Importance

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Abstract

Systems and methods for removing electrical noise from an input signal from a touchpad device are provided. The touchpad device and one or more sensors may be coupled to a frame. Mechanical vibrations resulting from contact with a surface of the touchpad device during a motion input to the touchpad device may propagate via the frame to the one or more sensors. Information from the input signal and mechanical vibration signals received by one or more sensors may be processed to remove the electric noise from the input signal. In one example, information associated with relative motion of the input may be determined based on varying intensities of mechanical vibration signals received from the one or more sensors. Information of the input signal and the information associated with the relative motion may be correlated to determine position and/or movement information associated with the motion input.

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First Claim