Method and apparatus for removing an image from a window of a di

Details Method and apparatus for removing an image from a window of a di Method and apparatus for removing an image from a window of a di

1988-10-18

1989-10-24

Moore, David K.

Communications: electrical

Land vehicle alarms or indicators

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

340701, 340703, G09G 106

Patent

active

048765333

ABSTRACT:
An image within a window on a scanned display device driven by a video generator is replaced with a preselected background color within one frame. The contents of the memory used to refresh the display can thus be changed in a background mode so that the user is unaware of the operation which he or she perceives as "instantaneous". Circuitry determines whether the scan is within the boundaries of the window and, if it is, generates a forcing signal which directs a look-up table within the video generator to a predetermined address which corresponds to a preselected background color. The invention can utilize existing circuitry in the video generator for generating synchronizing and blanking signals.

REFERENCES:
patent: 3911418 (1975-10-01), Takeda
patent: 4016544 (1977-04-01), Morita et al.
patent: 4352100 (1982-09-01), O'Connell
patent: 4467322 (1984-08-01), Bell et al.
patent: 4481594 (1984-11-01), Staggs et al.
patent: 4591842 (1986-05-01), Clarke, Jr. et al.
patent: 4599610 (1986-07-01), Lacy
patent: 4628305 (1986-12-01), Ikeda
patent: 4673929 (1987-06-01), Nelson et al.
patent: 4710761 (1987-12-01), Kapur et al.

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