Importance

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Abstract

A pick-up point dislocation detecting device for detecting dislocation of a pick-up point of pick-up means in a disc player. The pick-up point is dislocated from a recorded region of a recording disc being played back on the disc player. The dislocation detecting device compares the signal level of an electric signal obtained from the pick-up means with a reference level. The reference signal corresponds to the signal level of the electric signal when the pick-up point is located within an intervening region between two neighboring tracks on the recording disc. The dislocation detecting device produces a dislocation detection signal when the signal level of the obtained electric signal falls below the reference level.

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First Claim