Determination of input from force sensing input device under an unbroken exterior portion of a device

A method comprising:

• determining magnitudes of an applied force at one or more of a plurality of touch zones of a force sensing resistor assembly;
• determining differentials between a first magnitude of the applied force at the one or more of the plurality of touch zones from a second magnitude from a different one of the one or more of the plurality of touch zones;
• summing the magnitudes from the plurality of touch zones to generate a summed magnitude of the applied force;
• determining that the summed magnitude of the applied force exceeds a threshold;
• based on the summed magnitude of the applied force exceeding the threshold, dynamically adjusting the threshold of the applied force at the plurality of touch zones;
• and
• based at least in part on the summed magnitude exceeding the threshold, designating the one or more of the plurality of touch zones as activated based at least in part on the determined differentials.

A device comprising:

• an unbroken portion of an exterior of the device, the unbroken portion comprising a structure having an exterior surface and an interior surface;
• one or more force sensing input devices proximate to at least a portion of the interior surface of the structure, each force sensing input device comprising one or more touch zones and each touch zone responsive to an incident force;
• a controller coupled to the one or more force sensing input devices, the controller configured to:
• determine that magnitudes of applied force at a plurality of touch zones;
• and
• based on the magnitudes of the applied force exceeding a first threshold, dynamically adjust the first threshold of an applied force at the plurality of touch zones;
• and
• activate one or more of the plurality of touch zones which correspond with the magnitudes of the applied force.