Audio signal processor circuit
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United States of America Patent
Stats
-
Sep 26, 1995
Grant Date -
N/A
app pub date -
Mar 6, 1992
filing date -
May 12, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An audio processor circuit for treating a digitally encoded incoming signal, the circuit comprising circuitry (3, 12) for sampling the encoded signal at two or more sample frequencies, circuitry (8, 13, 38, 40, 46) for calculating from the sampled values a cross-correlation function relevant to a particular time frame, the value of said function serving to control operation of an adaptive algorithm, in which the sampled signal portions are truncated (2, 5) such that only the arithmetic sign bit of each signal portion contributes to the function calculation.
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Cited Art Landscape
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