Method and apparatus for controlling image display

Details Method and apparatus for controlling image display Method and apparatus for controlling image display

1995-12-22

1997-12-16

Powell, Mark R.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

395511, G09G 500

Patent

active

056990863

ABSTRACT:
A system for controlling an image display which enables the efficiency of transfer of image data to be greatly improved when a control processor and display control unit access an image memory at alternate timings, the control processor updates the image data, and the display control unit displays the image data on a display, wherein the control processor is first made to wait so that the relative deviation in phase between the operational cycle (T1 to T4) of the control processor and the alternate access cycle of the control processor and display control unit specified by the display control unit is initially set to a certain relative relationship so that the two accesses do not conflict, then the image data is transferred without waiting.

REFERENCES:
patent: 5530458 (1996-06-01), Wakasu

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