Automatic equalizer for a synchronous digital transmission signa

Details Automatic equalizer for a synchronous digital transmission signa Automatic equalizer for a synchronous digital transmission signa

1979-03-09

1981-01-06

Gensler, Paul L.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

375 12, H04B 308

Patent

active

042439566

ABSTRACT:
The present invention comes within the field of synchronous digital transmission. It provides an automatic variable equalization network (1) equipped with phase-locking means, in which a sign coincidence autocorrelator (30) correlates the polarities of two versions of the equalized signal delayed in relation to each other by .tau., an integer multiple of the unit time interval of the transmission. It is used advantageously for equalizing synchronous digital transmission channels in switched telephone or telegraph networks.

REFERENCES:
patent: 3368168 (1968-02-01), Lucky
patent: 3736414 (1973-05-01), McAuliffe
patent: 3736530 (1973-05-01), MacLean
Kirlin, Correlation and Fourier Analysis in Real Time, Inexpensively, Proc. of IEEE, vol. 64, No. 9, Sep. 1976, pp. 1440-1442.

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