Touch rejection
First Claim
Patent Images
1. An electronic device, comprising:
- a touch sensing surface; and
a processor coupled to the touch sensing surface, the processor configured to;
identify a plurality of touches from a touch image of one or more objects proximate to the touch sensing surface, wherein each of the plurality of touches has a first centroid;
weight the plurality of identified touches;
determine a second centroid of the plurality of weighted touches;
define an area around the second centroid of the plurality of weighted touches; and
reject touches within the area.
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Abstract
The rejection of undesired touch events on a touch surface is disclosed. A weighted meta-centroid of all touch events can be computed. In some examples, touches can be weighted inversely to their size and distance to the nearest neighboring touch. In some examples, touches can be weighted based on the size of their minor radii. A meta-ellipse can be fit to the weighted touch events. In some examples, the major axis of the meta-ellipse can be used to determine the orientation of a user'"'"'s hand to reject undesired touches. In other examples, touches within the meta-ellipse can be rejected.
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Citations
27 Claims
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1. An electronic device, comprising:
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a touch sensing surface; and a processor coupled to the touch sensing surface, the processor configured to; identify a plurality of touches from a touch image of one or more objects proximate to the touch sensing surface, wherein each of the plurality of touches has a first centroid; weight the plurality of identified touches; determine a second centroid of the plurality of weighted touches; define an area around the second centroid of the plurality of weighted touches; and reject touches within the area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for rejecting one or more touches on a touch sensing surface, the method comprising:
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identifying a plurality of touches from a touch image of one or more objects proximate to the touch sensing surface, wherein each of the plurality of touches has a first centroid; weighting the plurality of identified touches; determining a second centroid of the plurality of weighted touches; defining an area around the second centroid of the plurality of weighted touches; and rejecting touches within the area. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A non-transitory computer readable medium, the computer readable medium including instructions that, when executed by one or more processors, perform a method for rejecting touches on a touch sensing surface, the method comprising:
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identifying a plurality of touches from a touch image of one or more objects proximate to the touch sensing surface, wherein each of the plurality of touches has a first centroid; weighting the plurality of identified touches; determining a second centroid of the plurality of weighted touches; defining an area around the second centroid of the plurality of weighted touches; and rejecting touches within the area. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification