Rear Force Sensor for Dual-Surface Pressure Input

The patent introduces a second force sensor on the rear surface of the device, adding a spatial dimension (front and back surfaces) to pressure input detection. This allows the device to recognize pressure inputs from both front and rear surfaces, expanding interaction possibilities without fundamentally redesigning the device structure.

The force sensors are configured to detect pressure inputs for multiple functions including but not limited to scrolling, selecting, and zooming operations. The same sensor system serves multiple interactive purposes, making the device structure universally applicable to various input scenarios without requiring separate dedicated sensors for each function.

The patent divides the pressure detection function into two separate force sensors: one on the front surface and one on the rear surface. Each sensor independently detects pressure inputs on its respective surface, allowing the system to process front and rear pressure inputs separately and execute different operations based on the input location, thereby managing complexity through functional segmentation.

The patent combines the front force sensor and rear force sensor into a unified pressure detection system that operates under common control logic. The processor integrates signals from both sensors to determine user intent and execute appropriate operations, merging the complexity of dual sensors into a coordinated system rather than treating them as separate independent subsystems.