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:
Aug. 22, 2017
Filed:
Apr. 02, 2013
Pioneer Corporation, Kanagawa, JP;
Akira Shimizu, Saitama, JP;
PIONEER CORPORATION, Kanagawa, JP;
Abstract
A plurality of projections is arranged in a matrix on the upper surface of the housing of a contactless charging unit (). When supplying power wirelessly to an onboard power reception device, a beam emission unit in a beam reception and emission unit () emits a laser beam progressing along the upper surface of a power transmission unit () to scan the upper part of the entire upper surface of the power transmission unit (). When receiving a reflected beam, the beam reception unit in the beam reception and emission unit () sends the results of beam reception to a determination unit. The determination unit determines the presence or absence of a foreign substance supported on at least one projection existing on the upper surface of the contactless charging unit () on the basis of the results of beam reception. Subsequently, when a foreign substance is present on the upper surface of the contactless charging unit (), the control unit generates a supply control command indicating that no power is to be supplied to the onboard power reception device and sends the command to a supply unit. This will enable wireless power supply using the contactless system without any problem in terms of safety.