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Electronic apparatus and electronic apparatus charging system

  • US 8,629,653 B2
  • Filed: 10/21/2009
  • Issued: 01/14/2014
  • Est. Priority Date: 03/05/2009
  • Status: Expired due to Fees
First Claim
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1. An electronic apparatus comprising:

  • a housing having a predetermined face;

    a power receiver that receives electric power in a contactless manner by way of the predetermined face;

    a secondary battery that is charged by electric power received by the power receiver;

    a front-back detection unit that detects whether or not the predetermined face faces a charger; and

    an alarm unit that notifies that the predetermined face is situated at a position inappropriate for charging when the front-back detection unit detects that the predetermined face does not face the charger, whereinthe housing has a first surface serving as the predetermined face and a second surface that is opposite to the first surface,an acceleration detection unit is provided as the front-back detection unit,the acceleration detection unit detects gravity of +1 when the first surface is situated down, whereas the acceleration detection unit detects gravity of −

    1 when the second surface is situated down, andthe first surface is detected not to face the charger when the acceleration detection unit has detected a predetermined gravity from −

    1 to 0.

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