INPUT DEVICE AND METHOD WITH PRESSURE-SENSITIVE LAYER
First Claim
1. An input device for sensing an input object in a sensing region, comprising:
- a plurality of sensor electrodes comprising;
a set of primary sensor electrodes; and
a set of secondary sensor electrodes, each of the primary sensor electrodes electrically coupled to at least one of the secondary sensor electrodes to form a set of admittances;
a touch surface; and
a pressure-sensitive layer located between the touch surface and the plurality of sensor electrodes, the pressure-sensitive layer configured to change at least one of the admittances in response to pressure applied to the touch surface.
3 Assignments
0 Petitions
Accused Products
Abstract
Devices and methods are provided that facilitate improved input device performance. Specifically, the devices and methods facilitate input using a pressure-sensitive layer whose electrical admittivity changes in response to pressure applied to a touch surface. An input device is provided that comprises a plurality of sensor electrodes including a set of primary sensor electrodes and a set of secondary sensor electrodes. Each primary sensor electrode is electrically coupled to at least one secondary sensor electrode to form a set of electrical admittances. In one embodiment, the pressure-sensitive layer is located between the sensor electrodes and the touch surface, such that changes in the admittivity of the pressure-sensitive layer in response to pressure on the touch surface cause corresponding changes in the admittances between the primary and secondary sensor electrodes.
223 Citations
39 Claims
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1. An input device for sensing an input object in a sensing region, comprising:
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a plurality of sensor electrodes comprising; a set of primary sensor electrodes; and a set of secondary sensor electrodes, each of the primary sensor electrodes electrically coupled to at least one of the secondary sensor electrodes to form a set of admittances; a touch surface; and a pressure-sensitive layer located between the touch surface and the plurality of sensor electrodes, the pressure-sensitive layer configured to change at least one of the admittances in response to pressure applied to the touch surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An input device for sensing an input object in a sensing region, comprising:
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a plurality of sensor electrodes comprising; a set of primary sensor electrodes; a set of secondary sensor electrodes, each of the primary sensor electrodes electrically coupled to at least one of the secondary sensor electrodes to form a set of elastive admittances; and a pressure-sensitive layer proximate to at least a portion of the plurality of sensor electrodes, the pressure-sensitive layer configured to change at least one of the elastive admittances in response to pressure applied to the pressure-sensitive layer. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for determining user input comprising:
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driving signals onto a set of primary sensor electrodes, wherein the set of primary sensor electrodes is a first part of a plurality of sensor electrodes; receiving signals with a set of secondary sensor electrodes, wherein the set of secondary sensor electrodes is a second part of the plurality of sensor electrodes, wherein each of the primary sensor electrodes is electrically coupled to at least one of the secondary sensor electrodes to form a set of admittances, and wherein a pressure-sensitive layer is located between a touch surface and the plurality of sensor electrodes, the pressure-sensitive layer configured to change at least one of the admittances in response to pressure applied to the pressure-sensitive layer by an input object on the touch surface; determining measures of the admittances from the signals received; determining positional information for the input object on the touch surface from the measures; and providing an output representative of the positional information. - View Dependent Claims (25, 26, 27, 28)
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29. A method for determining user input on a device comprising:
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driving signals onto a set of primary sensor electrodes, wherein the set of primary sensor electrodes is a first part of a plurality of sensor electrodes; receiving signals with a set of secondary sensor electrodes, wherein the set of secondary sensor electrodes is a second part of the plurality of sensor electrodes, wherein each of the primary sensor electrodes is electrically coupled to at least one of the secondary sensor electrodes to form a set of elastive admittances, and wherein a pressure-sensitive layer is proximate the plurality of sensor electrodes, the pressure-sensitive layer configured to change at least one of the elastive admittances in response to pressure applied to the pressure-sensitive layer by an input object; determining measures of the elastive admittances from the signals received; determining positional information for the input object in a sensing region from the measures; and providing an output representative of the positional information. - View Dependent Claims (30, 31, 32)
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33. A processing system configured to:
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drive signals onto a set of primary sensor electrodes, wherein the set of primary sensor electrodes is a first part of a plurality of sensor electrodes; receive signals with a set of secondary sensor electrodes, wherein the set of secondary sensor electrodes is a second part of the plurality of sensor electrodes, wherein each of the primary sensor electrodes is electrically coupled to at least one of the secondary sensor electrodes to form a set of admittances, and wherein a pressure-sensitive layer is located between a touch surface and the plurality of sensor electrodes, the pressure-sensitive layer configured to change at least one of the admittances in response to pressure applied to the pressure-sensitive layer by an input object on the touch surface; determine measures of the admittances from the signals received; determine positional information for the input object on the touch surface from the measures; and provide an output representative of the positional information. - View Dependent Claims (34, 35)
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36. A processing system configured to:
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drive signals onto a set of primary sensor electrodes, wherein the set of primary sensor electrodes is a first part of a plurality of sensor electrodes; receive signals with a set of secondary sensor electrodes, wherein the set of secondary sensor electrodes is a second part of the plurality of sensor electrodes, wherein each of the primary sensor electrodes is electrically coupled to at least one of the secondary sensor electrodes to form a set of elastive admittances, and wherein a pressure-sensitive layer is proximate the plurality of sensor electrodes, the pressure-sensitive layer configured to change at least one of the elastive admittances in response to pressure applied to the pressure-sensitive layer by an input object; determine measures of the elastive admittances from the signals received; determine positional information for the input object in a sensing region from the measures; and provide an output representative of the positional information. - View Dependent Claims (37, 38)
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39. An input device for sensing an input object in a sensing region, comprising:
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a touch surface; a set of at least one sensor electrode, wherein each of the sensor electrodes is configured to allow electrical coupling with the input object, thus forming a set of admittances; and a pressure-sensitive layer located between the touch surface and the sensor electrodes, the pressure-sensitive layer configured to change at least one of the admittances in response to pressure applied by the input object to the touch surface.
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Specification