Sample rate conversion method and apparatus
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United States of America Patent
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Oct 8, 2002
Grant Date -
Nov 1, 2001
app pub date -
Mar 27, 2001
filing date -
Mar 27, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An arbitrary sample rate conversion apparatus is described. This apparatus includes a buffer for forming blocks of input samples having a first sample rate. For each block of input samples a subfilter is selected from a polyphase filter. Each block of input samples is convolved with the corresponding selected subfilter for producing blocks of output samples having a second sample rate.
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