US Patent RE39080 Rate loop processor for perceptual encoder/decoder
Patent RE39080 was granted and assigned to Lucent Technologies Inc. on April, 2006 by the United States Patent and Trademark Office.
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Patent abstract
A method and apparatus for quantizing audio signals is disclosed which advantageously produces a quantized audio signal which can be encoded within an acceptable range. Advantageously, the quantizer uses a scale factor which is interpolated between a threshold based on the calculated threshold of hearing at a given frequency and the absolute threshold of hearing at the same frequency.
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Patent Inventor Names
James David Johnston0
Date of Patent
April 25, 2006
0Patent Application Number
102182320
Date Filed
August 13, 2002
0Patent Primary Examiner
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US Patent RE39080 Rate loop processor for perceptual encoder/decoder
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