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Label indicating ageing or degradation for optical disc or optical disc enclosure

A label and optical disc technology, which is applied in carrier indication/alarm devices, chemical indicators for analysis, optical recording/reproduction, etc., can solve the problems of not being able to provide real indications of disc degradation status and uncertain service life of discs, etc.

Inactive Publication Date: 2008-12-03
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the major disadvantages of using optical discs as a data storage medium is that the useful life of optical discs is indeterminate
However, such systems have the disadvantage of not providing a true indication of the state of degradation of the disc
[0019] In addition to the disadvantages mentioned above, if the disc is not used for a long time, e.g. because it is only used as a backup figure 1 The disc package 1 shown in Personal Library 3) may have passed the end of life for that disc

Method used

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  • Label indicating ageing or degradation for optical disc or optical disc enclosure
  • Label indicating ageing or degradation for optical disc or optical disc enclosure
  • Label indicating ageing or degradation for optical disc or optical disc enclosure

Examples

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Embodiment Construction

[0033] figure 2 An example of an optical disc library 1 for storing optical disc packages 3 is shown. Each disc package 3 includes a label 5 for providing a visual indication of the state of degradation or aging of the corresponding disc. A "corresponding" optical disc means an optical disc provided with the package 3, or an optical disc stored in the package 3.

[0034] The label 5 can be placed at a convenient location on the tray package 3 . For example, the label 5 can be placed on the side of the DVD package. When the label 5 is new, the label is transparent. But as it ages, the label 5 will change color, eventually indicating that the data should be backed up to another disc. as from figure 2 It can be seen that the labels with different colors on each package 3 indicate that the corresponding optical discs have undergone different degrees of aging, and therefore have different degrees of degradation. Each label 5 is a film that can be attached to any surface.

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Abstract

An optical disc enclosure (3) in a library 1 comprises a label (5) for providing a visual indication about the state of degradation or ageing of a corresponding optical disc. The label (5) is placed on a convenient location on the disc enclosure (3) . For example, the label (5) can be placed on the side of a DVD enclosure. When new, the label (5) will be transparent. Upon ageing ordegradation due to exposure to environmental parameters, however, the label (5) will change color, ultimately indicating that data should be backed-up onto another disc. The label (5) can also be placed on the disc itself .

Description

field of invention [0001] The present invention relates to a label for an optical disc or optical disc packaging, and more particularly to a method and apparatus for providing a visual indication of the state of degradation of an optical disc. Background technique [0002] Today, optical disc technology is widely used as a data storage medium. One of the major disadvantages of using optical discs as a data storage medium is that the useful life of optical discs is indeterminate. [0003] There are three basic types of optical discs, CD, DVD, and BD (Blu-ray) discs, each of which includes ROM, R, and RW formats. Each of these disc types utilizes a different data layer material (eg molded aluminum, silver mirror, organic dye or phase change film, respectively). Assuming proper physical handling of the disc during use, the primary cause of disc degradation and ultimately "end of life" of the disc is the degradation of these materials. [0004] When using CDs and DVDs, the us...

Claims

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Application Information

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IPC IPC(8): G11B7/0037G11B33/10G11B7/24G11B7/24035G11B7/24094G11B7/24097
CPCG11B7/00375G09F3/10G11B23/40G01N31/229G09F3/02G11B23/42G11B23/36
Inventor R·J·M·武勒斯A·E·T·凯帕
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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