Synchronizing signal separator network

Details Synchronizing signal separator network Synchronizing signal separator network

1982-11-26

1986-04-01

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

328139, H04N 508

Patent

active

045801665

ABSTRACT:
A synchronizing signal separator network for use in an information reproducing system including a time-axis error signal generator, comprising a non-linear impedance circuit to non-linearly modify the amplitude of a supplied composite video signal for suppressing the video signal component of the composite video signal, a differentiating circuit to differentiate the output signal from the non-linear impedance circuit and a slicing circuit to slice off those portions of the output signal from the differentiating circuit which are higher in magnitude than a predetermined level, the output signal from the slicing circuit being used to produce a signal to be compared with a predetermined reference time-axis error signal signal in the time-axis error signal generator.

REFERENCES:
patent: 3525805 (1970-08-01), Busby, Jr.
patent: 3569844 (1971-03-01), Lynn
patent: 4254435 (1981-03-01), Dayton et al.
patent: 4417268 (1983-11-01), LaSota
patent: 4456927 (1984-06-01), Marin

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