US Patent 6970569 Audio processing apparatus and audio reproducing method
Patent 6970569 was granted and assigned to Sony on November, 2005 by the United States Patent and Trademark Office.
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Patent abstract
An audio processing apparatus that includes a first filter for converting n-channel (n≧1, positive integer) audio signals input from at least one signal source into two-channel signals, a pair of second filters to which two-channel output signals from the first filter means are input and which have transfer functions that are not correlated, and an output unit for supplying a pair of output signals from the pair of second filters to left and right loudspeaker units of a headphone device.
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Patent Inventor Names
Yuji Yamada0
Date of Patent
November 29, 2005
0Patent Application Number
094299860
Date Filed
October 29, 1999
0Patent Primary Examiner
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US Patent 6970569 Audio processing apparatus and audio reproducing method
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