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:
Apr. 28, 2020
Filed:
Dec. 04, 2018
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Ryuta Atsumi, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A vehicle alarm system includes a first device mounted on a vehicle, and a second device mounted on the vehicle. The first device authenticates the second device by first wireless communication processing with the second device, detects that a state of the vehicle is changed in a predetermined pattern in a case where the second device is successfully authenticated, and outputs a predetermined alarm instruction when the first device detects that the first wireless communication processing is stopped. The second device authenticates a portable terminal device by second wireless communication processing with the portable terminal device, and performs the first wireless communication processing with the first device in a case where the portable terminal device is successfully authenticated. The first device causes the second device to stop the first wireless communication processing when the first device detects a predetermined first state change of the vehicle.