Title:
DISTANCE MEASUREMENT DEVICE AND LIGHT DETECTION ELEMENT
Document Type and Number:
WIPO Patent Application WO/2023/079830
Kind Code:
A1
Abstract:
The present invention provides a distance measurement device that uses a time of flight system and has a higher frame rate. A light emission drive unit drives a light emission unit in synchronization with a drive clock signal. A drive clock generation unit generates the drive clock signal. A high-frequency clock generation unit generates a high-frequency clock signal that has a higher frequency than the drive clock signal. A sequence control unit transmits a prescribed control signal to the light emission drive unit in synchronization with the high-frequency clock signal within an alteration period that is from the beginning to the end of an alteration in the frequency of the drive clock signal.
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Inventors:
SHIMIZU KOSUKE (JP)
Application Number:
PCT/JP2022/033860
Publication Date:
May 11, 2023
Filing Date:
September 09, 2022
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
G01S7/484; G01S17/931
Domestic Patent References:
| WO2017208673A1 | 2017-12-07 | |||
| WO2017050633A1 | 2017-03-30 | |||
| WO2016190930A2 | 2016-12-01 |
Foreign References:
| JPH09229676A | 1997-09-05 |
Attorney, Agent or Firm:
MARUSHIMA, Toshikazu (JP)
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