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CD with double track structure and data recording-reading method for the same CD-ROM

A track structure, data reading technology, applied in data recording, optical recording/reproducing/erasing methods, optical recording/reproducing, etc., can solve the problem that data and new data cannot be recorded and read synchronously

Inactive Publication Date: 2005-01-26
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] But, as above-mentioned optical disc, its data recording is realized on single track, and the record of new data starts to continue recording at the end point of previous data recording, thus there is no synchronization between existing data and new data. Defects such as recording and reading

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  • CD with double track structure and data recording-reading method for the same CD-ROM
  • CD with double track structure and data recording-reading method for the same CD-ROM
  • CD with double track structure and data recording-reading method for the same CD-ROM

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Embodiment Construction

[0016] figure 2 It is a structural diagram of an optical disc device using the data recording and reading method of the present invention. The optical disc device of the present invention, as shown in the figure, comprises: an optical pick-up 10 for recording and reading data on the optical disc D; an optical pick-up driver 11 for controlling the recording operation of the optical pick-up 10 according to recording needs; An RF processing device (radio frequency processing device) 13 that increases the frequency of the data read by the optical pickup or performs binary processing on the read signal from the optical disc; performs signal processing on the data input from the outside to make it conform to the recording format, and transmits it to the The optical pickup drive device 11 or the binary signal data output by the RF processing device 13 is signal-processed and transmitted to the signal processor 12 of the set display device; and the overall control such as data conver...

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Abstract

This invention is about the CD that with the dual-track structure and the data recording and reading method of its CD apparatus. The recording method of the CD that with the dual-track structure is: the first phase: recording the first data on the first track of the CD; the second phase: recording the second data synchronously on the second track. The reading of the first and the second data that recorded synchronously on the different tracks of the CD with the dual-track structure comprises: the first phase: reading the first data recorded on the first track, and store it temporarily; the second phase: reading the second data recorded on the second track; the third phase: synchronize the temporarily stored first data and the second data.íí

Description

(1) Technical field [0001] The invention relates to a data recording and reading method of an optical disc with double track structure and its optical disc device. (2) Background technology [0002] Generally, an optical disc device records or reads certain data on optical discs such as DVD (Digital Versatile Disc) and HD-DVD. With the development of video and audio data compression technology, its performance has also improved. Leaps of development. [0003] There are many kinds of optical discs mentioned above, including discs that can be recorded once and discs that can be recorded many times, such as figure 1 In the structure of the optical disc D shown, data is recorded on the inner circumference of a single spiral track, and the interval between the above-mentioned tracks is 1.6um. About 20,000 tracks can be set in one optical disc. [0004] In the optical disc device described above, when recording data on the track of the optical disc having the above-mentioned str...

Claims

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Application Information

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IPC IPC(8): G11B7/00G11B7/004
Inventor 郑钟爀
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI