Patent ID: 11960004
Assignee: KABUSHIKI KAISHA TOSHIBA
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. A distance measuring device comprising:
a light emitter configured to emit an optical signal,
a light receiver configured to receive reflected light of the optical signal emitted by the light emitter, the light receiver including a plurality of sensors and a plurality of pixels, the sensors arranged two-dimensionally on a substrate, and each of the plurality of pixels including at least one of the sensors; and
a controller configured to:
set an overall light-receiving region in which the sensors are selectively turned on in the light receiver;
set a first light-receiving region of the overall light-receiving region and a second light-receiving region of the overall light-receiving region different from the first light-receiving region, based on coordinate information input from outside the light receiver, wherein the first light-receiving region includes first pixels included in the plurality of pixels, the second light-receiving region includes second pixels included in the plurality of pixels, and the second light-receiving region is arranged to be further away from an optical axis of the optical signal emitted by the light emitter than the first light-receiving region;
turn on one or more of the first pixels and one or more of the second pixels during a first period; and
turn off a second pixel of the one or more of the second pixels during a second period after the first period, in a state in which the one or more of the first pixels are on, wherein a density in the second light-receiving region of the one or more of the second pixels in an on-state is less than a density in the first light-receiving region of the one or more of the first pixels in an on-state.