PORTABLE INFORMATION TERMINAL
PROBLEM TO BE SOLVED: To reduce wasteful power consumption and to prolong a battery life by appropriately controlling lighting time when an illumination device is continuously lighted in accordance with time when the illumination device is lighted. SOLUTION: A time detecting means detects the presen...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
22.01.2004
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To reduce wasteful power consumption and to prolong a battery life by appropriately controlling lighting time when an illumination device is continuously lighted in accordance with time when the illumination device is lighted. SOLUTION: A time detecting means detects the present time. A setting means sets a first time window and a second time window. When the present time is included in the first time window, an illumination control means controls to shorten time when illumination is continuously lighted compared to a case when the present time is included in the second time window. COPYRIGHT: (C)2004,JPO |
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Bibliography: | Application Number: JP20020173139 |