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Multi-layered information recording medium, reproduction apparatus, recording apparatus, reproduction method, and recording method

A technology of information recording and media, applied in the direction of digital recording/reproduction, use of detectable carrier information, digital signal error detection/correction, etc. record layer etc.

Inactive Publication Date: 2009-03-11
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This poses a problem that it takes a long time until the actual recording or reproduction of the disc is started
In addition, defect management is performed separately for each recording layer, so if the limited defect list storage area in a certain recording layer is exhausted, any defect list storage area of ​​other recording layers cannot be used for the exhausted recording Floor
This presents a problem that the defect list storage area cannot be used efficiently

Method used

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  • Multi-layered information recording medium, reproduction apparatus, recording apparatus, reproduction method, and recording method
  • Multi-layered information recording medium, reproduction apparatus, recording apparatus, reproduction method, and recording method
  • Multi-layered information recording medium, reproduction apparatus, recording apparatus, reproduction method, and recording method

Examples

Experimental program
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Embodiment 1

[0094] A multilayer information recording medium according to Embodiment 1 of the present invention will be described below with reference to the drawings. A multilayer information recording medium as used herein refers to an information recording medium including at least two recording layers.

[0095] Image 6 is a diagram showing a multilayer information recording medium 600 according to Embodiment 1 of the present invention. The multilayer information recording medium 600 includes two recording layers 51 and 52 . The multi-layered information recording medium 600 includes a user data area 602 for recording user data. The user data area 602 straddles the boundary between the two recording layers 51 and 52 . In embodiment 1 of the present invention, Image 6 The upper recording layer (51) shown is referred to as a first recording layer, and the lower recording layer (52) is referred to as a second recording layer.

[0096] The first recording layer 51 is located at a pr...

Embodiment 2

[0130] A multilayer information recording medium according to Embodiment 2 of the present invention will be described below with reference to the drawings.

[0131] Figure 11 is a diagram showing a multilayer information recording medium 800 according to Embodiment 2 of the present invention. The multilayer information recording medium 800 of Embodiment 2 includes a first recording layer 53 and a second recording layer 54 . In the first recording layer 53 and the second recording layer 54, a defect management area and a spare DL storage area are provided in a manner similar to the first recording layer 51 and the second recording layer 52 shown in Embodiment 1. The difference between the multilayer information recording medium 800 and the multilayer information recording medium 600 of Embodiment 1 is that in the multilayer information recording medium 800, the first recording layer 53 includes a head spare area 1101 (head spare area) and a middle spare area 1102 , the secon...

Embodiment 3

[0140] An information recording / reproducing apparatus 500 according to Embodiment 3 of the present invention will be described below with reference to the drawings. This information recording / reproducing apparatus 500 performs recording and reproduction using the multilayer information recording media 600 and 800 described in Embodiments 1 and 2, respectively.

[0141] Fig. 13 is a block diagram showing an information recording / reproducing apparatus 500 according to Embodiment 3 of the present invention. This information recording / reproducing apparatus 500 includes a disc motor 502, a preamplifier 508, a servo circuit 509, a binarization circuit 510 (binarization circuit), a modulation / demodulation circuit 511, an ECC circuit 512, a buffer 513, a CPU 514, an internal bus 534 and the bald part 535. This multi-layered information recording medium 800 is loaded in the information recording / reproducing apparatus 500 . The optical head section 535 includes a lens 503 , an actuato...

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Abstract

The invention claims a multi-layered information recording medium, comprising: several recording layers; a user data area for recording user data, provided in at least two of the several recording layers; and a defect list storing area for storing a defect list. When at least one defective area is detected in the user data area, the defect list is used to manage the at least one defective area. The defect list storing area is provided in only one of the several recording layers.

Description

[0001] This application is a patent application with an application date of January 10, 2003, an application number of 03805718.2 (PCT / JP03 / 00181), and an invention title of "multilayer information recording medium, reproducing device, recording device, reproducing method, and recording method" divisional application. technical field [0002] The present invention relates to a multi-layer information recording medium comprising at least two recording layers, a reproducing device, a recording device for use with the multi-layer information recording medium, a reproducing device for reproducing information from the multi-layer information recording medium and a reproducing device for use in the multi-layer information recording medium A recording method for recording information on the multilayer information recording medium. Background technique [0003] A typical information recording medium having a sector structure is an optical disc. In recent years, AV data such as audi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/18G11B27/32
Inventor 植田宏伊藤基志石田隆山本义一东海林卫
Owner PANASONIC CORP