Error recovery method for video recording
AssigneeSunplus Technology Co., Ltd.
InventorsFong-Hwa Song, Po-Wei Lin
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Abstract
An error recovery method for video recording is provided. The method is suitable for recovering data of a disk when an error occurs during video recording. The method includes following steps. First, a last writable address of the disk is obtained. Then, a file system last written onto the disk is located by searching forward from the last writable address. Next, a new file system is generated based on the file system and a data segment of the defected recording. Finally, the new file system is written onto the disk so as to recover the data on the disk. Therefore, the data currently written onto the disk and the existing data in the disk can be recovered.
Claims8
An error recovery method for video recording comprising:
- obtaining a last writable address of a disk when commencing a defected recording, wherein the disk is a write-once digital versatile disk;
- searching forward for a file system last written onto the disk from the last writable address;
- generating a new file system according to the file system and a data segment last written before the commencing of the defected recording;
- inserting another data segment as a buffer after the data segment;
- writing the new file system spatially positioned after the buffer of the recorded data segment last written so as to recover the data on the disk;
- detecting the length of a defective segment on the disk after obtaining the last writable address of the disk;
- determining whether the length of the defective segment on the disk exceeds a predetermined length or not after searching forward for the file system last written onto the disk;
- and
- directly performing a finalization procedure to the disk when the length of the defective segment exceeds the predetermined length.
Dependencies are inferred from the claim text.