Optical disc player having a disk offset detection and protection

Claim 1

An optical disk player for stopping the driving of an optical disc when it is incorrectly loaded comprising disk driving means on which an optical disk is detachably loaded; traverse detecting means for detecting that a recording track on said optical disk loaded on said disk driving means is traversed by an optical pickup and producing a corresponding detection output; traverse counting means for counting the number of recording tracks traversed by said optical pickup on the basis of the detection output by said traverse detection means and producing a corresponding count value output; angle detection means for detecting that said optical disk has been rotated a predetermined angle by said disk driving means and producing a corresponding angle detection output; and stop control means connected to the disk driving means and supplied with the count value output from said traverse counting means and the angle detection output from said angle detection means, for detecting when the count value output by said traverse counting means during rotation by a predetermined angle of said optical disk by said disk driving means reaches a predetermined number of tracks corresponding to a predetermined allowable offset of a position of the optical disk on the disk driving means and stopping the driving of said optical disk by the disk driving means when said count value output reaches said predetermined number of tracks.