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. 11, 2017
Filed:
Mar. 12, 2014
Denso Corporation, Kariya, Aichi-pref., JP;
Masahito Kojima, Kariya, JP;
DENSO CORPORATION, Kariya, Aichi-pref., JP;
Abstract
An electronic key system includes a mobile device and a control device. Main identification information identifying the control device is registered in the control device as registrant identification information. When the mobile device receives a response request including the registrant identification information and response timing, the mobile device compares the registrant identification information and the response timing which included in the response request with registrant identification information and response timing registered in the mobile device. When a result of the comparing is a match, the mobile device transmits the mobile device code to the control device. The control device includes a registration unit that newly generates the main identification information with different content each time a registration command is inputted, and registers the newly generated main identification information in a storage device of the control device as registrant identification information.