Superimposing system

Details Superimposing system Superimposing system

1989-11-16

1991-09-24

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 19, H04N 976

Patent

active

050518178

ABSTRACT:
A system for superimposing color characters on video reproduction signals. A character signal is modulated by a color subcarrier phase-locked to a burst signal of video reproduction signal, and the display position of each line is controlled by the pulse obtained on the basis of the horizontal synchronizing signal of the video reproduction signal. A desired color character can be superimposed on a video reproduction signal without drift of the character.

REFERENCES:
patent: 4561013 (1985-12-01), Fukui et al.
patent: 4639765 (1987-01-01), D'Hont

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