| CPC G01J 1/16 (2013.01) [G01J 1/4204 (2013.01); G01J 1/08 (2013.01); G01J 2001/083 (2013.01); G01J 2001/1668 (2013.01)] | 10 Claims |
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1. A light sensing method having a sensing order adjusting mechanism, comprising the following processes:
performing a first light sensing operation to sense a first reflected light signal within a first phase time included in each of a plurality of sensing cycles, wherein [the] a first light signal is reflected by a tested object to form the first reflected light signal;
counting a first coarse count value according to the first reflected light signal within the first phase time of each of the plurality of sensing cycles;
performing a fine counting operation on the first coarse count value to output a first fine count value within the first phase time of each of the plurality of sensing cycles;
performing a second light sensing operation to sense a second reflected light signal within a second phase time included in each of the plurality of sensing cycles, wherein a second light signal is reflected by the tested object to form the second reflected light signal;
counting a second coarse count value according to the second reflected light signal within the second phase time of each of the plurality of sensing cycles;
performing the fine counting operation on the second coarse count value to output a second fine count value within the second phase time of each of the plurality of sensing cycles;
turning off the light-emitting component during a third phase time included in each of the plurality of sensing cycles;
performing an ambient light sensing operation to sense a first ambient light signal within the third phase time of each of the plurality of sensing cycles;
counting a third coarse count value according to the first ambient light signal within the third phase time of each of the plurality of sensing cycles;
performing the fine counting operation on the third coarse count value to output a third fine count value within the third phase time of each of the plurality of sensing cycles; and
sequentially performing the plurality of sensing cycles, wherein an order of performing the first light sensing operation, the second light sensing operation and the ambient light sensing operation in a next one of the plurality of sensing cycles is different from that in a previous one of the plurality of sensing cycles.
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