Apparatus and method for processing multi-channel audio...

Electrical audio signal processing systems and devices – Binaural and stereophonic – Quadrasonic

Reexamination Certificate

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C381S023000, C704S501000, C704S503000, C704S504000, C704S200000, C704S200100, C704S203000, C704SE19005

Reexamination Certificate

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07961889

ABSTRACT:
An apparatus for and a method of processing a multi-channel audio signal using space information. The apparatus includes: a main coding unit down mixing a multi-channel audio signal by applying space information to surround components included in the multi-channel audio signal, generating side information using the multi-channel audio signal or a stereo signal of a down-mixed result, coding the stereo signal and the side information, and transmitting the coded result as a coding signal; and a main decoding unit receiving the coding signal, decoding the stereo signal and the side information using the received coding signal, up mixing the decoded stereo signal using the decoded side information, and restoring the multi-channel audio signal.

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patent: 2003/0021423 (2003-01-01), Wood
patent: 2004/0091118 (2004-05-01), Griesinger
patent: 2001-0113782 (2001-12-01), None
patent: WO 03/090208 (2003-10-01), None
David Griesinger, “Progress in 5-2-5 Matrix Systems”, 103rdAES Convention, Sep. 26, 1997, pp. 1-34, XP007900011, New York, USA.
G. Stoll, “MPEG Audio Layer II: A Generic Coding Standard for Two and Multichannel Sound for DVB, DAB and Computer Multimedia”, International Broadcasting Convention, 1995, Amsterdam, Netherlands, London, UK, IEE, UK, 1995, pp. 136-144, XP006528918, ISBN: 0-85296-644-X.
Chinese Office Action issued Jun. 5, 2009 in correspondence to Chinese Patent Application No. 200510123902.5.

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