Write-once optical disc, and method and apparatus for recording/playback management information on/from optical disc
First Claim
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1. A system for recording management information on a recording medium, the recording medium including at least one temporary management area for storing temporary management information before the recording medium is closed and a final management area for storing final management information when the recording medium is closed, the system comprising:
- a recording device configured to record data to the recording medium, the recording device including;
a pickup unit configured to create a first indicator to indicate which temporary management area among temporary management areas is currently in use, and create a second indicator to indicate whether or not the recording medium is closed, anda microcomputer coupled to the pickup unit and configured to control the pickup unit to create the first and second indicators; and
a host device operatively coupled to the recording device via an interface, and configured to transmit a write command for recording the data onto the recording medium to the recording device,wherein the microcomputer is configured to control the pickup unit to create the first and the second indicators in one of the temporary management areas,wherein the second indicator is located inner than the first indicator.
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Abstract
A write-once optical disc, and an apparatus and method for recording management information on the optical disc are provided. The disc includes at least one recording layer, a plurality of temporary defect management areas (TDMAs) on the at least one recording layer, and a plurality of defect management areas (DMAs) on the at least one recording layer. At least one of the TDMAs includes first and second indicators. The first indicator indicates which TDMA is an in-use TDMA, and the second indicator indicates whether or not the recording medium is closed.
214 Citations
22 Claims
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1. A system for recording management information on a recording medium, the recording medium including at least one temporary management area for storing temporary management information before the recording medium is closed and a final management area for storing final management information when the recording medium is closed, the system comprising:
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a recording device configured to record data to the recording medium, the recording device including; a pickup unit configured to create a first indicator to indicate which temporary management area among temporary management areas is currently in use, and create a second indicator to indicate whether or not the recording medium is closed, and a microcomputer coupled to the pickup unit and configured to control the pickup unit to create the first and second indicators; and a host device operatively coupled to the recording device via an interface, and configured to transmit a write command for recording the data onto the recording medium to the recording device, wherein the microcomputer is configured to control the pickup unit to create the first and the second indicators in one of the temporary management areas, wherein the second indicator is located inner than the first indicator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system of reproducing data recorded on a recording medium, the recording medium including at least one temporary management area and a final management area, the system comprising:
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a reproducing device conflgured to reproduce data from the recording medium; and a host device operatively coupled to the reproducing device via an interface, and configured to transmit a read command for reproducing the data from the recording medium to the reproducing device, wherein the reproducing device includes; a pickup unit configured to read final management information from the final management area if the recording medium has been closed, or read temporary management information from a temporary management area currently in use if the recording medium has not been closed, and a microcomputer coupled to the pickup unit and configured to determine whether or not the recording medium has been closed based on a second indicator within the recording medium, determine which temporary management area among temporary management areas is currently in use based on a first indicator within the recording medium if the recording medium has not been closed, and control the pickup unit to read the data recorded on the recording medium based on the read final management information or the read temporary management information, wherein the first and the second indicators are located in one of the temporary management areas, and the second indicator is located inner than the first indicator. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of recording management information on a recording medium, the recording medium including at least one temporary management area for storing temporary management information before the recording medium is closed and a final management area for storing final management information when the recording medium is closed, the method comprising:
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creating a first indicator in one of temporary management areas so as to indicate which temporary management area among the temporary areas is currently in use, wherein the first indicator has a size of at least one cluster; and creating a second indicator in the one of the temporary management areas so as to indicate whether or not the recording medium is closed, wherein the second indicator has a size of one cluster and the second indicator is located inner than the first indicator.
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22. A method of reproducing data recorded on a recording medium, the recording medium including at least one temporary management area and a final management area, the method comprising:
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determining whether or not the recording medium has been closed based on a second indicator located in one of temporary management areas, wherein the second indicator has a size of one cluster; determining which temporary management area among the temporary management areas is currently in use based on a first indicator located in the one of the temporary management areas if the recording medium has not been closed, wherein the first indicator has a size of at least one cluster; reading final management information from the final management area if the recording medium has been closed, or reading temporary management information from a temporary management area currently in use if the recording medium has not been closed; and reading data recorded on the recording medium based on the read final management information or the read temporary management information, wherein the second indicator is located inner than the first indicator.
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Specification
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Current AssigneeLG Electronics, Inc. (LG Corporation)
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Original AssigneeLG Electronics, Inc. (LG Corporation)
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InventorsPark, Yong Cheol
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Primary Examiner(s)Hindi; Nabil Z
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Application NumberUS11/984,172Publication NumberTime in Patent Office839 DaysField of Search369/275.3, 369/53.1, 369/53.15, 369/53.17, 369/53.12, 369/53.14US Class Current369/53.15CPC Class CodesG11B 20/1883 Methods for assignment of a...G11B 2020/1873 Temporary defect structures...G11B 2220/20 Disc-shaped record carriersG11B 27/034 on discs G11B27/036, G11B27...
