The aim of the invention is to develop a device for detecting and processing input pulses induced by a mechanical actuation of an input element, which is spring-suspended inside a plane and which can be actuated out of this plane both in a vertical direction as well as in a direction that is diagonal...http://www.google.com.au/patents/US20060131156?utm_source=gb-gplus-sharePatent US20060131156 - Device for detecting a mechanical actuation of an input element by using digital technology, and method for processing and converting the digital input signal into commands for controlling a load
