Wave transmission lines and networks – Automatically controlled systems – With control of equalizer and/or delay network
Patent
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.
Kuroda Hidemi
Tamori Michitoshi
Gensler Paul L.
Kokusai Denshin Denwa Co. Ltd.
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