Abstract: An optical disc having a center, an outer periphery and a metal layer between the center and the outer periphery. A tag comprising a radio frequency transponder is located in a region adjacent the outer periphery. This arrangement facilitates reading the transponder with an external reader when a plurality of discs are stacked one on top of the other.

Abstract: A media drive is disclosed. In one embodiment, a media drive can comprise: a disk holder, a drive laser, a disk reader, and a luminescence detector. The disk holder can be capable of applying a rotational force to a media disk. The drive laser is disposed so that light from the laser will be incident on the media disk when it is disposed in the disk holder. The disk reader is disposed to receive data from the media disk. A method for authenticating a media disk is also disclosed. The method can comprises: disposing the article in a reader, illuminating at least a portion of the article with the information reader, monitoring a luminescence emission of the illuminated article, and determining if the luminescence emission is consistent with an authentic article. If a luminescent material is present, the information reader excites the luminescent material to create a luminescence emission.

Abstract: The present invention relates to articles and methods for producing and distributing a memorabilia object. A music recording object may be prepared that may have at least one printed indicia selected from the group consisting of a photograph, an autograph and a label color. The music recording object may be packaged in a container having at least one memorabilia object from a recording artist of the music recording object. A limited edition identification number may be placed on the music recording object. The container may be enclosed in a sealed package having the appearance of a standard music recording object. Multiple music recording objects and standard music recording objects may be simultaneously distributed for sale.

Abstract: A cartridge is composed of a cartridge body and a shutter. A hologram recording disk is rotatably contained in a disk recess formed in the cartridge body. The shutter comprises upper and lower shutter plates between which the cartridge body is interposed. The shutter opens and closes openings formed in both surfaces of the cartridge body. When the shutter is kept in a closed position where the openings are closed, the edges of the shutter are inserted into slits formed around the opening. Further, a groove is formed at an end portion of the shutter. Into the groove, a ridge formed on the cartridge body is inserted.

Abstract: A signal transmission method applicable to prevention of modification or alteration of the playback mode information, such as copying management information or charging information. The playback mode information form a terminal is data-converted for ciphering by a playback mode information appendage circuit in a header appendage circuit responsive to the key information from a terminal and the resulting information comprised of the data and the playback mode information is outputted. The reproducing side effects data conversion on the ciphered playback mode information for deciphering, by a playback mode information detection circuit in a header separation circuit, using the key information from a terminal, for taking out the original playback mode information at a terminal.

Abstract: A rotating data carrier with detector wafer is described. The detector wafer consists of a chip and a magnetic coupling loop connected to the chip, which loop is arranged on the central uncoated region of the data carrier.

Abstract: The present invention is to provide a practically usable, recordable or rewritable optical information recording medium having a pair of recording layers and a recording and reproducing apparatus for the medium. The recording medium has a pair of recording layer structures on a substrate so as to sandwich a resin intermediate layer, and a recording beam and a reproducing beam are irradiated to two recording layer structures. The pair of recording layer structures respectively have a different track pitch, and the ratio of difference in the track pitch defined by Expression 1 is +0.03 to +0.15, (T2?T1)/T1 ??Expression 1 T1 represents a track pitch of the recording layer structure disposed on the laser beam irradiation side, and T2 represents a track pitch of the recording layer structure disposed on the inner side.

Abstract: The disclosure is directed to optical disks with a microstructured surface formed on a surface of the optical disk. The microstructured surface may be created to promote the adhesion and prevent the migration of a print material applied to the surface of the optical disk. The microstructured surface may be in the form of a plurality of wells or a plurality of discontinuous raised features in the surface. By forming a microstructured surface on the surface of the disk, the optical disk may not need an additional coating to receive the print material while also retaining the print material at a precise location on the surface. In addition, a plurality of standoff features may be formed in an outer surface of the optical disk to help prevent damage to the surface of the optical disk.

Abstract: An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed.

Abstract: A portable integrated media apparatus comprising: a disc transport movable along at least one axis, and includes a disc engagement mechanism for selective engagement of at least one disc; a print assembly for printing to the at least one disc, the print assembly including: one or more print heads movable about a print axis; at least one recording device for recording to the at least one disc; at least one disc receptacle adapted to store the at least one disc; a control unit for controlling the functions of the disc-publishing device; a data interface for transmitting data; and a data storage component for storing the data; wherein the disc transport and the one or more prints heads are adapted to move independent of each other and wherein the control unit controls one or more functions of the disc-publishing device based on the data received from the data interface, stored in the data storage component, or both.

