A remote controller has a sliding switch which has more than two contacting positions linearly disposed, and a sliding lever to switch among the contacting positions. A slider engaged with the sliding lever and the slider has an angle portion. A first cam piece has a first V-shaped notch to fit the angle...http://www.google.ca/patents/US7057122?utm_source=gb-gplus-sharePatent US7057122 - Multi-mode remote controller