发明名称 |
ACOUSTIC WAVE TOUCH ACTUATED SWITCH WITH FEEDBACK |
摘要 |
An acoustic wave switch includes a substrate (14) with an acoustic wave cavity (20) formed therein such that the mass per unit area of the acoustic cavity is greater than the mass per unit area of the substrate adjacent the cavity. A transducer (26) is mounted on the acoustic cavity (20) for generating an acoustic wave that is substantially trapped in the cavity. A touch on the touch surface (28) of the acoustic wave cavity absorbs acoustic wave energy and produces a detectable change in the impedance of the transducer. Various feedback mechanisms can be employed to provide a user with a tactile, audible and/or visual response indicating actuation of the switch by a touch.
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申请公布号 |
WO03044815(A8) |
申请公布日期 |
2004.04.22 |
申请号 |
WO2002US30850 |
申请日期 |
2002.09.30 |
申请人 |
TEXZEC, INC. |
发明人 |
KNOWLES, TERENCE, J.;BREMIGAN, CHARLES, F. III |
分类号 |
H03K17/96;(IPC1-7):G09G5/00;G08C21/00 |
主分类号 |
H03K17/96 |
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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