Ultra Low Travel Keyboard
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Abstract
A keyboard or keyboard key that has a force sensor that measures the force imparted to the key when a user presses the key or rests a finger on a key. Key embodiments may also include an actuator that excites the in order to provide feedback to the user in accordance with various feedback methods disclosed herein.
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Citations
40 Claims
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1-20. -20. (canceled)
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21. A keyboard key, comprising:
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a key cap; and a force sensor coupled to an interior surface of the key cap, comprising; a first conductive plate; a second conductive plate; and a compressible dielectric separating the first and second conductive plates; wherein compression of the compressible dielectric material changes a capacitance of the force sensor and a voltage modulated by the force sensor based on the capacitance indicates a force within a range of forces applied to the key cap. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A key for a computing device keyboard, comprising:
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a key cap defining an internal area; a first conductive plate fitted at least partially within the internal area of the key cap; a dielectric coupled to the first conductive plate; and a second conductive plate coupled to the dielectric material; wherein a change in proximity between the first and second conductive plates indicates a force within a range of forces applied to the key cap. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. An input device, comprising:
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a cap defining an interior; a first conductive plate bonded to the interior of the cap; a compressible dielectric coupled to the first conductive plate; and a second conductive plate coupled to the compressible dielectric; wherein; compression of the compressible dielectric changes a capacitance between the first and second conductive plates; and the input device determines a velocity with which the cap was pressed based on the capacitance. - View Dependent Claims (36, 37, 38, 39, 40)
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Specification