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:
Jun. 15, 2010
Filed:
Feb. 01, 2006
Akiyoshi Takeuchi, Ishikawa, JP;
Yutaka Saito, Ishikawa, JP;
Kouta Aoki, Kanagawa, JP;
Panasonic Corporation, Kadoma-shi, JP;
Abstract
The present invention provides a folding type and portable wireless apparatus with a built-in antenna, particularly a portable wireless apparatus that reduces a local average SAR and improves performance of antenna. A housing open/close detecting unitdetects open/close of bodiesand. When the bodiesandare open, a first antennaand a wireless circuitare connected and resonant frequency of a second antennais adjusted into a first frequency bandwidth, and when the bodiesandare closed, the resonant frequency of the second antennais adjusted into the first frequency bandwidth and a second frequency bandwidth and a wireless circuitis connected. Therefore, when the bodiesandare open, it is possible to reduce a local average SAR by separating an antenna current. Further, when the bodiesandare closed, it is possible to obtain a high antenna gain.