The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 2025
Filed:
May. 16, 2022
Subaru Corporation, Tokyo, JP;
Kousei Kawamura, Tokyo, JP;
Tomoya Kanagawa, Tokyo, JP;
SUBARU CORPORATION, Tokyo, JP;
Abstract
A system to detect an occupant left in a vehicle includes a sensor, a determiner, and a controller. The sensor outputs a radio wave and detects a wave reflected by the occupant being left in the compartment. The determiner determines whether the occupant is left in the compartment, at least based on a detection result from the detected reflected wave. The controller selects a radio wave to be output from the sensor from those of different frequencies including a first radio wave a second radio wave lower in frequency than the first radio wave. The controller is configured to switch from the first radio wave to the second radio wave when the occupant is leaving the vehicle, and cause the determiner to determine whether the occupant is left, based on a detection result from the reflected wave detected by the sensor which output the second radio wave.