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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...
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...
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...
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...
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...
7315497 Method and an apparatus for reproducing information based on reference wobble block and an information wobble block on an information recording medium  
At the time of heterodyne detection, information is reproduced constantly in the optimum condition. A method reproduces information recording medium including a reference wobble block which has a...
7304924 Optical disk device capable of demodulation and verification of address data from land and groove track address systems  
A high-definition optical disk device for recording and reproducing data with respect to lands and grooves of an optical disk. The grooves and the lands of the optical disk are wobbled, and address...
7301889 Optical disc  
An optical disc having track grooves formed in a radial direction of the disc, and with the disc being divided into a plurality of zones, wherein track grooves are formatted into waved patterns,...
7301865 Method and system for time compensation of re-writeable optical media write parameters  
An optical medium storage device improves the usable life of re-writable optical storage mediums, such CD-RW, DVD+RW and DVD-RAM disks, by adjusting write parameters to compensate for time between...
7298684 Disk-like recording medium, disk recording apparatus and disk recording method, and disk playback apparatus and disk playback method  
Disclosed is a disk-like recording medium, a disk recording apparatus and a disk recording method, and a disk playback apparatus and a disk playback method. Disk ID is recorded over a circle of a...
7286452 Apparatus and method for detecting synchronization of address in pre-groove for optical storage device  
An apparatus and method detecting synchronization of address in pre-groove (ADIP), allowing an optical storage device to write data to an accurate location of a disc includes a bit synchronization...
7283456 Reproduction-only recording medium  
In a read-in area on the ROM disc, there are two control-data areas, and the Disc Information recorded in each control-data area comprises a error correction code (ECC (Error Correcting Code) block...
7269114 Method and apparatus for controlling recording to optical disc to cope with shock errors  
A method of controlling recording of data with respect to each track of a once-writable optical disc, includes: detecting whether a shock error occurs during recording of track information; if the...
7269105 Digital audio recording medium and reproducing apparatus thereof  
A DVD audio data structure following high-sound-quality specifications is realized, making the best use of the audio data structure standard in DVD video. A first sample data string created by...
7239585 Information recording apparatus and method, information reproducing apparatus and method, information recording program and information reproducing program, recording medium and information recording medium  
An information recording apparatus encodes distributed information, which is inputted via a network, in an encoding scheme for allowing decode by a plurality of types of players to obtain encoded...
7236435 Address information recording device and recording method and reproducing device and reproducing method  
A method for recording address information to an optical disc ( 5 ) by forming a wobbled groove is provided. The method includes steps S 1 to S 3 . In step S 1 , there is generated address...
7221629 Controller for an optical disk drive, semiconductor integrated circuit and optical disk drive  
A controller for an optical disk drive includes a modulator configured to modulate a record data to be recorded on a optical disk based on a record clock that is a reference clock in recording, and...
7209431 Multilayer record carrier and device for scanning said carrier  
A record carrier has at least two parallel substantially co-extending information layers that are suitable for scanning by a single scanning head. Each information layer has a control block for...
7196983 Information recording apparatus and information recording method  
The present invention provides an information recording method and an information recording apparatus, which are capable of recording reproduction controlling information in information recording...
7193940 Pre-pit signal decoder  
A pre-pit signal decoder includes a shift register, a pattern comparator, a counting unit, an in-sync signal generating unit and a protection unit. The register receives serial pre-pit bits and...
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...
7173890 Wobbling signal demodulation method, wobbling signal demodulation circuit, and optical disk drive  
A wobbling signal demodulation method is disclosed that is capable of fast and precisely demodulating a wobbling signal without increasing cost of the circuit. The wobbling signal is obtained based...
7171156 Method and apparatus for transmitting audio and non-audio information with error correction  
A method and an apparatus for providing digital quality transmission of audio and non-audio information using low cost components and arrangement. The present invention provides for the...
7167436 Optical recording medium having servo area and groove section  
The present invention provides an optical recording medium capable of detecting groove start signals and groove end signals with an inexpensive detection circuit and allowing quick, stable clock...
7167426 Data recording/reproducing method and apparatus including random number generation and data sector scrambling  
In a disc drive device ( 10 ) described as a specific embodiment of the present invention, AC 0 to AC 12 of ADIP cluster address are associated with AU 6 to AU 18 of an address unit. A...
7154840 Recording medium, information recording and reproducing method, and recording and reproducing apparatus  
Conventionally, as in the case of switching between a DVD-R and a DVD-RAM, when the method of record mark arrangement in a track is changed, the physical format of the disk is also changed. This...
7151727 Disc-shaped recording medium, disc-state recording medium cutting apparatus, and disc drive apparatus  
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...
7149163 Recording technique with particular sunchronization data  
Disclosed is a disk-like recording medium, a disk recording apparatus and a disk recording method, and a disk playback apparatus and a disk playback method. Disk ID is recorded over a circle of a...
7139469 Method for recording and reproducing representative audio data to/from a rewritable recording medium  
The present invention writes location information on representative audio sections, each being specified within an audio track by a user, for audio tracks recorded in a high-capacity storage...
7133334 Method and device for interfacing variable-rate sampled digital audio information to a string of uniform-sized blocks, and a unitary medium so produced by a write-interfacing  
For mapping sampled digital audio information onto a linear physical mapping space that is partitioned in a string of uniform-sized blocks, in particular, for variable-rate coded audio information...
7126893 Information recording apparatus and control method thereof  
An information recording apparatus includes a pickup which irradiates a recording light to a disc on which prepits are formed and which outputs return light quantity data, a period determination...
7126892 Data record medium, data recording method and apparatus, and data transmitting method and apparatus  
On a data recording medium which is divided into sectors and can be accessed on the sector unit basis, when encoded data is divided every predetermined length, a header is added, the data is...
7123577 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...
7123555 Information recording medium  
A recording medium is provided, which maximizes the recording capacity and simplifies the configuration of an information recording/reproducing apparatus including a pickup. In the medium,...
7116630 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....
7110333 Disk player  
The present invention discloses a disk player for recording information on a disk and/or reproducing recorded information thereon. The disk player includes a wobble detection unit for detecting a...
7102968 Method and system for time compensation of re-writable optical media write parameters  
An optical medium storage device improves the usable life of re-writable optical storage mediums, such CD-RW, DVD+RW and DVD-RAM disks, by adjusting write parameters to compensate for time between...
7099245 Optical disk, and method and apparatus for reproducing information recorded in optical disk  
An optical disk is provided for recording data of a signal modulated according to a predetermined modulation method in a form of concavo-convex pits. The optical disk includes a first area having a...
7099244 Wobble demodulator and wobble demodulation method  
A wobble demodulator for reproducing digital information from an optical recording medium in which a track is formed in accordance with a wobble signal that is MSK-modulated so as to contain the...
7092335 Data recording or erasing method for an optical recording medium  
For an optical recording medium having a phase change type recording layer on it's a substrate and having as read only area and a writable area in a recording area, a data recording method is...
7092328 Information storage medium and information recording/playback apparatus  
An information storage medium according to an embodiment of this invention includes a wobble track whose wobble period is modulated by multi-frequency shift keying corresponding to playback control...
7088652 Optical recording apparatus  
An optical recording apparatus having a light source and an optical system. The medium is a substrate in the form of a substantially circular disk with grooves and lands alternately formed on the...
7088651 Method and apparatus for detecting land pre-pit address information recorded on optical disc  
An apparatus and a method for detecting address information are provided. The apparatus for detecting address information from an optical disc on which a plurality of sectors are arranged and...
7072259 Recording medium and information storage apparatus  
A recording medium and an information storage apparatus having high formatting efficiency are provided. The recording medium and the information storage apparatus give IDs for data to be stored. In...
7072258 Optical information recording medium, with at least one inconsecutive part, and recording apparatus  
A recordable optical information recording medium having an address t for each sector, comprises: an area A 1 starting from an address t 1 to which access is made only when a recording apparatus...
7072257 Data recording controller  
A controller for recording data on a CD with a DVD recorder. The controller includes an LPP decoder, an ATIP decoder for decoding address information of a CD, and an address converter for...
7068574 Record carrier, playback apparatus and information system comprising a record carrier and a playback apparatus  
An information system according to the invention comprises a record carrier and a playback apparatus. The record carrier has information marks along a track thereof and exhibits first variations...
7065030 Reproduction-only recording medium, reproduction device, reproduction method  
A data-arranging method similar to that of a RAM disk is adopted for a ROM disk to make the ROM disk highly compatible with the RAM disk. According to this method, buffer areas are allocated as a...
7050372 Optical disk device configured to reliably reproduce address information  
An optical disk device which reproduces address information embossed and formed on an optical disk. Return light of laser light is detected by a photodetector which is split into at least two...
7042666 Disk drive having improved timing marks  
A disk drive has timing marks (TMs) on the disk, that are chosen to reduce the probability of misidentification of a TM in the presence of read errors. The disk drive searches for TMs within a...
Matches 1 - 50 out of 140 1 2 3 >