INPUT DETECTION DEVICE
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United States of America Patent
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N/A
Issued Date -
Mar 21, 2013
app pub date -
Sep 14, 2012
filing date -
Sep 20, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
When a first driving signal is applied from a waveform output unit, detection current with a high frequency than a natural frequency of a vibrator is applied to a coil of a vibration generation unit. When the current fluctuates, induction power due to a counter-electromotive force is inducted to a external casing of the vibration generation unit. The induction power is changed in an input unit, and when a level of an output due to the change thereof greatly fluctuates, a second driving signal is output from the waveform output unit, and logical sum of the first driving signal and the second driving signal is applied to a driving circuit. At this time, a vibration current flows to the coil, and the vibrator vibrates by the natural frequency.
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