Patent attributes
Systems and methods of creating a touch sensitive surface structure comprising a piezo structure in communication with a deformable surface such that the piezo structure, or any suitable pressure sensing device, is capable of sensing pressure from a touch upon the deformable surface and communicating that pressure signal to an actuating circuit. The actuating circuit, upon receiving a suitable pressure signal, sends a piezo actuating signal to the piezo structure. The piezo structure, upon receiving the piezo actuating signal, is capable of communicating a mechanical signal to the deformable surface, sufficient for a person's finger to feel a “click” and/or haptic sensation. In one embodiment, the piezo actuating signal comprises a first slow charging portion and a second fast discharging portion, sufficient for the piezo structure to communicate the click and/or haptic sensation.
