On screen color display

Details On screen color display On screen color display

1981-01-05

1982-07-06

Murray, Richard

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 81, H04N 9535

Patent

active

043386245

ABSTRACT:
A television receiver includes an interface circuit enabling the production of on-screen displays of alpha-numeric type information in a selected color. The interface circuit is responsive to a blanking signal for reducing the red, green and blue video signals developed in response to a received NTSC color television signal below the blanking level of the television receiver. A digital signal representing selected alpha-numeric type information is coupled from a character generator to the interface circuit for increasing the potential at one or more of the electron guns of the receiver for producing a corresponding on-screen display in a selected color.

REFERENCES:
patent: 3812285 (1974-05-01), Miyata et al.
patent: 4081797 (1978-03-01), Olson
patent: 4135182 (1979-01-01), Bell et al.
patent: 4218698 (1980-08-01), Bart et al.
patent: 4229760 (1981-10-01), Avery

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