| CPC G01S 7/4865 (2013.01) [G01S 7/4808 (2013.01); G01S 7/4863 (2013.01); G01S 17/10 (2013.01)] | 21 Claims |
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1. An electronic apparatus of determining a distance, comprising:
a light source that emits pulsed lights;
a receiver configured to receive lights including reflected pulse lights and output a signal indicating intensity of the reception lights; and
processing circuitry configured to:
estimate reception intensity of light based on the signal, wherein the reception intensity does not include reflected light reflected by an object;
determine a period of time during which intensity data of the reflected light is generated, based on the reception intensity and a reflectivity of the reflected light of the object that is a target of distance measurement;
determine a time-of-flight duration from when the pulsed lights are emitted from the light source until when the lights including the reflected light are received by the receiver, based on the reception intensity in the period of time; and
determine the distance from the electronic apparatus to the object based on the determined time-of-flight duration.
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