Power-responsive ghost cancelling system

Details Power-responsive ghost cancelling system Power-responsive ghost cancelling system

1983-03-07

1985-05-14

Martin, John C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358905, H04N 521

Patent

active

045176019

ABSTRACT:
A ghost cancelling system having a transversal filter including a weighting circuit and a memory, a power responsive circuit for detecting the time when a power switch is turned on, and an activating circuit connected between the power responsive circuit and the storage capacitor for charging the latter during a predetermined period when the power switch is turned on.

REFERENCES:
patent: 4127874 (1978-11-01), Iwasawa et al.
patent: 4344089 (1982-08-01), Utsunomiya et al.
patent: 4357631 (1982-11-01), Utsunomiya et al.

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