System for Signal Sample Rate Conversion
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United States of America Patent
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Issued Date -
Apr 22, 2010
app pub date -
Oct 22, 2008
filing date -
Oct 22, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An apparatus and method for converting a source signal at a first rate to a re-sampled signal at a second rate using an array of processors. A decoder decomposes the source signal into left and right source values and sends an aperture signal to a coefficient control unit upon decomposition completion. A transfer unit controllably receives and passes the left and right source values on to a re-sampler. The coefficient control unit calculates a polyphase offset based on the aperture signal and a clock signal. A coefficient server selectively passes coefficients to the re-sampler based on the polyphase offset. And the re-sampler generates the re-sampled signal based on the left and right source values and the coefficients.
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