JP2006157586A - 携帯無線機器 - Google Patents
携帯無線機器 Download PDFInfo
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Abstract
【課題】医療分野における携帯無線機は軽量小型が要求される一方、電池切れなどは許されない。 すなわち大容量の電池を使用したいが、軽量小型化のためには使用できないという問題があった。 また、間欠受信で消費電力を抑え、この問題を解決する技術も考えられているが制御が複雑になる。 更には、充電式の電源では小まめな充電が必要となる。 そこで本発明はこれらの問題を解決し、随時、自動的に充電を行う充電手段を有する携帯無線機の提供を課題とする。【解決手段】アンテナで捉えた電波を整流、平滑して蓄電池を充電し、蓄えられた電力で無線回路を動作させることにより課題を解決する。【選択図】図１
Description
本発明は携帯無線機器に関する。
開示した特許文献のように、医療分野においても携帯無線機が利用されている。同様な無線機は緊急時に用いるものであり、必要な時に電池切れで使用できないなど許されない。 一方、弱者に携帯させることから軽量小型が要求される。 軽量小型を実現する為に大容量の電池が使用できず、電池切れの問題と矛盾する。開示した特許文献では、間欠受信で消費電力を抑え、この問題を解決している。
特開平１０−１１７３６６号 公開公報
ところで、充電忘れがなければ、同様の無線機は充電式のほうが便利である。また、充電する機会が多ければ蓄電池も小型のものが使用できる。そこで本発明は、随時、自動的に充電を行う充電手段を有する携帯無線機の提供を課題とする。
アンテナで捉えた電波を整流、平滑して蓄電池に加えることにより課題を解決する。
アンテナで捉えた電波を整流、平滑して蓄電池に加え、蓄えられた電力により動作するので、小型且つ電池切れの心配のない携帯無線機を実現できる。
本発明の実施例の１つを図を用いて説明する。アンテナは本来の通信に用いられると共に、空間中の他の電波も捉える。図示しないが通信に用いられるアンテナと、空間中の他の電波を捉えるアンテナをそれぞれ別に設けてもよい。
選択回路は通信で使用しない電波を選択する。 具体的な回路はコイルとコンデンサによる共振回路などが考えられる。
選択回路によって選択された電波は整流回路によって整流される。
整流回路からの電流はリップル成分が含まれているので平滑回路で平滑される。
リップル成分等が除去された電流は蓄電池に供給され蓄電池を充電する。
電圧変換回路は蓄電池に充電された電圧を無線回路などの付加が要求する電圧に変換し付加に供給する。
無線回路は無線通信に用いられ、音声やデータを送受する。
充電状態検出回路は電圧や電流の変化を監視して充電完了を検出するものである。 同機能を実現するＩＣが既に多くのメーカから多品種販売されているので、これらを用いればよい。
Claims (2)
- アンテナと前記アンテナで捉えた電波を選択する選択回路と選択された電波を整流する整流回路と前記整流回路からの電流を平滑する平滑回路と平滑された電流を蓄える蓄電池と有し前記蓄電池に蓄えられた電力で動作することを特徴とする携帯無線機。
- 前記蓄電池の充電状況を検出し、充電完了時は発光及び発音させ充電完了を知らせることを特徴とする請求項１記載の携帯無線機。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| JP2004346297A JP2006157586A (ja) | 2004-11-30 | 2004-11-30 | 携帯無線機器 |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2004346297A JP2006157586A (ja) | 2004-11-30 | 2004-11-30 | 携帯無線機器 |
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| JP2006157586A true JP2006157586A (ja) | 2006-06-15 |
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| JP2004346297A Pending JP2006157586A (ja) | 2004-11-30 | 2004-11-30 | 携帯無線機器 |
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