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:
Dec. 11, 2012
Filed:
Oct. 13, 2009
Jun Yamaguchi, Aichi, JP;
Toshiharu Katagiri, Aichi, JP;
Takumi Tamezane, Aichi, JP;
Yoshiyuki Seki, Aichi, JP;
Jun Yamaguchi, Aichi, JP;
Toshiharu Katagiri, Aichi, JP;
Takumi Tamezane, Aichi, JP;
Yoshiyuki Seki, Aichi, JP;
Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi, JP;
Abstract
A vehicle electronic portable key system including a master key and sub-key. A retainer is arranged in the vehicle to retain the sub-key. A control unit determines whether the master key or sub-key is located in a vehicle interior or exterior wireless communicatable area. When the key is located in one of the wireless communicatable areas, the control unit permits various operations of the vehicle in accordance with the communicable area in which the key is located. The control unit determines that the sub-key is in a lent state if the sub-key is removed from the retainer when the master key is located in the interior wireless communicatable area. In a state in which the sub-key is located in one of the wireless communicatable areas after removal from the retainer, the control unit limits the operations of the vehicle unless the sub-key is determined as being in the lent state.