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| Number | Title | Issue Date |
| 8169883 | Optical disk, method for manufacturing the same, and method for recording and method for reproducing data using optical disk An optical disk includes a first information recording layer, and second to N-th information recording layers (with N being an integer of two or greater) that are arranged further toward the side from which laser light is irradiated than the first information record... | 05/01/2012 |
| 8094543 | Information recording medium, reproducing apparatus and reproducing method An information recording medium according to the present invention includes at least three information recording layers. If the readout power of a laser beam in reading information from an information recording layer L(n) is identified by Pw(n), and if the readout p... | 01/10/2012 |
| 8059521 | Optical recording carrier, signal generating apparatus, information recording method, and information reading apparatus An optical recoding carrier and an information recording method applying an amplitude shift keying (ASK) method or further a DC-biased ASK method are provided, wherein at least one periodically undulated section and at least one non-periodically undulated section ar... | 11/15/2011 |
| 8040785 | Optical disc, optical disc manufacturing method, optical disc recording device and optical disc reproduction device An optical disc includes a reflective film formed on concave and convex marks after the concave and convex marks are synchronized with the integral multiple of a channel bit length and formed in accordance with modulated main information. Thereafter, continuous or i... | 10/18/2011 |
| 8036096 | Optical recording medium for retail activation An optical recording medium to be used for a retail activation solution is proposed. The optical recording medium is a modified ROM disk that can only be played after the application of an activation process. For this purpose at least a part of a reflective layer of... | 10/11/2011 |
| 8031580 | Recording media with features to render media unreadable and method and apparatus for replication of said media Optical recording media configured to deter unauthorized access are described. Methods for manufacturing the optical recording media described above are also presented. ... | 10/04/2011 |
| 8018822 | Optical information recording medium An optical information recording medium includes an optical disk body including a light-transmitting substrate, a recording layer provided on a main surface of the light-transmitting substrate over a region in which pre-grooves are formed and a portion of a region i... | 09/13/2011 |
| 8000217 | Optical disc and optical disc device In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical dis... | 08/16/2011 |
| 7995451 | Optical disc and optical disc device In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical dis... | 08/09/2011 |
| 7986609 | Optical recording medium An optical recording medium records information in a mechanism of generating new material, having reflectance different from that of others in information recording layer, when laser beam is projected thereonto. The optical recording medium includes a substrate, and... | 07/26/2011 |
| 7983139 | Small form factor optical data storage disc and cartridge An optical data storage disc measuring 32 mm in diameter contains 1 GB of data per layer. The data is designed to be readable by a disc drive that contains a blue wavelength laser, an objective lens having a numerical aperture of 0.72 and conventional DVD controller... | 07/19/2011 |
| 7944804 | Optical disk recording method, optical disk device, program, and recording medium In an optical disk recording method adapted to record information on an optical disk by a light beam incident to the disk in one direction, the disk has a plurality of rewritable recording layers including a first layer nearest to a plane of incidence and a second l... | 05/17/2011 |
| 7920458 | Optical recording medium, and recording and reproducing method An optical recording medium is provided with at least a substrate, light absorbing and heat generating parts each of which absorbs light and generates heat, and recording parts, and each of the recording parts are formed between two recording tracks. ... | 04/05/2011 |
| 7916616 | Optical storage media with embedded security device An optical disk with an embedded security device, or wafer, is presented. The security device includes security features that enable the identification of genuine optical disks versus counterfeit optical disks. Methods for creating optical disks embedded with securi... | 03/29/2011 |
| 7889630 | Record carrier The invention relates to a record carrier (1) comprising an area for storing data, the record carrier adhering to a pre-defined, standardized condition with respect to a physical parameter. The record carrier comprises parameter information on the physical pa... | 02/15/2011 |
| 7876664 | Optical recording medium An optical recording medium including three or more recording layers is provided. The optical recording medium includes an L0 layer, an L1 layer, an L2 layer, and an L3 layer as the recording layers and first to third light transmitting spacer layers respectively ar... | 01/25/2011 |
| 7864654 | Optical recording medium, information recording method, and information reproducing method According to one embodiment, an optical recording medium is provided in which interlayer crosstalk is low and in which stable and high-quality recording characteristics can be obtained. To this end, an optical recording medium comprises a first recording part which ... | 01/04/2011 |
| 7852741 | Recording medium with segment information thereon and apparatus and methods for forming, recording, and reproducing the recording medium 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/... | 12/14/2010 |
| 7848214 | Information recording medium, information recording device and method, information reproduction device and method, information recording/reproduction device and method, computer program for controlling recording or reproduction, and data structure including control signal An information record medium contains a plurality of content informations and a plurality of play list sets each including a plurality of play list informations defining the reproduction sequence of the content informations. In addition, the information recording me... | 12/07/2010 |
| 7848215 | Optical recording medium, information recording apparatus and information reproduction apparatus An optical-recording medium is provided with at least a first recording layer for recording information optically; and a second recording layer for recording information optically by a light beam that passes through said first recording layer; wherein the track pitc... | 12/07/2010 |
