CD recording and playing method

A technology of optical disc recording and playback method, applied in the directions of digital recording/reproduction, digital signal error detection/correction, etc., can solve the problems of low data recording quality, playback error, low recording quality, etc., and achieve the effect of preventing low recording quality

Inactive Publication Date: 2006-02-22
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] However, in the section where the wobble signal quality of high-speed recording is low, the recording quality will be reduced, so the possibility of reading error (read error) during playback is quite high.
[0022] Moreover, the modules located on the boundary between the end of the recording (writing) and the re-starting of the recording (writing) may overlap and record; and it may also induce undesirable phenomena such as low data recording quality caused by disc defects.
[0023] In addition, due to this phenomenon of low recording quality, the possibility of errors during playback is relatively high

Method used

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  • CD recording and playing method

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Embodiment Construction

[0040] Referring to the accompanying drawings, the embodiment of the optical disc recording and playing method of the present invention will be described in detail below.

[0041] First, the data recording method in the present invention is as follows.

[0042] Figure 4 It is a sequence diagram of the optical disc recording method in the present invention.

[0043] S401, S402, in the optical recording device loaded with a recordable optical disc, when data is received from the host, the optical recording device writes the data into the data area of ​​the optical disc, and extracts a wobble signal from the optical disc.

[0044] S403. When there is a defect on the optical disc, the above-mentioned jitter signal will appear as an error. In order to determine whether there is a defect on the optical disc, it is first necessary to determine whether an error occurs in the extracted signal.

[0045] As a result of the above judgment, if there is no error in the dithering signal, ...

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Abstract

This invention relates to disc record and play method, wherein, the former method comprises the following steps: extracting shake signals from disc to judge whether it is right or wrong; according to results and signals have error, fulfilling certain data record to disc guide area before data and error affirming; the play method comprises the following steps: reading data from disc data area; judging whether there is error; according to result, reading the error, searching relative data module from disc; discovering the said relative data module in the guide area and reading the module data from area sent to host machine; going back to step one.

Description

(1) Technical field [0001] The present invention relates to a method for recording and playing an optical disc, in particular to a method for recording and playing an optical disc that can prevent low recording quality due to defects in the optical disc and the phenomenon that the optical disc cannot be played. (2) Background technology [0002] Concentric circular or spiral tracks (groove tracks / land tracks) are formed on a general optical disc. User data is recorded on the track. The way of recording information on the optical disc generally adopts the following two methods: constant linear velocity (Constant Linear Velocity: CLV) method, which changes the rotational speed of the optical disc according to the position of the track, and records information with a certain bit rate (bit rate); constant angular velocity (Constant Linear Velocity: CLV) Angle Velocity: CAV), has nothing to do with the position of the track, maintains a certain rotation speed from the innermost ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/18
Inventor 朴寓钟
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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