Multi-touch pad controller

摘要

A highly configurable controller is described that includes a number of different types of control mechanisms that emulate a wide variety of conventional control mechanisms using pressure and location sensitive sensors that generate high-density control information which may be mapped to the controls of a wide variety of devices and software.

主权项

1. A sensor configured to generate sensor signals representing one or more touch events on a surface associated with the sensor, the sensor comprising a one-dimensional array of conductive traces, first ones of the conductive traces being connected to a voltage reference, and second ones of the conductive traces being configured to receive sequential drive signals, at least some of the first and second conductive traces being connected to one or more resistive elements, the sensor also comprising a piezoresistive material adjacent the first and second conductive traces, wherein the piezoresistive material, the first and second conductive traces, and the one or more resistive elements are configured to form voltage dividers, the voltage dividers being configured to generate the sensor signals responsive to the one or more touch events when the second conductive traces are driven by the sequential drive signals, the sensor also comprising sensor circuitry configured drive the second conductive traces with the sequential drive signals, and to generate control information from the sensor signals, the control information including a representation of one-dimensional motion of an object in contact with the surface of the sensor.