Piezoelectric actuator arrangement
First Claim
Patent Images
1. A portable electronic device comprising:
- a touch-sensitive display;
a piezoelectric actuator arranged to provide tactile feedback to the touch-sensitive display in response to an actuation signal;
a pad disposed in alignment with a force sensor such that depression of the touch-sensitive display causes the force sensor to generate a force signal, wherein the pad and the force sensor are disposed between the piezoelectric actuator and the touch-sensitive display, and wherein the pad is disposed in alignment with the force sensor to focus forces exerted on the touch-sensitive display onto the force sensor such that depression of the touch-sensitive display causes the force sensor to generate a force signal;
a processor configured to receive the force signal and to generate the actuation signal based on the force signal.
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Abstract
A portable electronic device includes a touch-sensitive display and a piezoelectric actuator arranged to provide tactile feedback to the touch-sensitive display in response to an actuation signal. A pad is disposed in alignment with a force sensor such that depression of the touch-sensitive display causes the force sensor to generate a force signal. A processor configured to receive the force signal and to generate the actuation signal based on the force signal.
88 Citations
23 Claims
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1. A portable electronic device comprising:
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a touch-sensitive display; a piezoelectric actuator arranged to provide tactile feedback to the touch-sensitive display in response to an actuation signal; a pad disposed in alignment with a force sensor such that depression of the touch-sensitive display causes the force sensor to generate a force signal, wherein the pad and the force sensor are disposed between the piezoelectric actuator and the touch-sensitive display, and wherein the pad is disposed in alignment with the force sensor to focus forces exerted on the touch-sensitive display onto the force sensor such that depression of the touch-sensitive display causes the force sensor to generate a force signal; a processor configured to receive the force signal and to generate the actuation signal based on the force signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A portable electronic device comprising:
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a housing; a touch-sensitive display movable with respect to the housing; a force sensor and a piezoelectric actuator disposed between the housing and the touch-sensitive display; a pad disposed in alignment with the force sensor such that depression of the touch-sensitive display causes the force sensor to generate a force signal, wherein the pad, the force sensor, the piezoelectric actuator, and the touch-sensitive display are compressively stacked when the display is not depressed; a processor configured to receive the force signal and to provide an actuation signal to the piezoelectric actuator, which actuation signal causes the piezoelectric actuator to provide tactile feedback to the touch-sensitive display. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A portable electronic device comprising:
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a housing; a touch-sensitive display movable with respect to the housing; a force sensor and a piezoelectric actuator disposed between the housing and the touch-sensitive display; a pad disposed in alignment with the force sensor such that depression of the touch-sensitive display causes the force sensor to generate a force signal, wherein the pad is disposed in alignment with the force sensor to focus forces exerted on the touch-sensitive display onto the force sensor such that depression of the touch-sensitive display causes the force sensor to generate a force signal; a processor configured to receive the force signal and to provide an actuation signal to the piezoelectric actuator, which actuation signal causes the piezoelectric actuator to provide tactile feedback to the touch-sensitive display.
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23. A portable electronic comprising:
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a touch-sensitive display; a piezoelectric actuator arranged to provide tactile feedback to the touch-sensitive display in response to an actuation signal; a pad disposed in alignment with a force sensor such that depression of the touch-sensitive display causes the force sensor to generate a force signal, wherein the pad and the force sensor are disposed between the piezoelectric actuator and the touch-sensitive display, and wherein the pad, the force sensor, the piezoelectric actuator, and the touch-sensitive display are compressively stacked when the display is not depressed; a processor configured to receive the force signal and to generate the actuation signal based on the force signal.
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Specification