Self-correcting equalization system

Details Self-correcting equalization system Self-correcting equalization system

1977-10-31

1980-04-01

Gensler, Paul L.

Wave transmission lines and networks

Pilot current-controlled systems

333 18, 333167, 375 14, 364572, H03H 716, H04B 304

Patent

active

041964055

ABSTRACT:
The invention consists in an equalization system with two sections, one at each end of a transmission channel. The section at the transmission end adds control signals to information signals to be transmitted over the line. The section at the reception end generates control signals identical to those added at the transmission end and in phase with the control signals received over the transmission channel, which are separated from the received information signals by means of a first transversal filter with controllable weighting coefficients, the reciprocal transfer function of the transmission channel being synthesized from the locally generated and the received control signals by means of a second transversal filter with controllable weighting coefficients, equalization being achieved by means of a third transversal filter with the same design and same weighting coefficients as the second transversal filter. The invention is applicable to the transmission of data over telephone lines.

REFERENCES:
patent: 3609597 (1971-09-01), Moye
patent: 3648171 (1972-03-01), Hirsch
patent: 3868603 (1975-02-01), Guidoux

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