Method for detecting data variation
A data change and data technology, applied in the field of data change detection, can solve problems such as multi-resources, insufficient refresh speed, occupation of computers, etc., achieving the effect of easy implementation, reducing the occupation of precious resources and simple methods
Active Publication Date: 2008-04-09
GUANGDONG VTRON TECH CO LTD
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Abstract
The invention relates to a data processing method, specifically to a method for detecting data change, which comprises following steps: (1) selecting a region having the same size as a display buffer block to be detected as a comparison buffer block, and dividing both the display buffer block and the comparison buffer block into a large grid pattern consisting of K (M multiplied by N) grid patterns; and (2) scanning the grids of the display buffer block and the comparison buffer block in different turns in such a manner that K scanning processes are executed in each turn and 1/K grid content of two corresponding buffer blocks are scanned respectively in each scanning process, which includes determining whether the contents of the corresponding grids on the two buffer blocks are identical by comparing the grids one by one, wherein the content that has been scanned in the turn is not scan repeatedly, and K, M and N are integers. The method is simple and convenient and has the prominent advantages of high efficiency and less resource occupation.
Application Domain
Cathode-ray tube indicatorsDigital output to display device
Technology Topic
Data processingComputer science +1
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