Piezoelectric button system

A push button system for an electronic device comprising:

• a piezoelectric assembly comprising:
• a piezoelectric element configured to produce a haptic response when an electric haptic activation signal is applied thereto;
• a support substrate configured for supporting the piezoelectric element, the support substrate and the piezoelectric element forming a composite beam, including a transverse central axis, the composite beam mounted in a cavity in an outer frame of the electronic device;
• a first sensor configured for measuring a first force or strain on one side of the transverse central axis in response to a force application by a user, and for generating a first electrical response signal in response thereto;
• and
• a second sensor for measuring a second force or strain on an opposite side of the transverse central axis in response to the force application, and for generating a second electrical response signal in response thereto;
• a button configured to pivot and reciprocate in the outer frame of the electronic device, the button including:
• a lateral central axis:
• a first pedestal extending from a lower surface on one side of the lateral central lateral axis for contacting the piezoelectric assembly;
• and
• a second pedestal extending from the lower surface on an opposite side of the lateral central lateral axis for contacting the piezoelectric assembly;
• a controller;
• and
• memory for storing computer software, which when executed by the controller utilizes the first electrical response signal and the second electrical response signal to determine a location of the force application by the user on the button.