Distance measuring apparatus and control method thereof

A distance measuring apparatus for measuring distance to a target, comprising:

• a light emitter for emitting a measuring light;
• a light receiving system for receiving a reflected light reflected from the target and outputting a sensing signal;
• a comparator comprising a reference signal input terminal for receiving a reference signal, a sensing signal input terminal for receiving the sensing signal, and a comparison result signal output terminal for outputting a comparison result signal according to comparison results between the reference signal and the sensing signal, wherein the comparison result signal comprises a triggering signal and a non-triggering signal;
• and
• a process and control module for providing the reference signal to the reference signal input terminal of the comparator and adjusting the reference signal according to the comparison signal.