US Patent 12025705 Distance measuring device, distance measuring method, and speed measuring device

A distance measuring device is a distance measuring device that performs processing on a time-series luminance signal generated on the basis of a sensor output corresponding to reflected light of laser light. The distance measuring device includes a storage circuit and a determination circuit. The storage circuit stores a first time-series luminance signal based on reflected light from a first measurement target of laser light and a second time-series luminance signal based on reflected light from a second measurement target of laser light. The determination circuit determines, on the basis of correlation between the first time-series luminance signal and the second time-series luminance signal, whether the first measurement target and the second measurement target are the same measurement target.