DISTANCE MEASURING APPARATUS, ELECTRONIC DEVICE, METHOD FOR MEASURING DISTANCE, AND RECORDING MEDIUM

摘要

A distance measuring apparatus measuring a distance to an object is disclosed. The apparatus includes a light projector projecting an irradiating light onto the object; a first receiver receiving and converting a reflected light into a received light signal; a second receiver adjacent to the light projecting unit, the second receiver receiving and converting the irradiating light into a reference signal, the second receiver being different from the first receiver; and a distance measuring unit measuring the distance based on a time. The distance measuring unit calculates an integrated waveform based on a reference waveform of the reference signal and a waveform of the received light signal, determines, based on the integrated waveform, a time from projection of the irradiating light onto the object by the light projecting unit until reception of the reflected light by the first receiver, and calculates the distance based on the determined time.

主权项

1. A distance measuring apparatus measuring a distance to a distance measurement object based on a time from projection of an irradiating light onto the distance measurement object until reception of a reflected light from the distance measurement object, the distance measuring apparatus comprising:
a light projecting unit configured to project the irradiating light onto the distance measurement object; a first light receiving unit configured to receive the reflected light and convert the reflected light into a received light signal based on the reflected light; a second light receiving unit disposed adjacent to the light projecting unit, the second light receiving unit being configured to receive the irradiating light and convert the irradiating light into a reference signal based on the irradiating light, the second light receiving unit being different from the first light receiving unit; and a distance measuring unit configured to measure the distance to the distance measurement object based on a time from projection of the irradiating light onto the distance measurement object by the light projecting unit until reception of the reflected light by the first light receiving unit, wherein the distance measuring unit calculates an integrated waveform based on a reference waveform of the reference signal and a waveform of the received light signal, determines, based on the integrated waveform, the time from the projection of the irradiating light onto the distance measurement object by the light projecting unit until the reception of the reflected light by the first light receiving unit, and calculates the distance to the distance measurement object based on the determined time.