Abstract: A device including a body configured to be grasped by a user's hand and a touch surface oriented on a first surface of the body, wherein the touch surface is configured to be engaged by an appendage of the user's hand when the body is grasped by the user's hand. The device also includes a friction modulator associated with the touch surface, wherein the friction modulator is configured to modulate a coefficient of friction between the user's appendage and the touch surface to provide haptic feedback.

Abstract: A device including a body configured to be grasped by a user's hand and a touch surface oriented on a first surface of the body, wherein the touch surface is configured to be engaged by an appendage of the user's hand when the body is grasped by the user's hand. The device also includes a friction modulator associated with the touch surface, wherein the friction modulator is configured to modulate a coefficient of friction between the user's appendage and the touch surface to provide haptic feedback.

Abstract: A device including a body configured to be grasped by a user's hand and a touch surface oriented on a first surface of the body, wherein the touch surface is configured to be engaged by an appendage of the user's hand when the body is grasped by the user's hand. The device also includes a friction modulator associated with the touch surface, wherein the friction modulator is configured to modulate a coefficient of friction between the user's appendage and the touch surface to provide haptic feedback.

Abstract: A device including a body configured to be grasped by a user's hand and a touch surface oriented on a first surface of the body, wherein the touch surface is configured to be engaged by an appendage of the user's hand when the body is grasped by the user's hand. The device also includes a friction modulator associated with the touch surface, wherein the friction modulator is configured to modulate a coefficient of friction between the user's appendage and the touch surface to provide haptic feedback.

Abstract: A device including a body configured to be grasped by a user's hand and a touch surface oriented on a first surface of the body, wherein the touch surface is configured to be engaged by an appendage of the user's hand when the body is grasped by the user's hand. The device also includes a friction modulator associated with the touch surface, wherein the friction modulator is configured to modulate a coefficient of friction between the user's appendage and the touch surface to provide haptic feedback.

Abstract: A method of creating a haptic effect on a touch surface, the method including the steps of detecting a location of a first appendage and a second appendage on a touch surface, applying a mechanical force to the first and second appendages at the detected locations on the touch surface, modulating the amplitude of the mechanical force to adjust a friction force applied to the first appendage and second appendage to simulate a texture.

Abstract: A haptic touch screen including a lower layer including a plurality of control electrodes, an upper layer including a plurality of haptic electrodes, a middle layer between the lower layer and upper layer, where the haptic electrodes are not conductively connected to control electronics.

Abstract: A device including a body configured to be grasped by a user's hand and a touch surface oriented on a first surface of the body, wherein the touch surface is configured to be engaged by an appendage of the user's hand when the body is grasped by the user's hand. The device also includes a friction modulator associated with the touch surface, wherein the friction modulator is configured to modulate a coefficient of friction between the user's appendage and the touch surface to provide haptic feedback.

Abstract: A touch interface device comprising a touch surface, a first electrode coupled with the touch surface, a second electrode coupled with the touch surface, where when an appendage of an operator touches the touch surface above both the first electrode and the second electrode a first actuation electrical potential from the first electrode and a second actuation electric potential from the second electrode establish electric fields that pass from one of the first and second electrodes directly through the outermost layer of the appendage and return to the other of the first and second electrodes via the outermost layer of the appendage.

Abstract: A method of creating a haptic effect on a touch surface, the method including the steps of detecting a location of a first appendage and a second appendage on a touch surface, applying a mechanical force to the first and second appendages at the detected locations on the touch surface, modulating the amplitude of the mechanical force to adjust a friction force applied to the first appendage and second appendage to simulate a texture.

Abstract: A method of creating a haptic effect on a touch surface, the method including the steps of detecting a location of a first appendage and a second appendage on a touch surface, applying a mechanical force to the first and second appendages at the detected locations on the touch surface, modulating the amplitude of the mechanical force to adjust a friction force applied to the first appendage and second appendage to simulate a texture.

Abstract: A touch interface device includes a touch surface configured to be engaged by an object, first and second actuator assemblies operably connected to the touch surface, and a controller operably connected with the first and second actuator assemblies. The first actuator assembly displaces the touch surface in one or more lateral directions along the touch surface at a first frequency. The second actuator assembly displaces the touch surface in an angled direction that is one of at least obliquely or perpendicularly angled to the touch surface at a second frequency. The controller operates the first and second actuator assemblies so that the touch surface varies in engagement with the object to impart a force on the object that is along the touch surface.

Abstract: A method of imitating a texture on a touch surface, the method including the steps of sensing a position of a user's finger on the touch surface, modulating a coefficient of friction of the touch surface in response to the sensed position of a user's appendage relative to the touch surface and/or a derivative thereof, where the friction modulator does not alter the contour of the touch surface in a manner that is perceptible to a user's sight or touch.

Abstract: A method of creating a haptic effect on a touch surface, the method including the steps of detecting a location of a first appendage and a second appendage on a touch surface, applying a mechanical force to the first and second appendages at the detected locations on the touch surface, modulating the amplitude of the mechanical force to adjust a friction force applied to the first appendage and second appendage to simulate a texture.

Abstract: A method of imitating a texture on a touch surface, the method including the steps of sensing a position of a user's finger on the touch surface, modulating a coefficient of friction of the touch surface in response to the sensed position of a user's appendage relative to the touch surface and/or a derivative thereof, where the friction modulator does not alter the contour of the touch surface in a manner that is perceptible to a user's sight or touch.

Abstract: A haptic touch screen including a lower layer including a plurality of control electrodes, an upper layer including a plurality of haptic electrodes, a middle layer between the lower layer and upper layer, where the haptic electrodes are not conductively connected to control electronics.

Abstract: An indirect haptic device having a substrate having a touch surface, a position sensor of a user's clothed appendage relative to the touch surface, a friction modulator associated with the substrate, a control device connected to the position sensor and the friction modulator, wherein a coefficient of friction on the touch surface is modulated in response to a sensed position of a user's clothed appendage relative to the touch surface and/or a derivative thereof.

Abstract: A haptic device comprising a substrate having a surface, a first actuator that modulates a friction experienced by a user's finger touching the substrate surface, a second actuator that oscillates the substrate surface laterally, such that the combined effect of the first and second actuator is a net shear force applied to the user's finger, a finger position sensor that detects and measures location of the user's finger relative to the substrate surface, and a control device that receives at least one parameter related to the location of the user's finger and controls the first actuator and second actuator to simulate the feel of a shape different from that of the substrate.

Abstract: A haptic device includes a substrate that is subjected to lateral motion such as lateral oscillation with one or more degrees of freedom together with modulation of a friction reducing oscillation in a manner that can create a shear force on the user's finger or on an object on the device.

Abstract: An indirect haptic device having a substrate having a touch surface, a position sensor of a user's clothed appendage relative to the touch surface, a friction modulator associated with the substrate, a control device connected to the position sensor and the friction modulator, wherein a coefficient of friction on the touch surface is modulated in response to a sensed position of a user's clothed appendage relative to the touch surface and/or a derivative thereof.