Abstract: A dual-path optical recording medium and an apparatus for accessing such are disclosed. The dual-path optical recording medium includes a substrate, an intermediate recording layer, a holographic recording layer and a dichronic mirror layer. The intermediate recording layer is a rewritable data storage layer with a relatively low storage capacity. The holographic recording layer is a write-once data storage layer with a relatively high storage capacity. The dichronic mirror layer is located between the holographic recording layer and the intermediate recording layer. The apparatus for accessing the dual-path optical recording medium includes a first light module capable of generating a first laser light, and a second light module capable of generating a second laser light.

Abstract: An optical disk apparatus for use with the combination type optical disk medium comprises an optical head capable of accessing the first and second recording layers and reading recording marks, a demodulator for applying a demodulation process to a signal read out of the first or second recording layer, an address converter for deciding from an optical disk reproduction instruction a recording layer to be accessed and performing conversion to a physical address of the recording layer, a reproduction controller following the recording layer determination and the physical address to control the optical head and the demodulator so as to control access and reproduction to and from the optical disk medium, and an instruction generator for generating an instruction to reproduce the optical disk.

Abstract: An optical recording medium has a user data area and a lead-out area, wherein the user data area and the lead-out area each has grooves and lands formed thereon. Wobbles are formed on at least one lateral surface of 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 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/reproduction 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 a same condition, thereby preventing deterioration in reproduction and/or recording due to a difference in light power transmittance of another recording layer.

Abstract: In the invention, e-book information is distributed on un-cartridged small media that can be made cheaply enough for use in free distribution of information. The e-book information is encoded and stored on a read-only optical disc that is 2 to 4 cm in diameter and 0.6 to 1.2 mm thick, the information being encoded with sufficient redundancy and sufficient tolerance for missing information that the disc can be conveniently handled and pocketed without losing reliability of information access. The disc has a lead-in area that is prior to all the e-book information and that contains a disc navigation area, and a lead-out area that follows all the e-book information. The disc may include multiple partitions, each partition containing sufficient access information for independent access of the e-book information within the partition without accessing any other partition. Alternatively, the disc may include multiple slots for files and that are equally spaced.

Abstract: An object of the present invention is to provide a disk structure and a disk-structure manufacturing method that are capable of preventing the degradation of a signal-to-noise ratio resulting from the occurrence of an eddy current. On a disk 101, a thin film of metal 102, a magnetic thin film 103, and an insulating film 104 are formed in this order, and on the insulating film 104, an RF-ID chip 106 and components of an antenna 109 connected to the RF-ID chip 106 are formed.

Abstract: A UV-LED is incorporated into a variety of different illumination and radiation devices suitable for illuminating indicia associated with a CD/CDRW/DVD storage medium, gauges, promotional displays, knobs or buttons for automotive or electronic devices, as well as ornaments and air purification by decomposition. The indicia are made of a material responsive to UV emissions to render the indicia visible. The devices may be used in motor vehicles, commercial promotions and displays, electronic devices with the UV-LED's oriented to direct the UV emissions toward the indicia and even positioned in a manner for air purification. Embodiments are presented for UV-LED's from above, the side, and underneath said embodiments of the invention.

Abstract: A holographic storage media incorporates a holographic recording layer for storing holographic data and a DVD reflective layer for storing control information. The DVD reflective layer is positioned within the holographic storage media relative to the holographic recording layer to enable individual optical access to the holographic recording layer via a data laser light for processing the holographic data and individual optical access to the DVD reflective layer via an information laser light for processing the control information. The holographic recording layer and the DVD reflective layer may be physically separated by one or more intermediate reflective layers. The data laser light and the information laser light may differ in one or more optical characteristics. The holographic recording layer and the DVD reflective layer may be optically accessed by the respective laser lights through different light transparent faces of the holographic storage media.

Abstract: A secure optical data disc comprising an electronic article surveillance tag embedded within a layered disc structure comprising first and second substrates is disclosed. The tag is placed within a non-readable zone (i.e., one that does not have data tracks) of the secure disc. Layer-wise, the tag is either sandwiched between the two substrates or alternatively embedded within one of the two substrates. In the case where the tag is sandwiched between first and second substrates, a bonding layer occupies a space radially outward from the tag. The bonding layer holds the first and second substrates together thereby forming the secure disc.

Abstract: A locking mechanism for an optical storage medium comprises a first portion that is installed on the optical storage medium and a second portion that is lockable to the first portion. When the first and second portions are locked together, the optical storage medium is unusable to access data stored thereon.

