PROTECTION CIRCUIT FOR OPTICAL DISC PLAYERS

摘要

A protection circuit for optical disc players which can prevent the unnecessary radiation of laser beams due to a malfunction of the player. The circuit includes a laser radiating and detecting means which detects the laser beams reflected from an optical disc and a driving means which receives the detected signal from the laser radiating and detecting means and controls a microcomputer to cut out the supply of a driving voltage to the laser radiating and detecting means when the optical disc is not placed on a disc table.