THE METHOD FOR PREVENTING ABNORMAL OPERATION OF OPTICAL MOUSE WHEN OPTICAL MOUSE PASSES THE BOUNDARY OF DIFFERENT SURFACE

摘要

The present invention relates to an optical mouse, the difference in intensity over time to detect the interface visable surface and the image sensor to obtain a plurality of frames in accordance with the change of the exposure time when the exposure time is increased or decreased continuously, receiving the output of the image sensor and converted by the A / D converter into a digital signal, the output of the A / D converter receive and to prevent a malfunction if the image data processor of the plurality of frames from the correlation value calculating a high movement, controls the timing with the outside and receiving the output of the image data processor, there is a plurality of correlation If the motion value to the output, and there is a plurality of correlated images with the system controller for outputting a motion value of the optical mouse received from the data processor, for receiving and multiplexing the output of the system controller includes a multiplexer for outputting the final motion value which is characterized in that. ; with the optical mouse according to the present invention, in the optical mouse detects when the difference in intensity over a distinct interface, an optical mouse to prevent the erroneous motion values output can be prevented from malfunctioning.