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:
Dec. 01, 2009
Filed:
Jun. 27, 2005
Nobuharu Mashima, Toyama, JP;
Kiyoshi Nakanishi, Kanagawa, JP;
Masayoshi Hirai, Kanagawa, JP;
Hideo Nakanishi, Kanagawa, JP;
Nobuharu Mashima, Toyama, JP;
Kiyoshi Nakanishi, Kanagawa, JP;
Masayoshi Hirai, Kanagawa, JP;
Hideo Nakanishi, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The invention is to improve antenna performance in an internal antenna in a closed state without deteriorating the antenna performance in a state where a foldable portable radio apparatus is opened. A foldable portable radio apparatus includes a foldable mechanism in which an upper casingand a lower casingare rotatably connected, a first conductor plateand a second conductor platethat are provided in the upper casing, and a feeding system that is provided in the lower casing, and connects an antenna element, a circuit board, the first conductor plate, and the circuit board, a detecting unitthat detects opened and closed states between the upper casingand the lower casing, and a first switching unitthat switches between an electrically opened state and an electrically short-circuited state between the first conductor plate and the second conductor plate according to the detected result by the detecting unit