Defect area management system and method for optical storage medium
AssigneeLG Electronics Inc.
InventorsYong Cheol Park, Myong Gu Lee
Life of this patent
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Abstract
A defect area management system for an optical storage medium including a management part producing a defect area management signal for real-time processing and transmitting the signal along with data to be written; and a write part executing a defect area management of the optical storage media, writing the data, applied by the defect area management signal from the management part, into the optical storage medium so that whenever a light pickup meets a defect block at the time of writing data requiring the real-time processing into the optical storage medium, it does not have to be moved to the spare area, thus reducing the time it takes to move the light pickup and removing shortcomings of the real-time processing.
Claims13
A method for managing a defective area on a recording medium, the recording medium including defect management area including a defect management information, which indicates a position of defective area, comprising the steps of:
- receiving a command for real time recording or reproducing;
- determining whether a found defective block is listed in the defect management information;
- and
- skipping the defective block and recording or reproducing data in a next available block if the found defective block has been listed in the defect management information.
A method for managing a defective area on a recording medium, the recording medium including a defect management area including defect management information, which indicates a position of defective area, comprising the steps of:
- receiving a command for reproducing;
- determining whether a found defective block has been listed in the defect management information and the defective block has not been replaced with an available block of spare area based on an information, the information indicating whether the defective block is replaced with an available block of spare area;
- and
- controlling the reproduction such that an optical pickup skips the defective block and reproduces the data in a next available block if the found defective block has been listed in the defect management information and the defective block has not been replaced with an available block of spare area.
A system for managing a defective area on a recording medium, the recording medium including a defect management area including defect management information, which indicates a position of defective area, comprising:
- recording/reproducing device to record or reproduce on or from the recording medium, the recording/reproducing device receiving a command for real time data recording or reproducing, checking whether or not a found defective block is listed in the defect management information, skipping the defective block and recording data in a next available block if the found defective block has been listed in the defect management information, and recording an information to indicate that the defective block has been listed in the defect management information has not been replaced;
- and
- host device, coupled to the recording/reproducing device, to control a recording/reproducing device, the host device transferring the command for real time data recording or reproducing to the recording/reproducing device, and controlling the recording/reproducing device to record or reproduce data according to the command.
Dependencies are inferred from the claim text.