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:
Mar. 22, 2016
Filed:
Dec. 13, 2012
Denso Corporation, Kariya, Aichi-pref., JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Takahide Kitahara, Kariya, JP;
Ryuta Atsumi, Toyota, JP;
DENSO CORPORATION, Kariya, Aichi-pref., JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Abstract
In a wireless communication system, an approach determination section determines whether a portable device is inside of a nearby area of one of a plurality of transmitting antennas transmitting a primary signal. When the approach determination section determines that the portable device is inside of the nearby area, a transmission control section changes a driving voltage of another one of the transmitting antennas disposed outside of the nearby area, such that a communication area of the another one of the transmitting antennas is increased to encompass the nearby area of the one of the transmitting antennas, and the primary signal is retransmitted from the another one of the transmitting antennas.