Abstract: Provided is a medium capable of implementing a large-capacity recording at low cost per bit. A medium including a network of metal wires and recording materials each provided at an intersection of the metal wires. Surface plasmons are made to propagate along the metal wires. Two surface plasmons are made to propagate in two different directions and to collide with each other at a certain position. Multiple-layer recording is carried out by changing the recording materials at the certain position.

Abstract: According to one embodiment, a pit having a shape wherein the shapes of the top of a recording mark (recording start position) and the end of the recording mark (recording end position) are symmetrical can be formed on a stamper master with high reproducibility. As a result, the noise level/jitter degree of the reproduction signal obtained by reproduction from an optical disc as a final product can be reduced, thereby manufacturing at low cost the optical disc from which a signal can be stably reproduced.

Abstract: A method of obtaining directivity in an optical waveguide includes the steps of falling incident light on surface of diffuse reflection members arranged at a center portion of the optical waveguide, generating a first table relative to an amount of emitted light that is acquired at a circumference of the optical waveguide by controlling at least one of an image control factor for changing an image of the incident light and a coordinate control factor for changing coordinates of the incident light with them being changed, and generating a second table relative to a pattern of the light which is incident to the diffuse reflection member by seeking for a combination of the image and the coordinates of the light based on the generated first table.

Abstract: The present invention relates to a digital audio layer and an audio content file management method of a digital audio player. This method writes address of an recording area containing descriptive information such as title of a song and a singer's name for each stored audio file in a file management information area for a corresponding audio file. Then, descriptive information can be directly searched and displayed more quickly using the written address if an audio file is selected.

Abstract: Method for the bidirectional transmission of data between one or more textile machines (1) producing cross-wound bobbins and/or one or more same-level and/or higher level control systems with a device (2) for transmitting data to a transport medium, which is used for the transporting of data located on the transport medium, the transport medium being in operative connection with the textile machine (1) producing cross-wound bobbins to transmit data via the device (2). According to the invention, a a memory, a hard disc, a magnetic tape, a writable contact disc (CD), a writable digital versatile disc (DVD), a magneto-optical disc (MO disc), a minidisc (MD) or a digital memory card provided in a mobile telephone or a palm-top computer (personal digital assistant) are used as the transporting medium and the device (2) is integrated in an exchangeable manner in the textile machine (1).

Abstract: If the read speed is increased while high-frequency modulated carrier is fixed at a constant frequency, it becomes difficult to separate the read signal from the carrier by using bandwidth limitation of the analog system because the upper limit of the read signal band nears to the carrier frequency. Moreover, if the separation between them is eased by raising the carrier frequency, a problem that write-waveform controls become difficult arises. However, the carrier amplitude can be suppressed simultaneously preventing leakage to the read signal band by converting the carrier frequency into the stop-band of the adaptive equalizer by making the use of aliasing that occurs at the A/D conversion.

Abstract: An information recording medium (10, 301) contains content information and a judging program which is executed by an information reproducing device for reproducing the content information and judges whether the information reproducing device is authorized.

Abstract: 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 recording area. At least one session is configured to contain at least one of the at least one recording area. The management information contains range information indicating a recording range of the at least one recording area and identification information for identifying the recording area located at a boundary of the session.

Abstract: A player is provided that is capable of playing discs of either a first or a second configuration. Both types of discs can be double-sided optical discs formed with data tracks. In one configuration, the tracks on one side follow one spiral while the tracks on the other side follow a second spiral, the two spirals being oriented in opposite directions as viewed from the respective sides, and therefore being mirror images of each other. This allows data to be read by a player seamlessly from both sides of the disc without changing the direction of rotation of the disc. In the other configuration, the tracks follow identical spirals. The disc is then rotated in one direction for one side and the other direction for the other side.

Abstract: When scenes of a story are divided and dubbed to a plurality of recording media, the recording media are added with information about a total number of recording media used and sequential numbers of the recording media.

Abstract: The present invention provides an optical recording medium including a substrate and a recording layer on the substrate having a squarylium metal chelate compound with a central metal. The recording layer includes a mixture of squarylium metal chelate compounds having ligands of the same type as well as metals of two or more types as the central metal. It is preferable that the recording layer includes a squarylium metal chelate compound having a bivalent metal as its central metal and a squarylium metal chelate compound having a metal other than a bivalent metal as its central metal.

