Data processing: generic control systems or specific application – Specific application – apparatus or process – Digital audio data processing system
Reexamination Certificate
2002-11-14
2008-09-23
Tran, Sinh (Department: 2615)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Digital audio data processing system
C704S500000
Reexamination Certificate
active
07428440
ABSTRACT:
A method and apparatus for preserving matrix-surround information in encoded audio/video includes a receiver operative to receive matrix-surround encoded audio signals via a modem, separate the audio signals into a frequency spectrum having discrete audio frequencies, and determine a cutoff threshold used to encode the matrix-surround encoded audio signals. The method and apparatus further includes a decoder operative to decode a first set of the audio frequencies below the determined cutoff threshold using a first matrix-surround preserving audio encoding method and to decode a second set of audio frequencies above the cutoff threshold using a second non matrix-surround preserving audio encoding method.
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Cooke Kenneth Edward
Schildbach Wolfgang A.
Axios Law Group
Briney III Walter F
Philipp Adam L. K.
RealNetWorks, Inc.
Tran Sinh
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