Open Cycle Haptics

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Open cycle haptic output devices carry tactile output to players to reflect a game's state. Open cycle haptics differ from closed cycle haptics in that an open cycle haptic device simply provides output. Closed cycle devices also accept tactile input. Open cycle haptics commonly appear in contemporary game consoles in the form of controller rumble. While players provide input through the gamepad, it is the gamepad as a whole that rumbles and shakes, not the individual input devices that make up the gamepad. Braille displays used by visually impaired computer users are another form of open cycle haptic device, as they provide output from the computer, but don't receive input.