DISTANCE MEASURING DEVICE AND DISTANCE MEASURING METHOD

WIPO Patent Application WO/2024/085069

A1

A distance measuring device (100) comprises: a light source unit (10) for emitting emitted light; a light receiving unit (20) including a pixel for generating a pixel signal on the basis of incident light; a drive control unit (30) for controlling the drive of the light source unit (10) and the light receiving unit (20); and a signal processing unit (40) for deriving a distance to a target object on the basis of the pixel signal. The drive control unit (30) drives the light source unit (10) and the pixel using a CW-ToF sequence and a pulse ToF sequence for measuring the distance using mutually different types of indirect ToF schemes, and switches between the CW-ToF sequence and the pulse ToF sequence between frames. The signal processing unit (40) derives the distance to the target object on the basis of a first pixel signal generated by the pixel using the CW-ToF sequence, and a second pixel signal generated by the pixel using the pulse ToF sequence. A distance measurement range of the pulse ToF sequence is greater than the distance measurement range of the CW-ToF sequence.

JP7459074	imaging sensor
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WO/2021/198269	ILLUMINATION DEVICE FOR A DISTANCE MEASUREMENT CAMERA SYSTEM, A CORRESPONDING ILLUMINATION METHOD AND A TOF CAMERA SYSTEM

ICHIRYU MIWA
YAMADA TORU
SHIMIZU YASUYUKI
NISHIMOTO MASAHIKO

PCT/JP2023/037092

April 25, 2024

October 12, 2023

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NUVOTON TECH CORPORATION JAPAN (JP)

G01S17/894

WO2017022152A1	2017-02-09
WO2017085916A1	2017-05-26
WO2018025749A1	2018-02-08

JP2018077143A	2018-05-17
US20210088636A1	2021-03-25

NII, Hiromori et al. (JP)

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