A MULTI-TOUCH SENSOR PAD INPUT DEVICE

摘要

This invention relates to an input device for computers and other electronic equipment that can detect the presence, location and force of multiple contacts applied to the active surface of the input device. The invention comprises a multi-touch sensor pad input device that includes an array of regularly spaced apart transducers, a contact pad extending over this array, and a sampling and measuring circuit to detect and measure the time, location of application and magnitude of the applied force to each transducer.