Asynchronous sampling rate converter for audio applications
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United States of America Patent
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May 7, 2013
Grant Date -
Mar 3, 2011
app pub date -
Sep 3, 2009
filing date -
Sep 3, 2009
priority date (Note) -
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Abstract
In recent years, it has become commonplace for portable devices to generate analog audio signals from numerous sources, meaning that the codecs employed in these portable devices need to be able to utilize various digital bit streams at different sampling rates. To date, however, the circuitry for asynchronous sampling rate conversions for multiple bit streams has been complex, rigid, and power hungry. Here, a codec is provided which uses miniDSP cores to perform asynchronous sampling rate conversion efficiently and with reduced power consumption compared to other conventional codecs.
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