Modem receiver pre-emphasis
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United States of America Patent
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-
Aug 19, 1997
Grant Date -
N/A
app pub date -
Dec 13, 1994
filing date -
Dec 13, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A echo-canceling modem uses pre-emphasis in both the transmitter and receiver sections. In particular, the receiver section of the modem processes a received signal with a pre-emphasis filter before performing echo cancellation on the received signal. The receiver pre-emphasis filter is identical to the transmitter pre-emphasis filter, i.e., the pre-emphasis added in the receiver is the same as the pre-emphasis added in the transmitter.
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