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. 06, 2012
Filed:
Dec. 24, 2008
Daigo Imano, Miyagi, JP;
Hironori Kikuchi, Miyagi, JP;
Kenichi Sato, Miyagi, JP;
Yasuhiro Kitajima, Kanagawa, JP;
Nobuhiro Iwai, Kanagawa, JP;
Tatsuya Sano, Tokyo, JP;
Daigo Imano, Miyagi, JP;
Hironori Kikuchi, Miyagi, JP;
Kenichi Sato, Miyagi, JP;
Yasuhiro Kitajima, Kanagawa, JP;
Nobuhiro Iwai, Kanagawa, JP;
Tatsuya Sano, Tokyo, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A foldable portable radio device adapted to a plurality of frequency bands has a good antenna performance in all the use frequency bands even in both open and folded states. In the foldable portable radio device, a control section () controls switching means () to connect a sub-matching circuit () and a first circuit element () when a first use frequency band is used and further when the foldable portable radio device is in the open state and to connect the sub-matching circuit () and a second circuit element () when a first use frequency band is used and further when the foldable portable radio device is in the closed state, or when a second use frequency band is used irrespective of the open/closed state of the foldable portable radio device.