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Information recording medium, method and device thereof

An information recording and recording device technology, which is applied in recording/reproducing/deleting methods, recording signal processing, information storage, etc., can solve the problem of limiting the number of updates of drive information, eliminate the limit on the number of updates that can be made, and avoid information that cannot be processed. Postscript, high-speed effect of ensuring reliability

Inactive Publication Date: 2004-12-01
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since multiple recordings cannot be performed on the same track of the write-once recording medium, it itself limits the number of times for trial recording and updating of drive information.

Method used

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  • Information recording medium, method and device thereof
  • Information recording medium, method and device thereof
  • Information recording medium, method and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0056] FIG. 1 shows a schematic diagram of an optical disc medium in this embodiment. As shown in FIG. 1 , a spiral guide groove (hereinafter referred to as “groove”) is formed on the recording surface of the optical disc medium 101 . On the information track 105, address information (not shown) indicating an absolute position on the optical disk is recorded in advance by changes in the shape of the groove.

[0057] In addition, although not shown in the figure, an organic pigment recording film is formed on the recording surface of the optical disc medium 101. By focusing the light spot of the laser light by the recording device and modulating the laser power according to the data to be recorded, the above-mentioned recording film is irradiated. The organic pigment material of the recording film changes due to a local temperature rise, enabling information recording. The optical disc medium described in this embodiment is of a write-once type (Write Once), and information ca...

Embodiment approach 2

[0137] In this embodiment, another example of a method of specifying a trial recording area that can eliminate the difference in the inner and outer peripheral characteristics of the optical disc will be described. In the present embodiment, the area for trial recording is determined based on the radial position of the area where user data recording is performed.

[0138] First, a method of specifying a trial recording area capable of eliminating poor inner and outer peripheral characteristics when the information recording layer is a single-layer optical disc will be described.

[0139] FIG. 11 is an explanatory diagram showing a method of specifying an area for trial recording on the optical disc medium 101 in this embodiment. In FIG. 11 , it shows a schematic view of the area structure of the optical disc medium 101 starting from the innermost periphery (ie, left side) to the outermost periphery (ie, right side). 2 or 4, the trial recording area 203, defect management area...

Embodiment approach 3

[0164] In this embodiment, a test recording is performed on a write-once optical disc medium (for example, DVD-R) that records data sequentially from the inner circumference to the outer circumference using a write link (hereinafter referred to as "link") method. example of the situation.

[0165] FIG. 1 is a diagram showing a write-once optical disc medium using a chaining method and its information writing procedure. As shown in the figure, guide grooves are formed on the write-once optical disc medium 1301 in a spiral shape from the inner circumference to the outer circumference, and this is called an information track 1302 . The physical address is pre-recorded in a given format according to the shape change of the guide groove on the information track 1302 . The information recording device recognizes the physical address by reading the shape of the guide groove formed on the information track 1302, and specifies the place where information recording should be performed....

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Abstract

Provided is a method for recording information, capable of preventing the impossibility of recording / updating specific information caused by the shortage of an area for a specific use (trial recording, driving control information or the like) other than the recording of user data. When detecting the impossibility of using a trial recording area for obtaining optimal recording / reproducing conditions in the combination of a recording medium with a recorder, trial recording is carried out in a data recording area, and management information including an address pointer indicating the position of the trial recording is recorded in a defect management area. Thus, a limit on the executable number of times of trial recording dependent on the size of the trial recording area is eliminated.

Description

technical field [0001] The present invention relates to an information recording medium on which information is digitized and recorded, particularly an information recording medium having an area for managing medium defects, a method for recording information on the information recording medium, and an apparatus thereof. Background technique [0002] With the development of the information society, the transmission of information is advancing towards high-speed and large-capacity. Therefore, an information recording medium for recording and storing such information is increasingly required to be increased in speed and capacity. [0003] For rewritable (rewritable) recording media represented by optical discs, in the case of primary defects such as pinholes in the manufacturing process, or secondary defects such as scratches and stains in actual use, in order to ensure recording For the reliability of information, a function called replacement processing is generally introdu...

Claims

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Application Information

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IPC IPC(8): G11B5/09G11B7/007G11B7/125G11B7/1263G11B20/12G11B20/18G11B27/36
CPCG11B2220/218G11B20/1883G11B27/36G11B7/00736G11B2220/20G11B7/1263G11B20/1816G11B2220/237
Inventor 具岛丰治伊藤基志
Owner PANASONIC CORP
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