MOBILE TERMINAL DEVICE

PROBLEM TO BE SOLVED: To reduce electromagnetic wave energy absorbed by a human body and to mitigate an impact on the human body by an antenna radiation characteristic in comparison with up to now.SOLUTION: In a mobile terminal device, a first sensor 26 is provided in the vicinity of a speaker used...

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Bibliographic Details
Main Authors KANAO MASAAKI, SATO NAOKI
Format Patent
LanguageEnglish
Japanese
Published 19.11.2015
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
TRANSMISSION
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Summary:PROBLEM TO BE SOLVED: To reduce electromagnetic wave energy absorbed by a human body and to mitigate an impact on the human body by an antenna radiation characteristic in comparison with up to now.SOLUTION: In a mobile terminal device, a first sensor 26 is provided in the vicinity of a speaker used during communication using a telephone function, and able to detect contact or closeness of a human head. Second sensors 20 are provided at both ends in the transverse direction of a housing and able to detect a position where a hand and a finger touch. A communication control unit 38 adjusts at least one of the matching state of an antenna ANT and the transmission power of an electromagnetic wave output from the antenna ANT on the basis of detection results of the first and second sensors 26, 20. 【課題】人体に吸収される電磁波エネルギーを低減するとともに、アンテナ放射特性に対する人体の影響を従来よりも緩和する。【解決手段】携帯端末装置において、第１のセンサ２６は、電話機能での通話時に使用されるスピーカの近傍に設けられ、人体頭部の接触または近接を検出することが可能である。第２のセンサ２０は、筐体の短手方向の両端部に設けられ、手および指が接触する位置を検出することが可能である。通信制御部３８は、第１および第２のセンサ２６，２０の検出結果に基づいて、アンテナＡＮＴの整合状態およびアンテナＡＮＴから出力する電磁波の送信電力の少なくとも一方を調整する。【選択図】図２
Bibliography:Application Number: JP20140085447