Concurrent signal detection for touch and hover sensing
First Claim
1. A touch and hover sensing device comprising:
- a touch sensor panel comprising a plurality of sensor partitions configured to detect objects touching the device and objects hovering over the device, each sensor partition comprising at least one sensor; and
a touch and hover control system configured to;
measure a first capacitance at a first sensor partition of the plurality of sensor partitions;
determine whether the first capacitance exceeds a predetermined threshold value;
in accordance with a determination that the first capacitance exceeds the predetermined threshold value, operate the first sensor partition in a mutual capacitance sensing mode;
measure a second capacitance at a second sensor partition of the plurality of sensor partitions;
determine whether the second capacitance exceeds the predetermined threshold value; and
in accordance with a determination that the second capacitance does not exceed the predetermined threshold value, operate the second sensor partition in a self-capacitance sensing mode.
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Accused Products
Abstract
Detecting a signal from a touch and hover sensing device, in which the signal can be indicative of concurrent touch events and/or hover events, is disclosed. A touch event can indicate an object touching the device. A hover event can indicate an object hovering over the device. The touch and hover sensing device can ensure that a desired hover event is not masked by an incidental touch event, e.g., a hand holding the device, by compensating for the touch event in the detected signal that represents both events. Conversely, when both a hover event and a touch event are desired, the touch and hover sensing device can ensure that both events are detected by adjusting the device sensors and/or the detected signal. The touch and hover sensing device can also detect concurrent hover events by identifying multiple peaks in the detected signal, each peak corresponding to a position of a hovering object.
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Citations
15 Claims
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1. A touch and hover sensing device comprising:
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a touch sensor panel comprising a plurality of sensor partitions configured to detect objects touching the device and objects hovering over the device, each sensor partition comprising at least one sensor; and a touch and hover control system configured to; measure a first capacitance at a first sensor partition of the plurality of sensor partitions; determine whether the first capacitance exceeds a predetermined threshold value; in accordance with a determination that the first capacitance exceeds the predetermined threshold value, operate the first sensor partition in a mutual capacitance sensing mode; measure a second capacitance at a second sensor partition of the plurality of sensor partitions; determine whether the second capacitance exceeds the predetermined threshold value; and in accordance with a determination that the second capacitance does not exceed the predetermined threshold value, operate the second sensor partition in a self-capacitance sensing mode. - View Dependent Claims (2, 3, 4, 5)
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6. A method comprising:
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measuring a first capacitance at a first sensor partition of a plurality of sensor partitions of a touch sensor panel; determining whether the first capacitance exceeds a predetermined threshold value; in accordance with a determination that the first capacitance exceeds the predetermined threshold value, operating the first sensor partition in a mutual capacitance sensing mode; measuring a second capacitance at a second sensor partition of the plurality of sensor partitions of the touch sensor panel; determining whether the second capacitance exceeds the predetermined threshold value; and in accordance with a determination that the second capacitance does not exceed the predetermined threshold value, operating the second partition in a self-capacitance sensing mode. - View Dependent Claims (7, 8, 9, 10)
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11. A non-transitory computer-readable storage medium having stored therein instructions, which when executed by a processor, cause the processor to perform a method comprising:
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measuring a first capacitance at a first sensor partition of a plurality of sensor partitions; determining whether the first capacitance exceeds a predetermined threshold value; in accordance with a determination that the first capacitance exceeds the predetermined threshold value, operating the first sensor partition in a mutual capacitance sensing mode; measuring a second capacitance at a second sensor partition of the plurality of sensor partitions; determining whether the second capacitance exceeds the predetermined threshold value; and in accordance with a determination that the second capacitance does not exceed the predetermined threshold value, operating the second partition in a self-capacitance sensing mode. - View Dependent Claims (12, 13, 14, 15)
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Specification