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Track data format/layout

Subclass of:

369 - Dynamic information storage or retrieval

369272100 - STORAGE MEDIUM STRUCTURE

369275100 - Optical track structure (e.g., phase or diffracting structure, etc.)

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DocumentTitleDate
20130028067MANUFACTURING METHOD FOR OPTICAL DISC, OPTICAL DISC, PLAYBACK METHOD FOR OPTICAL DISC, PLAYBACK APPARATUS FOR OPTICAL DISC, RECORDING APPARATUS FOR OPTICAL DISC - Address information that has been error correction encoded is recorded on a second version of a recording medium after being transformed such that such that the address decoding cannot be performed by a playback device that is not compatible with the second version of the recording medium. The address decoding for the second version of the recording medium cannot be performed by the incompatible playback device (for example, a playback device that was manufactured to be compatible only with a first version of the recording medium). In other words, in the playback device that is not compatible with the second version of the recording medium, a state is created in which address errors cannot be corrected, so access is impossible (recording and playback are impossible).01-31-2013
20100157782INFORMATION STORAGE MEDIUM AND INFORMATION RECORDING/PLAYBACK SYSTEM - There are provided an information storage medium capable of real-time recording/playback of digital moving picture information, and a digital information recording/playback system using this medium. In a medium that records/plays back data including video data and control information, the control information (DA06-24-2010
20090196158Optical Disk for an Identification Element - The present invention relates to an optical disk comprising: 08-06-2009
20090122691Locking Aid For High Density Bd-Rom Discs - The present invention relates to information carriers in general and high density discs such as Blu-ray discs in particular. According to the invention a system is provided comprising an information carrier (1) and an apparatus for accessing said information carrier The information carrier having recording unit blocks (05-14-2009
20080310292OPTICAL DISK, OPTICAL DISK RECORDING AND REPRODUCING APPARATUS, METHOD FOR RECORDING, REPRODUCING AND DELETING DATA ON OPTICAL DISK, AND INFORMATION PROCESSING SYSTEM - A recording type optical disk on which data is recordable includes a data recording and reproducing area for recording data therein and reproducing data therefrom, and a read-only disk identification information area for recording disk identification information for identifying the optical disk therein. In the optical disk, the disk identification information is formed by removing a reflection film that is formed on the optical disk in a strip shape. The disk identification information includes an inherent disk identifier for each optical disk, and the data recording and reproducing area includes an area for recording encrypted data therein. The encrypted data is encrypted by using information including the disk identification information for identifying the optical disk as a key.12-18-2008
20100039921INFORMATION RECORDING MEDIUM AND INFORMATION RECORDING APPARATUS - An information storage medium according to the present invention has n information storage layers (where n is an integer and n≧3), on which data can be written with a laser beam and which are stacked one upon the other. Each of the n storage layers has a test write zone for determining the recording power of the laser beam. When those n layers are counted from the one that is located most distant from the surface of the medium on which the laser beam is incident, there is a bigger radial location difference between the outer peripheral end of the inner one of the test write zones of i02-18-2010
20090303863Recording medium with a linking area thereon 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 including a data area including at least two data sections and a linking area to link neighboring data sections, the linking area including at least one physical address, and to methods and apparatuses for forming, recording, and reproducing the recording medium.12-10-2009
20090303862Recording medium with a linking area including a synch pattern thereon 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 including a data area including at least two data sections and a linking area to link neighboring data sections, the linking area including at least two frame sync signals, where values of the at least two frame sync signals maintain uniqueness, and to methods and apparatuses for forming, recording, and reproducing the recording medium.12-10-2009
20090103424OPTICAL RECORD CARRIER, AS WELL AS A METHOD AND AN APPARATUS FOR RECORDING A DISC SHAPED OPTICAL RECORD CARRIER - An apparatus is described for recording an optical record carrier (04-23-2009
20090040913Production Method and Production Apparatus of Optical Disc - In order to control a warp of a disc substrate so as to be a desired level, an optical disc production method includes: a step of supplying resin on the disc substrate; a step of mounting the disc substrate on an inside diameter portion of a turntable after supplying the resin; a step of providing an air-gap between an outside diameter portion of the turntable and a portion of the disc substrate that is not mounted; a step of extending the resin by spinning; and a curing step of curing the resin while spinning the disc substrate mounted on the inside diameter portion of the turntable, wherein in the step of extending the resin, a negative pressure is affected on a portion of the disc substrate that is not mounted, and in the curing step, the warp is controlled by curing the resin on the spinning disc substrate while maintaining effect of the negative pressure.02-12-2009
20110058466OPTICAL RECORDING MEDIUM, APPARATUS AND METHOD OF MANUFACTURING OPTICAL RECORDING MEDIUM, AND APPARATUS AND METHOD OF RECORDING/REPRODUCING DATA OF OPTICAL RECORDING MEDIUM - An optical recording medium, an apparatus and method of manufacturing an optical recording medium, and an apparatus and method of recording/reproducing data of an optical recording medium, allocated with a wobble address suitable for a capacity of a high density recording disc, the optical recording medium including a first area and a second area on which data is recorded/reproduced by a recording/reproducing apparatus, the optical recording medium including: a recording unit block on which the data is recorded or reproduced, and a wobble address corresponding to the recording unit block and indicating a location of the recording unit block in the optical recording medium, the wobble address including a plurality of address units (ADIPs), wherein last two bits in the ADIPs in the first area are one of: 00, 10, and 01, and last two bits in at least one ADIP in the second area are 11.03-10-2011
20090268598OPTICAL STORAGE MEDIUM, INFORMATION RECORDING APPARATUS, AND INFORMATION REPRODUCING APPARATUS - An optical storage medium can be provided by which illegal usage of the optical storage medium involving an infringement on the copyright can be prevented effectively without impairment of the functions for reproducing physical format information and optical storage medium manufacturing information. The optical storage medium includes a main information region in which encrypted data information is recorded as a pit row that is capable of being read out by means of light and a control data region. In the control data region, key information for decoding the encryption of the data information, the physical format information and the optical storage medium manufacturing information are recorded by wobbling a groove.10-29-2009
20090268597METHOD AND APPARATUS FOR RECORDING OPTICAL INFORMATION, AND OPTICAL DISK - A method of recording data optically to an optical disk having a plurality of sectors, in which each sector has a region to be recorded with data, the data is recorded in units of blocks, and the block includes a predetermined number of sectors and is a data unit including error correction codes. In recording data related to a content by dividing and recording the data in a plurality of sectors continuously, dummy data to be used for extracting a clock in phase lock loop (PLL) for data reproduction is recorded on a region adjacent before a sector from which data recording is started. The data related to the contents is recorded on sectors following the region recorded with the dummy data.10-29-2009
20090268596INFORMATION RECORDING MEDIUM, INFORMATION RECORDING APPARATUS AND METHOD, AND COMPUTER PROGRAM - An information recording medium (10-29-2009
20090268595INFORMATION RECORDING MEDIUM AND RECORDING/REPRODUCING APPARATUS - On an information recording medium, a first region where first recording regions that are long in a radial direction are disposed at a predetermined pitch with first non-recording regions in between is provided in a preamble pattern region. A second recording region that connects first recording regions that are adjacent in a direction of rotation is provided in the first region. A second non-recording region that is longer in the direction of rotation than a length in the direction of rotation of the first non-recording regions at corresponding same-pattern-radius positions is provided at a position where a read of servo data is carried out following the first region.10-29-2009
