Picture display device comprising a field deflection circuit and

Details Picture display device comprising a field deflection circuit and Picture display device comprising a field deflection circuit and

1979-01-26

1980-10-14

Murray, Richard

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 324

Patent

active

042284643

ABSTRACT:
A picture display device is disclosed having a field deflection circuit and a field blanking circuit. A pulse generator is also included in said device and comprises a gate circuit with OR-function to which is supplied a signal originating from the deflection circuit as well as a signal originating from the field deflection coil. This gate circuit produces a signal which causes the electron beam(s) in the picture display tube to be blanked.

REFERENCES:
patent: 2950346 (1960-08-01), Freedman et al.
patent: 3763315 (1973-10-01), Norman
Dunn et al., "Automatic Beam Blanker for Oscilloscopes", Electronics, pp. 94, 95, Sep. 1950.

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