Force sensing of inputs through strain analysis
First Claim
1. An electronic device, comprising:
- a frame at least partially enclosing an interior of the electronic device, the frame having an open end;
a cover glass covering the open end of the frame;
a plurality of strain probes positioned under the cover glass, between the cover glass and the frame, and arranged to output a plurality of strain signals responsive to one or more forces applied to the electronic device; and
a force processing module configured to at least calculate an amount of force applied to the electronic device based on the plurality of strain signals.
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Accused Products
Abstract
An electronic device has a force sensor that determines a measure of applied force from a user contacting a cover glass of the device. In one embodiment, a frame at least partially encloses an interior of the electronic device and has an open end. A cover glass covers the open end of the frame and is movably connected to the frame to allow movement of the cover glass in response to one or more forces applied to an external surface of the cover glass. A plurality of strain probes is positioned under the cover glass, between the cover glass and the frame, and is arranged to output a plurality of strain signals response to the one or more forces applied to the cover glass. A force processing module is configured to at least calculate an amount of force applied to the cover glass based on the plurality of strain signals.
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Citations
20 Claims
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1. An electronic device, comprising:
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a frame at least partially enclosing an interior of the electronic device, the frame having an open end; a cover glass covering the open end of the frame; a plurality of strain probes positioned under the cover glass, between the cover glass and the frame, and arranged to output a plurality of strain signals responsive to one or more forces applied to the electronic device; and a force processing module configured to at least calculate an amount of force applied to the electronic device based on the plurality of strain signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electronic device, comprising:
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a frame at least partially enclosing an interior of the electronic device; a cover glass connected to the frame; a set of strain probes positioned under the cover glass along a perimeter of the cover glass;
wherein;the set of strain probes comprise a first strain probe and a second strain probe connected by a first beam, and a third strain probe and a fourth strain probe connected by a second beam. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification