Compressed code decoding device and audio decoding device

Details Compressed code decoding device and audio decoding device Compressed code decoding device and audio decoding device

2006-06-27

2006-06-27

Dorvil, Richemond (Department: 2654)

Data processing: speech signal processing, linguistics, language

Audio signal bandwidth compression or expansion

C704S501000, C704S502000, C704S503000, C704S504000

Reexamination Certificate

active

07069223

ABSTRACT:
An audio decoding device is provided for decoding NA(where NA>1) channels of audio signals by a sub-band synthesis operation using sub-band synthesis filter data and sub-band signal data. The decoding device includes a first memory section for storing MA(where MA<NA) channels of the sub-band synthesis filter data and the sub-band signal data, a second memory section for storing at least some of NAchannels, an operation section for receiving encoded audio data and decoding the encoded audio data into sub-band signal data, and a data transfer section for, switching, by MAchannels, the sub-band synthesis filter data and the sub-band signal data in the first memory section and the second memory section.

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