Display apparatus

Details Display apparatus Display apparatus

1991-05-06

1993-08-31

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358148, 358158, H04N 310

Patent

active

052413845

ABSTRACT:
A display apparatus includes a cathode ray tube. A deflection yoke is attached to the cathode ray tube. A deflection device serves to generate a sawtooth current in response to an input sync signal, and to feed the sawtooth current to the deflection yoke. A phase difference detector serves to detect a difference between a phase of the sawtooth current generated by the deflection means and a phase of a color pattern signal which represents a start and an end of luminance information in an input luminance signal. A correcting device serves to correct an image-indicated position in response to the phase difference detected by the phase difference detector.

REFERENCES:
patent: 4159484 (1979-06-01), Strathman
patent: 4467359 (1984-08-01), Hosoya
patent: 4591910 (1986-05-01), Lai et al.
patent: 4593308 (1986-06-01), Kemplin
patent: 4739403 (1988-04-01), Mark
patent: 4991023 (1991-02-01), Nichols
patent: 5047855 (1991-09-01), Correa

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