Method for automatically equalizing the delay characteristics of

Details Method for automatically equalizing the delay characteristics of Method for automatically equalizing the delay characteristics of

1977-06-21

1979-02-20

Gensler, Paul L.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

333 28R, H03H 716

Patent

active

041409833

ABSTRACT:
In a delay equalizer having a plurality of quadratic all pass networks for equalizing the delay characteristics of a circuit, the automatic adjustment of the value of Q of each quadratic all pass network when calculated through the asymptotic formula ##EQU1## CAN PROVIDE PERFECT DELAY EQUALIZATION, WHERE Q.sub.i.sup.k is the value of Q of the i'th quadratic all pass network, and .alpha..sub.i is the step size parameter of i'th quadratic all pass network. Before applying said formula, the delay of the circuit to be equalized at the center frequency of each quadratic all pass network is measured, and said formula is calculated according to the result of the measurement.

REFERENCES:
patent: 3673521 (1972-06-01), Yuguchi
patent: 3748602 (1973-07-01), Delfrate et al.

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