US 12,231,776 B2
Distance measuring device
Hiroaki Ono, Kanagawa (JP)
Assigned to SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
Appl. No. 17/310,804
Filed by SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
PCT Filed Feb. 10, 2020, PCT No. PCT/JP2020/005036
§ 371(c)(1), (2) Date Aug. 25, 2021,
PCT Pub. No. WO2020/184028, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. 2019-044283 (JP), filed on Mar. 11, 2019.
Prior Publication US 2022/0046158 A1, Feb. 10, 2022
Int. Cl. H04N 23/72 (2023.01); G01S 17/46 (2006.01); G06T 7/70 (2017.01)
CPC H04N 23/72 (2023.01) [G01S 17/46 (2013.01); G06T 7/70 (2017.01); G06T 2207/10028 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A distance measuring device, comprising:
a light emitting element configured to emit light;
a light receiving element configured to:
receive the light for each phase of a plurality of phases based on the emission of the light; and
output a light reception signal for the each phase based on the reception of the light for the each phase; and
circuitry configured to:
calculate distance information based on the light reception signal for the each phase;
determine that the calculated distance information is one of equal to or greater than a threshold value;
increase an exposure time of the light receiving element based on the determination that the calculated distance information is one of equal to or greater than the threshold value;
control a level of the light reception signal for the each phase based on the increased exposure time;
generate an image signal based on the light reception signal for the each phase;
generate an adjustment value based on the controlled level of the light reception signal for the each phase; and
adjust a level of the generated image signal based on the adjustment value.