CD recording apparatus and recording method thereof

A technology for recording and recording marks on optical discs, which is applied in optical recording/reproducing/erasing methods, optical recording systems, etc., and can solve the problems of large volume, complicated design of programmable delay elements, and difficulty in installing integrated circuits, so as to improve recording performance. The effect of precision

Inactive Publication Date: 2006-02-15
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

To meet these requirements above, the design of programmable delay elements becomes complex
[0015] In addition, when the programmable delay element is made into an IC (integrated circuit), it is difficult to install it inside the integrated circuit due to its very large volume

Method used

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  • CD recording apparatus and recording method thereof
  • CD recording apparatus and recording method thereof
  • CD recording apparatus and recording method thereof

Examples

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Embodiment Construction

[0039] image 3 It is a structural schematic diagram of an optical disc recording device adopting the recording method in the correct embodiment of the present invention.

[0040] Such as image 3As shown, the optical disc recording device among the present invention is made up of following structure: namely, provide the information to be recorded, and control the microcomputer 1 of whole system; The recording information that above-mentioned microcomputer 1 provides is carried out modulation processing, and generates the NRZI signal EFM decoder 3; Calculate the NRZI signal provided by the above-mentioned EFM decoder 3, and provide the NRZI mode analyzer 5 of the calculation result; Provide the optical scheme memory 21 of generating the required delay value of the multi-pulse; According to the optical scheme memory The delay value provided by 21 delays the NRZI signal provided by the above-mentioned EFM decoder 3, and generates a multi-pulse programmable delay element (Progra...

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Abstract

The invention provides a CD recording device and method of precision improvement, which is characterized by the following: the optical program accumulator of CD recording device records marking length, magnitude of power and time-delay value corresponding to the fore-and-aft marking gap combination, wherein the magnitude of power and time-delay value depends on the fore-and-aft marking gap combination of NRZI signals. The edible time-delay device generates multiple-pulse of NRZI signal. The LD activator transforms the DAC magnitude of power to operate the CD record by changing each pulse level.

Description

technical field [0001] The present invention relates to the technology of the optical disc recording device, especially the technology of the optical disc recording device and its recording method for more accurate marking in high-speed recording in consideration of time delay and recording power level. Background technique [0002] In re-recordable optical discs, the recording substances are usually composed of phase change substances. In such a phase-change optical disc, heat generated by light irradiation forms an optically recognizable mark on the optical disc with a recording layer. That is, the heating temperature and cooling rate can be controlled in the phase-change optical disk, and the crystal structure and the amorphous structure can be changed into a reversible structure, so as to save or delete information. [0003] In phase-change discs, information is saved or deleted depending on the laser power applied. If high-output laser power is irradiated on the recor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/0045
Inventor 姜仁秀
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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