Up-sampling television audio signals for encoding
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United States of America Patent
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Dec 29, 2009
Grant Date -
Feb 23, 2006
app pub date -
Aug 3, 2005
filing date -
Aug 3, 2004
priority date (Note) -
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Abstract
A television audio signal encoder includes an up-sampler that inserts additional samples into a sum signal, a difference signal, and/or a secondary audio program signal to increase the sample rate of the corresponding signal or signals. The sum signal represents the sum of a left channel digital audio signal and a right channel digital audio signal and the difference signal represents the difference between the left and right audio signals.
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