12/27/2023 0 Comments Keyclick for surface 1The device of claim 1, further comprising a normal force sensor configured to measure the pressing force applied by the at least one appendage to the touch surface.ģ. A device for implementing a button click sensation on a touch surface without visually, audibly, or tactilely apparent motion of the surface, the device comprising: a touch surface a lateral vibration actuator configured to produce lateral vibrations of the touch surface a friction controller configured to modulate a friction force between the touch surface and a plurality of appendages of a user when in contact with the touch surface, wherein the friction force is localized to the plurality of appendages a touch sensing device configured to measure a location of the plurality of appendages on the touch surface and a control device configured to synchronize the friction force between the touch surface and at least one appendage of the plurality of appendages to the lateral vibrations produced by the lateral vibration actuator such that an average force on the at least one appendage is produced and the direction of the average force is controlled wherein the control device is further configured to apply a lateral force to the at least one appendage to emulate the sensation of a button click when the at least one appendage applies a pressing force to the touch surface that exceeds a threshold level.Ģ.
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