Patent ID: 7429980

Claim:
An oscillation and rotation metric controller includes a scrolling wheel mechanism, an expansion base, a dancer, a permanent magnet, a Hall sensor, and a return structure; the scrolling wheel mechanism comprised of a scrolling wheel, a case covering up the scrolling wheel, and a knob-switch encoder; two bits extending from both sides of the encoder to be engaged to one side of a cover; a central pivot hole in the encoder connecting to a rolling shaft extending sideway from the scrolling wheel to control the encoder to generate rotation signal waveform; a pivot being each provided to a front and a rear of the scrolling wheel mechanism; both pivots striding over and moveably pivoted to respective locking slots disposed in the front and the rear expansion bases; the scrolling wheel mechanism moving longitudinally to touch a micro-switch provided below the expansion base; a dancer integrated with the pivots of the scrolling wheel mechanism, the dancer being connected below a pendulum, and a trough being provided in the pendulum to accommodate the permanent magnet; oscillation of the scrolling wheel mechanism synchronously driving the permanent magnet to generate oscillation signals of changed magnetic field to achieve oscillation metric control; the return structure being provided to where the dancer of the scrolling wheel mechanism is located; an elastic return stick being provided to the return structure and fixed to a key of a basic plate; and a guide channel provided on the basic plate leading the return stick to extend and penetrate through the dancer.