| 摘要 |
An electronic device ( 100 ) provides tactile feedback provided by a low cost, thin piezoelectric actuator ( 142 ) giving tactile feedback emulating a click like feed. The electronic device ( 100 ) comprises a chassis plate ( 122 ) having a periphery secured to a housing ( 102, 104 ) and comprising a flexible material having a first planer side ( 123 ), and a second planer side ( 125 ) opposed to the first planer side ( 123 ). An input device ( 110 ) has a planer side ( 111 ) positioned adjacent to and in contact with to the first planer side ( 123 ) of the chassis ( 122 ) and extends through an opening ( 108 ) in the housing ( 102, 104 ). One or more piezoelectric actuators ( 142 ) are secured to the second planer side ( 125 ) and within the periphery of the chassis plate ( 122 ). Electronic circuitry ( 208 ) positioned within the housing ( 102, 104 ) drives the piezoelectric actuators ( 142 ) in response to the input device ( 110 ) being actuated. The input provided to the input device ( 110 ) is sensed by the electronic circuitry ( 208 ). The circuitry ( 208 ) provides a voltage waveform to activate the one or more piezoelectric actuators ( 142 ), which flexes the chassis plate ( 122 ) and the input device ( 110 ) to emulate the click like feed. A second exemplary embodiment positions the piezoelectric actuators ( 142 ) between the chassis plate ( 122 ) and the input device ( 110 ).
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