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:
Jun. 25, 2019
Filed:
Mar. 10, 2016
Denso Corporation, Kariya, Aichi-pref., JP;
Kenichiro Sanji, Kariya, JP;
Noritaka Hirao, Kariya, JP;
Suguru Matsushita, Kariya, JP;
Takatoshi Sekizawa, Kariya, JP;
Yasuhiro Tanaka, Kariya, JP;
Mitsugi Ohtsuka, Kariya, JP;
DENSO CORPORATION, Kariya, Aichi-pref., JP;
Abstract
A user identification system is provided, which includes an in-vehicle apparatus used by multiple users and a vehicular portable device carried by a user acting as a driver and associated with the in-vehicle apparatus. The vehicular portable device detects received signal strength of signals received from the portable terminals at multiple time points, and based on the received signal strength detected by the received signal strength detector, determines a driver terminal which is the portable terminal carried by the user acting as the driver. The vehicular portable device determines as the driver terminal the portable terminal that provides a smallest degree of change of the received signal strength detected multiple times.