Abstract: An information storage medium includes an area in which updated disc-related information and recording-related information updated with a change in at least one of a disc version number and a recording speed is recorded along with existing disc-related information and recording-related information. The existing disc-related information and recording-related information are recorded, and the updated disc-related information and recording-related information is recorded in an area in which the existing disc-related information and recording-related information is recorded. Accordingly, data can be recorded/reproduced on/from a new version of information storage medium even using an existing drive.

Abstract: A small form factor disc drive is structured to hold and play an optical data storage disc measuring approximately 32 mm in diameter and containing 1 GB of data per layer. The disc drive contains a blue wavelength laser, an objective lens having a numerical aperture in the range of 0.70-0.78 and conventional DVD-compatible controller electronics. This unique combination of elements allows a full-length movie or a video game to be displayed with DVD-quality on a cell phone or other portable hand held device.

Abstract: A recording medium, such as a high-density and/or optical recording medium including segment information recorded thereon, and apparatus and methods for recording to and reproducing from the recording medium, in order to improve data protection, data management and/or reproduction compatibility. The recording medium may contain at least one segment area which is an area on the disc controlled by a plurality of valid PACs and if the designated segment areas overlap with one another, control information of the respective PACs which control the overlapped area may be applied to control the overlapped area.

Abstract: A recording medium in which data supplied from an information processing device is recorded includes: position detecting means for detecting a position of the recording medium; user authentication means for authenticating a user intending to use the data; recording means for recording data use limitation information; and data use limitation control means for controlling the limitation on the user's use of data on the basis of the data use limitation information.

Abstract: A terminal transmits disk identification information and user information to a content delivery server for purchase of initial content in the case where the content to be stored in an optical disk is provided to a user. The user information and the content delivered by the content delivery server are written on the optical disk. The optical disk storing the initial content is set in the terminal for purchase of additional content. The terminal transmits, to the content delivery server, disk identification information, the user information and content information. The content delivery server determines whether or not the purchase of the additional content is authorized. When the content delivery server determines that the purchase of the additional content is authorized, the content delivery server delivers the additional content to the terminal. The terminal writes the additional content on the optical disk.

Abstract: A method for providing a locally rough surface which is spatially structured on micrometric and/or nanometric scale and is formed by a substrate, so as to obtain a product. The method comprises the steps of flattening and/or smoothing the rough substrate in preset regions.

Abstract: In a super-resolution optical disk for the purpose of achieving an increase in the density of recording data by reproducing a recording mark smaller than optical resolution, the optimum reproduction power needs to be determined since the quality of a super-resolution reproduced signal strongly depends on the reproduction laser power. However, since the track error signal required for tracking servo also depends on the reproduction power, there is a need for a method for determining the reproduction power taking into account both the stabilization of tracking servo and a quality improvement of the reproduction signal. The reproduction power is changed under conditions with focusing servo applied but without application of tracking servo. Thereby, a cross track signal is detected to identify a reproduction power region that leads to quality improvement of both a reproduction signal and a track error signal.

Abstract: A cleaning disc for a media reading device having a laser lens. The cleaning disc includes a first surface configured to face the laser lens, a brush extending outwardly from the first surface, and a recess in the first surface configured to receive at least a portion of the brush when the brush contacts the laser lens during a cleaning operation. Each brush is defined by a strand of material that includes opposite ends. A first end of the material extends through a first aperture to define a first brush and a second end extends through a second, spaced apart aperture to define a second brush. A middle portion of the strand of material extends along a second surface of the cleaning disc between the first and second apertures, and is covered by a cover.

Abstract: The present invention is a BD-ROM having AVClips and PlayList information pieces, which are playback paths for the AVClips, recorded thereon. In addition, the BD-ROM also has multiple playback paths and dynamic scenarios recorded thereon. The dynamic scenarios instruct a playback device to play a digital stream using the playback paths. The dynamic scenarios include selection procedures (IF-statement blocks) which cause the playback device to compare a constant and a register-stored value indicating a user's age set on the playback device, (PSR(13)), and to select a playback path from among the multiple playback paths according to the result of the comparison.

Abstract: In case a convex portion acting as a protector is formed on a signal face of a disc by a liquid material such as radiation cure resin, two substantially concentric concave portions are preliminarily provided on a substrate. A liquid material is dripped onto a region interposed between the concave portions and is cured such that the convex portion having desired height and width can be formed on the region.

Abstract: A recording medium (100) is provided with: an element layer including a semiconductor element (110) and an emission element (130), which emits light on the basis of an instruction from the semiconductor element; and a recording layer (120) in which readable predetermined data is recorded by irradiating a light beam.

Abstract: The present invention provides an information recording medium in which an access unit including basic data and extension data is recorded, so as to allow a decoder that decodes only basic data to process the access unit which includes the basic data and the extension data for the next generation. The information recording medium is an information recording medium on which a stream, having plural access units and which includes at least one of image and audio, is recorded, wherein: each of the access units has: a first packet which includes basic data; and a second packet which includes extension data related to the basic data; the basic data is data that can be decoded in a completed state without requiring the extension data and the extension data is data for improving the quality of data generated from the basic data; and the stream includes information which indicates attributes of the first packet and the second packet.

Abstract: A recording medium that technically makes it not only impossible to infringe copyrights but possible for a buyer who properly bought contents to personally freely reproduce and enjoy the contents. A recording medium comprises a first recording region (3) where the contents encrypted by a contents key are recorded in advance, a second recording region (5) where a data providing a basis for the contents key is recorded in advance and a third recording region (4) that allows the encrypted contents key obtained by encrypting the contents key generated from the data providing a basis for the contents key by means of identification information on a user to be recorded therein.

Abstract: An information recording medium includes a reproduction-dedicated area (160) where first recording information (60-1, etc.) is recorded in such a manner that its reproduction will not be disabled when it is reproduced, and a number-of-reproductions limit area (150) where second recording information (50-1, etc.) is recorded in such a manner that its reproduction will be disabled when a predetermined number of reproductions are performed. The second recording information (50-1, etc.) is correlated with the first recording information (60-1, etc.).

Abstract: Disclosed is an apparatus for reproducing main data under an optimum reproduction environment. The reproducing apparatus includes a readout unit (20) for reading out predetermined main data and spatial characteristic data, made up of the information on characteristics of a space in an environment different from the environment under which the main data is to be reproduced, from a recording medium (1) on which the main data and the spatial characteristic data have been recorded. The reproducing apparatus also includes a processing unit (25) for performing predetermined processing for reproduction of the main data, based on the spatial characteristic data read out by the readout unit (20).

Abstract: A universal numerical disc comprising an essentially single moulded generally planar part having a printing side and a readable side carrying encoded data. The moulded part has a central opening and a ring-shaped area with increased thickness, disposed concentrically around the central opening at the side of the reading side, which reading side is provided with a protective resin coating.

Abstract: A write-once read-many information recording medium is provided, which is capable of easily searching for a latest DDS and a latest defect list. At least one disc management working area is sequentially allocated in a predetermined direction on the write-once read-many information recording medium of the present invention. The latest defect list and the latest DDS are provided in a recorded disc management working area neighboring a border between the recorded disc management working area and an unrecorded disc management working area, where the latest defect list precedes the latest DDS in the predetermined direction.

Abstract: A system and method form a nanodisk that can be used to form isolated data bits on a memory disk. The imprint stamp is formed from first and second overlapping patterns, where the patterns are selectively etched. The selective etching leaves either pits or posts on the imprint stamp. The pits or posts are imprinted on the memory disk, leaving either pits or posts on the memory disk. The pits or posts on the memory disk are processed to form relatively small and dense isolated data bits. Instability of the isolated data bits caused by outside magnetic and thermal influences is substantially eliminated.

Abstract: It is made possible to appreciate a material such as a single musical composition, a single video, and the like in various states. There is provided an optical head 31 for reading out contents data such as a musical composition, a video, and the like, metadata for arranging the contents data, and information for specifying the contents data from a CD-R 11 to which they are recorded. There is provided a circuit 35 for outputting the contents data read out by the optical head and data arranged by the metadata together.

Abstract: The invention relates to a method and a recording device for easy and quick access to record carrier management information stored on the record carrier itself. The invention further relates to a record carrier for use in such a method and recording device.

Abstract: The present invention is configured that specific information used for determining whether or not to create a folder with a name generated in accordance with a given rule has been previously written to an information recording medium, and that an information recording apparatus reads the specific information from the information recording medium, and only in the case where the specific information has been written, the information recording apparatus automatically generates a name of a folder in accordance with a given rule and writes the information to the folder. Thus, the user can store the information in the folder with the consistent name that facilitates the user to search and manage the information.

Abstract: A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded.

Abstract: A joining structure of a disc medium and a multifunctional card, the main feature of which is to provide a multifunctional card adhered to one side of a disc medium, wherein the multifunctional card having a hole with a diameter no less than that of a mounting hole of the disc medium. Besides, after the disc medium and the multifunctional card are joined, the thickness of the joining structure is 0.7-1.2 mm, so that it can be carry-on and has no influence on the playing of the disc medium in a disc medium player.

Abstract: A recording/reproducing method and recording/reproducing apparatus, which use an information storage medium by adaptively preparing a standard for distinguishing bit 0 from bit 1 of data read from a holographic information storage medium, and a holographic information storage medium. At least one record unit data is recorded on the holographic information storage medium. The record unit data is divided into at least one sub area, and information about the distribution of bits included in the sub area is arranged in the sub area.

Abstract: A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded.

Abstract: Provided is an information storage medium using nanocrystal particles, a method of manufacturing the information storage medium, and an information storage apparatus including the information storage medium. The information storage medium includes a conductive layer, a first insulating layer formed on the conductive layer, a nanocrystal layer that is formed on the first insulating layer and includes conductive nanocrystal particles that can trap charges, and a second insulating layer formed on the nanocrystal layer.

Abstract: In a patterned perpendicular magnetic recording medium, embodiments of the present invention provide a magnetic head in which magnetic field to be applied to adjacent tracks can be suppressed and a recording device equipped with the magnetic head. In one embodiment of the present invention, a sum of a width Pw of a main pole of a magnetic head and distances between right and left magnetic substances on a width-directional side of tracks and the main pole, so-called widths of side gap lengths s_g1—1 and s_g1—2 is, in a magnetic recording medium having a soft-magnetic underlayer, made to be not more than a sum of a width w_land of a convexity or land of the soft-magnetic underlayer and widths w_groove—1 and w_groove—2 of concavities or grooves adjacent to the land on both its sides.

Abstract: In a method for manufacturing a bearing member which is made of a porous material and has dynamic pressure grooves formed by electrochemical machining, the bearing member is impregnated with liquid such as hydrosoluble liquid or water prior to electrochemical machining. Since the hydrosoluble liquid or water is retained due to capillary force in the bearing member for which electrochemical machining is to be performed, the hydrosoluble liquid or water is not replaced with an electrolyte used in the electrochemical machining. Thus, the step of removing the electrolyte after electrochemical machining can be omitted, increasing production efficiency. Moreover, the bearing member is free from a trouble of rust as the electrolyte does not remain in the bearing member. Since the hydrosoluble liquid or water exhibits excellent affinity for the electrolyte, it does not harm processing accuracy in electrochemical machining and can be easily removed after electrochemical machining.

Abstract: An information recording medium having at least a read only area and a recording and reproducing area is composed of at least: a substrate; a recording layer formed on the substrate so as to record and reproduce information; and a light transmission layer having transparency formed on the recording layer. The information recording medium is further characterized in that a wobbling groove corresponding to the read only area and another wobbling groove corresponding to the recording and reproducing area is formed on the substrate without overlapping with each other, the recording and light transmitting layers are continuously adhered over at least two areas of the read only area and the recording and reproducing area, reflectivity of the recording layer is more than 5%, and a push-pull signal output T3 reproduced from the read only area and another push-pull signal output T4 reproduced from the recording and reproducing area before recording satisfies relations of T3?0.1, T4?0.1 and 1.5?T3/T4?0.5.

Abstract: A recording method for use by an apparatus and/or which is encoded on a computer readable medium includes selecting a defect management on mode or a defect management off mode that indicates whether defect management is to be performed or not while data is recorded in the recording medium, recording the data in the recording medium while defect management is performed on the recording medium, if the defect management on mode is selected, and recording the data in the recording medium without defect management, if the defect management off mode is selected.

