Object position detector with edge motion feature and gesture recognition
AssigneeSynaptics Incorporated
InventorsDavid W. Gillespie, Timothy P. Allen, Ralph C. Wolf, Shawn P. Day
Life of this patent
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Abstract
Methods for recognizing gestures made by a conductive object on a touch-sensor pad are disclosed. Tapping, pushing, hopping, and zigzag gestures are recognized by analyzing the position, pressure, and movement of the conductive object on the sensor pad during the time of a suspected gesture, and signals are sent to a host indicating the occurrence of these gestures. Signals for compensating for unintended motion of the conductive object on the touch-sensor pad during the gestures are also sent to the host.
Claims7
A method for recognizing a tap gesture made on a touch-sensor pad in a touch sensing system providing X and Y position information to a host, including:
- detecting a presence of a conductive object on the touch-sensor pad;
- comparing the amount of time said conductive object is present on said touch pad with a reference amount of time;
- comparing the amount of motion made by said conductive object while it is present on said touch pad with a reference amount of motion;
- initiating a signal to the host indicating the occurrence of said tap gesture if the amount of time said conductive object is present on said touch pad is less than said reference amount of time and if the amount of motion made by said conductive object while it is present on said touch pad is less than said reference amount of motion;
- and
- maintaining said signal for a predetermined period of time.
A method for recognizing a tap gesture made on a touch-sensor pad in a touch sensing system providing X and Y position information to a host, including:
- detecting the occurrence of a tap gesture made by a tapping object on the touch-sensor pad;
- detecting in which of at least one corner of the touch-sensor pad said tap gesture occurred;
- and
- sending a signal to the host indicating the occurrence of said tap gesture and in which of at least one corner of said touch-sensor pad said tap gesture occurred.
A method for recognizing a tap gesture made on a touch-sensor pad in a touch sensing system providing X and Y position information to a host, including the steps of:
- detecting a presence of a conductive object on the touch-sensor pad;
- comparing the amount of time said conductive object is present on said touch pad with a reference amount of time;
- comparing the amount of motion made by said conductive object while it is present on said touch pad with a reference amount of motion;
- initiating a signal to the host indicating the occurrence of said tap gesture if the amount of time said conductive object is present on said touch pad is less than said reference amount of time and if the amount of motion made by said conductive object while it is present on said touch pad is less than said reference amount of motion, and maintaining said signal for a predetermined period of time;
- and
- sending X and Y position information to said host to substantially cancel out any unintended lateral motion of said tapping object on said touch-sensor pad during said tap gesture.
Dependencies are inferred from the claim text.