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| Number | Title | Issue Date |
| 7773471 | Recording apparatus and recording method A recording apparatus and a recording method are provided. Control information is generated by the microcontroller based on the received command. The data preparing unit has a control register and a preparing circuit, wherein the control register is used for storing... | 08/10/2010 |
| 7457214 | Method for accessing a variable memory of an optical disk drive A method for accessing a variable memory of an optical disk drive includes utilizing the optical disk drive to read and write data of an optical disk, and identifying the type of the data. If the data is CD data, arrange writing variables from a first initial addres... | 11/25/2008 |
| 7372795 | Recording apparatus and method for generating an index file for a content file Before each content file is recorded first to a recording medium, a flag indicating a recording state of a content file is generated corresponding to a physical area where an index file can be continuously recorded. An index file is generated which associates attrib... | 05/13/2008 |
| 7362535 | Magnetic disk drive and recording method Embodiments of the invention provide a recording method capable of improving reliability of write data in a magnetic disk drive employing the servo area data system. In a magnetic disk drive according to one embodiment, vibration of a head/slider can be detected wit... | 04/22/2008 |
| 7349296 | Write control in response to tracking error A method for controlling writing on a data carrier device, at least including: writing data on the data carrier device with a data writer device; obtaining a tracking error signal corresponding to a position of the data writer device with respect to a track on the d... | 03/25/2008 |
| 7277368 | Playback method, playback control circuit and playback apparatus for a recording medium Stable playback performance is assured and data loss due to out-of-step synchronization is reduced even when playback signal quality deteriorates due to such cause as a recording medium defect. The playback method applies to a recording medium to which data is recor... | 10/02/2007 |
| 7277371 | Recording medium, recording device, reproduction device, recording method and reproduction method In order to enhance the usability of a write-once recording medium, the recording medium is provided with an ordinary recording/reproduction area, an alternate area, a first alternate-address management information area and a second alternate-address management info... | 10/02/2007 |
| 7266069 | Method and apparatus for retry calculation in an optical disk device A method for determining a maximum number of attempted retry operations when a read error occurs in an optical disk device. The method includes the steps of receiving an RF signal from a pickup of the optical disk device, detecting an envelope of the RF signal, asse... | 09/04/2007 |
| 7251201 | Method of searching new writable address for optical recordable medium A method of searching a new writable address (NWA) for an optical recordable medium includes providing an optical pickup head and setting a first search starting point thereof; determining if NWA is located at the latest track and setting a search finishing point of... | 07/31/2007 |
| 7215615 | Minimum delay buffering method, minimum delay buffer device for dynamic write strategy, and CD-RW/DVD-RW system having the same A pattern buffer apparatus for a dynamic write strategy, which buffers non return to zero (NRZ) data patterns in order to generate a recording pulse in a compact disc system, includes a pattern detector which detects a pattern edge and a pattern from the NRZ data; a... | 05/08/2007 |
| 7215614 | Control method of recording speed in optical disc drives The present invention discloses a control method of recording speed in an optical disc drive. Firstly it is determined whether the recording speed is higher than a data transfer rate from the host to the data buffer in the optical disc drive. If so, the recording sp... | 05/08/2007 |
| 7212363 | Magnetic disk apparatus A magnetic disk apparatus formats a single data frame as a single sector. The magnetic disk apparatus includes a read-out control unit that controls to read-out sector data by emulating an existing format (e.g., “512 bytes/sector”), and a write-in control unit t... | 05/01/2007 |
| 7209418 | Method for replacing defective block with good block to record data in optical disc apparatus A method for replacing a defective block with a good block in an optical disk allows data recording operations to be effectively performed. The method temporarily stores data that would have otherwise been recorded in a defective area of an optical disc in a tempora... | 04/24/2007 |
| 7209421 | Optical disk apparatus for detecting wobble signal An optical disk apparatus for driving an optical disk having formed therein sawtooth wobbles of +STW and −STW. A pickup receives a laser beam reflected from the optical disk and supplies a reproduced signal to a wobble signal processing section. The wobble signal ... | 04/24/2007 |
| 7206269 | Optical disk recording/reproducing apparatus with reduced resume time The present invention shortens a time to be elapsed from a recording interruption to a recording restart, thereby realizing a reliable recording restart. In one embodiment, an optical disk apparatus comprises an optical pickup and a processor, which includes a repro... | 04/17/2007 |
| 7196987 | Controller for data recorder A controller for controlling interruptions and restarts when writing data to a recording medium by emitting a laser beam against the recording medium. The controller prevents buffer underrun errors. The laser beam is emitted at a high power level when writing data o... | 03/27/2007 |
| 7194588 | Method for reproducing digital information and digital information recording or reproducing device A method for reproducing digital information includes the steps of: transferring, with a control circuit, information in a hard disk drive to a memory simultaneously with completion of storage of the information in the hard disk drive from outside of a device body, ... | 03/20/2007 |
| 7167427 | Data recorder A data recorder for recording data that prevents buffer overrun errors emits a laser beam against a recording medium to record data. The data has a level that determines the power of the laser beam. When there is a possibility of a buffer overrun, data recording is ... | 01/23/2007 |
| 7149167 | Data recorder A data recorder for recording data that records data in a continuous manner regardless of interruptions. An encoder encodes data that is to be written to a recording medium. A synchronizing circuit synchronizes the data read from the recording medium with the encode... | 12/12/2006 |
| 7149165 | Controller for data recorder A controller for a data recorder for recording data that records data in a continuous manner regardless of interruptions. An encoder encodes data that is to be written to a recording medium. A synchronizing circuit synchronizes the data read from the recording mediu... | 12/12/2006 |
| 7145852 | Method and apparatus for decoding encoded data around a linking area on an optical storage medium A method for decoding encoded data around a linking area on an optical storage medium includes: detecting at least one type of sync patterns within the encoded data; determining an offset value corresponding to the linking area according to the detected sync pattern... | 12/05/2006 |
| 7134876 | Sound system with dedicated vocal channel A karaoke sound system had a mixer that combines the singer's real-time voice signal from a microphone with the pre-recorded background song/music signal from a player, an amplifier that receives the mixed signal from the mixer to provide amplification or gain boost... | 11/14/2006 |
| 7133226 | Data accumulating method and apparatus A data accumulating apparatus, comprising: storage media; receiving means for receiving digital raw data about specific information from an external electronic device; first accumulating means for accumulating the digital raw data received by the receiving means int... | 11/07/2006 |
| 7120103 | Information storage apparatus An information storage apparatus records, reproduces and/or erases information with respect to a recording medium. The apparatus includes a servo error generation detector for detecting a generation of a servo error based on at least one of servo signals including a... | 10/10/2006 |
| 7120710 | Controller for data recorder A controller for a data recorder controls data recording to prevent buffer overrun errors. The data recorder emits a laser beam against a recording medium to record data. The data has a level that determines the power of the laser beam. When there is a possibility o... | 10/10/2006 |
| 7106667 | Data recording device capable of restarting after an interruption When data recording is interrupted, a location at which data have been last recorded is accurately detected and a seamless restart of the recording is achieved even if reproducing errors occur due to scratches or the like on an optical disk. A pattern data that indi... | 09/12/2006 |
| 7092332 | Optical disk and information reproducing apparatus An optical disk for a sampled servo system is provided with a servo area having a synchronization pit serving as a synchronization reference of reproduction; and a data area having a plurality of data pits which records the digital data and a tracking pit which serv... | 08/15/2006 |
| 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 |
| 7057986 | Recording stop processing method and data recording apparatus In a recording stop processing method according to an aspect of this invention, when a recording stop instruction is input and the data size of stream data, which is stored in a storage destination, is smaller than the predetermined data size, dummy data is added to... | 06/06/2006 |
| 7003619 | Memory device and method for storing and reading a file system structure in a write-once memory array The preferred embodiments described herein provide a memory device and method for storing and reading a file system structure in a write-once memory array. In one preferred embodiment, a plurality of bits representing a file system structure is inverted and stored i... | 02/21/2006 |
| 6992957 | Controller of data recorder A controller of a data recorder that records data on a recording medium such that the occurrence of buffer underrun errors are prevented. Data encoded by an encoder is recorded on the recording medium. A decoder decodes the data recorded on the recording medium. The... | 01/31/2006 |
| 6981205 | Data storage apparatus, read data processor, and read data processing method To improve the probability of error correction, thereby generating correct read data. Data is read from the same sector by a number of times and a majority decision is done in the same address, thereby the most frequently read value is regarded as the true data valu... | 12/27/2005 |
| 6975567 | Method and apparatus for copying/moving data on optical recording medium A method and apparatus for copying/moving data on an optical recording medium is disclosed, in which data moves or copies in one disc using a memory and data transmission to a host is omitted when the data moves or copies in one optical disc. To this end, identifica... | 12/13/2005 |
| 6967910 | Information recording apparatus and method for controlling data writing rate based on data transfer rate so as to improve data writing performance An information recording apparatus includes a data writing part that writes data transferred from a host computer onto a data-recordable recording medium, a data writing pause part that pauses writing of the data by the data writing part, a data writing rate change ... | 11/22/2005 |
| 6956799 | Phase discontinuity compensation in a bit-accurate optical drive A bit-accurate optical drive determines an address of a data block stored on a disc (the address being determined from a wobble that is embossed in the disc), and synthesizes header information for the block. When the block is read from the disc, recovered (actual) ... | 10/18/2005 |
| 6894967 | Optical disk recorder for writing data with variable density An optical disk recording apparatus operates on an optical disk having circular tracks which are provisionally written with an index signal used for securing a constant linear velocity of the optical disk from an innermost circular track to an outermost circular tra... | 05/17/2005 |
| 6876608 | Optical disc apparatus An optical disc apparatus includes a pause circuit for pausing data encoders upon receiving a pause signal so that a write operation may be paused without writing dummy data, thereby maintaining data succession. The optical disc apparatus also includes a circuit for... | 04/05/2005 |
| 6853613 | Optical recording medium, and method and apparatus for reproduction An optical recording medium having plural recording layers includes a first recording layer on which first data is to be recorded and a second recording layer on which second data is to be recorded. The first and second recording layers are layered, with the second ... | 02/08/2005 |
| 6847593 | Method for constructing compressed audio file system in a compact disc player A method and apparatus for constructing a file tree in a compact disc player from the file system of a compressed audio CD is disclosed. After determining the target sector for building the file tree of the CD player, the CD player reads into the memory of the CD pl... | 01/25/2005 |
| 6804179 | Information reproducing apparatus capable of performing quick access playback An information playback apparatus which can perform random access playback, reverse playback, shuttle playback, etc. quickly and seamlessly. A signal processing unit stores audio data read out from a disc into a buffer memory, and performs information processing for... | 10/12/2004 |
