Video signal correction device

Details Video signal correction device Video signal correction device

1989-06-09

1990-11-20

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 36, H04N 964, H04N 5213

Patent

active

049722638

ABSTRACT:
A device for correcting line tilt which shows as a parasitic tilt of the plateaus of a video signal, the device includes an adder circuit (37) for adding a correction signal to a video signal to be corrected, the video signal to be corrected (36) being conveyed with its total passband to a first input (47) of the adder and the corrected signal being available at an output (35) of the adder. A second input (48) of the adder is coupled to an output of a frequency filter (38) to whose input (49) the video signal to be corrected is applied.

REFERENCES:
patent: 4352126 (1982-09-01), Poncin
patent: 4376952 (1983-03-01), Troiano
patent: 4777648 (1988-10-01), Gardner

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