Patent ID: 8184095

Claim:
A control device, comprising: a housing, said housing defining an accommodation chamber and at least one opening in communication between said accommodation chamber and the space outside said housing; a control module, said control module comprising a movable member movable relative to the at least one opening of said housing, said movable member comprising a magnet located on each of two distal ends thereof; and a circuit module mounted in said accommodation chamber inside said housing, said circuit module comprising a microprocessor, a rotation sensor module electrically connected to said microprocessor and adapted for sensing rotation of at least one part of said movable member relative to said housing and producing a respective control signal, and a magnetic sensor module electrically connected to said microprocessor and adapted for sensing the strength of the magnetic field emitted by each said magnet of said movable member indicative of the direction and amount of a linear displacement of said movable member relative to said housing and producing a respective control signal.