DEVICE AND METHOD FOR SOLID STATE CAPACITIVE SCROLLING
First Claim
1. A touch sensor system, comprising:
- a touch sensor configured to sense an object along an axis; and
a processor in operative communication with the touch sensor, the processor configured to generate a scrolling signal responsive to sensing motion of the object along the axis, the processor further configured to cease the scrolling signal, without substantially continuing the scrolling signal, responsive to the object being substantially stationary prior to the object lifting from the touch sensor, wherein the processor is further configured to continue the scrolling signal after lifting off of the object from the touch sensor responsive to sensing object motion immediately prior to the object lifting off the touch sensor.
2 Assignments
0 Petitions
Accused Products
Abstract
A capacitive sensing device and method include a touch surface, a capacitive touch sensor coupled to the touch surface and configured to measure finger motion along the touch surface, and a processor in operative communication with the capacitive touch sensor. The processor is configured to generate a scrolling command in response to finger motion along the touch surface, cease the scrolling command without substantially continuing generating the scrolling command upon the finger lifting from the touch surface when the finger is stationary prior to lifting from the touch surface, and continue generating the scrolling command for a time after the finger lifting from the touch surface to emulate coasting responsive to finger motion prior the finger lifting.
-
Citations
20 Claims
-
1. A touch sensor system, comprising:
-
a touch sensor configured to sense an object along an axis; and a processor in operative communication with the touch sensor, the processor configured to generate a scrolling signal responsive to sensing motion of the object along the axis, the processor further configured to cease the scrolling signal, without substantially continuing the scrolling signal, responsive to the object being substantially stationary prior to the object lifting from the touch sensor, wherein the processor is further configured to continue the scrolling signal after lifting off of the object from the touch sensor responsive to sensing object motion immediately prior to the object lifting off the touch sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for scrolling on a capacitive sensing device of the type including a scroll surface and a capacitive sensor coupled to the scroll surface and configured to measure finger motion, the method comprising:
-
generating a scrolling command in response to finger motion at the scroll surface; ceasing the scrolling command without substantially continuing generating the scrolling command upon the finger lifting from the scroll surface when the finger is stationary immediately prior to lifting from the scroll surface; and continuing to generate the scrolling command after the finger lifts from the touch surface responsive to finger motion on the scroll surface immediately prior to lifting. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
-
18. A processing system for use with a capacitive sensor of the type configured to sense a finger along an axis, the processing system configured to:
-
generate scrolling in response to finger motion along the axis; cease the scrolling, without substantially continuing the scrolling, responsive to the finger being substantially stationary immediately prior to lifting from the capacitive sensor; and continue generating scrolling after the finger lifts from the capacitive sensor to emulate coasting when the finger lift is preceded by finger motion substantially along the axis. - View Dependent Claims (19, 20)
-
Specification