Light detection element, distance measurement method, and distance measurement system

By limiting the number of times and the area of ​​light emission from the optical detection element, and adopting a frame interval and light emission limit mode in monitoring mode, the problems of power consumption and time consumption in the ranging system are solved, and more efficient ranging operation is achieved.

CN120813862APending Publication Date: 2025-10-17SONY SEMICON SOLUTIONS CORP
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202480017970.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-03-16
Filing Date
2024-02-07
Publication Date
2025-10-17

AI Technical Summary

Technical Problem

In ranging systems, existing technologies require region extraction from two-dimensional observation images, which leads to high power consumption or long distance image fusion processing time.

Method used

By limiting the number of times and the area of ​​light emission from the optical detection element, and by adopting a frame interval and light emission limit mode in monitoring mode, unnecessary light emission operations are reduced. Combined with the power-saving status management of the control circuit and the main control unit, distance measurement with shorter time and lower power consumption can be achieved.

Benefits of technology

It achieves ranging in shorter time and with lower power consumption, reduces unnecessary light emission operations, and improves response speed and power efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120813862A_ABST
    Figure CN120813862A_ABST
Patent Text Reader

Abstract

According to the present disclosure, provided are a light detection element, a distance measurement method, and a distance measurement system capable of performing measurement in a shorter time and with lower power consumption. According to the present disclosure, provided is a light detection element provided with: a light receiving unit having a plurality of light receiving elements that receive irradiation light reflected by an object; and a control circuit that transmits, on the basis of the reaction states of the plurality of light-receiving elements in the N frames, an information signal including information for controlling the light emission method in the N or later frames to an irradiation control unit that controls the light emission unit that emits irradiation light.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Distance measuring device and distance measuring method

    JP2021120630A