Equalizer comprising first and second equalizing means and train

Details Equalizer comprising first and second equalizing means and train Equalizer comprising first and second equalizing means and train

1975-10-17

1977-02-01

Dildine, Jr., R. Stephen

Registers

Transfer mechanism

Traveling pawl

325 41, 333 18, H03K 5153, G06G 7625

Patent

active

040063526

ABSTRACT:
An equalizer comprises a tapped delay line of a transversal filter and first equalizing means responsive to a short pseudo-noise train supplied thereto for adjusting tap gains so as to make the transversal filter output signals simulate a pseudo-noise train generated at the receiver with the pulse pattern of the supplied pseudo-noise train. Larger ones, in absolute values, of the adjusted gains are placed at the center of the delay line. Responsive to a subsequently supplied long pseudo-noise train, second equalizing means self-adaptively adjusts all tap gains. The delay line preferably comprises delay units, each for a half of a common clock interval of the supplied pseudo-noise trains and data signals.

REFERENCES:
patent: 3659229 (1972-04-01), Milton

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