20090268594INFORMATION RECORDING MEDIUM, INFORMATION RECORDING DEVICE AND METHOD, AND COMPUTER PROGRAM - An information recording medium (10-29-2009
20090268593Information recording medium, information recording apparatus and method, information reproducing apparatus and method, and computer program - An information recording medium (10-29-2009
20090268592Information recording medium, recording apparatus and recording method - A pre-recording region (10-29-2009
20090231986INFORMATION RECORDING APPARATUS AND METHOD, INFORMATION REPRODUCING APPARATUS AND METHOD, INFORMATION RECORDING MEDIUM, AND COMPUTER PROGRAM - An information recording apparatus (09-17-2009
20090231985DISC RECORDING MEDIUM, DISC DRIVE APPARATUS, AND REPRODUCTION METHOD - First data representing user data and third data use the same error correction codes. The first data has a first error correction block structure and the third data has a second error correction block structure. That is to say, the first data and the third data have their respective error correction block structures proper for them. In particular, the recording density of the third data is made less dense than the recording density of the first data, and the number of correction codes in the first error-correction block is set at a multiple of m whereas the number of correction codes in the second error-correction block is set at n/m times the number of correction codes in the first error-correction block so that a data-piece count in the second error-correction block is also n/m times a data-piece count in the first error-correction block. As a result, it is possible to provide a good technique of recording shipping-time information onto a high-recording-density disc.09-17-2009
20090010145OPTICAL RECORD CARRIER - The present invention relates to an optical record carrier. The optical record carrier has a plurality of tracks disposed substantially spirally and substantially concentrically, each track being adapted for recording and/or reproducing optically readable effects positioned substantially in a groove. In a first aspect, the plurality of tracks are arranged adjacently in a multi-track spiral on the optical record carrier, and a tracking area between the windings of the multi-track spiral is adapted for providing a radial tracking error signal from the optical record carrier. In a second aspect, the plurality of spirals are arranged in concentric consecutive layers similar to an opinion structure on the optical record carrier with one spiral in each layer, and tracking areas between the said layers of the plurality of spirals are adapted for providing a radial tracking error signal from the optical record carrier. The invention also relates to a corresponding optical apparatus and a method for manufacturing a carrier according to the second aspect.01-08-2009
20120113793OPTICAL RECORDING MEDIUM, RECORDING/REPRODUCTION APPARATUS, RECORDING METHOD, AND RECORDING/REPRODUCTION METHOD - An optical recording medium provided with one or a plurality of recording layers includes an adjustment data recording area for recording therein adjustment data used for adjusting focus or spherical aberration of laser light used for recording/reproduction, the adjustment data recording area being disposed at a predetermined position on each of the one or plurality of recording layers, and a determination information recording area for recording therein determination information indicating whether or not the adjustment data has been recorded in the adjustment data recording area in each of the one or plurality of recording layers.05-10-2012
20110026391WRITE-ONCE INFORMATION RECORDING MEDIUM, INFORMATION RECORDING APPARATUS, INFORMATION RECORDING METHOD, INFORMATION REPRODUCING APPARATUS AND INFORMATION REPRODUCING METHOD - According to the present invention, multiple space bitmaps (SBMs #0 and #1 02-03-2011
20110122759Data Recording Apparatus and System Having Sustained High Transfer Rates - According to the invention, techniques for recording data onto recording media at relatively high transfer rates for relatively long periods of time. Embodiments according to the present invention include systems and apparatus capable of an improved sustained rate of data recording onto disk type-recording media, for example. Many embodiments can remove the upper limits of both recording capacity and the number of media that can be used. Select embodiments can be used with different kinds of recording media as well. In a specific embodiment, the area on a hard disk is divided into three areas. A first area can be suitable for sequential recording of continuous data. A second area can be suitable for random recording of discontinuous data. A third area can be used for recording logical sector numbers, coupling logical sector numbers, and file information that are used for marking each of the first and second areas, so that continuous data can be recorded on the hard disk at a high data rate.05-26-2011
20090274033OPTICAL RECORDING MEDIUM AND PRODUCTION METHOD THEREFOR, AND SPUTTERING TARGET AND PRODUCTION METHOD THEREFOR - An optical recording medium includes a substrate having features that define track regions, an optical recording layer disposed on the substrate, and a light-transmitting layer disposed on the optical recording layer. The optical recording layer has a composition of (Sb11-05-2009
20110286320ADAPTIVE WRITING METHOD FOR HIGH-DENSITY OPTICAL RECORDING APPARATUS AND CIRCUIT THEREOF - An optical recording medium is provided, the optical recording medium including a plurality of zones configured to store data corresponding to an adaptive write pulse, the adaptive write pulse including a first pulse, a last pulse, and a multi-pulse train, the adaptive write pulse being different for each of the plurality of zones, the plurality of zones being reflected by a grouping table, the grouping table being configured to generate an adaptive write pulse waveform by varying a position of a rising edge of a first pulse of a mark to be written according to a length of the mark to be written and a leading space, the adaptive write pulse waveform being generated without regard for a trailing space of a present mark being written using the adaptive write pulse waveform, the adaptive write pulse being configured to correspond to the adaptive write pulse waveform, and store rising edge data of the first pulse of the adaptive write pulse waveform varying according to corresponding stored values of lengths of marks to be written. A width of the first pulse is varied by varying the position of the rising edge.11-24-2011
20130021895MANUFACTURING METHOD FOR OPTICAL DISC, OPTICAL DISC, PLAYBACK METHOD FOR OPTICAL DISC, PLAYBACK APPARATUS FOR OPTICAL DISC, RECORDING APPARATUS FOR OPTICAL DISC - Address information that has been error correction encoded is recorded on a second version of a recording medium after being transformed such that such that the address decoding cannot be performed by a playback device that is not compatible with the second version of the recording medium. The address decoding for the second version of the recording medium cannot be performed by the incompatible playback device (for example, a playback device that was manufactured to be compatible only with a first version of the recording medium). In other words, in the playback device that is not compatible with the second version of the recording medium, a state is created in which address errors cannot be corrected, so access is impossible (recording and playback are impossible).01-24-2013
20080279086Record Carrier Comprising a Rom Mark and a Playback Device For Retrieving the Rom Mark - In order to distinguish a duplicated record carrier from an original record carrier a pattern is included in a ROM type record carrier that is oriented perpendicular to the reading direction. During illegal duplication the spatial relationship is disturb which can be easily detected. The patterns can be read out simultaneously by the same single read-out spot by including both patterns within the diameter of the optical spot thus guaranteeing that the read-out patterns are actually still spatially close together. Special patterns can be used that allow an easy detection of disturbances caused by the illegal duplication.11-13-2008
20090147665OPTICAL DISC RECORDING DEVICE AND OPTICAL DISC RECORDING SYSTEM - When recording is carried out in a DVD-RAM, if at least one address mark could have been detected at the header section, after a test light emission for a laser power control is carried out at a GAP section, normal recording is carried out from GUARD06-11-2009
20080247303INFORMATION RECORDING MEDIUM, RECORDING APPARATUS, REPRODUCTION APPARATUS, RECORDING METHOD, AND REPRODUCTION METHOD - An information recording medium is provided, which comprises a plurality of recording layers and a first disc information area for storing parameters relating to access to the plurality of recording layers and formats relating to the plurality of recording layers. The first disc information area is provided in a first recording layer which is one of the plurality of recording layers.10-09-2008
