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| Number | Title | Issue Date |
| 8064301 | Disk recording medium, disk drive apparatus, reproduction method, and disk manufacturing method A recording and reproducing area and a reproduction-only area are formed by wobbling a groove formed in a spiral fashion to form a track to be tracked on a disk. The recording and reproducing area has address information recorded by wobbling of the groove and inform... | 11/22/2011 |
| 8054718 | Write-once optical disc, and method and apparatus for recording management information thereon A write-once optical recording medium and a method and apparatus for recording management information on the recording medium, are provided. The recording medium includes at least one recording layer and SRR information on the recording layer. The SRR information pe... | 11/08/2011 |
| 8050156 | Write-once recording medium, recording method, recording apparatus, reproduction method, and reproduction apparatus A write-once recording medium is provided, which comprises a management information area for recording management information for managing a recorded state, and a user data area for recording user data. The user data area is configured to contain at least one record... | 11/01/2011 |
| 8014241 | Information recording method and apparatus An information recording method, including detecting a synchronous signal and first address information from a recording medium, on which the synchronous signal and the first address information have been preformatted in a wobbled groove track, which is divided into... | 09/06/2011 |
| 8000192 | Disc-shaped recording medium, cutting apparatus for same, and disc drive There is provided an optical disc having preformed thereon a spiral wobbled track as a grove and/or land along with data is to be recorded. The track is wobbled for a series of predetermined signal units each composed of an FSK information bit part based on a wavefo... | 08/16/2011 |
| 7948843 | Information recording medium, apparatus and method for recording information, and computer program Disclosed is an information recording medium (100) comprising a first recording layer (L0 layer) which is provided with a first recording track for recording record information, and a second recording layer (L1 layer) which is provided with a second recording... | 05/24/2011 |
| 7911900 | Write-once optical disc, and method and apparatus for recording management information on the write-once optical disc A write-once optical disc and a method and apparatus for recording management information of the write-once optical disc, are provided. The method includes sequentially recording data in the at least one recording-unit in the direction of increasing address; padding... | 03/22/2011 |
| 7864640 | Reproducer and method for controlling reproduction Location information obtained from a positioning system 4 and environmental information such as time, temperature, air pressure and the like measured by an environmental information sensor 6 are associated with the reproduction history of music and are... | 01/04/2011 |
| 7852719 | System and method for generating output signals indicating specific areas on an optical disc utilizing a protection means A system for generating an output signal indicating a specific area on an optical disc is disclosed. The system includes: a detecting circuit, a header signal generator, a protection circuit, a counter and an output signal generator. The detecting circuit detects pr... | 12/14/2010 |
| 7782725 | Optical recording medium and method for formatting the same with improved compatability and consistency The invention relates to an apparatus for formatting an optical recording medium, the optical recording medium having a spare area for replacing a defective area and a defect management area for managing the defective area, the apparatus including a recording/reprod... | 08/24/2010 |
| 7616543 | Disk recording medium, disk drive apparatus, reproducing method, and disk manufacturing method A recording and reproducing area and a reproduction-only area are formed by wobbling a groove formed in a spiral fashion to form a track to be tracked on a disk. The recording and reproducing area has address information recorded by wobbling of the groove and inform... | 11/10/2009 |
| 7573792 | Write-once optical disc, and method and apparatus for recording management information thereon A write-once optical recording medium and a method and apparatus for recording management information on the recording medium, are provided. The recording medium includes at least one recording layer and SRR information on the recording layer. The SRR information pe... | 08/11/2009 |
| 7542389 | Write-once optical disc, method and apparatus for recording management information on write-once optical disc A recording medium, and a method and apparatus for recording management information on the recording medium, are provided. According to an embodiment, there is provided a method for recording management information on a recording medium, the method comprising: deter... | 06/02/2009 |
| 7539098 | Optical information recording medium and recording apparatus A recordable optical information recording medium having an address t for each sector, comprises: an area A1 starting from an address t1 to which access is made only when a recording apparatus performs recording operation; an area A2 starting fr... | 05/26/2009 |
| 7529163 | Information recording apparatus and method, and computer program A disc-shaped information recording medium has a first and a second recording layer. A buffer area is arranged adjacent to a recording area of each of the layers for preventing deviation of the recording position onto/from each of the layers. A first part of the inf... | 05/05/2009 |
| 7505382 | Information recording method and apparatus In an information recording method and apparatus which is capable of improving a recording density of an optical recording medium, a carrier signal is detected in an optical recording medium preformatted as first unit regions by modulating a synchronous signal divid... | 03/17/2009 |
| 7496009 | Method and apparatus for detecting BCA on an optical disc A method and an apparatus for detecting BCA on the surface of an optical disc are disclosed. The method includes utilizing an internal free running clock to detect a sync pattern, starting demodulation of data on detection of sync ID 1 by utilizing the intern... | 02/24/2009 |
| 7483352 | Recording medium reproduction device An abnormality in text data recorded on a CD conforming CD-TEXT format is detected so that a proper display can be created. In the case of text data recorded in a double-byte character code (step 1002), if the text data is XX 00 (step 1006) or 00 XX (s... | 01/27/2009 |
| 7433281 | Address information recording apparatus and method, and address information reproducing apparatus and method A method for recording address information to an optical disc (5) by forming a wobbled groove is provided. The method includes steps S1 to S3. In step S1, there is generated address information composed of a sync signal, address data and ... | 10/07/2008 |
| 7426160 | Device for detecting position information from an optical record carrier An optical record carrier (1) is provided with tracks having a groove (4) wobbled in a transverse direction and predetermined positions (18) along the track. The wobble comprises a substantially monotonous undulation (15). Local excursion... | 09/16/2008 |
