Input device, electronic apparatus and method for controlling input device
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United States of America Patent
Stats
-
Apr 28, 2009
Grant Date -
Oct 18, 2007
app pub date -
Apr 6, 2007
filing date -
Apr 17, 2006
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An input device includes an input detection portion which enables detection of position inputs according to change of capacitance; a position detection portion which reads detection signals from the input detection portion and detects positions thereof; a light emitting portion placed near the input detecting portion; driving portion which drives the light emitting portion; a monitoring portion which monitors a driving voltage applied from the driving portion to the light emitting portion; and a control portion which controls a generation of pulse signals at times when the position detection portion reads the position inputs from the input detection portion, the generation of the times being based on the driving voltage monitored by the monitoring portion.
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