Time base error signal generating apparatus

Details Time base error signal generating apparatus Time base error signal generating apparatus

1991-04-18

1992-11-17

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358320, 358337, 360 361, H04N 989

Patent

active

051648385

ABSTRACT:
A time base error signal generating apparatus which outputs a phase difference signal representing a phase difference between a horizontal sync signal and a reference signal as a time base error signal. In accordance with the phase status of a vertical sync signal with respect to the reference signal, supply of the horizontal sync signal or reference signal to a phase comparator is inhibited. Therefore, a single, phase comparator can detect the phase difference while avoiding problems such as a phase offset.

REFERENCES:
patent: 4313129 (1982-01-01), Fukui
patent: 4554582 (1985-11-01), Wine
patent: 4647984 (1987-03-01), Suzuki et al.

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