20100118690Systems and Methods for Sector Address Mark Detection - Various embodiments of the present invention provide systems and methods for sector address mark detection. As an example, data detection systems are disclosed that include a sector address mark detection circuit and a sector address mark quality detection circuit. The sector address mark detection circuit receives a data stream and identifies a sector address mark in the data stream. The sector address mark quality detection circuit receives a first sample and a second sample from the data stream corresponding to the sector address mark, and determines a quality of the sector address mark based at least in part on the first sample and the second sample. In various cases, one or more of the samples of the sector address mark up to all of the samples of the sector address mark may be used.05-13-2010
20090207722OPTICAL DISC APPARATUS - An optical disc apparatus searches domain information from information stored on a disc. When the domain information is thereby acquired, the existence of the domain information is presented to outside at a predetermined timing in a reproducing process of the disc. When an access execution command based on the domain information is inputted by a user in response to this presentation, the optical disc apparatus accesses an address specified by the domain information via a network.08-20-2009
20090207721OPTICAL DISC AND OPTICAL DISC DEVICE - An optical disc has a read-only system lead-in area and a recordable data area. Disc boundary information representing a boundary in a radial direction of an area on which capability of recording at a predetermined recording speed is guaranteed is recorded on the system lead-in area while being related to each tuple speed. An optical disc device, upon user's instruction of tuple-speed recording, compares the boundary information related to the instructed tuple speed with a present recording position, performs recording at the instructed tuple speed if the present recording position is on the outside of the boundary, and performs recording at a tuple speed lower than the instructed tuple speed if the present recording position is on the inside of the boundary.08-20-2009
20090141619SYSTEM AND METHOD FOR ENABLING EFFICIENT SMALL WRITES TO WORM STORAGE - According to the present invention, there is provided a method of providing a WORM storage system, the method including a sector-append capability. The method includes receiving data to be written to a WORM storage system. In addition, the method includes identifying a target sector at which the data is to be written. Also, the method includes determining if the received data can be added to the target sector. Moreover, the method includes adding the received data to the target sector if it is determined that the received data can be added to the target sector.06-04-2009
20080279085Optical Disc, Optical Disc Driving Apparatus, Optical Disc Driving Method, Data Processing Apparatus, and Optical Disc Recording/Reproducing Apparatus - By avoiding the problem that in a hybrid optical disc with a standard-density recording area and a high-density recording area, an optical pickup designed to be suitable for the standard-density recording area cannot operate as desired in the high-density recording area and may cause a malfunction, damage to the disc drive or optical disc is prevented and optimal control is enabled. Access operation identification information such as reproducing identification information 11-13-2008
20090279411INFORMATION RECORDING MEDIUM - In an information recording medium comprising at least a substrate, a recording layer, and a resin layer, the substrate is formed with at least a pit corresponding to a read only area 11-12-2009
20080239935Method for recording wobble signals on an optical disc and optical disc on which the wobble signals are recorded - According to an embodiment, the invention is directed to an optical disc having signal tracks including a groove track, in which wobble signals are recorded on at least the groove track. Wobble units of wobble signals are modulated on the groove track, while at least 4 wobble units are used to represent a data bit of “0” or “1” in address information. Data bit of “0” or “1” in address information has a same phase and different phase with regard to alternate data bit at least to distinguish from each other.10-02-2008
20080273449OPTICAL RECORDING MEDIUM - An optical recording medium has a user data area and a lead-out area each having grooves and lands formed thereon. Wobbles are formed on at least one lateral surface of the grooves of the user data area and the lead-out area, and configured such that wobble characteristics are made different between the user data area and the lead-out area. Different types of the wobbles are formed on the grooves of either the user data area or the lead-out area, thereby preventing an optical pickup that performs recording/reproducing, from deviating from the user data area. Also, in a multi-layer optical recording medium, a whole area of a recording layer is configured to have the same condition, thereby preventing deterioration in reproducing and/or recording due to a difference in light power transmittance of another recording layer.11-06-2008
20080285429Side-Channel for Record Carriers with Spiral Tracks - In order to create a record carrier having a side-channel which cannot be copied with a channel-bit recorder, the record carrier (11-20-2008
20080310289Data Recording/Reproduction for Write-Once Discs - A recording method of the present invention includes the steps of: receiving a write instruction which specifies at least a logical sector in which data is to be written; determining whether the logical sector specified by the write instruction corresponds to a recorded physical sector or an unrecorded physical sector (S12-18-2008
20080310291METHOD FOR RECOVERING MANAGEMENT INFORMATION OF A RECORDING MEDIUM AND APPARATUS THEREFOR - A method for recovering disc management information of a recording medium. (a) When the recording medium is not closed, a readable TDMS which is included in an in-use TDMA of TDMAs of the recording medium and is readable is searched for. (b) It is determined whether a piece of information associated with an inconsistency flag of the readable TDMS is reliable. (c) If the associated piece of information is unreliable, at least a detection condition is determined according to the information included in the readable TDMS and the in-use TDMA. (d) A detection procedure, constrained by the at least the detection condition, is performed on the recording medium for determining an update on the piece of information associated with the inconsistency flag. (e) An update TDMS is generated according to the readable TDMS and the update on the piece of information associated with the inconsistency flag.12-18-2008
20080310290Information Recording Medium, Information Recording Apparatus and Method, and Computer Program - An information recording medium (12-18-2008
20080267049Optical Disc Drive - In a recordable data storage medium on which property data was recorded after having been modulated and on which data that is decodable by a cryptographic key to be generated from the property data was recorded, the property data was preferably modulated by a different method from that applied to a read-only data storage medium. Then, an optical disc drive, having no ability to distinguish the recordable data storage medium from the read-only data storage medium, cannot read the recordable data storage medium. Consequently, a greater number of drives should be equipped with the function of recognizing the type of a given data storage medium and the copyright protection function should be consolidated.10-30-2008
20080267048Irreversible Optical Recording Medium by Formation of Bubbles Having a Height Limited by the Gas Source Generating Them - An irreversible optical recording medium comprises at least an active layer presenting a rear face and a front face designed to receive at least an optical writing radiation. The optical writing radiation enables gas bubbles forming write marks to be formed locally in said active layer by means of a layer forming a gas source arranged on the rear face of the active layer. The layer forming the gas source moreover has a thickness less than or equal to 100 nm so as to limit the height of the bubbles formed in the active layer and therefore to improve tracking when read operations are performed. The layer forming the gas source is preferably made of carbon-doped hydrogenated amorphous silicon oxide.10-30-2008
20090052311Data Storage Systems That Implement Sector Sets - A data storage device has a data storage medium configured to store a first version of data in parent sectors. The data storage device is configured to store a second version of the data in child sectors. The child sectors have the same logical block addresses as the parent sectors. A host operating system can read data from or write data to the child sectors by sending logical block addresses and a sector set number to the data storage device. The logical block addresses and the sector set number identify the child sectors. In response to receiving a request to access the child sectors, the data storage firmware identifies physical addresses that correspond to the logical block addresses and the sector set number. The data storage device uses the physical addresses to identify the location of the child sectors.02-26-2009
20090122692Recording medium containing moving picture data and additional information thereof and reproducing method and apparatus of the recording medium - The present invention relates to a recording medium containing moving picture data and additional information thereof and to reproducing method and apparatus of the recording medium. The present recording medium has script files including additional information about moving picture data, e.g., scene descriptive text and introduction of characters, etc. In addition, information linking each script file with a section of moving picture data to be presented with contents of the script file is included in a link data file or is contained in a filename of the script file. In reproduction of the recording medium, a script file linked with presently reproduced moving picture data section is determined and searched for based on the link data file or every filename of the script files, and contents of the found script file are presented together with the presently reproduced moving picture data. Furthermore, previously presented additional information is removed depending on data or filename of the found script file.05-14-2009
20090022044OPTICAL INFORMATION RECORDING MEDIUM AND METHOD OF MARKING BCA (BURST CUTTING AREA) INTO THE SAME - An optical information recording medium includes a read-only information recording portion, and a BCA (Burst Cutting Area) portion formed by laser marking. A reflective film on an information recording surface of the read-only information recording portion and a reflective film on the BCA portion are formed of the same material. The reflective film includes Ag as a main component, and at least one of Nd and Gd, and at least one of Sn and In as components; the reflective film including at least one of Nd and Gd of 0.1 atom % or more and 3.0 atom % or less in total and at least one of Sn and In of 3 atom % or more and 12 atom % or less in total. Recorded information is reproduced from the information recording surface of the read-only information recording portion and a BCA signal is reproduced from the BCA portion, using blue-violet laser reproducing light.01-22-2009
20100142361OPTICAL DISC - An optical disc (06-10-2010
20090129251Recording medium containing moving picture data and additional information thereof and reproducing method and apparatus of the recording medium - The present invention relates to a recording medium containing moving picture data and additional information thereof and to reproducing method and apparatus of the recording medium. The present recording medium has script files including additional information about moving picture data, e.g., scene descriptive text and introduction of characters, etc. In addition, information linking each script file with a section of moving picture data to be presented with contents of the script file is included in a link data file or is contained in a filename of the script file. In reproduction of the recording medium, a script file linked with presently reproduced moving picture data section is determined and searched for based on the link data file or every filename of the script files, and contents of the found script file are presented together with the presently reproduced moving picture data. Furthermore, previously presented additional information is removed depending on data or filename of the found script file.05-21-2009
20090135707INFORMATION RECORDING DEVICE AND METHOD, COMPUTER PROGRAM AND INFORMATION RECORDING MEDIUM - An information recording/reproducing device (05-28-2009
20090201792Optical Disc Recording Device, Recording Method, Optical Disc, and Optical Disc Playback Device - An optical disc recording device includes a recording unit configured to apply optical beams, on an optical disc on which a main-data sequence is recorded in advance by forming recording marks and spaces having lengths corresponding to the main-data sequence on a track center line on an information recording surface of the optical disc, to a desired application position that is displaced in a disc inner-outer circumferential direction by a specific distance from the track center line in a recording mark having a specific length or more or a space having the specific length or more, or in the recording mark and the space each having the specific length or more, and thus locally change a reflectance of the information recording surface, so that a sub-data sequence is recorded on the optical disc.08-13-2009
20080259780OPTICAL INFORMATION STORAGE MEDIUM HAVING A TRANSITION AREA - An optical information storage medium includes a plurality of areas and at least one transition area. Each transition area is located between two adjacent areas. The transition area allows data to be smoothly reproduced from the optical information storage medium at a low error generation rate. Also, since the optical information storage medium provides standards for the transition area, it is compatible with existing optical information storage media.10-23-2008
20100002565SERVO MASTER MAGNETICALLY TRANSFERRING SERVO PATTERNS TO MAGNETIC RECORDING MEDIUM, AND MAGNETIC TRANSFER METHOD USING THE SERVO MASTER - The servo master includes a membrane having a first surface and a second surface; a plurality of stamp areas which are disposed on the first surface, each of the plurality of stamp areas including a magnetic layer patterned with servo patterns to be magnetically transferred to a magnetic recording medium; and a pressing members which are disposed on the second surface, each of the plurality of pressing members being operable to apply pressure to a corresponding stamp area of the plurality of stamp areas.01-07-2010
20090103425OPTICAL RECORDING MEDIUM HAVING READ-ONLY STORAGE AREA AND WRITEABLE STORAGE AREA AND RECORDING/REPRODUCING APPARATUS AND METHOD THEREFOR - An optical recording medium having a read-only storage area and a writable storage area and a recording/reproducing apparatus and method therefor. The optical recording medium is a hybrid disc having both the read-only storage area, which is suitable for mass production of information having the same contents, and the writable storage area on which data can be recorded, updated or added at a user's option. The read-only storage area has a structure that is completely compatible with a digital versatile disc read only memory (DVD-ROM) specification, and the writable storage area is compatible with the recording/reproducing characteristics of a writable DVD specification so that an existing reproducing-only apparatus can read information from the read-only storage area, and data can be recorded in the writable storage area using an apparatus obtained by minimally changing an existing recording/reproducing apparatus while maintaining the physical recording characteristics of the existing recording/reproducing apparatus.04-23-2009
20090116368METHOD AND SYSTEM FOR DETERMINING DISC FORMAT FOR RECOVERY OF DATA RECORDING - A method for determining a disc format is disclosed. Data from at least one address of the disc is retrieved, wherein the at least one address is selected from a plurality of predetermined addresses related to the disc format. The disc format is determined according to the retrieved data.05-07-2009
20100226238OPTICAL DISC, OPTICAL DISC RECORDING APPARATUS, OPTICAL DISC REPRODUCING APPARATUS, INFORMATION RECORDING METHOD, INFORMATION REPRODUCING METHOD, AND INFORMATION RECORDING-REPRODUCING METHOD - A configuration for reading out disc management information easily without errors from a disc in which recording is conducted with data recording densities of a plurality of kinds. An optical disc includes a plurality of data recording areas in which information is recorded with data recording densities which are different from each other. Information of the data recording densities in the data recording areas is recorded in a management information recording area (a BCA area or a PIC area) by using a unique format which does not depend upon the data recording densities of the data recording areas. The divided data recording areas are disposed in the same plane of the disc, or disposed over a plurality of recording layers.09-09-2010
20100149958METHOD AND SYSTEM FOR MODULATION CODING AND SYNCHRONIZATION - The present techniques provide systems and methods for modulation coding of data on optical disks, such as holographic data disks, and techniques for reading that data back from the disks. The techniques involve parsing a bit stream into a sequence of individual bit-patterns, and then using the individual bit patterns to select a symbol, or matrix, from a lookup table of previously selected matrices. The symbols are selected according to predetermined criteria that may help make the disk more resistant to interferences and errors, such as surface scratches, and the like. For example, criteria that may be used to select the symbols are the number of reflective and non-reflective regions within each matrix, and the number of sequential reflective regions, among others. The symbols may be written to the disk in a two-dimensional fashion, e.g., across adjacent tracks, or in a three-dimensional fashion, e.g., across adjacent data layers.06-17-2010
20090116369OPTICAL INFORMATION RECORDING MEDIUM - An optical information recording medium includes a disk-like substrate having a hole in a central portion thereof, and a light-reflective layer, a dye recording layer containing an organic dye, an intermediate layer composed of an inorganic substance, and a light-transmissive layer composed of a resin disposed in that order on one principal surface of the substrate, in which information is recorded/reproduced by irradiation of laser light from the light-transmissive layer side. In the optical information recording medium, the light-transmissive layer covers a surface of the intermediate layer from an inner peripheral edge of the intermediate layer to an outer peripheral edge of the intermediate layer, and a vicinity of an outer peripheral edge of the light-transmissive layer is in contact with the substrate in an annular region extending around an outer peripheral side of the substrate.05-07-2009
20090285085OPTICAL DISC RECORDING DEVICE, DATA RECORDING METHOD, AND DATA RECORDING PROGRAM - An optical disc recording device includes: an optical disc device to record optical recording data onto an optical disc; a recording data assigning unit to divide a recording region on the optical disc into multiple divisions, part as a data region, assign optical recording data thereto; a redundancy data calculating unit to calculate redundancy data for restoring recorded data; a redundancy data assigning unit to take divided regions other than the data region as a redundancy region, and assign the corresponding redundancy data thereto; a recording/playing device having a recording capacity greater than the data region; and a recording control unit configured to record optical recording data in the data region and also at least a part thereof in the recording/playing device, cause the recording/playing device to play the optical recording data recorded therein at the time of calculating redundancy data, and record calculated redundancy data in the redundancy region.11-19-2009
20090040914INFORMATION RECORDING MEDIUM, INFORMATION RECORDING APPARATUS AND METHOD, AND COMPUTER PROGRAM - An optical disk (02-12-2009
20090073861DISK-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 burst cutting area on an optical disk. The circle is divided into n blocks, each of the blocks is divided into m frames, and ID information is recorded in each of the frames with k channel bits.03-19-2009
20090129250INFORMATION RECORDING APPARATUS AND METHOD AND COMPUTER PROGRAM - An information recording apparatus (05-21-2009
20080291810Multi-Layer Three Dimensional Non-Linear Optical Data Carrier and Method of Recording/Reading Data Therein - A non-linear optical data carrier is presented. The non-linear optical data carrier is configured for recording therein information defined by a pattern of spaced-apart marks arranged in virtual data layers. The data carrier medium comprises a sub-stance capable of being excited by a first multi-photon interaction to be switched from its first state into a second state, where the first and second states of the substance provide different response signals to a second multi-photon interaction. The substance when in the first and second states have substantially overlapping linear absorption wavelength peaks, and first and second wavelengths involved in the first and second multi-photon processes as well as the response signals wavelengths are outside the linear absorption spectrum peaks of the substance in its first and second states. The basic size of the marks and spaces is larger in the first than in the second layer. Data layers are recorded by monotically changing the focal plane depth of the recording beam.11-27-2008
20080291811OPTICAL INFORMATON RECORDING MEDIUM AND METHOD FOR MAKING THE SAME - An optical information recording medium that has satisfactory main information recording characteristics and in which burst cutting area (BCA) marks can be formed without damaging a protective layer or a light-transmitting layer is provided. In forming the light-reflecting layer by vapor deposition, sputtering, ion-plating, or the like, part of the region is masked so as to make the thickness and/or material of the light-reflecting layer in a main information recording region where main information is recorded different from that of the light-reflecting layer in a BCA equivalent region. As a result, burst cutting of the light-reflecting layer in the BCA equivalent region becomes easier than in the main information recording region.11-27-2008
20080273448Drive Device - A drive apparatus of the present invention includes: a recording/reproduction section and a drive control section. The drive control section performs a process including: receiving a recording instruction including a location at which data is to be recorded; determining a track among at least one tracks corresponding to the location included in the recording instruction; controlling the recording/reproduction section to record data at a replacement location in the user data area instead of the location included in the recording instruction; determining whether or not the recording of the data at the replacement location in the user data area has succeeded; and when the recording of the data at the replacement location in the user data area has failed, controlling the recording/reproduction section to record the data at a location in the spare area.11-06-2008
20100195476Optical storage medium comprising tracks with positive and negative marks, and stampers and production methods for manufacturing of the optical storage medium - The optical storage medium comprises a substrate layer, a data layer with a mark/space structure arranged in tracks on the substrate layer, and a cover layer. One track comprises positive marks and a neighboring track comprises negative marks. The tracks are arranged in particular as spirals wherein one spiral contains a track with only positive marks and a neighboring spiral contains a track with only negative marks. The positive marks of a track and correspondingly the negative marks of a track are separated each by spaces. The optical storage medium is particularly a read-only optical disc and comprises a mask layer with a super resolution near field structure, wherein the tracks of the data layer are arranged as two spirals, one spiral consisting of positive marks only and the other spiral consisting of negative marks only. For the production of the optical storage medium, a stamper and production methods for a master for a stamper production are provided, comprising a surface with positive and negative marks, which correspond to the respective positive and negative marks of the data layer of the optical storage medium.08-05-2010
20110019526INFORMATION PROCESSING APPARATUS, CONTROL METHOD FOR CONTROLLING INFORMATION PROCESSING APARATUS, CONTROL PROGRAM OF INFORMATION PROCESSING APPARATUS, AND STORAGE MEDIUM STORING CONTROL PROGRAM OF INFORMATION PROCESSING APPARATUS THEREIN - An optical disk apparatus according to the present invention includes: a sub-data forming section for forming, from data to be recorded into an optical disk (01-27-2011
20090052312RECORDING APPARATUS, REPRODUCING APPARATUS, RECORDING METHOD, REPRODUCING METHOD, AND RECORDING MEDIUM - A recording apparatus for recording data on a recording medium having at least one recording layer, includes a loading unit and a recorder unit. On the loading unit, the recording medium is capable of being loaded. The recorder unit is configured to cause the at least one recording layer a physical change to collectively record a plurality of pieces of data on the at least one recording layer of the recording medium loaded on the loading unit, in a thickness direction of the at least one recording layer, such that the physical change of the at least one recording layer is capable of being detected at one time when the recording medium is reproduced.02-26-2009
20090097387WRITE-ONCE TYPE OPTICAL RECORDING MEDIUM AND FABRICATION METHOD THEREOF - To accomplish write-once type optical recording mediums that have excellent recording and reproducing characteristics and producibility and that are capable of being fabricated at low cost. A write-once type optical recording medium 04-16-2009
20120243399MULTI-LAYER OPTICAL DISC, INFORMATION RECORDING METHOD AND INFORMATION REPRODUCING METHOD - According to one embodiment, single-sided dual-layer recordable disc 09-27-2012
20090213719OPTICAL ENCODING DISC AND OPTICAL ENCODER HAVING SAME - An exemplary optical encoding disc includes a plurality of concentric annular tracks. Each track includes a plurality of coding units. Each coding unit includes a light converging portion and a light diverging portion. The light converging portions and the light diverging portions are arranged alternately along a circumferential direction of the optical encoding disc.08-27-2009
20100260034TEST DISC AND DRIVE VERIFICATION METHOD - In a test disc, data (test data) is recorded in such a manner as to fill an entirety of a data region and, next to this test data, border-out data is recorded which contains information indicating that recording is prohibited. By determining whether the data can be played back appropriately from a position in the vicinity of an outer periphery of the disc where playback characteristics are apt to be unstable, whether the data can be played back appropriately from all of the regions is verified. Also, by determining whether it is possible to recognize that test disc is capable of recording, it is verified whether the border-out data can be smoothly acquired from the position in the vicinity of the outer periphery of the disc where playback characteristics are apt to be unstable.10-14-2010
20090141618OPTICAL INFORMATION RECORDING MEDIUM - An optical information recording medium includes a recording layer provided on a cured resin on which a recording mark is formed by the temperature rise around a focal point caused by absorbing a predetermined recording beam converged for recording of information according to the wavelength of the recording beam and from which the information is reproduced, when a predetermined reading beam is emitted for reproducing of the information, based on the optically-modulated reading beam, wherein the recording layer includes an activated recording area that has been activated as a result of being exposed to an activating beam whose light intensity is at a predetermined light intensity level.06-04-2009
20080291812Optical disk - The invention provides an optical disk that enables high-speed reproduction of address signals. A wobble address system for optical disk supports various types of synchronization, such as phase synchronization, bit synchronization, word synchronization, etc., to be established easily with high detection reliability with the use of an self-orthogonal code. Thus, the invention provides a method for easily synchronizing an address signal, i.e., high-speed reproduction of the address signal. Further, by virtue of an efficient modulation system of the address signal and redundancy thereof, it becomes possible to detect address information with high reliability. This capability is particularly effective in optical recording/reproduction with a blue light source whose signal light quantity and reproduction quality are prone to reduce. Moreover, other additional data of the address data is preserved in the wobbles, which provides medium information to a rewritable optical disk without using embossed pits such that a high-reliability disk (with enhanced security) is realized with a low cost and easily.11-27-2008
20090052310OPTICAL DISC REPRODUCTION METHOD AND DEVICE, AND OPTICAL DISC MANUFACTURING METHOD - According to the present invention, there is provided an optical disc player adapted to record a unique ID on a read-only optical disc and positively read the unique ID from the optical disc. The optical disc (02-26-2009
20080285430Information Recording Apparatus and Information Reproducing Apparatus, Information Recording Method and Information Reproducing Method, Information Recording Program and Information Reproducing Program, Information Recording Medium and Recording Medium - To provide an information recording apparatus and so on which can improve convenience of handling even if music information is encoded in an LPCM system with a high quality and recorded therein.11-20-2008
20080198737METHOD OF RECORDING DATA TO AN INFORMATION RECORDING MEDIUM - A method of recording data optically to an optical disk having a plurality of sectors, in which each sector has a region to be recorded with data, the data is recorded in units of blocks, and the block includes a predetermined number of sectors and is a data unit including error correction codes. In recording data related to a content by dividing and recording the data in a plurality of sectors continuously, dummy data to be used for extracting a clock in phase lock loop (PLL) for data reproduction is recorded on a region adjacent before a sector from which data recording is started. The data related to the contents is recorded on sectors following the region recorded with the dummy data.08-21-2008
20080198732Data Recorder And Data Recording Method, And Computer Program - Additional recording is performed on a recording medium without using a VAT technique.08-21-2008
20080253270Optical Data Disc With Multiple Booting Points - A booting procedure can take a long time and typically starts from a lead-in on a main data layer of an optical data disc. A Portable-Blue (PB) disc of the invention, a dual boot disc, includes a second data layer from which application specific optical drives can boot directly. The dual boot disc still conforms to the prior art standard for PB for normal applications. The second boot will cut in booting time for a specific application and will make application software small. The invention is in particular relevant for gaming, for portable devices and relative specific applications.10-16-2008
20080205255Optical disk - The invention provides an optical disk that enables high-speed reproduction of address signals. A wobble address system for optical disk supports various types of synchronization, such as phase synchronization, bit synchronization, word synchronization, etc., to be established easily with high detection reliability with the use of an self-orthogonal code. Thus, the invention provides a method for easily synchronizing an address signal, i.e., high-speed reproduction of the address signal. Further, by virtue of an efficient modulation system of the address signal and redundancy thereof, it becomes possible to detect address information with high reliability. This capability is particularly effective in optical recording/reproduction with a blue light source whose signal light quantity and reproduction quality are prone to reduce. Moreover, other additional data of the address data is preserved in the wobbles, which provides medium information to a rewritable optical disk without using embossed pits such that a high-reliability disk (with enhanced security) is realized with a low cost and easily.08-28-2008
20080205254Content Protection on a Record Carrier - The invention relates to a record carrier having a data zone (08-28-2008
20110134745OPTICAL INFORMATION RECORDING MEDIUM - Disclosed is an optical information recording medium that can solve a problem that a BCA mark becomes unrecognizable in an optical recording medium including a recording layer using an organic coloring matter. A playback signal in a burst cut area comprises a bright-area amplitude level formed upon the playback of a part where no barcode-shaped mark has been formed, a dark-area amplitude level formed upon the playback of a part where a barcode-shaped mark has been formed, and a maximum amplitude level having a protruded waveform formed upon the reproduction of the edge of a barcode-shaped mark. When a portion intermediate between the maximum amplitude level and the dark-part amplitude level is defined as an intermediate level, the intermediate level is lower than the bright-area amplitude level.06-09-2011
20110096654COMPATIBLE OPTICAL RECORDING MEDIUM - A compatible optical recording medium is described, which is designed in such a way that it has the appearance of a read-only optical recording medium for most players and recorders. Further described is a method for manufacturing the recordable optical recording medium. The optical recording medium has an essentially flat recording layer with a first reflectivity at a wavelength specified for a reading recording light beam, which has an alloyed guide track formed of the material of the essentially flat recording layer with a second reflectivity different from the first reflectivity at the specified wavelength.04-28-2011
20100214905Stacking techniques for thin optical data storage media - This disclosure relates to thin optical storage media that may be compliant with conventional DVD drives. Unlike conventional DVDs, however, the described media generally has a thickness profile less than 1.2 mm. The media may further include one or more protrusions protruding from a major surface of the media which define a thickness of approximately 1.2 mm within the clamping area of the media. In some embodiments, the media may further include one or more recesses recessed into a major surface within the clamping area of the media. Two or more optical storage media may be packaged by stacking the media in a configuration that defines an overall stacked thickness that is less than 1.2 mm for each individual medium in the package.08-26-2010
20100067359High-density recording medium and method and apparatus for controlling data playback thereof - Disclosed herein are a high-density recording medium and a method and apparatus for controlling data playback thereof. Playback control information, such as channel bit length information, is recorded in a burst cutting area (BCA) of a high-density optical disc in a wobble type. When the high-density optical disc is reproduced, the playback control information is detected in a push-pull signal detection mode and the optimum data playback operation corresponding to the recording capacity of the optical disc is performed on the basis of the detected playback control information. Alternatively, bit error rates (BERs) are calculated while a plurality of predetermined bit detection modes are sequentially performed, one of the bit detection modes corresponding to the smallest one of the calculated BERs is selected and the data playback operation is performed in the selected bit detection mode. Therefore, it is possible to perform a data playback operation optimal to the recording capacity of a BD-ROM (Blu-ray Disc-ROM) even through disc information (DI) is recorded in a PIC (Permanent Information & Control data) zone of the BD-ROM in a recording format necessitating a decoding process and the recording capacity is any of different values such as 23 Gbytes, 25 Gbytes, 27 Gbytes, etc.03-18-2010
20100067358METHOD OF RECORDING INFORMATION ON A MULTILAYER RECORD CARRIER, AND DEVICE FOR RECORDING ON A DUAL LAYER RECORD CARRIER - Recordable DVD+R and DVD+R/W optical discs with two (or more) information layers are developed to double the data storage capacity and video recording time. A method and device are proposed to make dual layer DVD disc recordings compliant with the dual layer DVD-ROM standard Recording the data in a DVD-ROM compliant way on the dual layer DVD+R or DVD+R/W disc is obtained by shifting the middle zone area towards the inner radius of a disc in such a way that the data zones of both layers are filled up with data.03-18-2010
20090175155OPTICAL DISC, OPTICAL DISC DRIVE, OPTICAL DISC RECORDING/REPRODUCING METHOD, AND INTEGRATED CIRCUIT - A big pattern for a run-in area which allows data reproduction to be performed stably even when the recording density of an optical disc is increased is provided. An optical disc according to the present invention includes tracks, each of which divided into a plurality of recording blocks. Each of the plurality of blocks includes a run-in area and a data area. In the run-in area, a prescribed run-in bit pattern is recordable; and in the data area, bit patterns having a plurality of bit lengths obtained by modulating data as a recording target in accordance with a prescribed modulation rule are recordable. In this optical disc, at least one of spatial frequencies corresponding to the bit patterns having the plurality of bit lengths is higher than a cutoff frequency. The run-in bit pattern recordable in the run-in area includes the bit patterns having the plurality of bit lengths, from which the bit pattern corresponding to the frequency higher than the OTF cutoff frequency has been excluded.07-09-2009
20090175154Disk with Embedded Flash Memory and Disc Drive - A disc has an outer section on which digital media can be recorded and a core in its center in which a flash memory is embedded with the core having a central hole and electrical contacts to the flash memory. A disc drive has a drive spindle that is to extend into the disc core central hole with one of the spindle or spindle hub having electrical contacts to engage with the core electrical contacts so that data can be written into and/or read from the core flash memory by electronic components of the drive.07-09-2009
20100034074INFORMATION RECORDING MEDIUM AND MASTER EXPOSING APPARATUS - Stable focus servo and tracking servo are realized in an information recording medium having a plurality of recording regions having different track pitches and groove shapes.02-11-2010
20120300609RECORDING MEDIUM, REPRODUCTION AND RECORDING METHOD, REPRODUCTION AND RECORDING DEVICE - Obtain an expanded address without altering the bit number of an address which is embedded in a wobble. Generate a virtual bit which is not recorded on a disc, and which is expressed by the disparity from the rules and the presence or absence of information embedded in part or all of the wobble address.11-29-2012
20120155244INFORMATION RECORDING APPARATUS, INFORMATION RECORDING METHOD, AND INFORMATION RECORDING/PROCESSING PROGRAM - An information recording apparatus recording disc structure definition information defining a structure of an optical disc, in management areas of the optical disc including a data area and the management areas positioned on inner and outer periphery sides of the data area, includes: a memory which stores disc structure definition information of a new version including an invalid mark which cannot be interpreted as the disc structure definition information by an information reproducing apparatus and an information recording/reproducing apparatus being non-adaptive; and a recording control element for, when the disc structure definition information of the new version is recorded in the management areas, controlling recording of the disc structure definition information of the new version so the invalid mark is positioned at a position in the management areas in which all or part of disc structure definition information of an old version without the invalid mark needs to be recorded.06-21-2012
20090141617Optical disc - To surely write data readably into a region of a designated address even if an unwritten region exists ahead of the designated address. A step of registering beforehand an address map attached to an unwritten region of the data writing area; a step of judging whether an address located ahead of the designated address for writing data is an unwritten region or a written region; and a step of writing data into the data writing area of the optical disc based on the judgment result, are included. In the writing step, if the address located ahead of the designated address is judged as a written region, data writing is performed starting from a region of the designated address, and if the address located ahead of the designated address is judged as an unwritten region, the data writing is performed to unwritten regions including the aforementioned unwritten region.06-04-2009
20100246372Combination Type Optical Disk Medium, Its Reproduction Method And Optical Disk Apparatus - A combination type optical disk medium and recording or reproducing method in which the medium include first and second recording layers based on different recoding densities. First and second volume spaces are formed to the first and second recording layers, respectively. Each volume space includes identification information of a head or end of the volume space, and an area for data. One of the volume spaces is recorded with identification information of the other volume space.09-30-2010
20090059777ANGULAR AND RADIAL LOCATION DETERMINATION IN A CONTROL SYSTEM - In accordance with various embodiments, an angular location of a first servo field along an annular track is determined in relation to a difference between a first code value of the first servo field and a second code value of a second servo field along the track. A radial location of the track is obtained in relation to the determined angular location of the first servo field.03-05-2009
20120176882INFORMATION RECORDING MEDIUM, AND RECORDING METHOD AND REPRODUCING METHOD THEREOF - An information recording medium in which bottoms of a guide groove and a pit array formed on a disc substrate are allocated on a same flat plane and shaped in flat. Further, in a transition area from a pit array to a guide groove or from a guide groove to a pit array, the information recording medium is provided with an intermediate area composed of a pit array of which height changes from a height between a bottom and a side of a groove to another height between the bottom and a side of the pit array.07-12-2012
20090092034OPTICAL INFORMATION RECORDING MEDIUM - An optical information recording medium includes: a recording area on which an interfering beam formed where a first beam and a second beam whose converging angle is smaller than that of the first beam overlap each other is recorded as a hologram, the first and second beams being emitted from the same light source with the first beam directed to one surface and the second beam directed to the other surface; a first base area that covers the recording area's one surface to which the first beam is emitted, and allows the first beam to pass therethrough; and a second base area that is made thicker than the first base area, covers the recording area's other surface to which the second beam is emitted, and allows the second beam to pass therethrough.04-09-2009
20100008210Recording medium with a linking area thereon 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 including a data area including at least two data sections and a linking area to link neighboring data sections, the linking area including user data and parity data, and to methods and apparatuses for forming, recording, and reproducing the recording medium.01-14-2010
20090034406OPTICAL INFORMATION REPRODUCING SYSTEM - An optical-information reproducing system is provided, in which the tracking capability of an optical pickup can be increased, and in which the number of occurrences in which the optical pickup fails to track a groove can be reduced, by increasing a gain margin and by ensuring the gain margin. In the optical-information reproducing system, an optical-information recording medium is rotated at a fixed linear velocity of about 3.49 m/s, and the optical pickup is caused to track the groove to irradiate the groove with laser light, whereby information recorded on the optical-information recording medium can be reproduced. A higher-order resonance frequency of the optical pickup that is generated when the optical pickup is caused to track the groove can be made lower than a wobble frequency that is reproduced using the groove without performing rotation control on the optical-information recording medium.02-05-2009
20090016205Optical Recording Medium and Method for Reproducing Information From Optical Recording Medium - An optical recording medium includes a substrate, a first dielectric layer, a recording layer, a second dielectric layer, a super-resolution layer, and a third dielectric layer, which are provided in that order. The super-resolution layer is formed of a material configured such that voids are generated when the material is irradiated with DC light at a predetermined irradiation power for 1 to 300 seconds. Therefore, super-resolution reproduction can be made such that the irradiation power of a readout laser beam does not depend on the size of a recording mark.01-15-2009
20080298220OPTICAL DISK, OPTICAL DISK MASTERING METHOD AND OPTICAL DISK PLAYBACK APPARATUS - In an optical disk according to one embodiment of this invention, the actual shortest mark length recorded on the optical disk is set equal to or smaller than L12-04-2008