Abstract: The invention discloses an optical disc comprising a substrate, a multi-layer structure, and a plurality of ribs. The substrate has a first surface and a second surface set opposite to the first surface. The multi-layer structure is formed on the first surface of the substrate and comprises at least one recording layer. The ribs are formed on the second surface of the substrate. The ribs are used for increasing the rigidity of the optical disc, such that a runout of the optical disc can be suppressed while the optical disc is rotated.

Abstract: Methods, systems, and apparatuses for forming a radio frequency identifiable disc medium storage device are described. A metal layer is deposited onto a disc. At least one metal trace on the disc is connected to the metal layer. An adhesive interposer is attached to the disc around an opening in the center of the disc. The interposer includes an integrated circuit die. Pads of the integrated circuit die are coupled to the at least one pair of metal traces by the interposer. The interposer further includes a matching network. A coating is formed on the disc to encapsulate the metal layer, interposer, and integrated circuit die.

Abstract: A method for recording a unique identifier onto an optical medium said method comprising the stops of obtaining a manufactured optical medium and ink jet printing onto the read-side surface of said medium one or more light-changeable state change material(s) in a pattern, quantity, or combination which is uniquely different from another of the same type of optical medium, said light-changeable state change material being activatable between at least a first optical state to a second optical state by the read beam of an optical reader, the activation of which is detectable using the read beam of an optical reader for said optical medium.

Abstract: According to one embodiment, an information processing apparatus includes an optical disk drive that performs at least one of a read process and a write process for a plurality of kinds of optical disk, and a designation unit that designates at least one kind of an optical disk as a designated optical disk for which the at least one of the read process and the write process is performed, wherein the optical disk drive performs the at least one of the read process and the write process only for the designated optical disk.

Abstract: An optical medium designed to reduce unauthorized read and theft, dye systems useful in making such discs, and methods of select application of the dye systems to recording medium.

Abstract: A disc-shaped optical data recording medium has a signal recording layer for reading and/or writing data using light, and a 10 ?m to 200 ?m thick transparent protective layer disposed over the signal recording layer. The optical data recording medium includes a protrusion projecting from a surface of the transparent protective layer on a light-incidence surface side to which light is emitted to the signal recording layer. The protrusion is disposed in an area between a center hole and a clamping area where the optical data recording medium is held when reading and/or writing data in the signal recording layer.

Abstract: An optical disk drive includes a body, a tray, a first fastening structure, and a second fastening structure. The body has an opening. The tray is coupled to the body and movable at the opening. The first fastening structure is disposed at the body, and the second fastening structure is disposed at the tray. When the tray is situated in the body, the first fastening structure and second fastening structure are correspondingly fastened to each other to restrict the displacement of the tray along the vertical direction in the body.

Abstract: A storage medium that is one of a compact disk and a digital versatile disk. The storage medium includes a first portion, the first portion being an area of the storage medium that is read-only only. The storage medium includes a second portion, the second portion being another area of the storage medium upon which a second set of data can be written.

Abstract: A limited-life storage medium comprises a flowable agent. The flowable agent comprises water and a hygroscopic substance. In one example, the flowable agent is a mixture of glycol and water with an acid or other corrosive active ingredient dissolved in it. In one example, the storage medium is an optical disc. When the disc is read, the rotation of the disc propels the flowable agent into contact with a metal data-carrying layer. In one example, the hygroscopic substance reduces any tendency of the flowable agent to dry out and cease to be flowable, and may tend to buffer the proportion of water in the flowable medium within a range.

Abstract: An optical disk compliant with both a conventional optical disk such as a BD, HD DVD, and the like and a next-generation high-density optical disk according to a near-field light recording system and the like is provided. An information recording medium includes a first information recording layer and a second information recording layer, to/from which information is recorded or reproduced using laser beam. The first information recording layer is formed at a laser beam entrance surface, and is configured so that information can be recorded thereupon and/or reproduced therefrom using a first objective lens having a first numerical aperture NA1 and laser beam of a first wavelength ?1. The second information recording layer is formed so as to have a distance to the laser beam entrance surface is 0.05 mm to 1.

Abstract: An optical recording medium is described. The optical recording medium includes a substrate and a recording layer arranged on one side of the substrate. The optical recording medium also includes a clamping area formed to achieve, when the clamping area is clamped by a device, a tension that enhances shape stability of at least a part of the optical recording medium outside of the clamping area.

