Information recording medium

A technology for recording media and identifying information, which is applied in data recording, information arrangement, information storage, etc., and can solve problems such as information cannot be recorded, recording capacity is limited, and information volume is reduced.

Inactive Publication Date: 2007-05-02
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this type of optical disc, since information cannot be recorded on the header area composed of pre-pit strings, the recording capacity is limited
As described above, existing recording media allow a reduction in the amount of information recorded on a recordable area

Method used

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Examples

Experimental program
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Embodiment Construction

[0022] Referring to FIG. 3, there is shown an optical disc having land and groove signal tracks 20 and 22 according to one embodiment of the present invention. The land and groove signal tracks 20 and 22 are defined as mutually parallel spiral patterns from the innermost circumference to the outermost circumference of the disc as shown in FIG. 4, or from the innermost circumference to the outermost circumference as shown in FIG. The outer circumference is alternately arranged in each rotation period to form a spiral signal track. Each of the land and groove signal tracks 20 and 22 includes in-phase wobble areas 24A and out-of-phase wobble areas 24B intersecting at each predetermined area and appearing alternately in the circumferential direction, ie, the advancing direction of the respective tracks. These in-phase wobbling areas 24A are arranged alternately with out-of-phase wobbling areas 24B in the diameter direction, that is, in the width direction of the land and groove tr...

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Abstract

The invention relates to a recording medium that is adapted to maximize the recording capacity and to simplify the configuration of an information recording / reproducing apparatus including a pickup. In the medium, a different type of wobbling signals are preformatted in each of the adjacent land and groove signal tracks. A same-phase wobbling signal provided by wobbling each side of the respective land and groove signal tracks in the same phase and a different-phase wobbling signal provided by wobbling each side of the respective land and groove signal tracks in a different phase are used as the different type of wobbling signals. The physical positions of all the land and groove signal tracks are indicated by the same-phase wobbling signal.

Description

[0001] This application is a divisional application filed on August 17, 1998, with application number 98117299.7, entitled "Information Recording Medium". technical field [0002] The present invention relates to a recording medium having land and groove tracks, and more particularly to a recording medium suitable for recording information on land and groove tracks. Background technique [0003] Recently, recording media such as optical recording media and magneto-optical recording media have been developed as recording media for recording various information such as video and audio information, and are commercially available. Such optical recording media include read-only discs such as CD, CD-ROM, DVD-ROM, write-once read-many discs such as CD-R, DVD-R, and CD-RW, DVD -Rewritable discs such as RAM. [0004] In an existing rewritable optical disc, identification (hereinafter referred to as "ID") information including address (or position) information enabling information to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/007G11B7/24G11B20/12G11B7/24082G11B7/24094G11B20/10G11B27/19G11B27/24G11B27/30
CPCG11B7/00718G11B2220/2575G11B2220/2545G11B2220/218G11B2220/2562G11B7/24082G11B27/24G11B27/3027G11B2220/216G11B20/10
Inventor 金大泳
Owner LG ELECTRONICS INC
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