| 7830778 | Optical information recording medium An optical information recording medium having a disk-shaped substrate formed with spiral grooves on one main surface, and having an optical reflection layer formed with grooves at the surface corresponding to the grooves of the substrate for reflecting a laser beam... | 11/09/2010 |
| 7826334 | Apparatus and method for producing optical recording medium, optical recording medium, apparatus and method for reproduction and apparatus and method for recording 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 refl... | 11/02/2010 |
| 7826333 | Optical recording medium An optical recording medium has a plurality of information layers which are placed between a substrate and an optically transparent cover layer with optically transparent spacer layers interposed between the information layers. From among the plurality of informatio... | 11/02/2010 |
| 7817526 | Optical recording medium An optical recording medium has a five-layer structure including five recording layers, namely an L0 layer, an L1 layer, an L2 layer, an L3 layer, and an L4 layer in this order from a side farthest away from a l... | 10/19/2010 |
| 7808881 | Optical recording medium, optical recording medium manufacturing method, and optical recording medium reproducing method 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 ide... | 10/05/2010 |
| 7801014 | Manufacturing method of optical disc and optical disc An optical disc of a desired thickness is formed by adhering a stamper substrate 20 to an L0 layer substrate 10. Concave/convex portions to transfer fine concave/convex portions for an L1 layer are formed on one principal plane of the sta... | 09/21/2010 |
| 7801930 | Recording medium, host device, and data processing method A semiconductor recording medium holds an open flag showing presence or absence of consistency between content data stored in a data storage section and file system management information, in a system region not directly accessible from a host device. Upon receipt o... | 09/21/2010 |
| 7787354 | Recording medium with segment information thereon and apparatus and methods for forming, recording, and reproducing the recording medium 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/... | 08/31/2010 |
| 7787353 | Optical recording medium and method for manufacturing same In an optical recording medium 1 having a configuration in which on one main surface of a substrate 2, a reflective layer 3, a lower dielectrics layer 4, a recording layer 5, an upper dielectrics layer 6 and a light transmis... | 08/31/2010 |
| 7782742 | Recording medium with physical access control (PAC) information thereon and apparatus and methods for forming, recording, and reproducing the recording medium A recording medium, such as a high-density and/or optical recording medium including physical access control (PAC) information recorded thereon, and apparatus and methods for recording to and reproducing from the recording medium, in order to improve data protection... | 08/24/2010 |
| 7778144 | Optical recording medium, information recording method, and information reproducing method According to one embodiment, an optical recording medium is provided in which interlayer crosstalk is low and in which stable and high-quality recording characteristics can be obtained. To this end, an optical recording medium comprises a first recording part which ... | 08/17/2010 |
| 7778143 | Optical disk and optical disk apparatus An optical disk according to the present invention includes: a substrate in a disk shape; guide grooves arranged at a pitch p in a radial direction of the substrate, each of the guide grooves being formed so as to extend in a circumferential direction of the substra... | 08/17/2010 |
| 7764591 | Multilayer optical disc having a recording stack type indicator A multilayer record carrier of a writable type has a first recording layer (40) having a first recording stack (50,51) of a first type and a second recording layer (41) having a second recording stack (54,55) of a second type. The first a... | 07/27/2010 |
| 7764592 | Optical recording medium, method for manufacturing the same, recording/playback method, and recording/playback apparatus An optical recording medium that allows information to be recorded and played back properly, even when a type of recording medium in which information is recorded to grooves is used along with a type of recording medium in which information is recorded to lands, as ... | 07/27/2010 |
| 7760613 | Recording medium with physical access control (PAC) cluster thereon and apparatus and methods for forming, recording, and reproducing the recording medium A recording medium, such as a high-density and/or optical recording medium including at least one physical access control (PAC) cluster recorded thereon, and apparatus and methods for recording to and reproducing from the recording medium, in order to improve data p... | 07/20/2010 |
| 7760614 | Optical article having an electrically responsive layer as an anti-theft feature and a system and method for inhibiting theft An optical article comprising at least one data side and configured for transformation from a pre-activated state of functionality to an activated state of functionality is provided. The optical article includes an optical data layer for storing data. Furthermore, t... | 07/20/2010 |
| 7746754 | Method of allocating areas in optical disc, data recording and/or reproducing apparatus adopting the same, and optical disc therefor Recording areas in an optical disc having a plurality of recording layers allocated so each recording layer includes a data area for recording data, a connection area in which a predetermined pattern of data for indicating that no data area is recorded therein, and ... | 06/29/2010 |
| 7738352 | Information recording medium An optically detectable information recording medium is at least comprised of a substrate and a recording layer, wherein a surface of the recording layer opposite to another surface of the recording layer in contact with the substrate has a Root Mean Square roughnes... | 06/15/2010 |
| 7719952 | Optical information recording medium An optical information recording medium having a structure in which irregular reflection of information light and recording/reproducing light from the reflective layer of an optical information record medium is prevented, thereby reducing the noise appearing on the ... | 05/18/2010 |
| 7710853 | Recording medium with segment information thereon and apparatus and methods for forming, recording, and reproducing the recording medium 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/... | 05/04/2010 |
