Track Data Format/layout Patents (Class 369/275.3)
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Patent number: 7599273Abstract: A method of recording control information in a recording medium, such as an optical disc, including at least one recording layer is provided Velocity information and per recording velocity write strategy (write strategy parameters) is included in control information, such that standardized control information can be uniformly applied to cope with the playback of a recorded optical disc. The method includes steps of recording, per applicable recording velocity, the control information within a management area of the at least one recording layer of the optical disc; and recording at least one write strategy information per the applicable recording velocity within the control information.Type: GrantFiled: July 6, 2004Date of Patent: October 6, 2009Assignee: LG Electronics Inc.Inventors: Jin Yong Kim, Sang Woon Suh
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Patent number: 7599279Abstract: A high-density optical disc, a method for encrypting data and recording the encrypted data thereon, and a method for reproducing the encrypted data recorded thereon. Data recorded on a high-density optical disc such as a Blu-ray disc-read only memory (BD-ROM) is recorded in a discontinuous recording format as on a high-density rewritable optical disc such as a Blu-ray disc rewritable (BD-RE). Data can be encrypted and recorded using synchronous data, address unit number (AUN) information or disc radius information recorded in the high-density optical disc. An optical disc apparatus such as a BD-ROM player can maintain reproduction compatibility with the high-density rewritable optical disc such as the BD-RE. A user holding an optical disc apparatus such as a BD-RE recorder, etc. can be prevented from unlawfully copying data recorded on the high-density optical disc and reproducing the copied data.Type: GrantFiled: June 5, 2003Date of Patent: October 6, 2009Assignee: LG Electronics Inc.Inventors: Jin Yong Kim, Sang Woon Suh
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Patent number: 7599266Abstract: A multi-layered recording medium, and a method and apparatus for recording data in the recording medium are disclosed. A multi-layered recording medium, each of which includes an inner area, a data area, and an outer area, includes: first layer having at least a test area assigned to the inner area; and second layer having at least a management area assigned to the inner area, wherein the test area in the first layer is not physically located at the same location as the management area assigned to the second layer adjacent to the first layer with respect to an incident beam.Type: GrantFiled: June 30, 2006Date of Patent: October 6, 2009Assignee: LG Electronics Inc.Inventor: Sang Woon Suh
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Patent number: 7599280Abstract: In an information recording medium comprising at least a substrate, a recording layer, and a resin layer, the substrate is formed with at least a pit corresponding to a read only area 31 and a groove corresponding to a recording/reproducing area 32 without overlapping with each other. A reflectivity of the recording layer is specified to be more than 10%. The recording layer and the resin layer are continuously adhered over both the read only and recording/reproducing areas 31 and 32. The information recording medium is characterized in that both push-pull signal outputs T1 and T2, which are reproduced from the read only area 31 and the recording/reproducing area 32 respectively, are more than 0.1 and satisfy an inequality 1.5?T1/T2?0.5.Type: GrantFiled: October 20, 2007Date of Patent: October 6, 2009Assignee: Victor Company of Japan, Ltd.Inventor: Tetsuya Kondo
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Patent number: 7596074Abstract: 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: GrantFiled: October 24, 2007Date of Patent: September 29, 2009Assignee: Victor Company of Japan, LimitedInventor: Yasuhiro Ueki
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Patent number: 7596064Abstract: A method for recording data on a recording medium having one or more recording layers. The method includes reading control information including a plurality of control information units for controlling recording/reproducing of data from the recording medium. The control information unit includes a recording speed, an identifier of the recording layer, and a write strategy information depending on the recording speed, where a sequence of the information units is ordered according to the recording speed. The method further provides for recording the data on the recording layer based on the read control information unit including the identifier of the corresponding recording layer on which the data is to be recorded.Type: GrantFiled: March 22, 2007Date of Patent: September 29, 2009Assignee: LG Electronics Inc.Inventors: Jin Yong Kim, Sang Woon Suh
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Patent number: 7593311Abstract: A recording medium is applicable to information service system for receiving and transmitting information when a terminal device on the user's side accesses an administrative server, which is a server device, using a communication line such as the Internet. This recording medium (10a) comprises a lead-in region (16a), a data recording region (14a) positioned on an outer region than the lead-in region, and a lead-out region (12a) positioned on an outer region than the data-recording region. In at least any one of these regions (12a), (14a), and (16a), multiple pieces of identification information are recorded.Type: GrantFiled: June 25, 2003Date of Patent: September 22, 2009Assignees: Sony Corporation, Sony Disc & Digital Solutions Inc.Inventors: Yoichiro Sako, Etsuo Shibasaki, Yoriaki Kanada, Akiya Saito, Koichi Nakajima, Shunsuke Furukawa, Kaoru Kijima, Akiko Inoue
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Patent number: 7593312Abstract: An information signal is read from a recording medium to generate a reproduced signal. A sync detector detects a sync signal in the reproduced signal on a pattern search basis during operation in a direct mode. The sync detector sets a detection window and detects a sync signal in the reproduced signal in the detection window during operation in an inertia mode. A special pattern signal in the reproduced signal is detected and counted to generate a count result. The count result is reset in response to detection of a first special signal in the reproduced signal. A detection flag is generated in cases where a second special signal in the reproduced signal is detected when the count result denotes a last sector in a block of the reproduced signal. The sync detector changes its operation from the inertia mode to the direct mode when the detection flag is generated.Type: GrantFiled: February 16, 2006Date of Patent: September 22, 2009Assignee: Victor Company of Japan, Ltd.Inventors: Junichiro Tonami, Takayuki Ohki
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Publication number: 20090231985Abstract: First data representing user data and third data use the same error correction codes. The first data has a first error correction block structure and the third data has a second error correction block structure. That is to say, the first data and the third data have their respective error correction block structures proper for them. In particular, the recording density of the third data is made less dense than the recording density of the first data, and the number of correction codes in the first error-correction block is set at a multiple of m whereas the number of correction codes in the second error-correction block is set at n/m times the number of correction codes in the first error-correction block so that a data-piece count in the second error-correction block is also n/m times a data-piece count in the first error-correction block. As a result, it is possible to provide a good technique of recording shipping-time information onto a high-recording-density disc.Type: ApplicationFiled: September 10, 2007Publication date: September 17, 2009Applicant: Sony CorporationInventor: Susumu Senshu
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Publication number: 20090231986Abstract: An information recording apparatus (200) is provided with: a first recording device (353) for recording record information onto an information recording medium (100) in each border area, which is a unit in which the record information is recorded; and a second recording device (353) for recording a boot program into a first border area of a plurality of border areas which are formed by recording the record information, the boot program being executed by an information reproducing apparatus for reproducing the record information recorded on the information recording medium, the boot program allowing the information reproducing apparatus to recognize each of the plurality of border areas.Type: ApplicationFiled: April 24, 2006Publication date: September 17, 2009Applicant: PIONEER CORPORATIONInventor: Toshiro Tanikawa
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Publication number: 20090231968Abstract: A semiconductor recording medium stores attribute management information for managing various attribute information on a content (genre, composer, artist, album, title, etc.) for each item; and sort management information managing information on a sort order when information managed by the attribute management information is sorted by a predetermined procedure. The attribute management information contains character data indicating items to be managed and pointer information indicating link relationship between the attribute management information. The sort management information contains information on the sort order when all the entries in each of attribute management information are sorted by a predetermined procedure for each of attribute management information.Type: ApplicationFiled: August 29, 2006Publication date: September 17, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Makoto Ochi, Kazuya Fujimura, Shinji Inoue, Yasushi Nakajima, Tatsuya Suzuki
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Patent number: 7590036Abstract: An optical disc is manufactured under a uniform condition by forming grooves and lands on the entire surface of the disc. The optical disc is configured to obtain a reliable reproduction signal, and the grooves and lands are formed on a lead-in area, a user data area and a lead-out area of the optical disc. Since the same manufacturing condition can be adopted in mastering discs, the yield can be enhanced and the manufacturing cost can be reduced.Type: GrantFiled: December 19, 2007Date of Patent: September 15, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-geun Lee, In-sik Park, Du-seop Yoon
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Patent number: 7590032Abstract: A recording medium is provided, which comprises at least one recording area. The at least one recording area is composed of at least one adjustment area and at least one positional information recording area. The at least one adjustment area is an area for adjustment an access parameter for accessing the recording medium. Positional information indicating a position of the at least one adjustment area is recorded in the at least one positional information recording area.Type: GrantFiled: November 18, 2004Date of Patent: September 15, 2009Assignee: Panasonic CorporationInventors: Takahiro Sato, Hiroshi Ueda, Mamoru Shoji, Motoshi Ito
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Patent number: 7590042Abstract: There is provided a method for recording an unique ID to a read-only optical disk (1) adopting the 1-7 PP modulation technique and having provided in a plurality of predetermined positions postscript areas each having a predetermined postscript pattern formed therein. The postscript pattern takes a form of 3T (pit)-2T (land)-3T (pit) and has a length of 8T (largest code length of a modulated bit string). Modulated bit strings before and after the 3T-2T-3T postscript pattern are formed so that the pit-land-pit postscript pattern complies with the rule of the variable-length modulation even when it is replaced as a whole with a pit-only pattern. Further, the land in the middle of the pit-land-pit postscript pattern is formed from a material which will not physically change when irradiated with laser light having a reading-level one but will be melted when irradiated with laser light having a power higher than the reading-level one.Type: GrantFiled: April 8, 2005Date of Patent: September 15, 2009Assignee: Sony CorporationInventor: Naoki Ide
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Patent number: 7586832Abstract: 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: GrantFiled: October 24, 2007Date of Patent: September 8, 2009Assignee: Victor Company of Japan, LimitedInventor: Yasuhiro Ueki
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Patent number: 7586824Abstract: An optical read/write apparatus causes a read/write light beam from illuminating means to strike only one side of an optical storage medium including stacked data storage layers each of which is readable/writeable separately from the other layers. In this case, the optical read/write apparatus operates so that data is read/written from/into a second data storage layer after fully recording a recordable area of a first data storage layer. Thus, light can be shone with uniform intensity across the substantially entire recordable area of the second data storage layer without using a complex read/write system even under such conditions that the transmittance to light of the first data storage layer in the recordable area may vary depending on whether any data is recorded in the recordable area.Type: GrantFiled: February 2, 2007Date of Patent: September 8, 2009Assignee: Sharp Kabushiki KaishaInventors: Junji Hirokane, Noboru Iwata
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Patent number: 7586831Abstract: In order to help maximize the capacity of an optical storage device, and increase the efficiency of addressing, a unique addressing scheme is utilized to provide addressing for an optical storage disk. Importantly, this scheme is compatible with multilayer disks and helps to minimize the potential for errors. In the addressing scheme of the present invention, the storage media is provided with a wobbled groove, which includes addressing information for the media. More specifically, the surface of the media is divided into predetermined sections, or portions, each portion having a selected number of wobble periods. Within these wobble periods, the amplitude of one single wobble period is either reduced or eliminated. The location of this reduced or eliminated wobble signal can then be determined by the readout system of the present invention and utilized to provide addressing information.Type: GrantFiled: March 21, 2005Date of Patent: September 8, 2009Assignee: Alliance Storage Technologies, Inc.Inventors: Johannes J. Verboom, Kurt W. Getreuer
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Patent number: 7583574Abstract: A write-once recording medium preserving a data recording status of the write-once recording medium, a method of preserving the data recording status of a write-once recording medium, a medium including computer readable code for the same, and a recording and/or reproducing apparatus therefor. In the method of preserving the data recording status of a write-once recording medium, first, data is recorded on the write-once recording medium. Next, recording-status data, representing occupied areas, is produced and recorded in a temporary defect management area allocated in the write-once recording medium. Thereafter, a finalization command is received to preserve the data-recording status of the recording medium. Then, in response to the finalization command, predetermined data is recorded in a temporary defect management area to prevent further data recording on the write-once recording medium. Accordingly, the data recording status of the finalized write-once recording medium can be preserved.Type: GrantFiled: January 4, 2008Date of Patent: September 1, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-hee Hwang, Jung-wan Ko, Kyung-geun Lee
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Patent number: 7583573Abstract: An information storage medium and an apparatus for recording and/or reproducing the information storage medium are provided to control optimal recording power without an influence of an optimal power control (OPC) area in a layer upon an OPC area in a different layer. The information storage medium includes at least one information storage layer including an optimal power control area for obtaining an optical recording condition. OPC areas in adjacent information storage layers are disposed within different radiuses of the information storage medium. Accordingly, even when the information storage medium is made eccentric or has a manufacturing error, a recording property of the information storage medium is prevented from being degraded due to an influence of an OPC area in an information storage layer upon an OPC area in an adjacent information storage layer.Type: GrantFiled: July 29, 2008Date of Patent: September 1, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-geun Lee, Jung-wan Ko
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Patent number: 7583581Abstract: 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: GrantFiled: October 26, 2007Date of Patent: September 1, 2009Assignee: Victor Company of Japan, LimitedInventor: Yasuhiro Ueki
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Patent number: 7583579Abstract: An information recording medium includes a lead-in area and a data area for storing contents information. The lead-in area includes a first lead-in information area and a second lead-in information area. The first lead-in information area corresponds to a first playback mode. The second lead-in information area corresponds to a second playback mode different from the first playback mode. The first lead-in information area has a first depth and is designed for storing lead-in information related to the contents information stored in the data area. The second lead-in information area includes pre-pits having a second depth greater than the first depth. The pre-pits represent predetermined information, such as information of copyright protection, related to the contents information stored in the data area.Type: GrantFiled: January 11, 2008Date of Patent: September 1, 2009Assignee: Victor Company of Japan, Ltd.Inventor: Yasuhiro Ueki
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Patent number: 7584403Abstract: An information storage medium includes a drive zone having a plurality of physical clusters or ECC blocks. When new drive data is recorded in the drive zone, the new drive data is recorded in a physical cluster or ECC block next to the physical cluster or ECC block containing the most recently recorded drive data. In the method of recording drive data, the drive data is recorded in a physical cluster or ECC block of the drive zone. When the drive zone is updated with the new drive data, the new drive data is recorded in the physical cluster or ECC block adjacent to physical cluster or ECC block containing the most recently drive data. The drive data recording method is applicable to a new format of information storage medium.Type: GrantFiled: October 25, 2006Date of Patent: September 1, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-geun Lee, In-oik Park, Jung-wan Ko, Du-seop Yoon
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Publication number: 20090213707Abstract: A recording medium and a method and apparatus for recording data are disclosed. The recording medium includes a data area in which data is recorded, a lead-in area arranged radially inwardly of the data area, and a lead-out area arranged radially outwardly of the data area, wherein the lead-in area includes information indicating whether pre-recording has been performed with respect to a portion of the lead-in area.Type: ApplicationFiled: January 23, 2009Publication date: August 27, 2009Inventors: Sung Hoon Kim, Yong Cheol Park
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Publication number: 20090213719Abstract: An exemplary optical encoding disc includes a plurality of concentric annular tracks. Each track includes a plurality of coding units. Each coding unit includes a light converging portion and a light diverging portion. The light converging portions and the light diverging portions are arranged alternately along a circumferential direction of the optical encoding disc.Type: ApplicationFiled: August 15, 2008Publication date: August 27, 2009Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: JEN-TSORNG CHANG
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Patent number: 7580337Abstract: 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: GrantFiled: October 24, 2007Date of Patent: August 25, 2009Assignee: Victor Company of Japan, Ltd.Inventor: Yasuhiro Ueki
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Patent number: 7580342Abstract: A recording medium includes a substrate having a microscopic pattern, which includes a shape of continuous substance of approximately parallel grooves formed with a convex shaped section and a concave shaped section alternating on a surface of the substrate. A recording layer is formed on the microscopic pattern and a light transmitting layer has a thickness of 0.05 mm to 0.12 mm formed on the recording layer. The microscopic pattern satisfies a relation of P??/NA, wherein P is a pitch of the convex shaped section, ? is a wavelength of a reproducing light beam and NA is a numerical aperture of an objective lens. The microscopic pattern also includes modulated address information formed on both side walls of the convex shaped section viewed from the light transmitting layer as a wobble, both the side walls being parallel to each other, and furthermore wherein the address information is modulated by the phase-shift keying modulation system.Type: GrantFiled: October 10, 2006Date of Patent: August 25, 2009Assignee: Victor Company of Japan, LimitedInventors: Tetsuya Kondo, Akira Nishizawa
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Patent number: 7580339Abstract: An information recording medium is provided, which comprises a plurality of recording layers and a first disc information area for storing parameters relating to access to the plurality of recording layers and formats relating to the plurality of recording layers. The first disc information area is provided in a first recording layer which is one of the plurality of recording layers.Type: GrantFiled: May 22, 2008Date of Patent: August 25, 2009Assignee: Panasonic CorporationInventors: Mamoru Shoji, Takashi Ishida, Motoshi Ito, Hiroshi Ueda, Yoshikazu Yamamoto, Atsushi Nakamura
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Patent number: 7580338Abstract: 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: GrantFiled: October 26, 2007Date of Patent: August 25, 2009Assignee: Victor Company of Japan, LimitedInventor: Yasuhiro Ueki
