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Optical disk recording system

A technology for optical disc recording and optical discs, which is applied in optical recording systems, disc-shaped record carriers, optical discs, etc., and can solve problems such as misalignment of focus

Inactive Publication Date: 2009-08-05
YAMAHA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As mentioned above, "buffer underrun" is a phenomenon that cannot be predicted from misalignment, so misalignment and "buffer underrun" cannot be discussed under the same conditions

Method used

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  • Optical disk recording system
  • Optical disk recording system
  • Optical disk recording system

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0099] figure 1 It is a block diagram showing the main configuration of an embodiment of the optical disc recording system of the present invention.

[0100] The optical disc recording system of the present embodiment includes an optical disc drive unit 10, which records data into the optical disc 1 and reproduces data from the optical disc 1 to form a visible image. A host device 40 such as a backend device, etc., is connected to the optical disc drive unit 10 . The host device 40 is installed with an image editing program for editing visual images to be recorded on the optical disc 1, and a control program for recording data and visual images on the optical disc 1 and reproducing them from the optical disc 1. data. Reference numeral 41 denotes a buffer memory for temporarily storing data to be transferred from the host device 40 to the optical disk drive unit 10 . The host device 40 sequentially reads data stored in the buffer memory 41 and transfers the read data to the...

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Abstract

When 'buffer under run' (BUR) occurs during recording of a visible image on an optical disk, recording operation is interrupted. As in the case of type A, when BUR 1 occurs after data have been transferred through an integral multiple of one revolution, data are recorded continuously from a reference angle position without host device discarding data. As in the case of type B, when BUR 2 occurs after data have been transferred in a value which is other than the integral multiple of one revolution, data corresponding to a duration from the position where BUR occurs to the start of the next revolution are discarded, data are continuously recorded from the reference angle position. Thereby, rendering can be spliced in a visually-smooth manner. Further, as in the case of type C, when the volume of data remaining in a buffer has become equal to or less than a 'buffer under run' threshold value, subsequent transfer of data from the host device may be interrupted, and rendering may be resumed without the host device discarding data.

Description

technical field [0001] The present invention relates to an optical disc recording system for forming a visible image on the disc surface of an optical disc such as CD-R / RW, DVD+R / RW or DVD-R / RW using laser light. Background technique [0002] It is known that visible images such as characters or figures can be recorded on the recording side of an optical disc or on the label side (the side opposite to the recording side) of an optical disc by using laser light. [0003] For example, Patent Document 1 proposes a technique of disposing a visible light characteristic changing layer at a position visible from the label surface of an optical disc, and exposing the visible light characteristic changing layer to a laser beam, thereby changing the visible light characteristic of the layer and drawing Visual image. [0004] Patent Document 2 proposes a technique of using a reversible phase change material for a recording film of an optical disc capable of recording visible images an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/00G11B7/0045G11B20/10
CPCG11B19/04G11B2220/2537G11B20/10527G11B2020/10814G11B19/28G11B7/0037G11B23/40G11B2020/10675
Inventor 糸贺久顺山田圣哉浅见纯伏木达郎
Owner YAMAHA CORP