PORTABLE ELECTRONIC DEVICE INCLUDING TOUCH-SENSITIVE INPUT DEVICE AND METHOD OF CONTROLLING SAME
First Claim
Patent Images
1. A touch-sensitive input unit comprising:
- a basea touch-sensitive input surface for detecting a touch event thereon, the touch-sensitive input surface connected to and moveable relative to the base; and
an actuating arrangement comprising an elastically deformable substrate between the touch-sensitive input surface and the base, and a piezoelectric patch transducer fixed to the substrate for controlling a bending force on the substrate to control a force on the touch-sensitive input surface by modulating a charge at the patch transducer.
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Abstract
A touch-sensitive input unit includes a base, a touch-sensitive input surface for detecting a touch event thereon, the touch-sensitive input surface connected to and moveable relative to the base, and an actuating arrangement including an elastically deformable substrate between the touch-sensitive input surface and the base, and a piezoelectric patch transducer fixed to the substrate for controlling a bending force on the substrate to control a force on the touch-sensitive input surface by modulating a charge at the patch transducer.
64 Citations
23 Claims
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1. A touch-sensitive input unit comprising:
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a base a touch-sensitive input surface for detecting a touch event thereon, the touch-sensitive input surface connected to and moveable relative to the base; and an actuating arrangement comprising an elastically deformable substrate between the touch-sensitive input surface and the base, and a piezoelectric patch transducer fixed to the substrate for controlling a bending force on the substrate to control a force on the touch-sensitive input surface by modulating a charge at the patch transducer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A portable electronic device comprising:
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a base; a display device; a touch-sensitive input surface and a controller connected to the touch-sensitive input surface for detecting a touch event thereon, the touch-sensitive input surface connected to and moveable relative to the base; and an actuating arrangement comprising an elastically deformable substrate between the touch-sensitive input surface and the base, and a piezoelectric patch transducer fixed to the substrate for controlling a bending force on the substrate to control a force on the touch-sensitive input surface by modulating a charge at the patch transducer; and operational components comprising a processor connected to the display device, the controller and the touch-sensitive input surface for modulating the charge at the patch transducer to thereby control the bending force. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification