System and method for lossy source-channel coding at the application layer
US9131238B2 · kind B2 · utility
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Inventors
Key dates
| Filing date | Jun 20, 2011 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Sep 11, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/34
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A source channel encoder, source channel decoder and methods for implementing such devices are disclosed herein. The source channel encoder includes a linear transform encoder configured to generate a plurality of source components. A successive refinement quantizer is configured to generate a plurality of bit planes based on the source components. A systematic linear encoder configured to map the bit planes into channel-encoded symbols. The linear transform encoder may be configured to apply a Discrete Cosine Transform (DCT) or a Discrete Wavelet Transform (DWT). The linear transform encoder may be configured for differential encoding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.