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. 03, 1999
Filed:
Apr. 22, 1997
Hitoshi Kakizawa, Osaka, JP;
Nippon Sheet Glass Co., Ltd., , JP;
Abstract
A window glass antenna system is attached to a surface of a pane of vehicular window glass and comprises an antenna switching circuit attached directly onto the window glass pane in close proximity to antennas of the system for switching over the antennas. The antenna switching circuit has a plurality of mounting terminals and a plurality of input signal lines connected to the mounting terminals which in turn are fixedly secured to power terminals fixed to the window glass pane for powering the antennas. The thus-arranged antenna system has improved directional repeatability and reception sensitivity in that the antenna switching circuit is positioned closely to the antennas and connected to the antenna powering terminals without requiring the use of any elements that may form part of the antennas during operation thereof.