20080298221OPTICAL RECORDING MEDIUM, MANUFACTURING METHOD FOR OPTICAL RECORDING MEDIUM, AND REPRODUCING METHOD FOR OPTICAL RECORDING MEDIUM - An optical recording medium includes a main-information area in which a metal reflection film is formed on a substrate where a row of pits is formed as main data, and a sub-information area in which is recorded medium identification information, which is used to identify the optical recording medium individually, by removing the metal reflection film partially and forming a plurality of reflection-film removed areas. Information is reproduced by irradiating the metal reflection film with a beam of light. In the sub-information area, a row of pits or a guide groove is formed on the substrate, and a track pitch of the row of pits or the guide groove is at least 0.24 μm wide and at most 0.45 μm wide.12-04-2008
20120287768Disk with Embedded Flash Memory and Disc Drive - A disc has an outer section on which digital media can be recorded and a core in its center in which a flash memory is embedded with the core having a central hole and electrical contacts to the flash memory. A disc drive has a drive spindle that is to extend into the disc core central hole with one of the spindle or spindle hub having electrical contacts to engage with the core electrical contacts so that data can be written into and/or read from the core flash memory by electronic components of the drive.11-15-2012
20100202279Recording Medium Having a Substrate Containing Microscopic Pattern of Parallel Groove and Land Sections and Recording/Reproducing Equipment Therefor - An information recording medium 08-12-2010
20100202278RECORDING MEDIUM, PLAYBACK APPARATUS, PROGRAM, AND PLAYBACK METHOD - A BD-ROM contains a plurality of titles which can be branched among, and a Java application. The Java application is a program described in a programming language for a virtual machine. A life cycle where execution by the virtual machine is enabled is predetermined. Each of the titles contains an application management table indicates an application that has a life cycle bound to the title.08-12-2010
20100202277INFORMATION RECORDING METHOD AND APPARATUS, INFORMATION RECORDING MEDIUM, AND INFORMATION RECORDING MEDIUM MANUFACTURING METHOD AND APPARATUS - Content information (CI) is recorded, and then control information including an encryption key is recorded. The area in which the content information (CI) is written is shifted with respect to the user area (UIA) in a playback-only disc. The control information (SI) is written with an identical shift. As a result of the shift, content information (CI) or dummy data (DD) is written in the area (SIA) in which control information is recorded in a playback-only disc. Information indicating the value of the shift is selected randomly and deleted when the disc is removed from the recording apparatus. When encrypted content is downloaded and recorded on a recordable optical disc, the complete content can be recorded on the disc correctly just once.08-12-2010
20100202276RECORDING MEDIUM, ADDRESS GENERATING AND DETECTION METHOD, AND REPRODUCTION AND RECORDING APPARATUS - A recording medium, an address generating method, an address detection method and a recording and reproduction apparatus capable of extending the wobble address without any considerable wobble restructuring are disclosed. Virtual bits not recorded in the disc and expressed by the difference of the rule or the presence or absence of the information embedded in a part or the whole of the wobble address are generated. Thus, the extended address can be obtained without changing the number of bits of the address embedded in the wobble.08-12-2010
20130201813RECORDABLE OPTICAL DISC, RECORDING DEVICE, AND RECORDING METHOD - The present invention is to realize a proper inner zone layout in a quadruple-layer disk.08-08-2013
20080232232Information Recording Medium, Information Recording Apparatus And Method, And Computer Program - At least a first recording layer (L0 layer) and a second recording layer (L1 layer) are provided. In the first recording layer, a first recording track path (a groove: a guiding groove) is formed for recording recording information. The second recording layer is arranged on the first recording layer and has a second recording track path (a groove: a guiding groove) formed in an opposite direction to the first recording track path for recording recording information. On an edge part on one side of the second recording layer, a first buffer area (09-25-2008
20080232231Write-Once-Type Recording Medium, Recording Apparatus and Method for the Same, Reproducing Apparatus and Method for the Same, and Computer Program - A write-once-type recording medium (09-25-2008
20080225685INFORMATION RECORDING MEDIUM, INTEGRATED CIRCUIT, RECORDING/PLAYBACK APPARATUS, COMPUTER PROGRAM, AND INFORMATION RECORDING/PLAYBACK METHOD - An optical disk 09-18-2008
20080225684INFORMATION RECORDING MEDIUM, INTEGRATED CIRCUIT, RECORDING/PLAYBACK APPARATUS, COMPUTER PROGRAM, AND INFORMATION RECORDING/PLAYBACK METHOD - An optical disk 09-18-2008
20080225683INFORMATION RECORDING MEDIUM, INTEGRATED CIRCUIT, RECORDING/PLAYBACK APPARATUS, COMPUTER PROGRAM, AND INFORMATION RECORDING/PLAYBACK METHOD - An optical disk 09-18-2008
20080225682WOBBLE INFORMATION RECORDING METHOD, INFORMATION RECORDING MEDIUM, AND RECORDING AND REPRODUCTION METHOD AND APPARATUS THEREOF - An optical disk and a method for identifying the optical disk are provided which make it possible to identify a recording system of the optical disk easily in a short time by a recording and reproduction apparatus when a groove-recording system and a land-recording system are both employed in one kind of optical disk, for, example, a BD-R. Specifically, the polarity upon reproducing the wobble information is made to be the same in both of the optical disk of groove-recording system and the optical disk of land- recording system. The recording system of the optical disk that shows the same wobble polarity irrespective of the recording system can be easily detected by finding a tracking polarity that can recognize the wobble information by changing the tracking polarity, whereby the start-up time of the recording and reproduction apparatus can be shortened.09-18-2008
20080198736METHOD OF RECORDING DATA TO AN INFORMATION RECORDING MEDIUM - A method of recording data optically to an optical disk having a plurality of sectors, in which each sector has a region to be recorded with data, the data is recorded in units of blocks, and the block includes a predetermined number of sectors and is a data unit including error correction codes. In recording data related to a content by dividing and recording the data in a plurality of sectors continuously, dummy data to be used for extracting a clock in phase lock loop (PLL) for data reproduction is recorded on a region adjacent before a sector from which data recording is started. The data related to the contents is recorded on sectors following the region recorded with the dummy data.08-21-2008
20080198735METHOD OF RECORDING DATA TO AN INFORMATION RECORDING MEDIUM - A method of recording data optically to an optical disk having a plurality of sectors, in which each sector has a region to be recorded with data, the data is recorded in units of blocks, and the block includes a predetermined number of sectors and is a data unit including error correction codes. In recording data related to a content by dividing and recording the data in a plurality of sectors continuously, dummy data to be used for extracting a clock in phase lock loop (PLL) for data reproduction is recorded on a region adjacent before a sector from which data recording is started. The data related to the contents is recorded on sectors following the region recorded with the dummy data.08-21-2008
20080198734METHOD OF RECORDING DATA TO AN INFORMATION RECORDING MEDIUM - A method of recording data optically to an optical disk having a plurality of sectors, in which each sector has a region to be recorded with data, the data is recorded in units of blocks, and the block includes a predetermined number of sectors and is a data unit including error correction codes. In recording data related to a content by dividing and recording the data in a plurality of sectors continuously, dummy data to be used for extracting a clock in phase lock loop (PLL) for data reproduction is recorded on a region adjacent before a sector from which data recording is started. The data related to the contents is recorded on sectors following the region recorded with the dummy data.08-21-2008
20080198733INFORMATION STORAGE MEDIUM, INFORMATION RECORDING METHOD, AND INFORMATION REPRODUCING METHOD - According to one embodiment, an information storage medium comprising a lead-in area, and a data area, wherein the lead-in area includes a control data zone storing physical format information which includes first information common to book types, second information peculiar to a book type, and third information peculiar to each kind of second information. The first information includes byte information indicating the book type and a version number, and the second information includes byte information indicating the major digit of a revision number and a disc indicator.08-21-2008

Patent applications in class Track data format/layout