Image display controller having a common memory for storage of i

Details Image display controller having a common memory for storage of i Image display controller having a common memory for storage of i

1994-09-19

1995-08-08

Bayerl, Raymond J.

395157, 395164, G06F 314

Patent

active

054406803

ABSTRACT:
An image display controller includes a first memory for storing data of an image to be displayed in a first window; a second memory for storing data of an image to be displayed in a second window, where no data is read from the second memory for image display during the data reading operation in the first memory; and a third memory for storing data of an overlay image on which the image of the first or second memory is superimposed, and also storing window data to set the range of the windows. The controller is arranged to prevent any disordered display of images and is capable of displaying an increased number of windows.

REFERENCES:
patent: 4559533 (1985-12-01), Bass et al.
patent: 4653020 (1987-03-01), Cheselka et al.
patent: 4700320 (1987-10-01), Kapur
patent: 4933877 (1990-06-01), Hasebe
patent: 5001469 (1991-03-01), Pappas et al.
patent: 5146592 (1992-09-01), Pfeiffer et al.
patent: 5185858 (1993-02-01), Emery et al.

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