may be detectable in the output of the decoder function. One or more parameters are modulated in the encoder function and/or the decoder function in response to the supplemental information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.