发明名称 |
TOUCH-SCREEN DEVICE INCLUDING TACTILE FEEDBACK ACTUATOR |
摘要 |
A tactile feedback actuator includes a first electrode and a second electrode separated by a gap, and a surface layer above the first and second electrodes. The first electrode receives a first stimulus voltage at a first frequency and the second electrode receives a second stimulus voltage at a second frequency, and the first and second electrodes superimpose the first and second stimulus voltages to generate a total voltage that has a beat frequency less than a perception threshold frequency. An object in contact with a portion of the surface layer is caused to vibrate at the beat frequency. The first electrode and the second electrode may constitute an electrode array including a plurality of column electrode segments, and a plurality of row electrode segments. An object in contact with a portion of the surface layer above one or more electrode segments is caused to vibrate at the beat frequency.
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申请公布号 |
US2013307789(A1) |
申请公布日期 |
2013.11.21 |
申请号 |
US201213474195 |
申请日期 |
2012.05.17 |
申请人 |
KARAMATH JAMES ROBERT;BROWN CHRISTOPHER JAMES;CASTILLO SERGIO GARCIA;WALTON HARRY GARTH;SHARP KABUSHIKI KAISHA |
发明人 |
KARAMATH JAMES ROBERT;BROWN CHRISTOPHER JAMES;CASTILLO SERGIO GARCIA;WALTON HARRY GARTH |
分类号 |
G08B6/00;G06F3/041 |
主分类号 |
G08B6/00 |
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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