发明名称 |
KEY BACKLIGHT CONTROLLER, PORTABLE TERMINAL, KEY BACKLIGHT CONTROL METHOD, AND KEY BACKLIGHT CONTROL PROGRAM |
摘要 |
A key backlight controller, a portable terminal, a key backlight control method, and a program which reduce a consumption current during key operation. A key backlight controller (100) comprises a key input section (120) for inputting data by key depression, a key backlight section (140) for illuminating the key input section (120), a time measurement section (130) for clocking a certain period of time from the key depression, and a key backlight operation control unit (110) for performing a key backlight control to turn off the backlight section (140) for a certain period of time during which the time measurement section (130) measures when the key depression by the key input section (120) is detected while the backlight operates. |
申请公布号 |
EP2071431(A1) |
申请公布日期 |
2009.06.17 |
申请号 |
EP20060810799 |
申请日期 |
2006.09.28 |
申请人 |
PANASONIC CORPORATION |
发明人 |
NISHI, DAISUKE;ASAI, YUTAKA |
分类号 |
G06F3/02;H04M1/22;H04M1/73 |
主分类号 |
G06F3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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