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:
Oct. 01, 2013
Filed:
Oct. 01, 2009
Takafumi Tokuhiro, Kanagawa, JP;
Takashi Motoyama, Kanagawa, JP;
Yutaka Saito, Ishikawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
Provided are a device and a method that can classify an incoming wave and can correctly distinguish the position of an originating device, even in a multipath environment. A principal vertically polarized wave arrival direction sensing unit (-) and a principal horizontally polarized wave arrival direction sensing unit (-) respectively sense the arrival direction of a principal wave by sensing the arrival direction in which the maximum reception level is obtained. An incoming wave classifying decision unit () determines that a direct wave has arrived when the difference between the principal wave arrival direction sensed by the principal vertically polarized wave arrival direction sensing unit (-) and the principal wave arrival direction sensed by the principal horizontally polarized wave arrival direction sensing unit (-) is within a prescribed threshold value, and determines that a direct wave has not arrived when the difference is greater than the threshold value.