OBJECT POSITION DETECTOR WITH EDGE MOTION FEATURE AND GESTURE RECOGNITION
First Claim
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1. A method for responding to a multiple-presence gesture, the method comprising:
- detecting a first presence of an object at a first position on the touch-sensor;
detecting a second presence of an object at a second position on the touch-sensor, the second presence of an object occurring a first elapsed time after an end of the first presence;
comparing the first elapsed time with a first reference amount of time;
comparing a distance between the first position and the second position with a reference distance; and
initiating a multi-presence gesture signal indicating an occurrence of a multiple-presence gesture responsive to each of a set of criteria being met, the set of criteria comprising the first elapsed time being less than the first reference amount of time and the distance between the first position and the second position being greater than the reference distance.
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Abstract
A method of generating a signal comprising providing a capacitive touch sensor pad including a matrix of X and Y conductors, developing capacitance profiles in one of an X direction and a Y direction from the matrix of X and Y conductors, determining an occurrence of a single gesture through an examination of the capacitance profiles, the single gesture including an application of at least two objects on the capacitive touch sensor pad, and generating a signal indicating the occurrence of the single gesture.
117 Citations
24 Claims
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1. A method for responding to a multiple-presence gesture, the method comprising:
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detecting a first presence of an object at a first position on the touch-sensor;
detecting a second presence of an object at a second position on the touch-sensor, the second presence of an object occurring a first elapsed time after an end of the first presence;
comparing the first elapsed time with a first reference amount of time;
comparing a distance between the first position and the second position with a reference distance; and
initiating a multi-presence gesture signal indicating an occurrence of a multiple-presence gesture responsive to each of a set of criteria being met, the set of criteria comprising the first elapsed time being less than the first reference amount of time and the distance between the first position and the second position being greater than the reference distance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A touch-sensor comprising:
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a substrate;
a plurality of sensor electrodes disposed on the substrate, the plurality of sensor electrodes configured to sense an object proximate to the plurality of sensor electrodes;
a processor coupled to the plurality of sensor electrodes, the processor configured to;
detect a first object presence at a first position on the touch-sensor;
detect a second object presence at a second position on the touch-sensor, the second object presence detectable a first elapsed time after an end of the first object presence, compare the first elapsed time with a first reference amount of time;
compare a distance between the first position and the second position with a reference distance; and
initiate a gesture signal indicating an occurrence of a multiple-presence gesture responsive to each of a set of criteria being met, the set of criteria comprising the first elapsed time being less than the first reference amount of time and the distance between the first position and the second position being greater than the reference distance. - View Dependent Claims (14, 15)
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16. A method for using a capacitive touch-sensor having a plurality of sensor electrodes configured to sense an object proximate to the plurality of sensor electrodes, the method comprising:
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repeatedly receiving signals from the plurality of sensor electrodes;
repeatedly developing sensor profiles using the signals;
repeatedly deriving Z values using the sensor profiles, the Z values indicative of changes in capacitance sensed due to capacitive coupling between an object and the plurality of sensor electrodes;
providing positional information representing motion of the object on the touch-sensor from a first time to a second time, wherein the first time is associated with a first Z value being on one side of a first threshold and the second time is associated with a second Z value being on an opposite side of the first threshold; and
initiating the gesture signal indicating an occurrence of the gesture after the second time. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A touch-sensor comprising:
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a substrate;
a plurality of sensor electrodes disposed on the substrate, the plurality of sensor electrodes configured to sense an object proximate to the plurality of sensor electrodes, a processor coupled to the plurality of sensor electrodes, the processor configured to;
repeatedly receive a set of signals from the plurality of sensor electrodes;
repeatedly develop a set of sensor profiles using the first set of signals;
repeatedly derive Z values using the set of sensor profiles, the set of Z values indicative of changes in capacitance sensed due to capacitive coupling between an object and the plurality of sensor electrodes;
from a first time associated with a first Z value is on one side of a first threshold until a second time later than the first associated with a second Z value is on an opposite side of the first threshold, wherein all Z values associated with times between the first time and second time are all past a reference Z value, provide positional information representing motion of the object on the touch-sensor; and
after the second time where the second Z value is on the opposite side of the first threshold, initiate a gesture signal indicating an occurrence of the gesture. - View Dependent Claims (23, 24)
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Specification