US 12,422,530 B2
Ranging device and ranging method
Nobutaka Nakamae, Osaka (JP); Yuki Minami, Osaka (JP); Wataru Matsumoto, Osaka (JP); Mitsuhiko Otani, Hyogo (JP); Junichi Matsuo, Osaka (JP); Takuya Asano, Hyogo (JP); Haruka Takano, Osaka (JP); Shigeru Saitou, Kyoto (JP); Shinzo Koyama, Osaka (JP); and Toshiya Fujii, Shiga (JP)
Assigned to MIRAXIA EDGE TECHNOLOGY CORPORATION, Kyoto (JP)
Appl. No. 17/772,026
Filed by Miraxia Edge Technology Corporation, Kyoto (JP)
PCT Filed Oct. 30, 2020, PCT No. PCT/JP2020/040870
§ 371(c)(1), (2) Date Apr. 26, 2022,
PCT Pub. No. WO2021/085612, PCT Pub. Date May 6, 2021.
Claims priority of application No. 2019-200085 (JP), filed on Nov. 1, 2019; and application No. 2019-209169 (JP), filed on Nov. 19, 2019.
Prior Publication US 2022/0365182 A1, Nov. 17, 2022
Int. Cl. G01S 7/4865 (2020.01); G01S 17/10 (2020.01); G01S 17/894 (2020.01)
CPC G01S 7/4865 (2013.01) [G01S 17/10 (2013.01); G01S 17/894 (2020.01)] 30 Claims
OG exemplary drawing
 
1. A ranging device comprising:
a pulse generator that generates an emission pulse instructing emission timing and an exposure pulse instructing exposure timing for receiving reflected light;
a controller that controls the pulse generator according to n types of packet generation codes indicating whether or not to expose or emit light in each of unit segments corresponding to distance segments into which a ranging range is divided, n being an integer greater than or equal to 4;
a light source that emits light according to the emission pulse;
a solid-state image capturer that captures an image according to the exposure pulse; and
a distance calculator that calculates a distance based on n types of signal values obtained from the solid-state image capturer, the n types of signal values being per unit segment among the unit segments.