Arrangement Of The Information On The Record Carrier, E.g. Form Of Tracks [n: Actual Track Shape, (e.g. Wobbled) Or Cross-section, (e.g. V-shaped); Sequential Information Structures, (e.g. Sectoring Or Header Formats Within A Track] {g11b 7/007} Patents (Class G9B/7.029)

  • Publication number: 20130077459
    Abstract: In a recording and reproducing apparatus, an optical disc is rotated in a rotating direction and an optical system focuses a laser beam on the optical disc to form a beam spot on the optical disc. The optical system is provided with a scanner which deflects the laser beam along a radial direction of the optical disc in such a manner that the beam spot follows a first scan trajectory along a first direction crossing the rotating direction and a second scan trajectory along a second direction different from the first direction. A first data track with a sequence of recording pits along the first scan trajectory is formed and arranged on the optical disc.
    Type: Application
    Filed: June 29, 2012
    Publication date: March 28, 2013
    Inventors: Yuuzo KAMIGUCHI, Masahiro KANAMARU, Katsuya SUGAWARA, Keiichiro YUSU, Masatoshi SAKURAI, Kazuki MATSUMOTO, Takehiro HIRAMATSU
  • Publication number: 20130074104
    Abstract: A medium in which information is recorded has: a guide layer of one or two layers each having a spiral track added with address information; and a plurality of recording layers in which depth positions from the guide layer differ. A user data area, spare areas, and a management information storage area for storing information about use of the spare areas are included in each of the plurality of recording layers. An inner peripheral spare area locating on an inner peripheral side of the user data area is configured so as to be used to record the information from an outer peripheral direction toward an inner peripheral direction, and an outer peripheral spare area locating on an outer peripheral side of the user data area is configured so as to be used to record the information from the inner peripheral direction toward the outer peripheral direction.
    Type: Application
    Filed: August 13, 2012
    Publication date: March 21, 2013
    Inventor: Kenji Akahoshi
  • Publication number: 20130064053
    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: November 5, 2012
    Publication date: March 14, 2013
    Applicant: JVC Kenwood Corporation
    Inventor: JVC Kenwood Corporation
  • Publication number: 20130064056
    Abstract: Method for reading data from an optical disc comprising a substrate layer, a read-only data layer, and a nonlinear layer with a super-resolution structure disposed on the data layer, the read-only data layer including diffractive pits and lands having a length larger than the diffraction limit of the pickup and super-resolution pits and lands having a length smaller than the diffraction limit of the pickup, the method comprising the steps of using a pickup including a laser for providing a HF signal for retrieving of the data of the data layer, providing a constant laser power for retrieving of the data, and pulsing the laser at the end of a diffractive pit or land. The Apparatus comprises a pickup with a laser and a comparator responsive to a threshold level and to the HF signal, for providing a trigger signal for pulsing of the lamer.
    Type: Application
    Filed: May 9, 2011
    Publication date: March 14, 2013
    Applicant: THOMSON LICENSING
    Inventors: Gael Pilard, Larisa Von Riewel
  • Publication number: 20130064054
    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: November 5, 2012
    Publication date: March 14, 2013
    Applicant: JVC Kenwood Corporation
    Inventor: JVC Kenwood Corporation
  • Publication number: 20130044578
    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: Application
    Filed: October 25, 2012
    Publication date: February 21, 2013
    Applicant: HITACHI CONSUMER ELECTRONICS CO., LTD.
    Inventor: HITACHI CONSUMER ELECTRONICS CO., LTD.
  • Publication number: 20130033973
    Abstract: Provided is an optical recording medium, including a recording target track that is a track on which small record carriers are arranged and on which information recording is performed by modulating the small record carriers through light irradiation; and a wobbling track on which the small record carriers are arranged in a wobbling manner, wherein a single wobbling track is formed to run parallel to a set of a plurality of recording target tracks.
    Type: Application
    Filed: July 20, 2012
    Publication date: February 7, 2013
    Applicant: SONY CORPORATION
    Inventors: Yoshinori Suzuki, Kazuhiko Fujie, Koji Sekiguchi
  • Publication number: 20120307607
    Abstract: Obtain an expanded address without altering the bit number of an address which is embedded in a wobble. Generate a virtual bit which is not recorded on a disc, and which is expressed by the disparity from the rules and the presence or absence of information embedded in part or all of the wobble address.
    Type: Application
    Filed: November 10, 2010
    Publication date: December 6, 2012
    Inventors: Masakazu Ikeda, Koichiro Nishimura, Yutaka Nagai
  • Publication number: 20120307608
    Abstract: Obtain an expanded address without altering the bit number of an address which is embedded in a wobble. Generate a virtual bit which is not recorded on a disc, and which is expressed by the disparity from the rules and the presence or absence of information embedded in part or all of the wobble address.
    Type: Application
    Filed: November 10, 2010
    Publication date: December 6, 2012
    Inventors: Masakazu Ikeda, Koichiro Nishimura, Yutaka Nagai
  • Publication number: 20120287764
    Abstract: A disc has an outer section on which digital media can be recorded and a core in its center in which a flash memory is embedded with the core having a central hole and electrical contacts to the flash memory. A disc drive has a drive spindle that is to extend into the disc core central hole with one of the spindle or spindle hub having electrical contacts to engage with the core electrical contacts so that data can be written into and/or read from the core flash memory by electronic components of the drive.
    Type: Application
    Filed: June 19, 2012
    Publication date: November 15, 2012
    Inventor: Gregory R. Hintermeister
  • Publication number: 20120269049
    Abstract: An information recording medium is composed of a substrate having a microscopic pattern constituted by a continuous substrate of grooves formed with a groove portion and a land portion alternately, a recording layer, and a light transmitting layer. The microscopic pattern is formed with satisfying a relation of P??/NA, wherein P is a pitch of the land portion or the groove portion, ? is a wavelength of reproducing light, and NA is a numerical aperture of an objective lens. The land portion is formed with wobbling so as to be parallel with each other for both sidewalls of the land portion. Auxiliary information and a reference clock is recorded alternately. Information is recorded in the recording layer corresponding to a land portion by either one change of reflectivity difference and refractive index difference in the recording layer.
    Type: Application
    Filed: April 30, 2012
    Publication date: October 25, 2012
    Applicant: JVC Kenwood Corporation
    Inventors: Tetsuya Kondo, Kenji Oishi
  • Publication number: 20120250474
    Abstract: An optical disk apparatus which conducts overwriting of data on a rewritable optical disk or conducts write-once recording of data on a write-once optical disk includes a control unit for receiving a recording command which specifies a recording area and orders recording and receiving transfer data, and a collation unit for collating existing data on the optical disk with the transfer data. Upon reception of the recording command and the transfer data by the control unit, the existing data is collated with the transfer data by the collation unit, and overwrite recording of data in places where the transfer data is different from the existing data is conducted on the rewritable optical disk, or data in places where the transfer data is different from the existing data is recorded in an unrecorded area of the write-once optical disk.
    Type: Application
    Filed: February 16, 2012
    Publication date: October 4, 2012
    Inventor: Masayuki KOBAYASHI
  • Publication number: 20120250476
    Abstract: The present invention relates to a recording/reproducing device that records data on a double-sided recordable optical disk for storage and management purposes. The device includes a unit which stores a plurality of optical disks, a unit which records data onto and reproduces data from an upper side of an optical disk, a unit which records data onto and reproduces data from a lower side of an optical disk, a unit which conveys an optical disk between the disk storage unit and each recording/reproducing unit. When a request for reading data recorded on the lower side of the disk is received while the upper side is being written onto, a control unit interrupts a data recording process on the upper side, reproduces data recorded on the lower side, and after completion of reproducing the recorded data, resumes the interrupted data recording process.
    Type: Application
    Filed: March 26, 2012
    Publication date: October 4, 2012
    Inventors: Hisahiro HAYASHI, Osamu Kawamae
  • Publication number: 20120250473
    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: Application
    Filed: February 13, 2012
    Publication date: October 4, 2012
    Applicants: Sony Corporation, SONY DADC Austria AG, SONY DADC CORPORATION
    Inventors: Klaus HOLZAPFEL, Andreas Winter, Markus Spitzlinger, Kenjiro Ueda
  • Publication number: 20120236014
    Abstract: A non-transitory computer-readable medium stores therein a data storage program causing a computer to execute a process. The process includes obtaining first data by grouping values of spatially discrete distribution points at each of times by each of the spatially discrete distribution points and chronologically sorting the grouped values, obtaining second data by compressing the first data in accordance with at least one of a plurality of compression conditions for each of the distribution points or each group of a plurality of the distribution points, the plurality of compression conditions including a necessity of compression, a compression interval, and a compression algorithm type, and storing the second data in a storage device.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 20, 2012
    Applicant: FUJITSU LIMITED
    Inventor: Eiji OHTA
  • Publication number: 20120170433
    Abstract: The present invention provides a recording medium and a recording/reproducing apparatus which enable the number of data units of recording pulse information to be reduced by dividing the recording pulse information into 1 byte-parameter information and differences from a value thereof, and the recording pulse information to be recorded on an existing DI area.
    Type: Application
    Filed: September 16, 2010
    Publication date: July 5, 2012
    Inventors: Yasumori Hino, Junya Shiraishi, Hiroyasu Inoue, Koichi Watanabe
  • Publication number: 20120170430
    Abstract: An information recording medium (100) is provided with a plurality of recording layers (110, 120, 130, and 140) for recording data, wherein each of the plurality of recording layers corresponds to one of a plurality of record formats, and a first recording layer number (SLN) assigned to each of the plurality of recording layers in accordance with the positions in which the recording layers are arranged, and a second recording layer number (LLN) assigned for each of the corresponding record formats are included in an address area (14) of the data.
    Type: Application
    Filed: November 6, 2009
    Publication date: July 5, 2012
    Applicant: PIONEER CORPORATION
    Inventors: Yoshimi Tomita, Keiji Katata
  • Publication number: 20120134249
    Abstract: A method for copy protection in which an audiovisual or audio data is divided into a plurality of portions. The plurality of portions is at least partly scrambled and prepared so as to be stored on a record carrier in the scrambled order. This is done so that a physical position on the record carrier, e.g., a sector of the record carrier, where a respective portions of the divided data is stored depends on the scrambled order.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 31, 2012
    Applicant: SONY DADC Austria AG
    Inventors: Markus SPITZLINGER, Andreas WINTER, Walter HINTERHOELZL, Peter EISENMANN, Klaus HOLZAPFEL, Dominik ENGEL, Juergen GRUENBERGER
  • Publication number: 20120134248
    Abstract: A method for copy protection in which an audiovisual or audio data is divided into a plurality of portions. The plurality of portions is at least partly scrambled and prepared so as to be stored on a record carrier in the scrambled order. This is done so that a physical position on the record carrier, e.g., a sector of the record carrier, where a respective portions of the divided data is stored depends on the scrambled order.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 31, 2012
    Applicant: SONY DADC Austria AG
    Inventors: Markus Spitzlinger, Andreas Winter, Walter Hinterhoelzl, Peter Eisenmann, Klaus Holzapfel, Dominik Engel, Juergen Gruenberger
  • Publication number: 20120127840
    Abstract: In an optical disc (100) having a plurality of recording layers, layer specifying information is recorded for specifying a recording layer to be run first when the optical disc (100) is inserted into an optical disc device (1) which carries out recording or reproduction of information with respect to the optical disc (100). Therefore, a recording layer intended by at least a disc supplier can be run first. In the optical disc (100) including an L1 layer which is a read-only recording layer and an L0 layer which is a recordable layer, layer specifying information for specifying the L0 layer in priority to the L1 layer is recorded as the information recording layer to be run first when the optical disc (100) is inserted into the optical disc device (1) which carries out recording or reproduction of information with respect to the optical disc (100).
    Type: Application
    Filed: July 20, 2010
    Publication date: May 24, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Takashi Arimoto, Go Mori, Junsaku Nakajima, Shigemi Maeda
  • Publication number: 20120113783
    Abstract: An information recording medium, and a recording/reproducing apparatus and a recording/reproducing method for the recording medium. Original data is sequentially updated by replacing an original recording block with one or more replacement recording blocks. A replacement recording block includes at least one of an original address field indicating a location of the original recording block or a previous address field indicating a location of an immediately previous recording block. Replacement information is effectively recovered in a system where a replacement for logical overwriting (LOW) occurs in either a spare area and a user data area by reference to the address fields in each replacement recording block.
    Type: Application
    Filed: January 18, 2012
    Publication date: May 10, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-hee Hwang, Jung-wan Ko
  • Publication number: 20120099410
    Abstract: A DRM disk such as a Blu-ray stores content in a high resolution version for playing by a disk player. The disk also stores the same content in a lower resolution version for playing by a secondary device such as a Playstation Portable (PSP). The disk can be engaged with the disk player and the lower resolution format transferred to the secondary player through a mechanism such as a removable medium (e.g., a Sony Memory Stick®) or a USB connection or other means in accordance with DRM restrictions on the disk.
    Type: Application
    Filed: December 28, 2011
    Publication date: April 26, 2012
    Inventor: Christopher Jensen Read
  • Publication number: 20120087218
    Abstract: A write-once read-many information recording medium is provided, which is capable of easily searching for a latest DDS and a latest defect list. At least one disc management working area is sequentially allocated in a predetermined direction on the write-once read-many information recording medium of the present invention. The latest defect list and the latest DDS are provided in a recorded disc management working area neighboring a border between the recorded disc management working area and an unrecorded disc management working area, where the latest defect list precedes the latest DDS in the predetermined direction.
    Type: Application
    Filed: December 13, 2011
    Publication date: April 12, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Yoshihisa TAKAHASHI, Motoshi ITO
  • Publication number: 20120075970
    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: Application
    Filed: July 13, 2011
    Publication date: March 29, 2012
    Inventor: Junya Iizuka
  • Publication number: 20120075969
    Abstract: The present invention relates to a recording/reproducing method, a recording/reproducing apparatus and a recording medium. In the conventional art, there is no method of distinguishing a program recorded on an RE layer by an application on a ROM layer, from a program recorded on the RE layer by a user, on a hybrid disc. The present invention solves a problem as described above by separating a playlist for recording performed by the application on the ROM layer, from a playlist for recording performed by the user, and retaining information indicating a subject which has performed the recording.
    Type: Application
    Filed: April 19, 2011
    Publication date: March 29, 2012
    Inventor: Akinobu WATANABE
  • Publication number: 20120075968
    Abstract: The present invention relates to a recording/reproducing method, a recording/reproducing apparatus and a recording medium. In the conventional art, there is no method of distinguishing a program recorded on an RE layer by an application on a ROM layer, from a program recorded on the RE layer by a user, on a hybrid disc. The present invention solves a problem as described above by separating a folder in which the application on the ROM layer performs recording, from a folder in which the user performs recording, and retaining information indicating a subject which has performed the recording.
    Type: Application
    Filed: April 14, 2011
    Publication date: March 29, 2012
    Inventor: Akinobu WATANABE
  • Publication number: 20120063279
    Abstract: A recording medium, a data recording/reproducing method and a data recording/reproducing apparatus are disclosed. A recording medium comprises a data zone where user data are recorded; an inner zone located at an inner circumference of the data zone; and an outer zone located at an outer circumference of the data zone, wherein the data zone includes at least one spare area, and at least one of the inner zone and the outer zone includes at least one disc management area, the disc management area including: defect management information of the recording medium; general management information including information of the defect management information; and address information of the spare area that can be used as a defective replacement cluster, the general management information including address information per cluster of the disc management area where the defect management information is recorded.
    Type: Application
    Filed: May 3, 2010
    Publication date: March 15, 2012
    Inventors: Yong Cheol Park, Hyug Jin Kwon, Sung Hoon Kim
  • Publication number: 20120063280
    Abstract: Audio information is stored on a unitary storage medium with a Table-of-Contents (TOC) mechanism for therein specifying an actual configuration of various audio items on the medium. In particular, one or more Sub-TOCs are each assigned to a respective different audio format.
    Type: Application
    Filed: November 22, 2011
    Publication date: March 15, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventor: Johannes J. Mons
  • Publication number: 20120033535
    Abstract: The present invention provides a multilayer optical disc and an optical disc drive which can identify recording layers without performing tracking servo control or changing the structure of the disc. In a multilayer optical disc 100, the recording layer includes a layer identification region 101 having a recording pattern for layer identification, the layer identification region 101 including a layer specific region 102 having a specific pattern and a common region 103 having a common pattern different from the specific pattern, the layer specific region 102 being provided at a different radial position in each of the recording layers. The optical disc drive detects the layer specific region 102 having the specific pattern from the layer identification region 101 of the multilayer optical disc 100, and identifies the current layer based on the radial position of the layer specific region.
    Type: Application
    Filed: July 11, 2011
    Publication date: February 9, 2012
    Inventors: Manabu SHIOZAWA, Takakiyo Yasukawa
  • Publication number: 20120026848
    Abstract: An information storage medium is provided. The information storage medium includes a user data area on which user data is recorded, and a temporary disc management area on which a space bitmap representing a recording status of at least one recording/reproducing unit block of the user data area is recorded. The temporary disc management area including information about an additional space bitmap which is assigned to provide additional space to represent the recording status of the at least one recording/reproducing unit block of the user data area.
    Type: Application
    Filed: October 12, 2011
    Publication date: February 2, 2012
    Inventors: Sung-Hee HWANG, Kyung-Geun Lee, In-Oh Hwang
  • Publication number: 20120014236
    Abstract: A recording medium and a recording apparatus for storing manufacturer information for supporting specific functions for each manufacturer and a method therefor. A reproducing apparatus for reproducing manufacturer information for supporting specific functions and a method therefor is also provided. If a recording apparatus modifies the contents of the recording medium, then it should record its manufacturer's identification code. A recording apparatus/reproducing apparatus should check the identification code on the recording medium before using its own manufacture information item for some specific function. Also, it is possible to reduce the time required to determine whether the manufacturer information items are effective.
    Type: Application
    Filed: September 25, 2011
    Publication date: January 19, 2012
    Inventors: Seong-jin Moon, Young-nam Oh, Tae-yun Chung, Jung-suk Kang, Pan-gie Park
  • Publication number: 20120014232
    Abstract: An address-accessing device includes first and second information generators for producing first and second information according to the received address signals; a phase offset detector for producing a phase offset according to the first and second information; a reference signal generator for producing a reference signal according to the phase offset, the first information and the second information; and a decoder used to determine the structure type of an address-in-pregroove unit (ADIP) according to the reference value. This address-accessing device is capable of adjusting the decision level and the phase offset automatically to lower the error rate occurring in the address access procedure.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Inventors: Pi-Hai LIU, Chun-Nan Chen
  • Publication number: 20120014231
    Abstract: A write-once recording medium is provided, which comprises a management information area for recording management information for managing a recorded state, and a user data area for recording user data. The user data area is configured to contain at least one recording area. At least one session is configured to contain at least one of the at least one recording area. The management information contains range information indicating a recording range of the at least one recording area and identification information for identifying the recording area located at a boundary of the session.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Motoshi ITO, Hiroshi UEDA
  • Publication number: 20120008471
    Abstract: The present invention allows the usability of a write-once recording medium to be enhanced. The write-once recording medium is provided with an ordinary recording/reproduction area, an alternate area, a first alternate-address management information area (DMA) and a second alternate-address management information area (TDMA). In addition, written/unwritten state indication information (a space bitmap) is also recorded. The second alternate-address management information area is an area allowing alternate-address management information recorded therein to be renewed by adding alternate-address management information thereto. In addition, the written/unwritten state indication information indicates whether or not data has been recorded in each data unit (cluster) on the recording medium. Thus, it is possible to correctly execute management of defects and properly implement renewal of data in the write-once recording medium.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 12, 2012
    Applicant: Sony Corporation
    Inventors: Tomotaka KURAOKA, Shoei Kobayashi, Mitsutoshi Terada
  • Publication number: 20110305122
    Abstract: A recording device performs recording on an optical disc recording medium having a reference face having a reflection film provided with a position guide, and a recording layer provided at a position of a depth different from that of the reference face and performing information recording by mark forming according to irradiation of light. The recording device includes a light generating and irradiation unit, a recording unit, a tracking mechanism, a first tracking error signal generating unit, a second tracking error signal generating unit, a tracking servo control unit, and a control unit.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 15, 2011
    Applicant: Sony Corporation
    Inventors: Yoshiyuki Urakawa, Yuichi Suzuki, Junichi Horigome
  • Publication number: 20110299372
    Abstract: An optical drive according to the present invention can write information on an optical disc, which includes a substrate on which a number of pre-pits (2) have been formed on its tracks (t1 to t8) and a recording film that is supported on the substrate. The optical drive includes an optical pickup, and a writing control section for controlling the optical pickup so that marks (3a, 3b) are recorded on the tracks (t1 to t8) so as to overlap with some of the pre-pits (2) and for making the optical pickup irradiate the recording film with a writing light beam. The recorded marks (3a, 3b) overlap with at least ten of the pre-pits (2).
    Type: Application
    Filed: December 17, 2010
    Publication date: December 8, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Hiroshi Kayama, Kazuo Momoo
  • Publication number: 20110292775
    Abstract: An information storage medium, and a recording/reproducing apparatus and method, the information storage medium including a plurality of recording layers, each layer including a lead-in area or a lead-out area, a data area, a middle area, and a dedicated area, wherein the data area is flexibly allocated according to data capacity to be recorded in each of the recording layers, the middle area is allocated behind the data area, and the dedicated area is allocated behind the middle area. The dedicated area for a special purpose may selectively be allocated in an outer circumferential area of the information storage medium, i.e., an optical disk including a plurality of recording layers. In particular, optical disks in various formats are provided in which dedicated areas for special purposes can selectively be allocated in outer circumferential areas of the optical disks depending on recording characteristics of the optical disks and the outer circumferential areas.
    Type: Application
    Filed: August 10, 2011
    Publication date: December 1, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Kyung-geun LEE
  • Publication number: 20110249540
    Abstract: Methods for operating an apparatus for reading from or writing to a Super-RENS optical recording medium, an apparatus for reading from Super-RENS optical recording media using such methods, and a Super-RENS optical recording medium suitable for such methods are described. The super-RENS optical recording medium has location information that is readable without super-RENS effect. The location information is provided as low-frequency information. For locating a position on the super-RENS optical recording medium, a reading light beam with a power below a power necessary for achieving a super-RENS effect is generated and the location information is retrieved from the super-RENS optical recording medium.
    Type: Application
    Filed: February 18, 2011
    Publication date: October 13, 2011
    Inventors: Frank Przygodda, Stephan Knappman, Herbert Hoelzemann
  • Publication number: 20110242950
    Abstract: In an optical head device which performs recording or reading of data in/from a high-density optical disc using an objective lens with a large NA, a saw-tooth shape diffraction element is used for also performing recording or reading of data in/from a conventional optical disc, such as DVD, CD, or the like. A step difference that produces an optical path length for blue light which is equal to or longer than the wavelength of the blue light and optical path lengths for red and infrared light which are shorter than the wavelengths of the red and infrared light is utilized so as to exert an inverse action on the blue light to those exerted on the red and infrared light. The effect of increasing the working distances for CD and DVD enables multiple compatibility. The above optical element is integrally combined with the objective lens to perform a tracking servo following operation.
    Type: Application
    Filed: August 1, 2008
    Publication date: October 6, 2011
    Inventors: Yoshiaki Komma, Toshiyasu Tanaka, Fumitomo Yamasaki
  • Publication number: 20110242948
    Abstract: There is provided an optical disc device including an objective lens, a lens actuator for driving the objective lens, a light-receiving unit, and a system control unit which determines, at startup, the values of parameters to be set for recording or reproducing data in or from the respective information layers, and performs setting and management of recording inhibition or reproduction inhibition for the respective information layers, wherein, even when an error occurs because the values of the parameter groups for the respective layers cannot be determined in an optical disc having laminated plural information layers, recording or reproduction can be performed for at least the layers for which the parameters can be correctly determined, without stopping the startup. Thereby, the states of the respective information layers are managed for each information layer, and reproduction or recording operation is rapidly started in the respective layers to effectively utilize the multilayer disc.
    Type: Application
    Filed: May 16, 2008
    Publication date: October 6, 2011
    Inventors: Tatsuo Suzuki, Katsuya Watanabe, Hiroyuki Yabuno
  • Publication number: 20110222390
    Abstract: A method and apparatus for selecting options on a media disc containing data. In one embodiment, an option identifier associated with an external surface of the media disc by a sensor unit coupled to a media player is detected, wherein the external surface is an outer surface of the media disc. A presentation option corresponding to the option identifier is identified to form an identified presentation option. Media content associated with the media disc is presented in a format corresponding to the presentation option.
    Type: Application
    Filed: March 9, 2010
    Publication date: September 15, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: James M. McArdle
  • Publication number: 20110222380
    Abstract: It takes time to read management information and the like from a recording layer in starting reproduction of an optical disc, thus posing a problem of poor usability. Moreover, a light beam needs to be largely moved in a radial direction in recording or reproducing the next layer, thus posing a problem that the time to interrupt recording or reproduction increases. The above-described problems can be resolved by enabling a reference layer to be recorded and reproduced, and recording disc management information and the like in this reference layer, and reproducing this information. Moreover, the reference layer comprises two layers having the spiral directions of the track different from each other, and the reference layer, on which a light beam is focused, is changed according to a layer to be recorded or reproduced in the recording layer.
    Type: Application
    Filed: November 30, 2010
    Publication date: September 15, 2011
    Inventors: Motoyuki SUZUKI, Tatsuya Ishitobi
  • Publication number: 20110216636
    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: Application
    Filed: May 16, 2011
    Publication date: September 8, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sung-hee Hwang, Jung-wan Ko
  • Publication number: 20110205869
    Abstract: An optical recording and reading method is provided in which the information necessary for recording and reading layers is quickly acquired to reduce the seek time during reading and recording. The optical recording and reading method is used for an optical recording medium that includes a plurality of recording and reading layers and a servo layer. Information is recorded on or read from the recording and reading layers by irradiating them with a recording and reading beam while the servo layer is irradiated with a servo beam to perform tracking control. When information is recorded on the recording and reading layers, control information necessary for subsequent recording and reading to be performed on the recording and reading layers is recorded on the servo layer 18. When the subsequent recording or reading is performed, the control information on the servo layer is consulted, and then the recording or reading is performed on the recording and reading layers.
    Type: Application
    Filed: February 22, 2011
    Publication date: August 25, 2011
    Inventors: Motohiro Inoue, Takashi Kikukawa, Atsuko Kosuda, Hideki Hirata
  • Publication number: 20110199874
    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 second light reflecting layer is larger than the thickness of the first light reflecting layer.
    Type: Application
    Filed: April 25, 2011
    Publication date: August 18, 2011
    Inventors: Koji TAKAZAWA, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera, Hideo Ando, Naomasa Nakamura
  • Publication number: 20110199873
    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 second light reflecting layer is larger than the thickness of the first light reflecting layer.
    Type: Application
    Filed: April 26, 2011
    Publication date: August 18, 2011
    Inventors: Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera, Hideo Ando, Naomasa Nakamura
  • Publication number: 20110199870
    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 second light reflecting layer is larger than the thickness of the first light reflecting layer.
    Type: Application
    Filed: April 25, 2011
    Publication date: August 18, 2011
    Inventors: Koji TAKAZAWA, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera, Hideo Ando, Naomasa Nakamura
  • Publication number: 20110199881
    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 second light reflecting layer is larger than the thickness of the first light reflecting layer.
    Type: Application
    Filed: April 26, 2011
    Publication date: August 18, 2011
    Inventors: Koji TAKAZAWA, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera, Hideo Ando, Naomasa Nakamura
  • Publication number: 20110199879
    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 second light reflecting layer is larger than the thickness of the first light reflecting layer.
    Type: Application
    Filed: April 26, 2011
    Publication date: August 18, 2011
    Inventors: Koji TAKAZAWA, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera, Hideo Ando, Naomasa Nakamura
  • Publication number: 20110199871
    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 second light reflecting layer is larger than the thickness of the first light reflecting layer.
    Type: Application
    Filed: April 21, 2011
    Publication date: August 18, 2011
    Inventors: Koji TAKAZAWA, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera, Hideo Ando, Naomasa Nakamura