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Protective cover for optically read digital disks

A technology for protective sleeves and optical discs, applied in data recording, optical recording/reproduction, instruments, etc., can solve problems such as blocking players

Inactive Publication Date: 2008-02-06
丹尼尔・L・普尔 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This could jam the player, collapse the sleeve or cause other damage, and prevent reading of the data on the disc

Method used

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  • Protective cover for optically read digital disks
  • Protective cover for optically read digital disks
  • Protective cover for optically read digital disks

Examples

Experimental program
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Embodiment Construction

[0022] Turning now to the drawings, in which like reference numerals designate corresponding elements in the several views, first describing FIGS. Cover 10 includes a generally planar, circular shield portion 12 and an annular peripheral frame 14 . Shield portion 12 and frame 14 may be formed from a variety of materials, but are preferably formed from a plastic material such as polyester, polyethylene, polycarbonate, or the like. As can be seen from the description below, the frame 14 is manufactured using a dedicated molding technique enabling the formation of undercut elements. Shield portion 12 has an outer edge 16 and an inner edge 17 defining a central opening 18, and is transparent to an optical reading device employed to retrieve data from the optical disc. With additional reference to FIG. 6 , the frame 14 includes a generally planar annular seat 20 extending radially inwardly from a lower edge 22 of a circumferential end wall 24 . End wall 24 is a continuous ring to...

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PUM

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Abstract

A protective cover (10) for protecting a read side of an optical disk (40), including a circumferential frame (14) for receiving and engaging the optical disk (40) and a shield (12). The frame (14) includes a continuous end wall (24), an annular base (20) extending radially inwardly from a lower edge (28) of the end wall (24) and a plurality of spaced apart tabs (26) extending radially inwardly from an upper edge (28) of the end wall (24) for engaging an upper surface (45) of an optical disk (40). The shield (12) is transparent and has an inner edge (17) defining a central opening (18), an outer edge (16) and a generally planar annular surface extending between the outer edge (16) and the inner edge (17). The shield (12) is carried by the annular base (20) for receiving and covering the read side (46) of the optical disk (40).

Description

technical field [0001] The present invention relates to data storage devices. More particularly, the present invention relates to storage devices for securing data. In a further and more specific aspect, the invention relates to a protective case for an optical pickup disc. Background technique [0002] Optical pickup discs store digital data in the form of microscopic pits on their lower surface. These discs include CDs, CD-ROMs, CD-RWs, DVDs, and the like. The encoded data is read using a laser, typically projected through a transparent protective surface integrally formed on the lower surface of the disc. Damage or contamination of this protective surface can cause distortion of the read data. [0003] Disc protective sleeves have been developed to prevent damage. Many protective sleeves must be removed before the disc can be read. This is inherently inconvenient and time consuming, and damage is likely to occur before the reading device is inserted. To overcome th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B23/03
CPCG11B7/24097G11B23/0317
Inventor 丹尼尔·L·普尔罗伯特·N·普尔
Owner 丹尼尔・L・普尔