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. 23, 2013
Filed:
Jan. 22, 2010
Kazuhiro Nakashima, Kariya, JP;
Arinobu Kimura, Toyota, JP;
Hiroki Okada, Toyota, JP;
Hiroko Murakami, Toyota, JP;
Kazuhiro Nakashima, Kariya, JP;
Arinobu Kimura, Toyota, JP;
Hiroki Okada, Toyota, JP;
Hiroko Murakami, Toyota, JP;
Denso Corporation, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
In an in-vehicle device control system, a vehicle-side unit mounted in a vehicle controls an in-vehicle device in accordance with a result of checkup about a portable device performed by mutual communications, in which the portable device returns a response signal in response to a request signal transmitted from the vehicle-side unit. An ECU of the vehicle-side unit checks whether it is a regular checkup timing, and performs an exterior checkup if it is determined to be the regular checkup timing. The ECU sets in this case a communication frequency, which is higher in priority order, as a communication frequency to be designated to the portable device.