Character and other graphical generating systems for video displ

Details Character and other graphical generating systems for video displ Character and other graphical generating systems for video displ

1990-02-27

1991-03-26

Brier, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

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

340730, 358183, G09G 522

Patent

active

050033034

ABSTRACT:
A character generating system is disclosed having a source of batches of video keying signals representing different characters combined with further keying signals representing a background for the respective character. The video keying signals are confined to one value range and said further keying signals are confined to a different value range. The system effects spatial transformation of the combined signals and responds to the values of the spatially transformed combined signals to derive shape signals corresponding to the further keying signals and to derive shade signals corresponding to the video keying signals. In response to the shape and shade signals different video signals are provided respectively representing the character and the background both spatially transformed as the combined signals were spatially transformed.

REFERENCES:
patent: 4698666 (1987-10-01), Lake, Jr. et al.
patent: 4774507 (1988-09-01), Kashigi et al.

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