Patent · US Active

System and method for lossy source-channel coding at the application layer

US9131238B2 · kind B2 · utility

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Key dates

Filing dateJun 20, 2011
Grant dateSep 8, 2015
Priority date
Expiry dateSep 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.

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