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

Optical disk player and rail changing method

A technology for players and optical discs, applied in the direction of recording/reproducing by optical methods, configuration/installation of instruments, heads, etc., which can solve the problem of taking a long time

Inactive Publication Date: 2011-05-04
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the detection of the offset signal is required every time the track jump operation is performed, this method takes a considerable time to move the optical read head to the target position

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
  • Optical disk player and rail changing method
  • Optical disk player and rail changing method
  • Optical disk player and rail changing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to realize the fast track jump operation of the CD player, it is first necessary to pre-define the virtual partition of the CD. Specific circumstances such as Figure 4 As shown, in this embodiment, the optical disc 150 is predefined as concentric circular virtual areas 151 , 152 , 153 , 154 and 155 . Each concentric circular virtual area has an equal width along the radial direction of the disc. The optical disc 150 may be predefined as at least one concentric circular virtual area.

[0033] As shown in FIG. 5 , the optical disc player 100 for reading and writing an optical disc 150 disclosed in the first preferred embodiment includes a sensing device 110 , a track jumping device 120 , a driving device 130 , an optical pickup head 140 , an amplifying device 160 and Track jump command generator 170. Wherein, the track jumping device 120 is connected to the sensing device 110 and the track jumping command generating device 170 respectively. In addition, the ...

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 present invention relates to an optical disc player consisting of a track jump apparatus, a drive apparatus and an optical pickup head, the three of which are connected in turn; wherein, the track jump apparatus receives track jump orders based on that the control signals for track jump are generated; the drive apparatus is based on track jump control signals to produce driving force so that optical pickup heat is moved to the targeted position corresponding to the target track of the optical disk. The track jump apparatus comprises a testing module to bring testing orders, a control module based on the testing orders to generate test control signals which are sent to the drive apparatus, a memory module to store offset signals which are produced by the test of the optical pickup head driven by the drive apparatus on the optical disk based on the test control signals; wherein, the control module reads out the offset signals in the memory module and carries redeeming operation on the track jump orders.

Description

technical field [0001] The invention relates to an optical disc player, in particular to an optical disc player using a track jumping device and a track jumping method of the optical disc player. Background technique [0002] Disc players use compact discs as storage media. Concentric circular tracks or spiral tracks are formed on the recording surface of the optical disc. The optical disc player uses an optical pickup head to project a beam of light onto the track to record data on the track, and also uses a detection device to detect the reflected beam reflected back from the track to reproduce the data on the track . [0003] like figure 1 As shown, the optical disc player 400 can record data on the optical disc 450 or reproduce data recorded on the optical disc 450 . The optical disc player 400 includes a drive device 430 and an optical pick-up head 440 . The driving device 430 is used to move the optical pickup head 440 . In this case, the drive device 430 has a r...

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): G11B7/085G11B7/09
Inventor 曾一峻
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD