Apparatus and method for down converting multichannel...

Details Apparatus and method for down converting multichannel... Apparatus and method for down converting multichannel...

2001-02-08

2008-11-18

Mei, Xu (Department: 2615)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Digital audio data processing system

C381S119000, C369S004000

Reexamination Certificate

active

07454257

ABSTRACT:
An apparatus for recording a multichannel program includes an audio converter adapted to convert said multichannel program at least partially into a modified program requiring less channels than said multichannel program. The audio converter including control elements used to modify the conversion process used to generate said modified program. A coefficient generator coupled to said converter to generate a coefficient indicative of the operation of said controls. A mixer is arranged to mix the coefficient with program data. A recorder is arranged to record the mixed data on a medium, whereby the medium can be played either using a multichannel player device or a reduced channel player device by using said coefficient.

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International Search Report; corresponding PCT/US02/21649; dated Jan. 15, 2003; Applicant: Warner Music Group Inc; Inventors: AJ McPherson, GH Lydecker.

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