Integrated echo canceling multiplexor

Details Integrated echo canceling multiplexor Integrated echo canceling multiplexor

1990-06-08

1992-09-15

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 851, H04J 300

Patent

active

051484269

ABSTRACT:
An integrated echo canceling multiplexor is provided which comprises an echo canceler for receiving DS1 signals for canceling echo in the DS1 signal and producing an echo-free digital logic signal. A first performance monitor is coupled to the echo canceler for receiving the echo-free digital logic signal and determining the quality of the signal. A multiplexor-demultiplexor is further coupled to the echo canceler for receiving the echo-free digital logic signal and producing a DS3 signal. Additionally, a second performance monitor is coupled to the multiplexor-demultiplexor and receives the DS3 signal and determines the quality of the signal.

REFERENCES:
patent: 4644108 (1987-02-01), Crouse et al.
patent: 4924492 (1990-05-01), Gitlin et al.
patent: 4991167 (1991-02-01), Petri et al.
patent: 5029167 (1991-07-01), Arnon et al.
patent: 5043976 (1991-08-01), Abiven et al.

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