System for automatic equalization

Details System for automatic equalization System for automatic equalization

1975-04-03

1976-09-07

Griffin, Robert L.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

325 65, 333 18, 333 28R, H04B 100

Patent

active

039796779

ABSTRACT:
Equalizing system arranged for pulse transmission, adaptive equalization being achieved without the use of an additional periodic adjusting pulse pattern. For this purpose in a control voltage generator the sub-bands and the associated additional sub-bands of an equalized pulse signal processed by the phase and amplitude control circuits are used after pulse regeneration directly as a local reference signal and an adjusting signal respectively. The sub-bands and additional sub-bands are applied to the cascade connection of a comparator and a mean-value device for generating the control voltage which controls the phase and amplitude control circuits in a feedback mode.

REFERENCES:
patent: 3283063 (1966-11-01), Kawashima et al.
patent: 3366895 (1968-01-01), Lucky
patent: 3845390 (1974-10-01), DeJager et al.
patent: 3868576 (1975-02-01), Bagdasarjanz et al.
patent: 3868603 (1975-02-01), Guidoux

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