(51) Int. Cl.-0 GO2F L/335 (2006.01) This disclosure provides systems, methods and
apparatus for (52) US Cl a combined sensor device. In some implementations, a com USPG …

An optically transparent force sensor that may compensate for environmental effects,
including, for example, variations in temperature of the device or the Surroundings. In some …

4,065,649 4,243,861 4.279, 021 4,302,648 4,317,013 4.326, 193 4,365,130 4,492.829
4,527,021 4,559.426 4,577,822 4,588,187 4,607,147 4,651,133 4,735,394 4,890,832 …

Disclosed herein is an electronic device having a force sensing device. The force sensing
device receives a continuous force input which is translated into a discrete event. In order to …

Abstract Systems for detecting an amount and/or location of a force applied to a device using
a piezoelectric film are provided. One example system can include a transparent …

Abstract Systems and methods related to piezoelectric based force sensing in touch devices
are presented. One embodiment, for example, may take the form of an apparatus including a …

An object can depress an input device, such as, for example, a function button in an
electronic device. A resistive element having a mechanically resistive force can be disposed …

A biometric imager may comprise a plurality of sensor element traces formed in or on a
sensor substrate which may comprise at least a portion of a display screen defining a …

A device (48) for combined capacitance and pressure measurements includes a number of
first input/output terminals for a projected capacitance touch panel, wherein the projected …

An optically transparent force sensor element compares a force reading from a first strain-
sensitive film element with a second strain-sensitive film element, having a compliant and …