Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hideki Yamauchi0
Tatsushi Oyama0
Date of Patent
December 4, 2007
0Patent Application Number
103906240
Date Filed
March 19, 2003
0Patent Primary Examiner
Patent abstract
A volume adjustment unit reduces the volume of audio data. By coding the audio data where the volume is reduced in advance, the possibility of being decoded in a manner of exceeding the maximum bit number at a reproduction-side apparatus is reduced. Thus, the volume adjustment unit needs to reduce the volume of the audio data during a processing at a data input unit up to a quantization coding unit, that is, before the end of quantizing, based on a compression ratio.
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