Method and apparatus for overwriting data in write-once recording medium
AssigneeLG Electronics Inc.
InventorYong Cheol Park
Life of this patent
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Abstract
A method and apparatus for overwriting data in a recording medium, such as a Blu-ray disc write-once (BD-WO), are disclosed. The method includes when receiving a plurality of data record commands for a previously recorded area within the recording medium, replacement recording the received data for each record command on a non-recorded area within the recording medium, and when the plurality of record commands occur in a continuous area within the recording medium, the data is recorded on a management area within the recording medium as a management information for the plurality of record commands.
Claims18
A method for overwriting data in a write-once recording medium, the method comprising:
- when receiving a plurality of data record commands for a previously recorded area within the recording medium, replacement recording the received data for each record command on a non-recorded area within the recording medium, and when the plurality of record commands is made in a continuous area within the recording medium, the data is recorded on a management area within the recording medium as a management information for the plurality of record commands.
A method for overwriting data in a write-once recording medium, the method comprising:
- when receiving a data record command for a previously recorded area within the recording medium, replacement recording the received data for the record command on a non-recorded area within the recording medium;
- and
- recording a location information of the previously recorded area and a replacement area as at least one entry in a management area, and recording data while excluding an entry of a defect area existing within the previously recorded area.
An apparatus for overwriting data in a write-once recording medium, the apparatus comprising:
- a memory for temporarily storing a management information in accordance with a replacement recording;
- and
- a microcomputer replacement recording the received data for each record command on a non-recorded area within the recording medium, when receiving a plurality of data record commands for a previously recorded area within the recording medium, temporarily the storing management information in accordance with the replacement recording for each record command, and controlling the management information as one entry so as to be recorded on a management area within the recording medium, when a continuity exists between the management information in accordance with the record command for each record command stored in the memory.
An apparatus for overwriting data in a write-once recording medium, the apparatus comprising:
- a pickup unit recording data and management information on the recording medium;
- and
- a microcomputer replacement recording the received data for the record command on a non-recorded area within the recording medium, when receiving a data record command for a previously recorded area within the recording medium, recording a location information of the previously recorded area and a replacement area as at least one entry in a management area, and controlling the pickup unit so that data is recorded while excluding an entry of a defect area existing within the previously recorded area.
A recording medium, comprising:
- a data area including a replacement area replacing a previously recorded area in accordance with a record command for the previously recorded area within the recording medium;
- and
- a temporary disc management area recording location information of the previously recorded area and the replacement area as two pair entries, wherein, when recording the two pair entries in the previously recorded area, the data is recorded while excluding an entry of a defect area existing within the previously recorded area.
Dependencies are inferred from the claim text.