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Tracing discrete spiral path relative to optical disc

An optical disc, path technology, applied in the direction of recording/reproducing by optical methods, optical recording/reproducing/erasing methods, optical recording systems, etc., can solve the problems of tracks that are not executed, difficult to follow tracks correctly, etc.

Inactive Publication Date: 2012-09-05
HEWLETT PACKARD DEV CO LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the label side of an optical disc, such as that described in patent application Serial No. 09 / 976,877, typically does not have any track
As a result, it is difficult to follow the track correctly when writing data to the label side of such discs

Method used

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  • Tracing discrete spiral path relative to optical disc
  • Tracing discrete spiral path relative to optical disc
  • Tracing discrete spiral path relative to optical disc

Examples

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Embodiment Construction

[0024] In the following detailed description of exemplary embodiments of the invention, reference is made to the accompanying drawings which form a part hereof, and are shown by way of illustration to be specific exemplary embodiments in which the invention may be practiced. Other embodiments may also be utilized, and logical, mechanical, and other changes may be made without departing from the spirit or scope of the invention. Therefore, the following detailed description is not in a limiting sense, and the scope of the invention is defined only by the appended claims.

[0025] Representative CD-ROM drive

[0026] figure 1 A representative optical disc drive 100 is shown in accordance with an embodiment of the present invention. The optical disc drive 100 is used to read from and / or write to the optical disc 102 . More specifically, the optical disc drive 100 is used to read from and / or write to the optically writable label side 104A of the optical disc 102 and the optical...

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Abstract

As an optical disc is being rotated within an optical drive, an optical mechanism of the optical drive traces a discrete spiral path relative to the optical disc. As the discrete spiral path is traced by the optical mechanism of the optical drive, the optical mechanism selectively writes to the optical disc.

Description

technical field [0001] The present invention relates to methods and apparatus for tracking discrete helical paths relative to an optical disc. Background technique [0002] Many types of optical discs include a data area and a label area. The data area is where machine-readable binary data is written, while the label area allows the user to record human-readable labels or images on the disc. Lasers or other types of light beams are used to read from and / or write to the data and label areas of the optical disc. For example, in patent application Serial No. 09 / 976,877, filed October 11, 2001, and entitled "Integrated CD / DVD Recording and Label" [Attorney Docket 10011728-1], an optical disc is disclosed in which a laser or Other beams can be used to write to the data area of ​​the disc. [0003] In some optical discs, the data area and the label area may be on opposite sides of the disc. The data side of such optical discs typically has a helical track or concentric circula...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/0037G11B23/40
CPCG11B7/0901G11B7/0037G11B7/0045G11B23/40
Inventor D·M·汉克斯G·J·利平斯基
Owner HEWLETT PACKARD DEV CO LP