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Pick-up equipment transfering device of optical disk player

A transfer device and pick-up technology, applied in the configuration/installation of the head, supporting the head, etc., can solve problems such as disc playback and bad recording

Inactive Publication Date: 2004-03-31
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] This kind of phase difference cannot form the detection of tracking error signal satisfactorily, and will eventually lead to poor playback and recording of the disc.

Method used

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  • Pick-up equipment transfering device of optical disk player
  • Pick-up equipment transfering device of optical disk player
  • Pick-up equipment transfering device of optical disk player

Examples

Experimental program
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Embodiment Construction

[0027] The structure of an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] image 3 and Figure 4 In order to show a planar cross-sectional view of the structure of an embodiment of the present invention, the pickups that move linearly with the guide shaft of the pickup are respectively located on the inner periphery and the outer periphery of the optical disk.

[0029] As shown in the figure, the pickup transfer device of the optical disk player of the present invention has a structure comprising: a pickup support disc 2 arranged on the chassis of the optical disk player; , on the upper side of the pick-up supporting disc 2, two pick-up guide shafts 41,42 arranged in a straight line; freely slidable on the pick-up guide shafts 41,42, playing or recording heterogeneous or homogeneous optical discs are respectively housed Two pick-ups 9,10 of two object lenses 6,7 of signal; And be arranged on the sid...

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PUM

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Abstract

The invention relates to an optical disc player pickup device transferring apparatus, wherein two pickup devices for the interchangeable broadcasting and recording of two different optical discs are arranged on the optical disc player, when the two pickup devices move in a rectilinear motion along the two guide shafts for the two pickup devices, in order that the objective lens centers of the twopickup devices move on the line through the compact disk center, a finite angle is arranged between the guide shaft. The optical disc player pickup device transferring apparatus according to the invention may prevent the phase error during the detection of false signal tracking.

Description

(1) Technical field [0001] The invention relates to a pickup transfer device of an optical disc player. In more detail, it is for the interchangeable playback and recording of two kinds of optical discs. On the optical disc player installed with two pickups, when the three-beam method or DPP method is implemented for detecting tracking error signals, the phase difference between the three beams is prevented. In case of errors, a picker transfer device with a fixed angle between the two picker guide shafts is provided. (2) Background technology [0002] There are two methods for interchanging playback and recording between different optical discs with different formats in the prior art. One is to use only one pick-up, by adjusting the focal distance and the laser beam on one side of the pick-up The size of the beam is adjusted to the wavelength of the light, and the other is to install several pick-ups dedicated to each disc in a disc player and exchange them as needed. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/08G11B7/09G11B21/26
Inventor 姜成泽
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI