# US 7,613,085 B2 · Method and apparatus for managing defective area on recording medium, and recording medium using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,613,085 B2 - Document ID: US7613085B2 - Status: Granted - Kind: B2 - Application number: 12/078,336 - Filed: 2008-03-28 - Published: 2008-08-07 - Granted: 2009-11-03 - Earliest claimed: 2003-01-14 - Assignees: LG Electronics Inc. - Inventors: Yong Cheol Park; Sung Dae Kim - Web page: https://patentgrep.com/patent/US7613085B2 ## CPC - G11B 20/1883: {Methods for assignment of alternate areas for defective areas} - G11B 7/00375: {arrangements for detection of physical defects, e.g. of recording layer} - G11B 7/00736: {Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information (sector headers or adresses in prepits G11B7/00745; address data in track wobble G11B7/24082)} - G11B 7/007: Arrangement of the information on the record carrier, e.g. form of tracks {, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track} - G11B 2020/1873: {Temporary defect structures for write-once discs, e.g. TDDS, TDMA or TDFL} - G11B 2220/20: Disc-shaped record carriers - G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R) ## Abstract A method and apparatus for managing a defective area of a recording medium, are discussed. According to an embodiment, the method includes identifying a finalization state by searching identification information indicating whether or not the recording medium is finalized; searching a location of defect list information recorded in a management area when identification information indicating the recording medium is finalized; and searching a location of latest temporary defect list information recorded in a temporary management area when identification information indicating the recording medium is not finalized. ## Claims ### Claim 1 A method for managing a defective area of a recording medium, comprising: identifying a finalization state by searching identification information indicating whether or not the recording medium is finalized; searching a location of defect list information recorded in a management area when the identification information indicating the recording medium is finalized; and searching a location of latest temporary defect list information recorded in a temporary management area when the identification information indicating the recording medium is not finalized. ### Claim 2 (depends on 1) The method of claim 1, the method further comprising: performing either a writing operation or reproducing operation according to the latest temporary defect list information when the identification information indicating the recording medium is not finalized. ### Claim 3 (depends on 1) The method of claim 1, the method further comprising: performing a reproducing operation according to the defect list information when the identification information indicating the recording medium is finalized. ### Claim 4 (depends on 1) The method of claim 1, wherein the location of defect list information recorded in the management area includes a first physical sector number of the defect list information. ### Claim 5 (depends on 1) The method of claim 1, wherein the location of latest temporary defect list information recorded in the temporary management area includes a first physical sector number of the latest temporary defect list information. ### Claim 6 (depends on 1) The method of claim 1, wherein the identification information indicating whether or not the recording medium is finalized comprises at least one byte. ### Claim 7 An apparatus for managing a defective area of a recording medium, comprising: an optical pickup configured to read/write data from/on the recording medium; and a controller, operatively coupled to the optical pickup, configured to identify a finalization state by searching identification information indicating whether or not the recording medium is finalized, to search a location of defect list information recorded in a management area when the identification information indicating the recording medium is finalized, and to search a location of latest temporary defect list information recorded in a temporary management area when the identification information indicating the recording medium is not finalized. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the controller is further configured to control the optical pickup to perform either a writing operation or reproducing operation according to the latest temporary defect list information when the identification information indicating the recording medium is not finalized. ### Claim 9 (depends on 7) The apparatus of claim 7, wherein the controller is further configured to control the optical pickup to perform reproducing operation according to the defect list information when the identification information indicating the recording medium is finalized. ### Claim 10 (depends on 7) The apparatus of claim 7, wherein the location of defect list information recorded in the management area includes a first physical sector number of the defect list information. ### Claim 11 (depends on 7) The apparatus of claim 7, wherein the location of latest temporary defect list information recorded in the temporary management area includes a first physical sector number of the latest temporary defect list information. ### Claim 12 (depends on 7) The apparatus of claim 7, wherein the identification information indicating whether or not the recording medium is finalized comprises at least one byte. ### Claim 13 A recording medium having a lead-in area and a data area, the recording medium comprising: an area used to indicate a finalization state by using identification information indicating whether or not the recording medium is finalized; a final management area used to store defect list information when the identification information indicating the recording medium is finalized; and a temporary management area used to store temporary defect list information when the identification information indicating the recording medium is not finalized. ### Claim 14 (depends on 13) The recording medium of claim 13, wherein the final management area is allocated within the lead-in area. ### Claim 15 (depends on 13) The recording medium of claim 13, wherein the temporary management area is allocated within the lead-in area. ### Claim 16 (depends on 13) The recording medium of claim 13, wherein the temporary management area is allocated within a spare area of the data area.