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| Number | Title | Issue Date |
| 8149671 | Optical disc and optical disc device An optical disc drive according to the present invention can read and/or write data from/on an optical disc with information layers including first and second information layers (L0 and L1). The drive includes: an objective lens for converging a light ... | 04/03/2012 |
| 8036083 | Optical disk device This optical disk device includes an examination means which examines a first physical characteristic of an optical disk, and a servo means which starts servo control based upon that first physical characteristic. This optical disk device includes a read means which... | 10/11/2011 |
| 7787343 | Recording and reproducing device A recording and reproducing device (1) in which, when the power is turned off, the state of the power can be controlled to be in either one of a first power-off state and a second power-off state in which the recording and reproduction device (1) can b... | 08/31/2010 |
| 7440376 | Operation condition setting system The present invention makes it possible to set an operating condition enabling the best recording characteristic to be obtained for any kind of recording media, even in the case where the recording medium is combined with any kind of drive devices. According to the ... | 10/21/2008 |
| 7369473 | Record medium, recording method for record medium, output controlling method, reproducing apparatus, record and reproduction controlling method, recording method, record and reproduction method, and recording and/or reproducing method A recording method for embedding in a record medium many types of management information corresponding to many types of record media as additional information added to content data that is recorded on the record medium, performing a first encoding process for the co... | 05/06/2008 |
| 7366071 | Data recording method and device, data recording medium, data reproduction method and device The present invention provides a DSV normal controller and a DSV special controller. In only a predetermined region designated on an optical disc, the DSV special control is performed. The DSV special control causes the absolute value of the DSV to increase so that ... | 04/29/2008 |
| 7359304 | Method for recording wobble signals on an optical disc and optical disc on which the wobble signals are recorded After pre-coding bit data of address information to be recorded on an optical disc on the basis of at least 4 wobble units, wobble data pre-coded on at least 4 wobble units is modulated by a BPSK (Binary Phase Shift Keying) or ASK (Amplitude Shift Keying) method, an... | 04/15/2008 |
| 7342866 | Optical disc and its information recording method and apparatus Recording timing of a Data segment is set so as to avoid locating a wobble modulated portion as preformat information which indicates information on Physical segments of a recording type optical disc, and a recording start head position of the Data segment to be rec... | 03/11/2008 |
| 7342859 | Optical recording system capable of switching from a constant angular velocity recording mode to a constant linear velocity recording mode In an optical recording system, according to a wobble sync signal obtained from a wobble signal associated with a physical track of a recording medium being recorded with input data by a recording module operated in a default constant angular velocity (CAV) recordin... | 03/11/2008 |
| 7319651 | Recording apparatus and recording method The amount of light reflected from a disk is detected, and it is determined according to the amount of reflected light whether the disk is a recordable disk or a rewritable disk. The disk is controlled according to the result of determination such that it is rotated... | 01/15/2008 |
| 7319650 | Recording apparatus and recording method The amount of light reflected from a disk is detected, and it is determined according to the amount of reflected light whether the disk is a recordable disk or a rewritable disk. The disk is controlled according to the result of determination such that it is rotated... | 01/15/2008 |
| 7319649 | Recording apparatus and recording method The amount of light reflected from a disk is detected, and it is determined according to the amount of reflected light whether the disk is a recordable disk or a rewritable disk. The disk is controlled according to the result of determination such that it is rotated... | 01/15/2008 |
| 7292512 | System using radio frequency identification (RFID) for copy management of digital media A readable and writable radio frequency identification (RFID) tag is attached to a physical medium such as a CDROM or DVD. Each time a copy of the medium is created, a variable or count stored in the writable RFID is updated. In cases where the mechanism for reading... | 11/06/2007 |
| 7286460 | Recording medium for storing version information for maintaining recording and/or reproducing compatibility, and method and apparatus for managing the same A method of recording read/write compatibility information on an optical disc and a recording medium employing the method. Extended part version information, latest part version having recording capability, and latest part version having reproducing capability are s... | 10/23/2007 |
| 7269112 | Information recording apparatus An information recording apparatus such as an optical disc that can avoid an unrecordable condition between a power-on operation and an available state for recording thereby to solve a problem that an image taking chance is missed in a recording step, wherein its co... | 09/11/2007 |
| 7248550 | Writing method and disk recording apparatus Disclosed are a writing method and a disk recording apparatus for maintaining reproduction reliability relative to a rewritable disk recording medium of a zero link type. In one embodiment, a disk recording apparatus for a rewritable optical disk comprises a first t... | 07/24/2007 |
| 7230889 | Startup procedure of optical drive after recording or erasing on optical disc The present invention discloses a startup procedure of optical drive after recording or erasing on an optical disc. After disc writing, startup procedure begins, a chipset reads the recorded data on the disc directly using the track information and focus servo param... | 06/12/2007 |
| 7227825 | Signal recording/reproducing apparatus with improved power consumption A signal recording/reproducing apparatus includes a first power source unit which generates necessary electric power signals from a commercial power source, a second power source unit which generates a necessary electric power signal from a battery, a recording sign... | 06/05/2007 |
| 7224545 | Methods and systems for overwrite protected storage media According to one aspect of the invention, methods and systems for operating a magnetic storage media drive to perform read/write operations to magnetic storage media in an overwrite protected mode are provided. In one example, a method includes receiving a write req... | 05/29/2007 |
| 7196990 | Information recording scheme for preventing recording failure resulting from impact or vibration An information recording apparatus includes: an information recording part performing information recording on a recording medium divided into a plurality of sectors each including a plurality of information units; a prediction part detecting or predicting an occurr... | 03/27/2007 |
| 7187633 | Marking of a data medium material for information intended for reproduction A method of identifying a mechanically readable medium is described. The medium, for instance a gramophone record, a magnetic tape or a celluloid film, contains information which is contained in a continuous sequence on the medium and is intended for optical or acou... | 03/06/2007 |
| 7187844 | Information recording apparatus An information recording apparatus include: a processing unit for processing recording information to be recorded and for generating processed information; a storage unit for temporarily storing the processed information; a recording unit for recording the processed... | 03/06/2007 |
| 7184376 | Reproducing apparatus A reproducing apparatus for detecting a reproduction stop date when reproduction of image data is stopped in the past, and for determining a reproduction start position in the image data on a basis of the reproduction stop date, and further for starting the reproduc... | 02/27/2007 |
| 7142493 | Recording medium for storing version information for maintaining recording and/or reproducing compatibility, and method and apparatus for managing the same A method of recording read/write compatibility information on an optical disc. Extended part version information, latest part version having recording capability, and latest part version having reproducing capability are stored in n.xy form on 6 bytes of a reserved ... | 11/28/2006 |
| 7120096 | Disk apparatus In a case of recording data into an optical disk (100), a disk apparatus (10) rotates the optical disk (100) by a ZCLV system, and in a case of reading out the data from the optical disk, the disk apparatus rotates the optical disk by a ZCAV sys... | 10/10/2006 |
| 7120920 | Disc drive and optical disc drive An easily manufacturable optical disc drive that provides for accurate writing and reading of information signals to and from a disc loaded therein by maintaining the horizontal balance of its base during operation, and that provides for smooth loading and unloading... | 10/10/2006 |
| 7113466 | Recording apparatus and recording method The amount of light reflected from a disk is detected, and it is determined according to the amount of reflected light whether the disk is a recordable disk or a rewritable disk. The disk is controlled according to the result of determination such that it is rotated... | 09/26/2006 |
| 7102989 | Recording medium with restricted playback feature and apparatus and methods for forming, recording, and reproducing the recording medium A recording medium, such as a high-density and/or read-only recording medium, such as BD-ROM, capable of preventing unauthorized duplication of data streams, written thereon, onto another medium, such as a BD-RE or BD-R, which includes physical mark information, and... | 09/05/2006 |
| 7095695 | Optical recording reproducing apparatus and optical recording medium used therein Disclosed are an optical recording reproducing apparatus which can effectively remove contamination material attached thereto and an optical recording medium used in the optical recording reproducing apparatus. To this end, the apparatus comprises: a catalyst layer ... | 08/22/2006 |
| 7079458 | Buffer memory address translation device To provide an optical disk drive having an enhanced replaying capability in case of an abnormality occurring in various kinds of synchronization of the optical disk drive or in replay of a defective sector. A frame synchronization counter value address transl... | 07/18/2006 |
| 7047335 | Method for receiving user defined frame information structure (FIS) types in a serial-ATA (SATA) system An apparatus comprising one or more user programmable registers and a circuit configured to compare a predetermined portion of one or more information packets with contents of said one or more user programmable registers. ... | 05/16/2006 |
| 7046600 | Optical disc apparatus with laser power control matching linear recording velocity A method is designed for controlling a power of a laser beam irradiated onto a track of an optical disc for recording of data at a given linear velocity. The method is carried out by the steps of performing test recording into a predetermined area of the optical dis... | 05/16/2006 |
| 7038985 | System using radio frequency identification (RFID) for copy management of digital media A readable and writable radio frequency identification (RFID) tag is attached to a physical medium such as a CDROM or DVD. Each time a copy of the medium is created, a variable or count stored in the writable RFID is updated. In cases where the mechanism for reading... | 05/02/2006 |
| 7035197 | Disk drive including a balancer A disk drive capable of producing the effect of a balancer even in a variety of reproduction and recording speeds without causing problems owing to the balancer, comprising a balancer in which magnetic balls 1 movably accommodated inside a damper 6 can... | 04/25/2006 |
| 7020059 | Adjustment optical disc for optical pick-up, adjustment method for optical pick-up, and adjustment apparatus for optical pick-up An adjustment method for optical pick-up including a light source for emitting light beams, an object lens for irradiating light beams onto an optical disc for adjustment and a drive portion for driving the object lens in a direction in parallel to the optical axis ... | 03/28/2006 |
| 7012868 | Adjustment optical disc for optical pick-up, adjustment method for optical pick-up, and adjustment apparatus for optical pick-up An adjustment method for optical pick-up including a light source for emitting light beams, an object lens for irradiating light beams onto an optical disc for adjustment and a drive portion for driving the object lens in a direction in parallel to the optical axis ... | 03/14/2006 |
| 6999386 | Drive, method for reading data, information recording medium reproduction apparatus, and method for reproducing data having reading errors A method for reading data from an information recording medium having a plurality of address regions, includes the steps of: performing a reading operation for all of designated address regions among the plurality of address regions while holding read error informat... | 02/14/2006 |
| 6992960 | Recording apparatus and recording method The amount of light reflected from a disk is detected, and it is determined according to the amount of reflected light whether the disk is a recordable disk or a rewritable disk. The disk is controlled according to the result of determination such that it is rotated... | 01/31/2006 |
| 6990054 | Recording apparatus and recording method The amount of light reflected from a disk is detected, and it is determined according to the amount of reflected light whether the disk is a recordable disk or a rewritable disk. The disk is controlled according to the result of determination such that it is rotated... | 01/24/2006 |
| 6970408 | Method for discriminating optical discs, and optical disc apparatus An optical disc apparatus which is compatible with a compact disc (CD) and a Digital Versatile Disc (DVD) has a configuration of an optical pickup which performs a scanning operation in a focus-on and track-off state to read signals from an optical disc; an RF ampli... | 11/29/2005 |