Method and apparatus for scalable encoding and method and...

Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission

Reexamination Certificate

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C704S200100, C704S225000, C704S229000, C704S500000, C375S240110, C375S240030

Reexamination Certificate

active

10636149

ABSTRACT:
An apparatus for scalable encoding a spectrum of a signal including audio and/or video information, with the spectrum comprising binary spectral values, includes a means for generating a first sub-scaling layer and a second sub-scaling layer in addition to a means for forming the encoded signal, with the means for forming being implemented so as to include the first sub-scaling layer and the second sub-scaling layer into the encoded signal that the first and the second sub-scaling layer are separately decodable from each other. In contrast to a full-scaling layer, a sub-scaling layer includes only the bits of a certain order of a part of the binary spectral values in the band, so that, by additionally decoding a sub-scaling layer, a more finely controllable and a more finely scalable precision gain may be achieved.

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T. Moriya, “A Design of Lossy and Lossless Scalable Audio Coding”, Proc. ICASSP, 2000.
Sung-Hee Park, et al., “Multi-Layer Bit-Scliced Bit-Rate Scalable Audio Coding”, 103, AES Convention Sep. 26-29, 1997.
Geiger, et al., “Audio Coding Based on Integer Transforms”, 111 AES Convention, New York, 2001.
“Coding of Audio Visual Objects, Audio”, International Standard 14496-3, 2nd edition, ISO/IEC Moving Pictures Expert Group, ISO/IEC JTCI/SC29/WG11, 2001.
Jin, W; Scordilis, M.S.: A scalable subband audio coding scheme for ATM environments. In: Proceedings of the 2001 IEEE Southeast Conf., SECON2001, Clemenson, S.C., Mar. 3-Apr. 1, 2001, pp. 271-275.

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