ELECTRONIC APPARATUS HAVING POWER GENERATING FUNCTION

WIPO Patent Application WO/2008/053809

A1

The continuous use time of an electronic apparatus using a secondary battery is prolonged by supplementing the power consumption by effectively utilizing a light source and an extraneous light and a simple constitution. On the back of a case (201) of a portable phone, a light source (204), a light-guide key sheet (203) having operation keys (206), and a solar cell (202) are stacked. The operation keys (206) are exposed to the outside through through-holes (208) of the solar cell (202) and through-holes (207) of the case (201). The key sheet (203) guides light from the light source (204) and light from outside the case (201) to the solar cell (202) and guides light from the light source (204) to the operation keys (206). The solar cell (202) receives the light from the light source (204) and from outside the case (201) through the key sheet (203) and converts the light energy into electrical energy to charge the secondary battery.

JP5298057	Power saving system
JPH04284520	CENTRALIZED POWER-OFF SYSTEM IN NETWORK SYSTEM

YAMADA KOUJI (JP)

PCT/JP2007/070935

May 08, 2008

October 26, 2007

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NEC CORP (JP)
YAMADA KOUJI (JP)

G06F1/26; G06F3/02; G09F9/00; H01H9/16; H01H13/02; H01L31/04; H02J7/35; H04M1/02

JPH10222113A	1998-08-21
JP2002055628A	2002-02-20
JP2004013145A	2004-01-15
JPH08262997A	1996-10-11
JP2002077343A	2002-03-15
JP2004178551A	2004-06-24
JPH0434044U	1992-03-19
JP2002077343A	2002-03-15
JP2001292214A	2001-10-19
JP2002055628A	2002-02-20

MARUYAMA, Takao (SAM Build. 3floor38-23, Higashi-Ikebukuro 2-chom, Toshima-ku Tokyo 13, JP)

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