US Patent 7792307 Multichannel spectral mapping audio apparatus and method
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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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US Patent 07792307 Multichannel spectral mapping audio apparatus and method US Patent 7792307 Multichannel spectral mapping audio apparatus and method
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Patent Number
0779230700
Patent Number
779230700
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Golden AI
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Patent Jurisdiction
Patent Number
077923070
Date of Patent
September 7, 2010
0Patent Application Number
117459440
Date Filed
May 8, 2007
0Official Website
Patent Primary Examiner
Edits on 27 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
077923070
Date of Patent
September 7, 2010
0Patent Application Number
117459440
Date Filed
May 8, 2007
0Official Website
Patent Primary Examiner
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Golden AI
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US Patent 07792307 Multichannel spectral mapping audio apparatus and method
Infobox
Is a
Patent jurisdiction
Patent number
07792307
Date of patent
September 7, 2010
Patent application number
11745944
Date Filed
May 8, 2007
Patent primary examiner
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