Abstract: An indirect haptic device includes a substrate having a top surface and a bottom surface, and a plurality of haptic electrodes and a plurality of island electrodes arranged on the top surface. The device further includes a plurality of transmit electrodes and a plurality of receive electrodes arranged on the bottom surface, a position sensor, and a friction modulator. The device further includes a control device configured to apply bipolar electrical signals to the plurality of transmit electrodes to detect touch locations of a user's appendage and to modulate the friction between the user's appendage and the touch surface. Each of the plurality of haptic electrodes are substantially aligned with and capacitively coupled to a corresponding two of the plurality of transmit electrodes.

Abstract: A haptic interface unit may include an application in the operating system of a device in communication with a driver layer. A plurality of sensors and actuators may be in communication with the driver layer. The driver layer analyzes information from the sensors to generate an output signal based on an interaction model stored in the driver layer. The application updates the interaction model in the driver layer.

Abstract: A haptic touch interface having simultaneous sensing and actuation including an insulating substrate having a front surface and a rear surface and one or more front surface electrodes connected to the front surface of the substrate, wherein the front surface electrodes are arranged in a first pattern. The touch interface further includes one or more rear surface electrodes connected to the rear surface of the substrate, wherein the rear surface electrodes are arranged in a second pattern and the front surface electrodes have a substantial mutual capacitance with the rear surface electrodes. Flying logic is used to control voltages applied to at least one of the front and rear surface electrodes.

Abstract: A haptic interface unit may include an application in the operating system of a device in communication with a driver layer. A plurality of sensors and actuators may be in communication with the driver layer. The driver layer analyzes information from the sensors to generate an output signal based on an interaction model stored in the driver layer. The application updates the interaction model in the driver layer.

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: Touch interface devices and methods for producing multi-point haptics utilizing simultaneous sensing and actuation are disclosed. In one configuration, one or more electrodes connected to a front surface of a substrate are arranged in a pattern and connected to an electronic controller configured to produce a haptic effect by applying one or more voltages to the electrodes, and measure the locations of one or more touch points by applying one or more voltages to the electrodes. In another configuration the electronic controller is configured to produce a haptic effect by applying positive and/or negative voltages to the electrodes, and measure the locations of one or more touch points by applying positive and/or negative voltages to the electrodes. Also disclosed is a method for using a single set of electrodes on a substrate of a touch interface to simultaneously produce haptic effects on the substrate and measure finger locations relative to the substrate.