| 7423947 | Method and apparatus for CD format decision A method for determining the format of an optical recording medium (1) comprising one or more data or audio tracks or both types of tracks is proposed, the method being robust against partially corrupted data on the recording medium. The method compris... | 09/09/2008 |
| 7417926 | Detector for detecting information carried by a signal having a sawtooth-like shape A detector for detecting information carried by a wobble signal having a sawtooth-like shape with a base frequency of fwob. The detector includes a first band-pass filter having a center frequency close to 2*fwob for filtering the wobble signal... | 08/26/2008 |
| 7414932 | Method of, and apparatus for, recording address information to disc medium In step S1, the address generator generates address information composed of a sync signal which is recorded on an optical disc, address data and an error correction code for the address data, pre-encodes and supplies it to a modulator. At the same time, a car... | 08/19/2008 |
| 7391686 | Disc-shaped recording medium, cutting apparatus for same, and disc drive There is provided an optical disc having preformed thereon a spiral wobbled track as a grove and/or land along with data is to be recorded. The track is wobbled for a series of predetermined signal units each composed of an FSK information bit part based on a wavefo... | 06/24/2008 |
| 7376056 | Method and apparatus for reading address information from an optical disc medium A method for reading address information from an optical disc with a wobbled track groove includes the steps of: obtaining a sine wave address signal, a first address signal representing a first groove region with sine wave wobbled portions and an inverted phase por... | 05/20/2008 |
| 7372792 | Write-once optical disc, method and apparatus for recording management information on write-once optical disc A write-once optical disc, and a method and apparatus for recording management information on the write-once optical disc, are provided. The optical disc includes at least one recording layer, and at least one SRR entry. Each SRR entry corresponds to an SRR and incl... | 05/13/2008 |
| 7362681 | Recording medium type determining apparatus and method for determining presence of wobble on a recording medium A push-pull signal Spp fetched with tracking open is smoothed to a smoothing signal Spp to remove signal components generated wobbling due to radial runout, and the smoothing signal is binarized to compute an autocorrelation value in the autocorrelation computing ci... | 04/22/2008 |
| 7362664 | Optical disk medium and method and apparatus for reading information An optical disk medium includes a track groove thereon. On the optical disk medium, information is recorded along the track groove on a block unit basis. The block unit has a predetermined length. The block unit having the predetermined length includes a number of s... | 04/22/2008 |
| 7355948 | Detector for detecting information carried by a signal having a sawtooth-like shape A detector for detecting information carried by a signal having a sawtooth-like shape. The detector includes a low-pass filter for receiving the wobble signal and filtering the wobble signal to generate a filtered signal, a comparator for comparing the wobble signal... | 04/08/2008 |
| 7356142 | Secure compact disk and player A method for recording data on an optical medium is disclosed. In one embodiment, the method includes receiving a first plurality of frames of data at a Cross Interleave Reed-Solomon Code (CIRC) encoder, encoding the first plurality of frames of data by the CIRC enc... | 04/08/2008 |
| 7355947 | Optical disk device and optical disk In an optical disk of HD-DVD, data is recorded in both grooves and lands. A groove track includes its own data region called a groove (G) track address system formed therein and a land track includes its own data region called a land (L) track address system formed ... | 04/08/2008 |
| 7349302 | Optical disk recording apparatus and optical disk recording method For protecting the recording from shifting in the position, by conducting sync detection, correctly, from land pre pits, in an optical type recording disc, even if sync pattern errors, in more detail, synchronization is conducted on a recording circuit, with certain... | 03/25/2008 |
| 7345985 | Optical disk, optical disk access device and access method An optical disk having an increased data storage capacity and accessible randomly, the positional shift of which can be quickly detected. An optical disk access device and access method are also disclosed. The optical disk (1) has a track (T1) construc... | 03/18/2008 |
| 7342864 | Optical disk reproduction apparatus and optical disk reproduction method There are provided a wobble signal reading unit configured to read a signal corresponding to a wobble formed at a predetermined track from an optical disk on which address information is recorded by applying phase modulation to the wobble formed at the track, an add... | 03/11/2008 |
| 7327658 | Wobble signal processing apparatus The present invention is made to improve the conventional analog processing that is easily affected by variations in semiconductor processing. This invention provides a wobble signal processing apparatus that can reduce the circuit scale and the power consumption as... | 02/05/2008 |
| 7327646 | Optical recording medium and method for formatting the same with improved compatability and consistency An optical recording medium and method of formatting the optical recording medium is disclosed. In the present invention, the location information of the supplementary spare area, if assigned, is reset when the optical recording medium is formatted. The resetting of... | 02/05/2008 |
| 7324423 | Data recording method recorder and data reproducing method and device The present invention is relative with a method for recording further data on a recording medium on which there re pre-recorded data obtained on modulating M-bit data to N-bit data, where M | 01/29/2008 |
| 7317667 | Wobble signal extraction circuit and optical disk device A wobble signal extraction circuit for extracting a wobble signal from a first optical disk signal containing a wobble signal component caused by a wobble formed on a surface of an optical disk and a second optical disk signal containing a wobble signal component of... | 01/08/2008 |
| 7317738 | Data transmission method for embedded data, data transmitting and reproducing apparatuses and information recording medium therefor In a data transmission method for information data containing additional information data therewith, comprising, at a transmitter side, following steps: adding error correction codes for correcting error to said additional informat... | 01/08/2008 |
| 7315500 | Recording medium storing link information and apparatus and method for linking data An optical recording medium storing information for regarding data in the current sector as data in a linking loss area, and an apparatus and method providing linking data. The data link method includes dividing an error correction code block having a predetermined ... | 01/01/2008 |
