Echo canceller

Details Echo canceller Echo canceller

1985-07-25

1987-06-09

Rubinson, Gene Z.

Telephonic communications

Subscriber line or transmission line interface

Network interface device

379410, H04B 320

Patent

active

046726659

ABSTRACT:
An echo canceller includes means for reducing correlation in a receiving side input signal based on a linear prediction model by regarding the receiving side input signal as an output signal of the linear prediction model. This means for reducing correlation is provided in a form suitable for hardware implementation, and thus, a convergence rate for the receiving side input signal having strong correlation as a speech signal can be improved without substantially increasing the number of calculations or the amount of memory.

REFERENCES:
"An Adaptive Echo Canceller with Variable Step Gain Method", Yamamoto et al., The Transaction of the IECE of Japan, vol. E 65, No. 1, Jan. 1982, pp. 1-8.

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