Title:
LIGHT DETECTING DEVICE, AND RANGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/071173
Kind Code:
A1
Abstract:
[Problem] To enable an improvement in ranging accuracy using a small number of light emissions and light receptions, irrespective of the distance to an object. [Solution] This light detecting device comprises: a light receiving unit for receiving, within a first time range, a first reflected light pulse signal resulting from a first light pulse signal emitted in a first time interval being reflected by an object, and receiving, within a second time range different from the first time range, a second reflected light pulse signal resulting from a second light pulse signal emitted in a second time interval different from the first time interval being reflected by the object; and a histogram generator for generating a first histogram in which reception frequencies of the first reflected light pulse signal received within the first time range are classified for each predetermined fixed unit period, and generating a second histogram in which the reception frequencies of the second reflected light pulse signals received within the second time range are classified for each unit period.
Inventors:
SEKIYA AKITO (JP)
HAMAMATSU MASAMUNE (JP)
ENDO NORIAKI (JP)
SAITO YOSHIYUKI (JP)
HAMAMATSU MASAMUNE (JP)
ENDO NORIAKI (JP)
SAITO YOSHIYUKI (JP)
Application Number:
PCT/JP2023/035078
Publication Date:
April 04, 2024
Filing Date:
September 27, 2023
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
G01S7/4863; G01C3/06; G01S17/894
Domestic Patent References:
| WO2020179857A1 | 2020-09-10 | |||
| WO1999047944A1 | 1999-09-23 |
Foreign References:
| JP2021092543A | 2021-06-17 | |||
| US4377811A | 1983-03-22 |
Attorney, Agent or Firm:
MIYAJIMA Manabu (JP)
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