Anti-burn method for recording and reproducing system

Abstract

The present invention provides an anti-burn method for a recording and reproducing apparatus when mechanism problem happen. The method includes: low-pass filtering a center error (CE) signal which shows the position of an optical pickup unit; detecting if the filtering CE signal is lower than a threshold value, then stopping recording and marking a stop point when the filtering CE signal is lower than the threshold value. The method further includes: continuing recording process from the stop point when the filtering CE signal is higher than the threshold value. The continuing recording process includes: preparing recording data; seeking the stop point of a disk; and continuing recording the disk from the stop point.

Description

technical field [0001] The present invention relates to a recording and reproduction system, in particular to an anti-burn method for the recording and reproduction system. Background technique [0002] In recent years, disc-type storage media such as CD-R, CD-RW, DVD-RAM and DVD-RW have been widely used due to their high storage capacity and lower and lower prices, and have enabled users to transfer data Recording and reproduction systems for writing to disk-type storage media have become more common. [0003] When writing data to the disc, you must ensure that there is still enough data to avoid the disc from burning (Buffer Under Run). In addition to increasing the capacity of the cache memory, many methods such as BURN-Proof, JustLink, and Seamless Link can also prevent the disk from burning out. The common feature of the above methods is that by monitoring the amount of data in the cache memory, when the amount of data is insufficient, the recording and reproduction s...

AI Technical Summary

Problems solved by technology

[0004] In addition to insufficient data in the cache memory, some mechanical factors such as vibration, old device or poor system design may cause writing damage

[0005] For example, the sled motor and the actuator can help the read-write head to focus and track correctly when writing to the disc. However, if the sled motor stops due to sudden vibration, the position of the read-write head will change. Offset (run-out), and the written data may be mistakenly burned on the wrong track, causing subsequent read failures

[0006] The inventor has observed that the mechanical problems of the recording and reproducing system may cause writing problems. However, the above-mentioned anti-burning methods such as BURN-Proof, JustLink, and Seamless Link cannot overcome the writing problems caused by such mechanical devices

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