Music replay circuit

Details Music replay circuit Music replay circuit

2011-04-26

2011-04-26

Qin, Jianchun (Department: 2832)

Music

Instruments

Electrical musical tone generation

C700S094000

Reexamination Certificate

active

07932456

ABSTRACT:
A music replay circuit is provided which includes a header analyzing unit which analyzes a header included in each of a plurality of frames in a data stream which are compressed music data and extracts bitrate information included in the header, a decoder which decodes the data stream analyzed by the header analyzing unit, a high-frequency correction unit which generates data in which high-frequency music data is interpolated, for music data decoded by the decoder, and a process setting unit which controls the process applied by the high-frequency correction unit based on the bitrate information extracted by the header analyzing unit, wherein the process setting unit control the process by the high-frequency correction unit according to the bitrate information extracted for each frame.

REFERENCES:
patent: 6553073 (2003-04-01), Ogata
patent: 2006/0288851 (2006-12-01), Kawamura et al.
patent: 2007/0083362 (2007-04-01), Moriya et al.
patent: 2007/0216546 (2007-09-01), Iwasaki et al.
patent: 3820331 (2006-06-01), None

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