Controlling method and apparatus for feeding motor transfer of optical record player

A technology of feed motor and control method, which is applied in magnetic recording, data recording, recording information storage, etc., can solve problems such as spinning, interference, and optical pickup cannot move, and achieve stable feed transfer, stable tracking track, Reduce the effect of joint properties
CN1253866CInactive Publication Date: 2006-04-26LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
Publication Date
2006-04-26
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a control method for the transfer of a feed motor of an optical record player, which uses the rotation information of the optical disc, that is, the number of frequency generation signals generated every time the optical disc rotates, through the feed motor, the optical pick-up According to a certain amount that has been set, that is, to move the track pitch, after that, the residual error that occurs through the existing tracking drive and feed transfer drive control, minimizes the dependence on the existing feed transfer drive, and offsets the above-mentioned rotation information. The residual error after the move. Therefore, the feed transfer error can be quickly compensated and the residual error can be minimized. Since the dependence on the existing feed and transfer driver is reduced, the joint characteristics caused by the poor control of the tracking error detection part and the tracking control part can be minimized. The invention can solve the phenomenon that the off-track cannot be tracked due to fault or interference, resulting in repeated off-track.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to the control method and device for the transfer of the feed motor of the optical record player, in particular to a feed transfer control method for a certain amount of feed transfer for an optical record player whose result is fed back and used for feed transfer control. A control method and device for motor transfer. Background technique

[0002] Generally, in the standard servo, only the tracking servo is used. When the optical pickup tracks the eccentricity of the optical disc, due to the limitation of the drive range of the tracker, there will be a feed error that the actuator does not track. Such infeed errors need to be tracked by the infeed drive.

[0003] figure 1 is a schematic diagram of an ordinary CD-ROM drive system, figure 2 It is a structural diagram of the above-mentioned optical disk drive system.

[0004] That is, in order to rotate the optical disk, the spindle motor generates rotational force wit...

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