Special video effect system

Details Special video effect system Special video effect system

1985-05-07

1988-09-27

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

358 22, 358183, H04N 704

Patent

active

047745070

ABSTRACT:
A circuit for processing television signals to produce special effects includes a special effects circuit and a key signal generating circuit. Instead of generating the key signal separately and tailoring it for the desired special effects by using complicated circuits, the key signal is superimposed onto a video signal to produce a composite video signal which signal is processed to conform to the desired special effects. After the processing, the key signal is separated from the composite video signal to be used as it is intended. Thus, complicated and dedicated circuits solely for use for processing the key signal are eliminated.

REFERENCES:
patent: 4178613 (1979-12-01), Takahashi et al.
patent: 4196449 (1980-04-01), Tame et al.
patent: 4301475 (1981-11-01), McCoy
patent: 4581640 (1986-04-01), Cole

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