| Immersion Corp., San Jose, CA, has introduced TouchSense® touch-feedback technology for touchscreens that enables users to perceive that buttons actually depress and release, rather than feeling a flat, hard, unresponsive touchscreen surface. The tactile information conveyed is similar to clicking a computer mouse, pushing a button, or depressing a switch. The technology incorporates actuators, controllers, haptic effect authoring software,and application programming interfaces. When a user touches the screen, an analog signal is sent to the touchscreen controller, which supplies information on the screen location where contact was made. The information is sent to the host application, which commands the haptic controller to play a specific vibro-tactile effect corresponding to the user’s selection. The technology can be used with any type of touchscreen, including capacitive, infrared, resistive, and surface acoustic wave, in applications such as automotive, medical simulation equipment,rotary controls, and human-machine interfaces.
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