Abstract: An optical recording medium has a user data area and a lead-out area, wherein the user data area and the lead-out area each has grooves and lands formed thereon. Wobbles are formed on at least one lateral surface of 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 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/reproduction 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 a same condition, thereby preventing deterioration in reproduction and/or recording due to a difference in light power transmittance of another recording layer.

Abstract: The objective of the present invention is to provide an optical disc which solves the problem that search for data recorded on an exchange-type medium such as an optical disc and the like and which allows search for data recorded in an optical disc to be performed with a simple operation. A transmitting/receiving antenna 231 is provided in an inner peripheral portion of an optical disc. An IC module 201 connected with transmission/reception IC 230 including ID information is formed and embedded into a substrate the optical disc. Thus, an optical disc incorporating an IC module which can be produced on a mass-production basis can be achieved.

Abstract: A multi-stack optical data storage medium, for recording using a focused radiation beam having a wavelength ? and entering through an entrance face of the medium, has a first substrate having a first guide groove formed therein, and a first recording stack including a recordable type recording layer having a thickness dL0G in the groove and a thickness dL0L adjacent the groove. A second substrate has a second guide groove formed therein, and a second recording stack including a recordable type recording layer having a thickness dL1G in the groove and a thickness dL1L adjacent the groove. The second recording stack is at a position closer to the entrance face than the first recording stack. The depth of the first guide groove is smaller than 0.15? and dL0L is substantially equal to or larger than dL1G.

Abstract: A multi-layered film made of sequentially stacked first dielectric layer, recording layer, record-assist layer, second dielectric layer and first reflection layer on a disc substrate having a concavo-convex structure at least on one surface thereof. An ultraviolet-setting resin layer is formed to cover the multi-layered film. The record-assist layer is controlled in thickness to satisfy the relation d/4<a<3d, or more preferably the relation d/2?a?2d, between the thickness d of the recording layer and the thickness a of the record-assist layer. The stacking order of the multi-layered film may be opposite. In this case, a light-transmitting sheet is provided to cover the multi-layered film via a bonding layer.

Abstract: When the recording density of an optical information recording medium is increased, the disk structure becomes more complex; and when many recording layers are provided, the production margin and the production cost becomes problems. By using a substrate and a light-transmitting layer formed on the substrate and made of a material the light transmittance of which varies when irradiated with recording light, information can be recorded/reproduced, thereby realizing easy production of a high-density optical information recording medium at low cost.

Abstract: A disc-shaped original glass plate for producing a stamper for roughening a substrate of an optical recording medium, containing a circular 21st area within a radius D1 from the center of the original glass plate, a circular 22nd area within a radius D2 (>D1) from the center, a ring-shaped 23rd area obtained by omitting the 21st area from the 22nd area, and a ring-shaped 24th area obtained by omitting the 22nd area from an entire the major surface of the glass plate, wherein the 21st and 24th areas are lustrous, and the 23rd area is roughened. The surface roughness of the 23rd area is such that the arithmetic average roughness Ra is 0.05 to 2.0 ?m and the ten-point average roughness Rz is 0.1 to 5.0 ?m.

Abstract: A program area for the normal writing of information is provided on a first side of an information recording and reproducing medium, and a label area and a program area on which information can be written are provided on the opposing second side of the medium. A bibliographic description such as the name or trademark or the like of the company who manufactured the disc is recorded in the label area using printing or the like. A recording layer of a cyanine or an azo based organic dye is provided in the program area, and an image pattern is recorded optically onto this recording layer. With such a construction, a user can form a visible pattern known as pit art on the recording layer of the program area by optically writing a desired image pattern, and as a result can readily identify and organize a plurality of information recording and reproducing media.

Abstract: An optical recording medium having a plural number of recording layers includes a n-th recording layer (23) (n?1), made up by a substrate (20) and a semi-reflective layer (21) carried by the substrate (20) and adapted for partially reflecting and partially transmitting the incident light, a (n+1)th recording layer (28), made up by another substrate (25) and a reflecting layer (26) carried by the substrate (25) and adapted for reflecting the incident light, and a light condensing layer (24) for condensing the light incident via the n-th recording layer (23) on the (n+1)th recording layer (28).

Abstract: An optical disk having a recording layer on a substrate, a bonding layer which is made of an ultraviolet cured resin bonding the recording layer, a transparent layer which is bonded to the bonding layer, and an overcoating layer which is formed on the transparent sheet and is made of the ultraviolet cured resin further has a mixed layer which is formed by mixing the ultraviolet cured resins of the bonding layer and the overcoating layer. Consequently, the bonding layer, the overcoating layer, and the mixed layer are integrally cured, so that the substrate is entirely covered with the ultraviolet cured resin having transparency, which allows a light transmitting layer A to be protected with sufficient strength.