Abstract: According to one embodiment, an information recording medium which is configured to record information includes a first area which stores first information indicating the range of a currently formatted area, and a second area which stores second information indicating the range of a previously formatted area.

Abstract: Methods, systems, and apparatus, including computer program products for identifying optical disc media. In one aspect a method is provided that includes receiving printed information read from an optical media disc. Identifying a media-type of the optical media disc from the printed information. The printed information can be printed on optical media disc in ink. The printed information can be printed on optical media disc which includes a plurality of stripes.

Abstract: 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 encoder to generate a second plurality of frames of data, generating a set of data to form a Q sub-channel, altering selected data bits in the Q sub-channel to form an encoded Q sub-channel, forming a plurality of control bytes including the encoded Q sub-channel, adding one of the control bytes to each one of the second plurality of frames of data to generate a third plurality of frames of data, encoding selected portions of the third plurality of frames of data by an EFM encoder to generate a plurality of channel frames, and recording the channel frames on the optical medium. This method allows CDs to be recorded that cannot be played by conventional CD players.

Abstract: A system and method of identifying programs contained on a disk of any format, including, for example, either a single-sided or a double-sided disk with either a single-layer or multi-layer tracks, are presented. In particular, a dual-sided recording medium is disclosed having respective program data on the first and the second sides of said medium. In addition, the medium has a first area on the first side and a second area on the second side, and the areas have laser encoded data representing individualized information relating to said respective program data. The areas may or may not overlap each other depending on the configuration chosen. Also disclosed is an apparatus for laser encoding the above-described recording medium, and a method for processing a disk having more than one laser encoded areas.

Abstract: A method and apparatus for activating an optical media device with a conditional access mechanism is presented. The optical media device is configured with a conditional access system such as an optical shutter assembly and the apparatus is configured to receive such an optical media device and establish communication with the optical media device. The apparatus may include one or more electrodes that are positioned such that they come into physical or near physical contact with a corresponding electrode on the optical media device and thereby establish electrical communication. The apparatus may also be configured to send and receive acoustical signals to establish an acoustical communication path with the optical media device. A data communication path may also be established between the optical media device and the apparatus. Upon establishing communication with the optical media device, the apparatus may send an activation signal to the optical media device to activate the conditional access system.

Abstract: A hologram recording medium is provided which can prevent sensitization of a region thereof other than a data recording region thereby to prevent deterioration of a characteristic of the hologram recording medium. The hologram recording medium includes partition members for partitioning a recording material. Upon recording, unnecessary light generated when signal light and reference light enter the recording material is blocked from propagating in the recording material by the partition members and cannot advance into adjacent partitions. Therefore, unnecessary sensitization of the recording material by the unnecessary light can be prevented, and particularly, decrease of the recording capacity can be prevented. Consequently, the performance of a hologram recording and reproduction apparatus which adopts, for example, a multiplex recording system can be exhibited fully.

Abstract: An information-storage media is provided that includes: (a) a substrate disk 312 having first and second opposing surfaces; (b) a first interface layer 304 on the first surface, the first interface layer having a first thickness; (c) a second interface layer 308 on the second surface, the second interface layer having a second thickness, wherein the first and second interface layers have a different chemical composition than the substrate disk; and (d) an information-storage layer 412 adjacent to one or both of the interface layers. The first and second thicknesses are different to provide an unequal stress distribution across the cross-section of the media.

Abstract: A system and method for wireless activation of a target. A communication device transmits an ID associated with the target to a network operations center. The network operations center provides an activation signal to the communication device. The communication device wirelessly transmits an acoustic activation signal to a nearby activation device. The activation device is positioned proximate the target and causes a change in at least one physical property of the target. The target may be an optical media containing an electrochromic material with optical properties that change on application of an electric signal.

Abstract: An object of the present invention is to provide a marking forming apparatus, a method of forming a laser marking on an optical disk, a reproduction apparatus, an optical disk, and a method of manufacturing an optical disk, capable of providing a greatly improved copy prevention capability as compared to prior known construction. To achieve this object, in the optical disk of the invention, for example, a marking is formed by a laser on a reflective film of a disk holding data written thereon and at least position information of the marking or information concerning the position information is written on the disk in an encrypted form or with a digital signature appended thereto.