Disk player

Abstract

The present invention provides a disc player capable of reading both a content signal and reference information from a disc provided with a reference information recording area on the inner peripheral side of the content signal recording area. This disk player has the switch (74) that detection signal reading position arrives at the intermediate position of content signal recording area and reference information recording area, when sending out the instruction that will read information from reference information recording area, from switch (74) After the detection, move the picker (4) to the inner circumference of the disk for a certain period of time, and when the picker (4) reaches the opposite position to the reference information recording area, stop the picker (4) from moving further by the limit block (61) .

Description

technical field [0001] The present invention relates to a disc player which reads out a signal from a disc-shaped recording medium such as an optical disc and reproduces it as sound and / or image. Background technique [0002] The disc player has: a turntable that drives the disc to rotate; a pick-up that reads signals from the rotating disc; a pick-up driving device that drives the pick-up back and forth along the radial direction of the disc through the engagement of the rack and pinion, The signal is read optically from the signal side of the disc. [0003] Such as Figure 14 As shown, on the signal surface of the disc D, a recording area A for audio signals and image signals is provided, and at the same time, a TOC (table of contents) area B in which the address of the track of the entire disc is written is provided on the inner periphery thereof. Signals are read by reciprocating in these recording areas (content signal recording areas) in the disc radial direction. ...

AI Technical Summary

Problems solved by technology

[0010] Yet, because the recording form of signal or information in content signal recording area A and B and reference information recording area C is different, so can not make the movement control of the pick-up 4 in the content signal recording area directly be used for to the reference information recording area. mobile control

[0011] If the pick-up 4 moves until the switch 74 is turned on, the rack 5 collides with the stop block 76 due to the inertial force of the pick-up 4, and the meshing position of the rack 5 and the pinion 73 deviates because of the backlash, and the rack 5 retreats considerably. In the amount of 1 to several teeth, there is a danger that the signal reading position of the pickup 4 deviates from the reference information recording area C

Moreover, at this time, there will be a problem of noise due to the repeated tooth jumping of the rack 5 and the pinion 73.

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