Flicker free scan conversion system

Details Flicker free scan conversion system Flicker free scan conversion system

1976-07-26

1978-10-17

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358112, 340 1R, 343 5SC, H04N 718

Patent

active

041212509

ABSTRACT:
A scan conversion system having a synchronization generator that provides typical TV-style timing signals. A multivibrator connected to the generator has a two-state logic output of equal time duration to the timing signals of the generator. A binary logic circuit is activated by the multivibrator to trigger the scan converter wherein alternate read-write pulses are provided by the two-state logic of the multivibrator so as to eliminate picture flicker exhibited by the conventional system on the TV display.

REFERENCES:
patent: 3218637 (1965-11-01), Balding
patent: 3810174 (1974-05-01), Heard
patent: 3864660 (1975-02-01), Ranalli et al.
patent: 3925606 (1975-12-01), Wood et al.

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