Modem receiver preemphasis

Details Modem receiver preemphasis Modem receiver preemphasis

H - Electricity

04

B

H04B 1/62 (2006.01) H04B 3/23 (2006.01) H04M 11/06 (2006.01)

Patent

CA 2161722

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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