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Title:
電子機器
Document Type and Number:
Japanese Patent JP5669320
Kind Code:
B2
Abstract:
An electronic device includes an electronic device main body, a USB connection unit, a VBUS detecting unit, a USB control unit, a battery contained in the electronic device main body, a battery monitoring unit, a charging control unit, a switch, and, a system control unit that controls the switch and the charging control unit. The VBUS detecting unit detects connection of the USB device. If the USB control unit determines that D+ and D− terminals of the USB connection unit are not short-circuited, when a battery voltage obtained from the battery monitoring unit is a preset threshold value or less, the system control unit starts charging of the battery.

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Inventors:
勝又 智樹
Application Number:
JP2012110038A
Publication Date:
February 12, 2015
Filing Date:
May 11, 2012
Export Citation:
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Assignee:
パナソニック インテレクチュアル プロパティ コーポレーション オブアメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ
International Classes:
H02J7/02; H01M10/44; H01M10/48; H01M50/574; H02J7/00
Attorney, Agent or Firm:
Kimihide Hashimoto
Masaaki Yoshida



 
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