Patent ID: 11906669
Assignee: NUVOTON TECHNOLOGY CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 16:
17. A multipath detection method for detecting multipath using a light emitter which emits light according to an emission pulse indicating emission and a solid-state imaging element which performs exposure according to an exposure pulse indicating exposure, the multipath detection method comprising:
generating a timing signal indicating a plurality of pairs of the emission pulse and the exposure pulse that have a time difference, the time difference being different in each of the plurality of pairs;
obtaining a sequence of received light signals from the solid-state imaging element by the emission and the exposure that correspond to each of the plurality of pairs;
comparing the sequence of received light signals that has been obtained and reference data created in advance as a model of a sequence of received light signals in a multipath-free environment; and
determining a presence or absence of multipath according to a difference in a comparison result.