Feedback for grounding independent haptic electrovibration
First Claim
Patent Images
1. A method of providing tactile feedback, comprising:
- applying a haptic signal to a set of electrodes in a device;
detecting, at a touch-sensitive screen of the device, a touch input;
determining a displacement current from the touch input to the set of electrodes, the displacement current being an effect of an amplitude of the haptic signal and being based on a charge and discharge rate between a two parallel-plate capacitor, and the two-parallel plate capacitor being defined by the touch input and the set of electrodes; and
modifying the haptic signal based on the determined displacement current.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus for providing tactile feedback is provided. The apparatus includes a touch-sensitive screen that detects a touch input and a set of electrodes. The apparatus also includes a haptic voltage signal generator that applies a haptic signal to the set of electrodes and modifies the haptic signal based on a displacement current from the touch input to the set of electrodes. The apparatus also includes a haptic feedback controller that determines the displacement current, where the displacement current is an effect of an amplitude of the haptic signal.
-
Citations
28 Claims
-
1. A method of providing tactile feedback, comprising:
-
applying a haptic signal to a set of electrodes in a device; detecting, at a touch-sensitive screen of the device, a touch input; determining a displacement current from the touch input to the set of electrodes, the displacement current being an effect of an amplitude of the haptic signal and being based on a charge and discharge rate between a two parallel-plate capacitor, and the two-parallel plate capacitor being defined by the touch input and the set of electrodes; and modifying the haptic signal based on the determined displacement current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. An apparatus for providing tactile feedback, comprising:
-
a touch-sensitive screen that detects a touch input; a set of electrodes; a haptic voltage signal generator that applies a haptic signal to the set of electrodes and modifies the haptic signal based on a displacement current from the touch input to the set of electrodes; and a haptic feedback controller that determines the displacement current, wherein the displacement current is an effect of an amplitude of the haptic signal and is based on a charge and discharge rate between a two parallel-plate capacitor, and wherein the two-parallel plate capacitor is defined by the touch input and the set of electrodes. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. An apparatus for providing tactile feedback, comprising:
-
means for applying a haptic signal to a set of electrodes in a device; means for detecting a touch input; means for determining a displacement current from the touch input to the set of electrodes, the displacement current being an effect of an amplitude of the haptic signal and being based on a charge and discharge rate between a two parallel-plate capacitor, and the two-parallel plate capacitor being defined by the touch input and the set of electrodes; and means for modifying the haptic signal based on the determined displacement current.
-
-
28. A computer program product in a device, comprising:
-
a non-transitory computer-readable medium comprising code for; applying a haptic signal to a set of electrodes in a device; detecting a touch input; determining a displacement current from the touch input to the set of electrodes, the displacement current being an effect of an amplitude of the haptic signal and being based on a charge and discharge rate between a two parallel-plate capacitor, and the two-parallel plate capacitor being defined by the touch input and the set of electrodes; and modifying the haptic signal based on the determined displacement current.
-
Specification