Title:
LIGHT RECEPTION DEVICE, INFORMATION PROCESSING DEVICE, RANGING DEVICE, AND INFORMATION PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/004639
Kind Code:
A1
Abstract:
A light reception device according to the present technology comprises: a light-receiving unit for receiving reflected light produced by reflection, by a subject, of light emitted by a light-emitting unit due to light emission commands issued on the basis of a prescribed processing cycle; and a calculation unit for calculating information relating to the distance to the subject according to the difference between the light emission timing of the light-emitting unit and the light reception timing of the light-receiving unit. The light emission commands are timed so as to be delayed, every medium period which includes a plurality of small periods which include one light emission event, by a shift period with respect to a reference timing in each of the prescribed processing cycles. The ratio of the shift period relative to a small period is modified every large period which includes a plurality of the medium periods.
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Inventors:
MIYAMOTO TAKASHI (JP)
TSUKUDA YASUNORI (JP)
TSUKUDA YASUNORI (JP)
Application Number:
PCT/JP2023/021932
Publication Date:
January 04, 2024
Filing Date:
June 13, 2023
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
G01S7/495; G01C3/06; G01S7/484; G01S17/10
Domestic Patent References:
| WO2022034856A1 | 2022-02-17 | |||
| WO2017110417A1 | 2017-06-29 |
Foreign References:
| JP3185547B2 | 2001-07-11 | |||
| JP2013076645A | 2013-04-25 | |||
| US20200319339A1 | 2020-10-08 | |||
| JP2021012091A | 2021-02-04 | |||
| JP2019049480A | 2019-03-28 | |||
| JP2018119942A | 2018-08-02 | |||
| JP2010025906A | 2010-02-04 | |||
| JPS61149879A | 1986-07-08 | |||
| JP2019158894A | 2019-09-19 |
Attorney, Agent or Firm:
TECHNOPEER PATENTS & TRADEMARKS (JP)
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