Patent ID: 11899049
Assignee: REALTEK SEMICONDUCTOR CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 6:
7. A comparison circuit operation method having adaptive comparison mechanism, comprising:
enabling a comparator by an enabling signal at an enabling state in a comparison stage so as to compare a first voltage and a second voltage to generate a comparison result;
setting a stage indication signal to be a comparison stage unfinished state in the comparison stage before the comparison result is generated, and setting the stage indication signal to be a comparison stage finished state in the comparison stage after the comparison result is generated by a comparison determining circuit;
beginning accumulating an accumulated time when the enabling signal is at the enabling state and stopping accumulating the accumulated time when the stage indication signal is at the comparison stage finished state to generate a comparison time by a time accumulating circuit; and
performing statistics on the comparison time in the comparison stage to generate a predetermined threshold time, and further setting a predetermined comparison result as the comparison result under the condition that the comparison result is not generated and the accumulated time exceeds the predetermined threshold time in the comparison stage by a determining circuit.