Patent ID: 8314771

Claim:
An operation control device used with an electronic apparatus and operable to control the functioning of a cursor on a display screen of said electronic apparatus, the operation control device comprising: a housing defining an accommodation chamber therein and an elongated slot on a top side thereof in communication with said accommodation chamber; a control module, said control module, comprising a carrier frame mounted in said accommodation chamber, said carrier frame comprising an end lug at each of two distal ends thereof, and a movable operating device, said movable operating device comprising an elongated base member connected between the two end lugs of said carrier frame and a sleeve sleeved on said elongated base member and suspending in said elongated slot of said housing and partially peripherally protruding over the top side of said housing for rotation on said elongated base member by a person; and a circuit module mounted in said accommodation chamber inside said housing, said circuit module comprising a microprocessor, a rotation sensor module mounted in said elongated base member and surrounded by said sleeve and electrically connected to said microprocessor and adapted for sensing the direction and amount of rotation of said sleeve relative to said elongated base member and producing a respective signal to said microprocessor.