Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Terry D. Beard0
Date of Patent
September 7, 2010
0Patent Application Number
117459910
Date Filed
May 8, 2007
0Patent Primary Examiner
Patent abstract
A method and circuit for deriving a set of multichannel audio signals from a conventional monaural or stereo audio signal uses an auxiliary multichannel spectral mapping data stream. Audio can be played back in stereo and multichannel formats from a conventional stereo signal on compact discs, FM radio, or other stereo or monaural delivery systems. The invention reduces the data rate needed for the transmission of multichannel digital audio.
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