LASER RECEIVING CIRCUIT, DISTANCE MEASUREMENT DEVICE, AND MOBILE PLATFORM

WIPO Patent Application WO/2020/107250

A1

A laser receiving circuit, a distance measurement device (100), and a mobile platform. The laser receiving circuit comprises a photoelectric conversion circuit and a separation circuit, wherein the photoelectric conversion circuit is used for receiving a light signal and converting the light signal into an electrical signal, and the light signal comprises a light pulse signal and an ambient light signal reflected by an object; the separation circuit is sued for separating the electrical signal into a high-frequency electrical signal and a low-frequency electrical signal, and the frequency of the high-frequency electrical signal is at least 10 times higher than that of the low-frequency electrical signal; an ambient light information acquisition circuit is used for acquiring the information of the ambient light signal according to the low-frequency electrical signal. The laser receiving circuit, the distance measurement device (100), and the mobile platform can acquire the information of the ambient light signal, thereby achieving a trigger threshold when dynamically adjusting different ambient light, and significantly increasing a measurement distance when the light is dark.

JPH10332816	RANGE-FINDING DEVICE
WO/2009/043685	METHOD AND DEVICE FOR DETERMINING A DISTANCE BY MEANS OF AN OPTOELECTRONIC IMAGE SENSOR

MA LIANGLIANG (CN)
HONG XIAOPING (CN)

PCT/CN2018/117835

June 04, 2020

November 28, 2018

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SZ DJI TECHNOLOGY CO LTD (CN)

G01S17/08

CN102541363A	2012-07-04
CN106375058A	2017-02-01
CN203422470U	2014-02-05
CN207502716U	2018-06-15
CN103367517A	2013-10-23
US20130003041A1	2013-01-03

P. C. & ASSOCIATES (CN)

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