Echo cancellation with dynamic latency adjustment

Multiplex communications – Duplex – Transmit/receive interaction control

Reexamination Certificate

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Details

C379S406010, C455S570000

Reexamination Certificate

active

06990084

ABSTRACT:
An echo cancellation system measures an average delivery rate of a reference data signal and an average capture rate of an input data signal. From the measured data rates, the system converts the reference data signal to a domain of the input data signal. An echo canceler cancels an echo that may be present in the input data signal based upon the converted reference data signal.

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Wang, et al., “Joint Impulse Response Shortening For Discrete Multitone Systems,” Communication Theory, pp. 2508-2512 Global Telecommunications Conference—Globecom 99, May 1999.

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