Unlock instant, AI-driven research and patent intelligence for your innovation.

Pick-up equipment transferring device of optical disk player

A technology of a transfer device and a pickup, which is applied to the configuration/installation of the head, supports the head and other directions, and can solve the problems of poor disc playback and recording.

Inactive Publication Date: 2006-07-05
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
View PDF0 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pick-up equipment transferring device of optical disk player
  • Pick-up equipment transferring device of optical disk player
  • Pick-up equipment transferring device of optical disk player

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The structure of an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] 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.

[0030] 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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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 two pickup 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/08G11B7/09G11B21/26
Inventor 姜成泽
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI