Track Data Format/layout Patents (Class 369/275.3)
  • Publication number: 20130336100
    Abstract: In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is prescribed to be 0.18 though 0.27 or a numerical aperture of an address pit signal occupying in a reproduced signal in a non recording state is prescribed to be more than 0.3.
    Type: Application
    Filed: August 20, 2013
    Publication date: December 19, 2013
    Applicant: JVC Kenwood Corporation
    Inventors: Tetsuya Kondo, Eiji Nakagawa, Hirofumi Nagano
  • Publication number: 20130336097
    Abstract: An optical-information recording medium includes a groove and a land that are alternately provided. Address information in the groove is recorded by wobbles in the groove, and address information on the land is recorded by a combination of the wobbles in the grooves provided at two opposite sides of the land.
    Type: Application
    Filed: June 7, 2013
    Publication date: December 19, 2013
    Applicant: Sony Corporation
    Inventors: Hideki Ando, Toshihiro Horigome
  • Publication number: 20130322227
    Abstract: A recording medium is provided with: a guide layer on which a guide track or guide tracks are formed; and recording layers, wherein (i) an information mark group and (ii) a distinctive mark group are formed in the guide layer, the information mark group being formed on each of a plurality of guide tracks, the distinctive mark group distinguishing a center track out of the plurality of guide tracks on each of which the information mark group is formed, the distinctive mark group including a pair of distinctive record marks which are shifted toward a right side and a left side, respectively, from a track center of the center track, a width of each distinctive record mark is twice or more a width of the guide track.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 5, 2013
    Applicants: Pioneer Corporation, Pioneer Digital Design and Manufacturing Corporation, Memory-Tech Holding Inc.
    Inventors: Takuya SHIROTO, Masayoshi YOSHIDA, Hideki KOBAYASHI, Masakazu OGASAWARA, Takao TAGIRI, Makoto SUZUKI
  • Patent number: 8599668
    Abstract: A device for recording data and data structures on a write-once storage medium. The device has writing means for recording the data and the data structures and controlling means for generating the data structures and controlling the writing means. The data structures comprise space bit map and defect management structures. The controlling means are adapted to record the data structures at a predefined temporary location on the write-once storage medium and to finalize the write-once storage medium by recording the data structures at a predefined fixed location as defined for a rewritable storage medium.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: December 3, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Jakob Gerrit Nijboer, Pope Ijtsma
  • Patent number: 8599667
    Abstract: Disclosed herein is a multi-layer optical recording medium having n recording layers (n?3) in which recording and reproduction of information are carried out by laser light, the multi-layer optical recording medium including: a file system area configured to be disposed near a last logical address in an area used as a logical address space in which stream data is recorded, wherein in the other recording layers different from the recording layer in which the file system area near the last logical address is disposed, the logical address space is not allocated to an area overlapping with the file system area in a layer stacking direction.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: December 3, 2013
    Assignee: Sony Corporation
    Inventor: Kenji Yorimoto
  • Patent number: 8599675
    Abstract: According to one embodiment, an information storage medium in which layer 0 and layer 1 are arranged from a read surface, a system lead-in area, data lead-in area, data area, and middle area are arranged from an inner circumference of the layer 0, and a system lead-out area, data lead-out area, data area, and middle area are arranged from an inner circumference of the layer 1. A guard track zone is arranged on a side of the data area in the data lead-out area, and a reference code zone, R physical format information zone, recording management zone, and drive test zone are arranged in the data lead-in area of the layer 0 and padding of the guard track zone of the data lead-out area is performed after padding of the drive test zone of data lead-in area and recording of the recording management zone.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: December 3, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuo Watabe, Hideo Ando, Sumitaka Maruyama, Yutaka Kashihara, Akihito Ogawa
  • Patent number: 8593930
    Abstract: 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 includes a first recording layer and a first light reflecting layer and which is disposed on a side closer to a light receiving surface, and a second recording part which includes a second recording layer and a second light reflecting layer and which is disposed on a side farther from the light receiving surface, the first recording part and the second recording part being stacked, wherein the thickness of the first light reflecting layer is smaller than the thickness of the second light reflecting layer.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: November 26, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera, Hideo Ando, Naomasa Nakamura
  • Patent number: 8588048
    Abstract: To carry out a track control by compensating for an offset caused by a radial tilt when a track control of a main beam is carried out by detecting tracking information provided at a reference layer of a spatial recording medium by a guide beam, there are formed a first mark pair row aligned with the first mark pairs in a radius direction by a track pitch, and other mark pair row aligned with the second mark pairs in the radius direction by the track pitch. The other mark pair row is arranged in the radius direction by being shifted from the first mark pair row by a prescribed distance. The track control is made to be able to carry out by dispensing with an uncontrollable region by selecting one of plural track error signals generated from the plural mark pairs.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: November 19, 2013
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventor: Atsushi Kikugawa
  • Patent number: 8588047
    Abstract: According to one embodiment, a write-once type information storage medium comprises an organic dye based recording material having sensitivity at a wavelength of 405 nm and at a recording wavelength in the range of 600 nm to 700 nm, wherein, when absorbance of a maximum absorption wavelength in the vicinity of 405 nm is defined as 1, the absorbance is 5% or more at any wavelength in the range of 600 nm to 700 nm.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: November 19, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideo Ando, Seiji Morita, Koji Takazawa, Yasuaki Ootera, Naoki Morishita, Kazuyo Umezawa
  • Publication number: 20130301399
    Abstract: 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.
