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| Number | Title | Issue Date |
| 8134898 | Method and device for protecting a PLL in reading signals on a defect disc A device for protecting a PLL in reading signals on a defect disc from disturbance and instability is provided. The device includes a defect detection unit, a logic combination unit and a PLL. The defect detection unit receives a plurality of defect detection signal... | 03/13/2012 |
| 8130612 | Recording device, recording method, and computer program A recording apparatus which records information on a write once recording medium sequentially including a user data area, a first management information area, an indicator area and a second management information area on a recording layer thereof. The recording appa... | 03/06/2012 |
| 8107336 | Write once optical disc, and method and apparatus for recovering disc management information from the write once optical disc A write once optical recording medium and a method and apparatus for storing and recovering defect management information to and from the write once optical recording medium are provided. The recording medium includes at least one recording layer, and a data area on... | 01/31/2012 |
| 8077570 | Error recovery method for video recording 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 syst... | 12/13/2011 |
| 8036079 | Recording medium, recording apparatus, reproduction apparatus, recording method and reproduction method The present invention allows the usability of a write-once recording medium to be enhanced. The write-once recording medium is provided with an ordinary recording/reproduction area, an alternate area, a first alternate-address management information area (DMA) and a... | 10/11/2011 |
| 7978577 | Method of and apparatus for managing disc defects using temporary defect information (TDFL) and temporary defect management information (TDDS), and disc having the TDFL and TDDS A disc having an updatable defect management area used by an apparatus for managing defects on the disc, the disc including a user data area which includes user data, a spare area that is a substitute area for a defect existing in the user data area, and an area in ... | 07/12/2011 |
| 7969841 | Method and apparatus for recording management information medium and the recording medium The write-once recording medium has a data structure for managing temporary defect management areas, TDMAs, of the recording medium, where each TDMA is for at least storing temporary defect management information. In one embodiment, the recording medium includes a T... | 06/28/2011 |
| 7957241 | Device and method for detecting defect signals on an optical disc A device for detecting defect signals on an optical disc includes a finite state machine (FSM) to control a servo system of an optical disk drive. When the FSM is in a DETECT state and defect signals are greater than thresholds, a detection counter is set to a first... | 06/07/2011 |
| 7952972 | Write-once optical disc, and method and apparatus for recording/playback management information on/from optical disc An apparatus and method for recording and reproducing data are discussed. According to an embodiment, the present invention provides an apparatus for recording management information on a writable recording medium, the recording medium including one or more temporar... | 05/31/2011 |
| 7952971 | Recording/reproducing method suitable for recording/reproducing AV data on/from disc, recorder and reproducer for the method, information recording disc and information processing system The present invention relates to a method for recording an AV file using an information recording disk in which data is recorded/reproduced by sectors. The recording method includes the steps of determining whether or not input data is AV data; detecting a defective... | 05/31/2011 |
| 7944789 | Recording medium playback device and method thereof When playback of a recording medium, which stores content data that is only allowed to be played back for a limited number of times, is forcibly terminated due to a scratch on the recording medium, the playback of the content data residing at a subsequent location t... | 05/17/2011 |
| 7929390 | Optical recording method on multilayer optical recording medium and optical recording apparatus When there is a defect area in a specific recording layer, recording of information is continued to restrain reduction in a recording rate. In an optical recording method for recording information on a multilayer optical recording medium having a plurality of record... | 04/19/2011 |
| 7916593 | Optical disk device and method of control of an optical disk utilizing retry feature An optical disk device capable of increasing access speed and an image pickup device having such an optical disk device. In a region at the inside of an optical disk where the rotational speed of the spindle motor reaches its limit, a CAV mode is used for access, wh... | 03/29/2011 |
| 7898918 | Write-once optical disc, and method and apparatus for recording/reproducing management information on/from optical disc A write-once optical disc and a method and apparatus for recording management information on the optical disc are provided. The optical disc includes at least one recording layer and a plurality of temporary defect management areas (TDMAs) on the at least one record... | 03/01/2011 |
| 7889611 | Media processor capable of efficiently discarding media A media processor, such as an optical disk publisher, is capable of efficiently discarding media such as a defective CD without using a manual discarding process. At the time of media publication of an optical disk publisher 5, blank media 14 stored in... | 02/15/2011 |
| 7869318 | Write once recording medium, recorder and recording method for write once recording medium, reproducer and reproducing method for write once recording medium, computer program for controlling recording or reproduction, and data structure A write-once-type recording medium (100) on which record data can be recorded only once, provided with: a data area (108) to record therein the record data; and a shared area (104, 105) to temporarily record therein evacuation data which is reco... | 01/11/2011 |
| 7821893 | Method for analyzing an abnormal region on an optical recording medium The present invention relates to a method for analyzing abnormal regions on an optical recording medium. The method includes the steps of: detecting the abnormal region; determining the type of the abnormal region;... | 10/26/2010 |
| 7821894 | Method and apparatus for recording information onto and reproducing information from a recording medium and managing a defective area in a recording medium The method and apparatus can register defective areas in a recording medium not having a dedicated sparing area. A data recording area and a sparing area are not preliminarily divided. When a defective area is found, data is transferred to another area in the record... | 10/26/2010 |
| 7801001 | Media disc reliability Damage to removable or non-removable media or to content on the media may prevent access to content on the media. A processor may recognize a defect in the media, for example, due to read errors. The processor may request a “clean” (i.e., undamaged) or replaceab... | 09/21/2010 |
| 7787337 | Method for detecting data defect in optical recording medium A data signal includes a master signal generated by a master part of an optical pickup head in response to a light beam reflected from the optical recording medium and a side signal generated by a side part of the optical pickup head in response to the light beam re... | 08/31/2010 |
| 7738333 | Optical disk drive for writing a re-writable optical disk and method thereof An optical disk drive of recording a re-writable optical disk and the method thereof. First, an optimum power is determined. A gain of a SBAD (Sub Beam Adder) signal is adjusted for generating an calibrated SBAD signal such that the calibrated SBAD signal maintains ... | 06/15/2010 |
| 7697387 | Information recording medium, and information recording apparatus and method An information recording medium is provided with: a recording area divided into a plurality of partial areas; and an information area for recording therein (i) management information for managing recording conditions of the plurality of partial areas at least for ea... | 04/13/2010 |
| 7672208 | Write-once optical disc, and method and apparatus for recording/playback management information on/from optical disc 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... | 03/02/2010 |
| 7663997 | Write once optical disc, and method and apparatus for recovering disc management information from the write once optical disc A write once optical recording medium and a method and apparatus for storing and recovering defect management information to and from the write once optical recording medium are provided. The recording medium includes at least one recording layer, and a data area on... | 02/16/2010 |
| 7656762 | Write once recording medium, recorder and recording method for write once recording medium, reproducer and reproducing method for write once recording medium, computer program for controlling recording or reproduction, and data structure A write-once-type recording medium (100) on which record data can be recorded only once, provided with: a data area (108) to record therein the record data; and a shared area (104, 105) to temporarily record therein evacuation data which is reco... | 02/02/2010 |
| 7656763 | Calibrating a defect scan parameter for a disk drive A method is disclosed for performing a defect scan for a disk drive. Data is recorded on a first data area of a disk substantially free from defects and on a second data area of the disk substantially affected by at least one defect. A defect scan parameter is initi... | 02/02/2010 |
| 7639579 | White dot out detecting device A white dot out detecting device according to the present invention comprises a recording/reproduction control signal generator for generating a recording/reproduction control signal showing a recording state or a reproducing state of an optical disk, a variable gai... | 12/29/2009 |
| 7626905 | Method and device for protecting a slicer in reading signals on a defect disc A device for protecting a slicer in reading signals on a defect disc from disturbance and instability is provided. The device includes a defect detection unit, a slicer and a logic combination unit. The defect detection unit receives a plurality of defect detection ... | 12/01/2009 |
