Fractional delay digital filter
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United States of America Patent
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Oct 28, 2003
Grant Date -
N/A
app pub date -
Dec 6, 1999
filing date -
Mar 28, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device is presented for processing digital signals conveyed between a common port and many particular ports. The device includes a linear processing module. The module includes filters, which simultaneously apply a phase-shift and a chosen amplitude emphasis at each of the particular ports. The phase-shift is specific to each particular port, and the amplitude emphasis is substantially the same for all the particular ports. At the common port, the device also includes a common inversion filter, which performs inverse amplitude emphasis to the chosen amplitude emphasis.
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