KEYBOARD HAVING TACTILE FEEDBACK
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United States of America Patent
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Issued Date -
Feb 5, 2015
app pub date -
Jul 30, 2014
filing date -
Jul 31, 2013
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Abstract
A keyboard capable of generating a tactile feedback signal makes use of acceleration change of pressing behavior and releasing behavior of a physical keyswitch during pressing and releasing stages. The acceleration change is modulated according to a touch sensitive frequency response in various ways so that a simulated tactile feedback may be generated on the keyswitches of the keyboard.
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