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Signal processing method for photoetching medium

A signal processing and optical recording technology, applied in the signal processing field of optical recording media, can solve problems such as RF signal distortion, and achieve the effect of eliminating pre-recorded pits between grooves

Inactive Publication Date: 2006-11-15
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Therefore, distortion of RF signal due to occurrence of inter-groove pre-pit when information groove signal is read is a problem that must be solved

Method used

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  • Signal processing method for photoetching medium
  • Signal processing method for photoetching medium
  • Signal processing method for photoetching medium

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Embodiment Construction

[0031] Referring to the accompanying drawings, the embodiment of the signal processing method for the optical recording medium of the present invention will be described in detail.

[0032] The present invention is used to solve the RF signal distortion caused by the inter-groove pre-pit that occurs when the information groove signal is read. First, the composition of the error correction code block (ECC BLOCK) and the position of the pre-recorded pit (LPP) between grooves will be described below.

[0033] figure 1 It is a structural diagram showing the composition of the error correction code block (ECC BLOCK) and the location of the pre-pit (LPP).

[0034] In order to generate clock pulses to control the operation of the spindle servo (servo) and write / read data, it is necessary to write physical address information on the groove (groove) or land (land) surface of the optical disc. In the writable optical disc, wobble addressing using a land pre-pit addressing method is us...

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Abstract

The present invention relates to a signal processing method of photoetching recording medium. Said invention is characterized by reading optical disk with physical address information to produced clock pulse so as to control servomechanism operation and record / fetch data. Besides, said invention also provides the concrete method and steps for reading said optical disk.

Description

(1) Technical field [0001] The invention relates to a signal processing method of an optical recording medium which reduces signal distortion during recording and reading information of an optical disc by using a laser light source. (2) Background technology [0002] Generally, by rapidly increasing the processing speed of a semiconductor-based data processor (data processor), multimedia reading contents (multimedia contents) including high-quality video signals and audio signals can be realized and the capacity of the related data can be increased. Therefore, storage media capacity is also increased. [0003] Compared with other storage media, optical discs have attracted people's attention because of their large capacity, low price, and convenient movement and storage. [0004] In a recordable optical disc, in order to generate a clock pulse (clock) for controlling the operation of the spindle servo (servo) and recording / reading data, the groove (groove) or land (land) su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/004G11B7/00G11B20/10
Inventor 李俊硕李承远
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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