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Multi-speed recording apparatus and method for multi-layer disc

A device and technology for recording layers, which can be used in optical recording/reproducing/erasing methods, recording/reproducing by optical methods, data recording, etc., and can solve problems such as changes in optical properties

Inactive Publication Date: 2010-05-12
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these optical properties change when the layers are inscribed

Method used

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  • Multi-speed recording apparatus and method for multi-layer disc
  • Multi-speed recording apparatus and method for multi-layer disc
  • Multi-speed recording apparatus and method for multi-layer disc

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Embodiment Construction

[0019] Reference will now be made to multi-speed and multi-layer recordable and / or rewritable optical storage media, for example, from dual-layer DVD+R, dual-layer DVD+RW, dual-layer DVD-R and dual-layer DVD-RW. An optical disc drive or an optical disc recorder for a selected multi-layer disc in an optical disc set illustrates the preferred embodiment.

[0020] The DVD+R / +RW format has become increasingly common for digital video recording and all PC (personal computer) data storage applications. A key advantage of the DVD+R / +RW format over competing formats is its backward compatibility with DVD read-only systems, allowing playback on existing DVD players. Such write-once discs are provided with guides called pre-grooves. The pre-groove is slightly wobbled around the center frequency in the radial direction of the disc, where recording time address information such as called ATIP (Absolute Time Pre-groove) or called ADIP is recorded by FSK (Frequency Shift Keying) modulation...

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Abstract

The present invention relates to a recording apparatus, record carrier and method of recording data on at least two layers of a recording medium by using a radiation power, wherein individual recording speeds are determined for respective ones of the at least two layers at different values of the radiation power. A recording speed to be used for recording on an individual one of the at least two recording layers is selected based on a maximum radiation power specified for the recording operation, and the speed of the recording operation is controlled individually for each of the at least two layers based on the selected recording speed. The determination of the individual recording speeds at different radiation power values may be written or embossed on the record carrier. Furthermore, a recording sequence used for recording on the recording layers can be set based on the sensitivities and thus recording speeds. Thereby, total recording time can be minimized for multi-layer recording media.

Description

technical field [0001] The present invention relates to an optical recording device and a power control method for controlling radiation power for optically recording data on a recording medium, and to an optical record carrier in which information can be written using the recording device and the power control method. Background technique [0002] Optically recordable record carriers or information carriers are generally known and used in recording devices for recording data on an information carrier by means of a radiation beam, eg a laser beam. The radiation beam is focused on the recording layer of the information carrier. At an appropriate radiation beam intensity or radiation power, the optical properties of the recording layer at the focal point will change, with the result that a mark is produced in the recording layer. By varying the intensity of the radiation beam, a pattern of marks can be formed in the recording layer. The recorded pattern contains the data to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/007G11B7/125G11B7/24G11B7/00G11B7/0045G11B7/24038
CPCG11B7/00736G11B7/00456G11B2007/0013G11B7/0045G11B7/24038G11B7/1263G11B19/28
Inventor R·J·A·范登奥特拉尔H·C·F·马坦斯W·R·科帕斯P·H·沃尔利
Owner KONINK PHILIPS ELECTRONICS NV
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