Force-detecting input structure
First Claim
Patent Images
1. An electronic device, comprising:
- a housing;
a collar, coupled to the housing, comprising;
a moveable conductor; and
a conductive element; and
a crown, comprising;
a cap; and
a shaft positioned partially within an aperture defined by the collar and attached to the cap;
wherein;
the movable conductor and the conductive element are separated by a distance; and
movement of the shaft in response to an input force on the cap reduces the distance, thereby changing a capacitance between the moveable conductor and the conductive element.
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Abstract
An input mechanism, such as a crown, detects amounts of applied force. In various examples, an assembly including an input mechanism has an enclosure; a stem coupled to the enclosure such that the stem is rotatable, translatable, and transversely moveable with respect to the enclosure; a sensor, coupled between the stem and the housing, to which force is transferred when the stem moves with respect to the housing; and a processing unit coupled to the sensor. The processing unit is operable to determine a measurement of the force, based on a signal from the sensor.
358 Citations
20 Claims
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1. An electronic device, comprising:
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a housing; a collar, coupled to the housing, comprising; a moveable conductor; and a conductive element; and a crown, comprising; a cap; and a shaft positioned partially within an aperture defined by the collar and attached to the cap; wherein; the movable conductor and the conductive element are separated by a distance; and movement of the shaft in response to an input force on the cap reduces the distance, thereby changing a capacitance between the moveable conductor and the conductive element. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A crown assembly, comprising:
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an enclosure; a stem coupled to the enclosure, such that the stem is; rotatable with respect to the enclosure; translatable with respect to the enclosure; and transversely moveable with respect to the enclosure; a sensor, coupled between the stem and the enclosure, the stem configured to compress the sensor when the stem moves transversely with respect to the enclosure; and a processing unit, coupled to the sensor, operable to determine a measurement of the force, based on a signal from the sensor. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. An electronic device, comprising:
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a body; a coupler positioned at least partially within the body; a crown, connected to the coupler, and operable to move with respect to the body; a capacitive sensor coupled to the crown, and configured to deform in response to a force being applied to the crown; and a processing unit operable to ascertain an amount of the force based on a change in a capacitance of the capacitive sensor. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification