Automatic slope compensating device and optical record reproducer with said device

Abstract

An automatic tilt compensator senses and automatically compensates for a disc deformation while an optical recording and / or reproducing apparatus operates. The automatic tilt compensator of an optical recording / reproducing apparatus has a disc deformation detecting section for sensing a deformation direction and a deformation degree of a disc seated and rotated on a disc rotation unit of a deck base and for outputting a predetermined signal, and a level adjustment section for elevating and lowering a pair of guide shafts movably supporting a pickup unit on the deck base while being operated by the signal from the disc deformation detecting section, to thereby adjust the level of the pickup unit corresponding to the deformation degree of the disc. According to this, the level of the pickup unit according to the deformation direction or the deformation degree of the disc can be automatically adjusted while the optical recording / reproducing device is operated.

Description

technical field [0001] The present invention relates to optical recording and reproducing machines, and more particularly to an automatic tilt compensator for automatically detecting and compensating for deformation of a rotating disc while the optical recording and reproducing machine is in operation, and an automatic tilt compensator with an automatic tilt compensator Optical record and replay machines. Background technique [0002] An optical recorder / player is a device that records and / or plays back desired information on a disc using optical equipment. In such an optical recording and reproducing machine, the disk is placed on a turntable by means of a disk loading mechanism and rotated at a predetermined speed by means of a rotating mechanism, namely, a spindle motor. When the disc rotates, the pickup moves in the radial direction of the disc and emits a laser beam to the disc, so that the pickup can reproduce and record information. [0003] At this time, the laser ...

AI Technical Summary

Problems solved by technology

In this way, to give an extreme example, if the inclination of the disk carried by the optical recorder is opposite to the disk used to adjust the level of the pickup when the optical recorder is assembled, then the distance between the disk and the pickup will be reversed. The gap can widen or become very narrow relative to the set gap, making the recording and playback of the information wrong or worse making the information impossible to realize.

The above-mentioned problems appear to be particularly serious in digital versatile discs (DVDs) whose recordings are smaller than compact discs (CDs).

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