可實現手機無線充電 日本富士通公司研製新系統
According to the Daily Telegraph of September 15, Fujitsu, a Japanese technology company, has created asystem capable of simultaneously charging multiple portable electronic devices such as mobile phones, digital cameras and laptop computers without the need for cable connections.
Electric cars users may also eventually be able to charge their vehicles wirelessly using the same technology，said the company, which unveiled a prototype system at the Institute of Electronics, Information and Communication Engineers conference at Osaka Prefecture University. Claiming to be the world's first of its kind, the technology works on the basis of the transmission of electricity using magnetic fields between the charger and the electronic device.
The system enables wireless charging at distances of up to several metres, with the ultimate aim of installing public "charging spots" on the streets in order to enable easy charging around the clock. Scientists at Fujitsu Laboratories are planning to commercially sell products incorporating the new wireless charging system as early as 2012 but did not disclose how much they would cost.
"This technology paves the way to integrating compact wireless charging functions into mobile phones and enabling multiple portable devices to be charged simultaneously without any restrictions on their position with respect to the charger," the company said in a statement.
Mobile phone users in Japan can currently top up their batteries using disposable portable plug-in battery-operated devices, available at most train stations and convenience stores. However, phone companies warn prolonged use can damage the phones.
The company added: "We are also looking at applying the results of this work to fields other than portable electronics, including power transmission between circuit boards or computer chips, and providing mobile charging systems for electric cars."
據《每日電訊報》9月15日報道，日本富士通公司研製出一套可以同時爲多個便攜式電子產品（如手機、數碼相機和筆記本電腦）無線充電的系統。
富士通公司在大阪府立大學電子信息通訊學會的會議上推出這一原理系統。該公司稱，電動汽車的使用者未來也可以利用這種無線充電技術爲汽車充電。富士通公司稱，該系統是世界上首個無線充電系統。這項技術利用充電系統和電子產品之間的磁場傳輸電能。
該系統可以在距離電子產品幾米遠的地方進行無線充電。研究人員的最終目標是在公路旁建公共的“充電站”，以提供便捷的充電服務。富士通公司實驗室的研究人員計劃最早於2012年讓採用這種系統的產品上市，但他們未透露這些產品的售價。
富士通公司在一份聲明中說：“這項技術爲無線充電技術與手機的整合鋪平了道路，並使多種便攜式電子產品不受其與充電系統的距離限制同時進行充電。
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現在，日本的手機用戶可以使用一次性便攜式充電器爲電池充電。在大多數火車站和便利店都可以購買這種產品。但手機公司警告說，長期使用這種充電器可能對手機造成損害。
富士通公司還表示，希望將這項技術應用於便攜式電子產品以外的領域，包括電路板或電腦芯片之間的電能傳輸，以及爲電動汽車提供移動充電系統。
