Duplex modem for processing data needed for cancelling far-end e

Details Duplex modem for processing data needed for cancelling far-end e Duplex modem for processing data needed for cancelling far-end e

1992-08-07

1995-07-18

Hsu, Alpus

Multiplex communications

Wide area network

Packet switching

375 8, 375222, 379410, H04B 323

Patent

active

054348498

ABSTRACT:
A duplex modem for processing data needed for cancelling far-end echo includes at least one high-speed processor of the data pump type performing filtering operations and a microcontroller. The data, corresponding to transmitted data and necessary for cancelling far-end echoes, are stored in a memory associated with and controlled by the microcontroller.

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Electronic Design, vol. 37, No. 8 Apr. 1989, Hasbrouck Heights, N.J., pp. 137-142, `DSP Quashes Echoes in V. 32 Modems`.
Patent Abstracts of Japan, vol. 13, No. 38 (E-709) (3386) 27 Jan. 1989.

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