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:
Jul. 21, 2026
Filed:
Apr. 10, 2024
Denso Corporation, Kariya-city, JP;
Kenichiro Sanji, Kariya-city, JP;
Yohei Nakakura, Kariya-city, JP;
Takashi Saiki, Kariya-city, JP;
Yasuhiro Tanaka, Kariya-city, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A position determination system includes a microcomputer configured to: control operations of multiple outdoor units and an indoor unit; determine whether a portable device is present inside a vehicle interior or in an outdoor operation area; acquire a reception strength of a signal from the portable device in each indoor and outdoor units, acquire a time of flight (ToF) correlation value as a parameter different from the reception strength, change a type of the parameter used for position determination corresponding to an area for which the position determination is to be performed; determine whether the portable device is present inside the vehicle interior based on the reception strength observed in each outdoor unit and indoor unit, determine whether the portable device is present in the outdoor operation area based on the ToF correlation value.