Bi-quad digital filter configured with a bit binary rate multiplier
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United States of America Patent
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Nov 25, 2008
Grant Date -
Aug 16, 2007
app pub date -
Mar 26, 2007
filing date -
Mar 28, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention is directed to a bi-quad filter circuit configured with sigma-delta devices that operate as binary rate multipliers (BRMs). Unlike conventional bi-quad filter circuits, the invention provides a bi-quad filter configured with a single-bit BRM. In another embodiment, the invention further provides a bi-quad filter configured with multiple-bit BRMs.
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