| 7623427 | Surface inspection by amplitude modulated specular light detection An apparatus for detecting defects on a disk surface includes a light source that generates a light beam and a beamsplitter that splits the light beam into a first light beam portion and a second light beam portion. The first light beam portion illuminates the surfa... | 11/24/2009 |
| 7606128 | Method for assigning spare area in optical recording medium An optical recording medium and a method and apparatus for assigning a spare area in a rewritable optical recording medium are provided. According to an embodiment, there is provided an apparatus for assigning a spare area in a storage medium assignable at least one... | 10/20/2009 |
| 7583574 | Write-once recording medium preserving data-recording status, method of preserving data recording status of a write-once recording medium, medium including computer readable code for the same, and recording and/or reproducing apparatus therefor A write-once recording medium preserving a data recording status of the write-once recording medium, a method of preserving the data recording status of a write-once recording medium, a medium including computer readable code for the same, and a recording and/or rep... | 09/01/2009 |
| 7573794 | Data defect detection using soft decision result A defect detection device, apparatus, and method for detecting a defect of data recorded on a recording medium. The defect detection device includes a waveform state detection part generating information representing a state of a waveform of a reproduced signal from... | 08/11/2009 |
| 7570559 | Write-once optical disc, and method and apparatus for recording/reproducing management information on/from optical disc A write-once optical disc and a method and apparatus for recording management information on the optical disc are provided. The optical disc includes at least one recording layer and a plurality of temporary defect management areas (TDMAs) on the at least one record... | 08/04/2009 |
| 7570557 | Method and apparatus for recording management information on a recording medium and the recording medium The write-once recording medium has a data structure for managing temporary defect management areas, TDMAs, of the recording medium, where each TDMA is for at least storing temporary defect management information. In one embodiment, the recording medium includes a T... | 08/04/2009 |
| 7570558 | Disc playing method without interruption and system thereof A disc playing method and related system without interruption is disclosed. First, the data blocks on a disc (such as a DVD) is previewed without playing. Next, the error ratio of the data block is determined. If the error ratio of the data block exceeds a predeterm... | 08/04/2009 |
| 7548500 | Method of and apparatus for managing disc defects using temporary defect management information (TDFL) and temporary defect management information (TDDS), and disc having the TDFL and TDDS A disc having an updatable defect management area used by an apparatus for managing defects on the disc, the disc including a user data area which includes user data, a spare area that is a substitute area for a defect existing in the user data area, and an area in ... | 06/16/2009 |
| 7548501 | Method of and apparatus for managing disc defects using temporary defect management information (TDFL) and temporary defect management information (TDDS), and disc having the TDFL and TDDS A disc having an updatable defect management area used by an apparatus for managing defects on the disc, the disc including a user data area which includes user data, a spare area that is a substitute area for a defect existing in the user data area, and an area in ... | 06/16/2009 |
| 7545720 | Method of and apparatus for managing disc defects using temporary defect management information (TDFL) and temporary defect management information (TDDS), and disc having the TDFL and TDDS A disc having an updatable defect management area used by an apparatus for managing defects on the disc, the disc including a user data area which includes user data, a spare area that is a substitute area for a defect existing in the user data area, and an area in ... | 06/09/2009 |
| 7522501 | Recording, reproducing and product for management of data having a temporary defect management area containing at least one pointer The data structure on the recording medium includes a temporary defect management area storing a data block. The data block includes sequential recording information and a temporary definition structure. The sequential recording information provides information on c... | 04/21/2009 |
| 7499385 | Write-once recording medium preserving data-recording status, method of preserving data-recording status of a write-once recording medium, medium including computer readable code for the same, and recording and/or reproducing apparatus therefor A write-once recording medium preserving a data recording status of the write-once recording medium, a method of preserving the data recording status of a write-once recording medium, a medium including computer readable code for the same, and a recording and/or rep... | 03/03/2009 |
