Asynchronous sample rate converter
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United States of America Patent
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Mar 27, 2001
Grant Date -
N/A
app pub date -
Jan 20, 1998
filing date -
Jan 20, 1998
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Abstract
An asynchronous sample rate converter for converting a first sample rate in a signal to a second sample rate in the same signal is presented. The signal is first provided as input to an interpolator which upsamples the signal to form a signal having sample rate UF.sub.s1 where the upsampling factor U is a variable that is directly related to the ratio F.sub.s2 /F.sub.s1. The resampler then linearly interpolates the upsampled signal to form a signal having sample rate DF.sub.s2. Finally, the resampled signal is downsampled to form a signal having sample rate F.sub.s2.
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