Watson, Cole, Grindle & Watson
Disk driving system
 An improved disk driving system for selectively driving one of the compact disk and the video disk is provided with respect to an optic pickup. A compact disk driving motor and a video disk driving motor are installed in line by the respective suitable motor fixing means at the opposite sides of the pick up in a longitudinal axis of a pickup carriage. A driven pinion engaged with the rack of one slider member of said pickup carriage is coupled to the shaft of the first potentiometer for generating a pickup positioning signal upon video disk tracking. A follower gear engaged with said driven pinion is coupled to the shaft of the second potentiometer for generating a pickup positioning signal upon compact disk tracking. The above, different pickup positioning signals are alternatively occurred. 
Sam Sung Electronics Co., Ltd.
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Seong-Joong Jae-Young
Lee Kho