    Type: Application
    Filed: July 15, 2013
    Publication date: November 14, 2013
    Inventor: Yasuhiro Ueki
  • Patent number: 8582411
    Abstract: An acquisition section acquires image data having a plurality of frames. Table information is written into a store when the image data is acquired. The table information includes first position information representing absolute position information of each of the plurality of frames and second position information representing relative position information when a head frame of the image data is set as a reference. A specification section specifics the second position information of a frame corresponding to a frame reproduction instruction using the first position information. A reproduction section reproduces the reproduction frame corresponding to the specified second position information. Writing of the table information into the table store is restricted when there is an instruction to reproduce the frame.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: November 12, 2013
    Assignee: Sony Corporation
    Inventor: Takayoshi Kawamura
  • Patent number: 8582399
    Abstract: According to one embodiment, an information storage medium in which layer 0 and layer 1 are arranged from a read surface, a system lead-in area, data lead-in area, data area, and middle area are arranged from an inner circumference of the layer 0, and a system lead-out area, data lead-out area, data area, and middle area are arranged from an inner circumference of the layer 1. A guard track zone is arranged on a side of the data area in the data lead-out area, and a reference code zone, R physical format information zone, recording management zone, and drive test zone are arranged in the data lead-in area of the layer 0 and padding of the guard track zone of the data lead-out area is performed after padding of the drive test zone of data lead-in area and recording of the recording management zone.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: November 12, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuo Watabe, Hideo Ando, Sumitaka Maruyama, Yutaka Kashihara, Akihito Ogawa
  • Patent number: 8547816
    Abstract: According to one embodiment, an information storage medium in which layer 0 and layer 1 are arranged from a read surface, a system lead-in area, data lead-in area, data area, and middle area are arranged from an inner circumference of the layer 0, and a system lead-out area, data lead-out area, data area, and middle area are arranged from an inner circumference of the layer 1. A guard track zone is arranged on a side of the data area in the data lead-out area, and a reference code zone, R physical format information zone, recording management zone, and drive test zone are arranged in the data lead-in area of the layer 0 and padding of the guard track zone of the data lead-out area is performed after padding of the drive test zone of data lead-in area and recording of the recording management zone.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: October 1, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuo Watabe, Hideo Ando, Sumitaka Maruyama, Yutaka Kashihara, Akihito Ogawa
  • Patent number: 8547818
    Abstract: An information storage medium configured to store: a version corresponding to a specification; an extended part version; a first revision number of maximum recording speed; a record revision number of minimum recording speed; first information relating to a first recording power corresponding to the first revision number; and second information relating to a second recording power corresponding to the record revision number, wherein a byte position of the version corresponding to the specification, a byte position of the extended part version, a byte position of the first revision number, and a byte position of the record revision number are smaller than byte positions of the first and second information.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: October 1, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideo Ando, Seiji Morita, Koji Takazawa
  • Patent number: 8542567
    Abstract: According to one embodiment, an information storage medium includes an organic dye material which records information with a light beam having a wavelength equal to or smaller than 620 nm.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: September 24, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideo Ando, Seiji Morita, Koji Takazawa
  • Patent number: 8542568
    Abstract: According to one embodiment, an information storage medium includes an organic dye material which records information with a light beam having a wavelength equal to or smaller than 620 nm.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: September 24, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideo Ando, Seiji Morita, Koji Takazawa
  • Patent number: 8537654
    Abstract: In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is prescribed to be 0.18 though 0.27 or a numerical aperture of an address pit signal occupying in a reproduced signal in a non recording state is prescribed to be more than 0.3.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: September 17, 2013
    Assignee: JVC Kenwood Corporation
    Inventors: Tetsuya Kondo, Eiji Nakagawa, Hirofumi Nagano
  • Patent number: 8530140
    Abstract: An optical information recording medium of the present invention includes at least a recording layer (4) that allows information to be recorded thereon and/or reproduced therefrom by being irradiated with a laser beam, and a transmittance adjusting layer (7) in this order from an incident side of the laser beam (30). In the optical information recording medium of the present invention, the transmittance adjusting layer (7) contains Bi, Ti, and O and with a composition of Bi, Ti, and O contained in the transmittance adjusting layer (7) being denoted as BixTiyOz, in atomic number ratio, x, y, and z satisfy 0.07?x?0.35, 0.07?y?0.28, 0.56?z?0.70, and x+y+z=1. Or the transmittance adjusting layer (7) contains Bi2O3 and TiO2, and with a composition of Bi2O3 and TiO2 contained in the transmittance adjusting layer (7) being denoted as (Bi2O3)?(TiO2)?, in molar ratio, ? and ? satisfy 0.2???0.7, 0.3???0.8, and ?+?=1.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: September 10, 2013
    Assignee: Panasonic Corporation
    Inventors: Hideo Kusada, Rie Kojima, Takashi Nishihara, Noboru Yamada
  • Publication number: 20130229896
    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.
    Type: Application
    Filed: April 3, 2013
    Publication date: September 5, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Jakob Gerrit Nijboer, Ijtsma Pope
  • Patent number: 8524348
    Abstract: A data storage device includes a substrate layer, made of a moldable non-photopolymer plastic substrate and having a servo layer, adjoined to a stacked film structure that is constructed of multiple functional films, having data layers, with spacer film(s) disposed between each of the functional films. Methods of manufacturing the data storage device include using a roll-to-roll system to adhere thin spacer film extrusions between the multiple functional film extrusions so as to construct the stacked film structure. An additional method uses an application of functional film coating to thin spacer films and a roll-to-roll system.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: September 3, 2013
    Assignee: General Electronics Company
    Inventors: Xiaolei Shi, Peter William Lorraine, Victor Petrovich Ostroverkhov, Ri-an Zhao
  • Patent number: 8526291
    Abstract: Optical information recording medium comprises: a plurality of recording layers 14, each of which undergoes a change in refractive index by irradiation with recording beam; and an intermediate layer 15 provided between recording layers 14. The recording layer 14 contains polymer binder and dye dispersed in the polymer binder, and at least in proximity to an interface (far-side interface 18) between the intermediate layer 15 and a recording layer 14 disposed adjacent to incident side of the intermediate layer 15 from which the recording beam enters the intermediate layer, the intermediate layer 15 has refractive index different from that of the recording layer 14. Glass transition temperature of the polymer binder is lower than melting point and decomposition point of the dye, and refractive index of the polymer binder changes by receiving heat generated when the dye absorbs the recording beam, whereby information is recordable in the recording layer.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: September 3, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Hidehiro Mochizuki, Tatsuo Mikami, Shunichi Hoshino
  • Patent number: 8520481
    Abstract: In a multilayer optical recording medium, it is an object to suppress generation of crosstalk while reducing an interlayer distance of recording and reading layers. In an optical recording medium including three or more recording and reading layers, a first distance, and a second distance greater than the first distance by 3 ?m or more are alternately defined as interlayer distances of recording and reading layers.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: August 27, 2013
    Assignee: TDK Corporation
    Inventors: Takashi Kikukawa, Atsuko Kosuda, Motohiro Inoue, Hideki Hirata
  • Patent number: 8520490
    Abstract: In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is prescribed to be 0.18 though 0.27 or a numerical aperture of an address pit signal occupying in a reproduced signal in a non recording state is prescribed to be more than 0.3.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: August 27, 2013
    Assignee: JVC Kenwood Corporation
    Inventors: Tetsuya Kondo, Eiji Nakagawa, Hirofumi Nagano
  • Patent number: 8520489
    Abstract: The pit arrays on an optical disc medium are made to wobble at a frequency which is higher than the band of frequencies that a tracking servo can follow and which is lower than the band of frequencies of the reproducing signal. A wobble detection signal according to the amount of wobble is obtained from the tracking error signal and used as a reference signal for frequency acquisition. Alternatively, the pit arrays on the medium are wobbled at a frequency which is within the band of frequencies that the tracking servo can follow and which is lower than the band of frequencies of the reproducing signal. In addition, a wobble detection signal corresponding to the amount of wobble is obtained either from the output signal from a compensator included in a tracking servo system or from a tracking drive signal and is used as a reference signal for frequency acquisition.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: August 27, 2013
    Assignees: Hitachi-LG Data Storage, Inc., Hitachi Consumer Electronics Co., Ltd.
    Inventor: Junya Iizuka
  • Publication number: 20130215727
    Abstract: The invention relates to a record carrier of a disc-like optically inscribable type, having a preformed track in which an auxiliarily signal comprising a sequence of codes is recorded by means of a preformed track modulation. The codes comprise a sequence of address codes (AC) specifying the addresses of the track portions in which said address codes (AC) are recorded and special codes (SC). The special codes (SC) can be distinguished from said address codes (AC) and specify control data for controlling a recording by a recording device. The sequence can be obtained by replacing in a sequence of address codes (AC) with consecutive address values a plurality of said address by special codes (SC). The periodic pattern of address codes and special codes has a predetermined positional relationship with respect to a predetermined reference address. Such as for example a positional shift with respect to the start of a Lead-in area.
    Type: Application
    Filed: February 26, 2013
    Publication date: August 22, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventor: Robertus A.J. Van Kollenburg
  • Patent number: 8514681
    Abstract: 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.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: August 20, 2013
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Masakazu Ikeda, Koichiro Nishimura, Yutaka Nagai
  • Patent number: 8509044
    Abstract: A recording medium and apparatus enable the number of data units of recording pulse information to be reduced. The recording medium includes an information area for recording set values of a recording pulse for forming recording marks. The set values include preceding space-based set values having a first reference value as a set value of a recording pulse corresponding to a predetermined preceding space and a first difference set value of a recording pulse corresponding to a space other than the predetermined preceding space; and trailing space-based set values having a second reference value as a set value of a recording pulse corresponding to a predetermined trailing space and a second difference set value of a recording pulse corresponding to a space other than the predetermined trailing space and which is expressed as a difference from the second reference value.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: August 13, 2013
    Assignees: Panasonic Corporation, Sony Corporation, TDK Corporation, Hitachi Consumer Electronics Co., Ltd.
    Inventors: Yasumori Hino, Junya Shiraishi, Hiroyasu Inoue, Koichi Watanabe
  • Patent number: 8509049
    Abstract: 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, in this optical recording medium, an intermediate layer whose thickness variation is managed to be equal to or less than a predetermined value is provided between a first recording part and a second recording part.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: August 13, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera, Hideo Ando, Naomasa Nakamura
  • Publication number: 20130201813
    Abstract: The present invention is to realize a proper inner zone layout in a quadruple-layer disk. A test area is provided in the inner zone (inner circumference side area) in each of recording layers. If two test areas closer to the outer circumference, of four test areas, are defined as a first pair and two test areas closer to the inner circumference are defined as a second pair, the test areas of the first pair and the test areas of the second pair are so disposed as to be prevented from overlapping with each other in the layer direction. Two test areas of the first pair have the same consumption direction of the test area, and are so disposed that the areas to be used next hardly overlap with each other in the layer direction. Two test areas of the second pair have the same consumption direction of the test area opposite to the consumption direction of the test area in the first pair, and are so disposed that the areas to be used next hardly overlap with each other in the layer direction.
    Type: Application
    Filed: July 1, 2010
    Publication date: August 8, 2013
    Applicants: Sony Corporation, Panasonic Corporation, Samsung Electronics Co., Ltd., Hitachi Consumer Electronics Co., Ltd., TDK Corporation
    Inventors: Yoshihiro Akimoto, Shoei Kobayashi, Motoshi Ito, Yasumori Hino, Hiroyasu Inoue, Harukazu Miyamoto, Koichiro Nishimura, Sung-hee Hwang, In-oh Hwang
  • Publication number: 20130201806
    Abstract: An information recording medium adopting a zone CAV method is provided with: a guide layer in which tracks are formed in advance; and a plurality of recording layers laminated on the guide layer. On the tracks, a plurality of guide areas, each of which has a physical structure for carrying guide information for guidance, are arranged discretely at arrangement intervals of predetermined distance or less which is set in advance in a track direction and are shifted between a plurality of tracks throughout the plurality of tracks which are adjacent to each other in a radial direction. On the tracks, moreover, a plurality of specific areas, each of which has a predetermined pattern, are respectively arranged in a same phase from an inner circumference to an outer circumference in the radial direction such that the predetermined pattern can be detected in a state in which tracking servo is open.
    Type: Application
    Filed: April 13, 2010
    Publication date: August 8, 2013
    Applicant: PIONEER CORPORATION
    Inventors: Masayoshi Yoshida, Hideki Kobayashi, Takuya Shiroto
  • Patent number: 8503280
    Abstract: 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.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: August 6, 2013
    Assignee: JVC Kenwood Corporation
    Inventor: Yasuhiro Ueki
  • Patent number: 8498191
    Abstract: An information recording/reproducing method includes: setting light beam power from a light source, to second power P2, which is weaker than first power P1, and detecting the number of the recording layers provided for an optical disc; controlling an objective lens to focus the light beam on one recording layer which is the closest to the objective lens, in a condition that the detected number of the recording layers ?3; setting the power of the light beam to third power P3, between P1 and P2; specifying the number of the recording layers provided for the optical disc on the basis of layer information, which is information associated with the one recording layer; and setting the power of the light beam to P1, reading the layer type information recorded in advance in the one recording layer, and specifying a disc type based on the read layer type information.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: July 30, 2013
    Assignee: Pioneer Digital Design and Manufacturing Corporation
    Inventors: Yoshio Sasaki, Yasushi Oshima
  • Patent number: 8488437
    Abstract: In a recording medium, an extension address is obtained without changing the number of bits of the address embedded in the wobble. The wobble address is partially or wholly encoded to embed the address information. At the time of reproducing the address information, the original address information is obtained by restoring the embedded information by the decoding process.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: July 16, 2013
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Akio Fukushima, Masakazu Ikeda, Koichi Hirose, Koichiro Nishimura
  • Patent number: 8472294
    Abstract: A process of reproducing information according to the present invention includes: reproducing record data recorded on an information-recording medium including a data area for recording the record data, and a defect control area for recording defect information of the data area; storing the defect information in a storage unit; and reducing a storage area of the storage unit which is used for storing the defect information.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: June 25, 2013
    Assignee: Panasonic Corporation
    Inventor: Daisuke Shimoda
  • Patent number: 8472289
    Abstract: A method and system is provided for doing compact disc TOC look-ups cheaply and efficiently by using a special indexing mechanism particularized to TOC look-ups. The indexing scheme allows a successful search of TOCs using as few as 2 disk seeks in contrast to the usual hundreds of disk seeks required by a general purpose indexing scheme. This performance improvement is achieved by using a static database of TOCs in a read-only implementation so that the data organization and code for lookups can be optimized without regard for any updates to this data at a later time. The index data structure is arranged in a fashion that allows for seek-less, linear scans of index information once the proper scan location in the index has been identified.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: June 25, 2013
    Assignee: Gracenote, Inc.
    Inventors: Steven D. Scherf, Gary Stroud
  • Publication number: 20130155825
    Abstract: Provided are recording media, recording/reproducing apparatuses, and recording methods for use in long-term data retention. Recording medium information may be copied and stored in a new information zone in a data area. Accordingly, if medium recognition of a lead-in area and/or a lead-out area fails, a recording medium may be recognized using the data recorded in the new information zone.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 20, 2013
    Inventor: Hyck-jin Lee
  • Patent number: 8465823
    Abstract: An optical media such as an optical tape includes a substrate, a pre-format layer on one side of the substrate, and a back side coating. The back side coating is optically transparent and is electrically conductive. One of the substrate and the pre-format layer is between the back side coating and the other one of the substrate and the pre-format layer.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: June 18, 2013
    Assignee: Oracle International Corporation
    Inventor: Eui Kyoon Kim
  • Patent number: 8462606
    Abstract: A super-resolution medium (1) has a medium identification information for specifying a type of medium recorded in a medium information area (3) by use of pre-pits having a length not shorter than a length of a resolution limit of an optical system in a reproducing device (10).
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: June 11, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hideharu Tajima, Masaki Yamamoto, Go Mori, Nobuyuki Takamori
  • Patent number: 8462604
    Abstract: A method and an apparatus for reading data from or writing data to an optical recording medium is described, the data being stored as marks having different lengths. Marks having a length below the limit of diffraction at a first wavelength are read or written with the first wavelength, whereas marks having a length above the limit of diffraction at the first wavelength are read or written with a second wavelength larger than the first wavelength.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: June 11, 2013
    Assignee: Thomson Licensing, LLC
    Inventor: Gael Pilard
  • Publication number: 20130135976
    Abstract: To carry out a track control by compensating for an offset caused by a radial tilt when a track control of a main beam is carried out by detecting tracking information provided at a reference layer of a spatial recording medium by a guide beam, there are formed a first mark pair row aligned with the first mark pairs in a radius direction by a track pitch, and other mark pair row aligned with the second mark pairs in the radius direction by the track pitch. The other mark pair row is arranged in the radius direction by being shifted from the first mark pair row by a prescribed distance. The track control is made to be able to carry out by dispensing with an uncontrollable region by selecting one of plural track error signals generated from the plural mark pairs.
    Type: Application
    Filed: November 27, 2012
    Publication date: May 30, 2013
    Applicant: HITACHI CONSUMER ELECTRONICS CO., LTD.
    Inventor: HITACHI CONSUMER ELECTRONICS CO., LTD.
  • Patent number: 8446810
    Abstract: An information recording medium includes a track on which a data sequence is recordable, and at least one of a PIC area in which a recording condition for recording the data sequence on the track is recorded. The recording condition includes a parameter for adjusting a position of a trailing end of a cooling pulse in a recording pulse waveform for forming the recording mark. The parameter is classified using a combination of a length of the recording mark, a length of a first space located adjacently previous to the recording mark and a length of a second space located adjacently subsequent to the recording mark. A recording apparatus is provided for recording a data sequence on an information recording medium based on the recording condition recorded on the information recording medium. An evaluation apparatus is provided for evaluating an information recording medium having the recording parameter recorded thereon.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: May 21, 2013
    Assignee: Panasonic Corporation
    Inventors: Isao Kobayashi, Atsushi Nakamura, Yasumori Hino
  • Patent number: 8446803
    Abstract: According to one embodiment, an information storage medium includes an organic dye material which records information with a light beam having a wavelength equal to or smaller than 620 nm.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: May 21, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideo Ando, Seiji Morita, Koji Takazawa
  • Patent number: 8446807
    Abstract: A super-resolution medium (1) has a medium identification information for specifying a type of medium recorded in a medium information area (3) by use of pre-pits having a length not shorter than a length of a resolution limit of an optical system in a reproducing device (10).
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: May 21, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hideharu Tajima, Masaki Yamamoto, Go Mori, Nobuyuki Takamori
  • Patent number: 8447171
    Abstract: A storage medium for storing text-based subtitle data including style information, a reproducing apparatus and methods are provided for reproducing text-based subtitle data including style information separately recorded on the storage medium. The storage medium includes: multimedia image data; and text-based subtitle data for displaying subtitles on an image based on the multimedia image data, wherein the text-based subtitle data includes dialog information indicating subtitle contents to be displayed on the image, style information indicating an output style of the dialog information, and partial style information indicating an output style applied to a portion of the dialog information. Accordingly, subtitles can be provided in a plurality of languages without limited to the number of units of subtitle data. In addition, subtitle data can be easily produced and edited. Likewise, an output style of the subtitle data can be changed in a variety of ways.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: May 21, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kil-soo Jung, Sung-wook Park
  • Patent number: 8441898
    Abstract: A method for copy protection includes providing audiovisual or audio data stored in sectors of a record carrier having a file system, and providing additional or modified data to be stored in further sectors. The method includes generating a first file of the file system referencing at least a part of the sectors and none of the further sectors, so when the first file is rendered by a playback device, the data is reproduced which is included in the part of the sectors. The method also includes generating a second file of the file system being another file than the first file and referencing at least a part of the sectors and further referencing at least one of the further sectors, such that when the second file is rendered by the playback device the part of the sectors and the at least one of the further sectors are reproduced.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: May 14, 2013
    Assignees: SONY Corporation, SONY DADC Corporation, SONY DADC Austria AG
    Inventors: Klaus Holzapfel, Andreas Winter, Markus Spitzlinger, Kenjiro Ueda
  • Patent number: 8441911
    Abstract: An optical disc has a data layer including a data-layer substrate made of a transparent material and a data-layer reflection film formed on an upper side of the data-layer substrate, a display layer including a display-layer substrate having a display pattern and a display-layer reflection film formed on a lower side of the display-layer substrate, and an intermediate layer made of a transparent material provided between an upper side of the data layer and a lower side of the display layer. The data- and display-layer reflection films exhibit specific reflectivity to allow the display pattern to be visible from a lower side of the data-layer substrate through the data-layer reflection film.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: May 14, 2013
    Assignees: Victor Creative Media Co., Ltd., JVC Kenwood Corporation
    Inventors: Tadahiro Sugawara, Wataru Kuzuta, Atsuhisa Yamamoto, Fumitaka Tsuji
  • Patent number: 8441897
    Abstract: An optically-readable disk includes a device that disrupts readability of the disk when the disk is spun at an angular velocity substantially greater than required to play the disk in its intended playing device, or when a defined integral of velocity and time is exceeded. The device may include a fluid container that disperses a data-disruptive fluid. The device may include a membrane or layer that is disrupted when the disk is rotated above a defined angular velocity, or when a defined integral of velocity and time is exceeded. The device may include an electro-optical material that is activated by an electrical signal from a controller in response to an input from a sensor responsive to motion of the disk.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: May 14, 2013
    Inventor: Gary Stephen Shuster
  • Patent number: 8437241
    Abstract: A method of recording, and an apparatus for recording, data on a write-once disc, and the write-once disc used with the method and the apparatus. The write-once disc includes a plurality of update areas in which to record a predetermined type of updated information, at least one main access information area (AIA) in which to record main access information (AI), the main AI indicating a final update area in which finally updated information is recorded, among the plurality of update areas, and at least one sub AIA in which to record sub AI, the sub AI indicating a location of the finally updated information recorded in the final update area.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: May 7, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-hee Hwang, Jung-wan Ko
  • Patent number: 8437243
    Abstract: An optical information recording medium (1) includes on a substrate (50), a ROM layer (20), a RE layer (40), an intermediate layer (30) separating the ROM layer (20) and the RE layer (40), and a light transmitting layer (10) provided farthest from the substrate (50). The RE layer (40) is an information recording layer provided most farthest from the light transmitting layer (10), and is a recording layer of BCA recorded in a format easily determinable as compared to an information recording format used in the ROM layer (20), and antifouling property of a surface of the light transmitting layer (10) is set based on the RE layer (40). This makes it easy for the recording and reproducing apparatus to confirm a disc type, allows for sharing one recording and reproducing apparatus with other types of optical discs, and simplifies the disc production.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: May 7, 2013
    Assignees: Sharp Kabushiki Kaisha, Memory-Tech Corporation, TDK Corporation
    Inventors: Hideharu Tajima, Atsushi Etoh, Ryo Kojima, Masahito Konishi, Isamu Kuribayashi, Makoto Suzuki
  • Patent number: RE44529
    Abstract: A record carrier (1) has a servo track (4) indicating an information track (9) intended for recording information blocks. The servo track (4) has a periodic variation of a physical parameter at a predetermined frequency, usually called wobble. The servo track has modulated parts for encoding position information according to a predetermined type of modulation. The record carrier includes a management area in which the servo track includes permanent data. The permanent data is encoded using a different type of modulation, but using the variations of the same physical parameter. Direct digital modulation (41) is proposed for the different type of modulation.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: October 8, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Cornelis Marinus Schep, Aalbert Stek, Jacques Heemskerk