Abstract: A large capacity recording medium is formed by bonding at least two disc-shaped recording plates to provide a structure adapted to absorb any manufacturing errors in the direction of the height of the recording medium.

Abstract: An optical recording medium including a transparent substrate; and at least one multi-layer information layer located on the transparent substrate and including a phase change recording layer configured to record information by changing its phase between a crystallization state and an amorphous state, a protective layer, and a reflection layer, wherein the average of partial response signal-to-noise ratio (PRSNR) in all data regions of the recording medium is not less than 15.0 after one direct overwriting (DOW1) cycle and the standard deviation of inter-track distribution of PRSNR is not greater than 0.3.

Abstract: An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed.

Abstract: A disk-shaped optical information recording medium comprising a recording layer, a pressure sensitive adhesive layer or an adhesive layer, and a cover sheet in this order on a substrate, and having a central hole, a track pitch of 300 to 600 nm and a groove depth of 40 to 150 nm, for recording and playing back information by being irradiated with a laser light at a wavelength of 500 nm or less, wherein the substrate and the cover sheet are closely adhered via the pressure sensitive adhesive layer or the adhesive layer at a region including a portion of an inner circumference vicinity and an outer circumference vicinity, and the maximum value for the radial length of the closer adhesion region is at least 0.4 mm.

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: An optical recording medium includes a substrate, a light transmission layer and a plurality of recording layers between the substrate and the light transmission layer and capable of recording data in the plurality of recording layers and reproducing data recorded in the plurality of recording layers by projecting a laser beam via the light transmission layer onto the plurality of recording layers, at least one recording layer other than a farthest recording layer from the light transmission layer among the plurality of recording layers including a first recording film containing Si as a primary component and a second recording film located in the vicinity of the first recording film and containing Cu as a primary component. In the thus constituted optical recording medium, it is possible to record data in a farthest recording layer from the light transmission layer and reproduce data from the farthest recording layer in a desired manner.

Abstract: An optical recording medium has a user data area and a lead-out area, wherein the user data area and the lead-out area each has grooves and lands formed thereon. Wobbles are formed on at least one lateral surface of 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 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/reproduction 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 a same condition, thereby preventing deterioration in reproduction and/or recording due to a difference in light power transmittance of another recording layer.

Abstract: The optical data storage medium (20) has a substrate (1) with a surface area having tracks (4) of marks representing stored information. The information is readable by means of a scanning radiation beam (10). A reflective layer (2) is present, reflecting the radiation beam (10). The medium has a radiation beam (10) reflection larger than 50%. The reflective layer (2) comprises a compound of the formula Al100-y,Xy, in which formula Al is aluminum and X is an element selected from the group of Ge and Si. The letter y is the atomic fraction of X in at. %. The value of y is in the range 5<y<35. The reflective layer (2) has a radiation beam absorption, which enables controlled ablative recording or solid-phase change recording of an identification mark (6, 6?).

Abstract: A light shield plate 12 having outer openings 14 and 15 is fixed to the outside of a cartridge body 11 in which inner openings 18 and 19 for exposing a photosensitive recording medium 4 to the outside are formed. A shutter 13 for opening and closing the inner openings 18 and 19 is incorporated movably between the cartridge body 11 and the light shield plate 12. Closing-side ends 55e and 55f of the shutter 13 and shutter-closing-side edges 18a and 19a of the inner openings 18 and 19 and/or shutter-closing-side edges 14a and 15a of the outer openings 14 and 15 are inclined from each other.

Abstract: A recording apparatus records movie content onto a DVD. The movie content is encrypted using a different encryption method depending on whether the DVD is intended for consumer use or industrial use. If the DVD is for consumer use, a VIDEO_TS directory is created on the DVD, and the encrypted movie content is recorded in the VIDEO_TS directory. If the DVD is for industrial use, a VIDEO_TS directory and an EWCPS_TS directory are created on the DVD, and the encrypted movie content and message data are recorded respectively in the EWCPS_TS directory and the VIDEO_TS directory. The message data indicates that the movie content cannot be played back by consumer DVD players.

Abstract: An optical recording medium which comprises a print-receiving layer as the outermost layer on the side opposite to the light incidence side, wherein a pattern is formed on the print-receiving layer.