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Multi-speed recordable information carrier

An information carrier and speed technology, applied in the field of portable devices and optical scanning devices, can solve the problems of difficult to manufacture recording materials and limited range of recording speed

Inactive Publication Date: 2006-04-19
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the range of recording speeds of these information carriers is also limited, and the wider the range of recording speeds, the more difficult it is to manufacture the recording material

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0024] figure 1 An information carrier according to an advantageous embodiment of the invention is described. The information carrier includes a central hole 10 , a location area 11 , a first area 12 and a second area 13 . The first region 12 comprises a first recordable material suitable for writing at a first speed and the second region 13 comprises a second recordable material suitable for writing at a second speed. The second speed is greater than the first speed.

[0025] The first and second materials may be WORM (write once read many) materials. In this case, writing in the first and second regions 12 and 13 is performed by beam ablation of the WORM material. On the surface of the first and second regions 12 and 13 are formed pits and lands, said pits and lands containing information written on the information carrier.

[0026] The first and second materials may also be RW (rewritable) materials. Phase change optical recording materials are an example of RW materia...

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PUM

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Abstract

The invention relates to an information carrier comprising at least a first area ( 12 ) comprising a first recordable material having thermal properties suitable for writing at a first recording speed and a second area ( 13 ) comprising a second recordable material having thermal properties suitable for writing at a second recording speed. The second recording speed is greater than the first recording speed.

Description

technical field [0001] The invention relates to a recordable information carrier. [0002] The invention also relates to an optical scanning device for recording information on the information carrier. [0003] In particular the invention relates to optical data storage and optical disc devices, especially portable devices, for recording data on recordable discs. Background technique [0004] Data storage via light beams on information carriers has been widely used. For example, portable recording devices, such as laptop computers, have become available. When a user wants to record information on an information carrier, such as an optical disc, for example information stored in the hard disk of his laptop computer, it is preferred that the recording process takes a short time. Therefore, it is preferable that the recording device has a high recording speed. However, recording information at high speeds consumes so much power that high recording speeds are generally not a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/007G11B7/24G11B19/02G11B7/24038
CPCG11B19/02G11B7/0079G11B7/24038G11B7/24041G11B7/007
Inventor F·彭宁B·罗帕伊M·范德亚A·米吉里特斯基
Owner KONINK PHILIPS ELECTRONICS NV