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Patent number: 7580343Abstract: In an information recording medium comprising at least a substrate, a recording layer, and a resin layer, the substrate is formed with at least a pit corresponding to a read only area 31 and a groove corresponding to a recording/reproducing area 32 without overlapping with each other. A reflectivity of the recording layer is specified to be more than 10%. The recording layer and the resin layer are continuously adhered over both the read only and recording/reproducing areas 31 and 32. The information recording medium is characterized in that both push-pull signal outputs T1 and T2, which are reproduced from the read only area 31 and the recording/reproducing area 32 respectively, are more than 0.1 and satisfy an inequality 1.5?T1/T2?0.5.Type: GrantFiled: October 22, 2007Date of Patent: August 25, 2009Assignee: Victor Company of Japan, LimitedInventor: Tetsuya Kondo
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Publication number: 20090207721Abstract: An optical disc has a read-only system lead-in area and a recordable data area. Disc boundary information representing a boundary in a radial direction of an area on which capability of recording at a predetermined recording speed is guaranteed is recorded on the system lead-in area while being related to each tuple speed. An optical disc device, upon user's instruction of tuple-speed recording, compares the boundary information related to the instructed tuple speed with a present recording position, performs recording at the instructed tuple speed if the present recording position is on the outside of the boundary, and performs recording at a tuple speed lower than the instructed tuple speed if the present recording position is on the inside of the boundary.Type: ApplicationFiled: February 13, 2009Publication date: August 20, 2009Applicants: SANYO Electric Co., Ltd., Toshiba Corporation, NEC CorporationInventors: Morio Nakatani, Masato Fuma, Kazuo Watabe, Yutaka Kashihara, Akihito Ogawa, Yutaka Yamanaka, Tatsunori Ide, Shuichi Ohkubo
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Publication number: 20090207706Abstract: A recording medium, such as a high-density and/or read-only recording medium including a data area including at least two data sections and a linking area to link neighboring data sections, the linking area including dummy data, and to methods and apparatuses for forming, recording, and reproducing the recording medium.Type: ApplicationFiled: April 23, 2009Publication date: August 20, 2009Inventors: JIN YONG KIM, SANG WOON SUH
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Publication number: 20090207722Abstract: An optical disc apparatus searches domain information from information stored on a disc. When the domain information is thereby acquired, the existence of the domain information is presented to outside at a predetermined timing in a reproducing process of the disc. When an access execution command based on the domain information is inputted by a user in response to this presentation, the optical disc apparatus accesses an address specified by the domain information via a network.Type: ApplicationFiled: February 20, 2009Publication date: August 20, 2009Applicant: SANYO Electric Co., Ltd.Inventors: Morio Nakatani, Seiichiro Takahashi
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Patent number: 7577083Abstract: In an information recording medium comprising at least a substrate, a recording layer, and a resin layer, the substrate is formed with at least a pit corresponding to a read only area 31 and a groove corresponding to a recording/reproducing area 32 without overlapping with each other. A reflectivity of the recording layer is specified to be more than 10%. The recording layer and the resin layer are continuously adhered over both the read only and recording/reproducing areas 31 and 32. The information recording medium is characterized in that both push-pull signal outputs T1 and T2, which are reproduced from the read only area 31 and the recording/reproducing area 32 respectively, are more than 0.1 and satisfy an inequality 1.5?T1/T2?0.5.Type: GrantFiled: October 20, 2007Date of Patent: August 18, 2009Assignee: Victor Company of Japan, Ltd.Inventor: Tetsuya Kondo
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Patent number: 7577082Abstract: In an information recording medium comprising at least a substrate, a recording layer, and a resin layer, the substrate is formed with at least a pit corresponding to a read only area 31 and a groove corresponding to a recording/reproducing area 32 without overlapping with each other. A reflectivity of the recording layer is specified to be more than 10%. The recording layer and the resin layer are continuously adhered over both the read only and recording/reproducing areas 31 and 32. The information recording medium is characterized in that both push-pull signal outputs T1 and T2, which are reproduced from the read only area 31 and the recording/reproducing area 32 respectively, are more than 0.1 and satisfy an inequality 1.5?T1/T2?0.5.Type: GrantFiled: October 20, 2007Date of Patent: August 18, 2009Assignee: Victor Company of Japan, Ltd.Inventor: Tetsuya Kondo
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Patent number: 7577080Abstract: A recording medium, such as a high-density and/or read-only recording medium including a data area including at least two data sections and a linking area to link neighboring data sections, the linking area including user data and parity data, and to methods and apparatuses for forming, recording, and reproducing the recording medium.Type: GrantFiled: January 9, 2004Date of Patent: August 18, 2009Assignee: LG Electronics Inc.Inventors: Jin Yong Kim, Sang Woon Suh
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Patent number: 7577081Abstract: 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: GrantFiled: October 26, 2007Date of Patent: August 18, 2009Assignee: Victor Company of Japan, LimitedInventor: Yasuhiro Ueki
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Publication number: 20090201792Abstract: An optical disc recording device includes a recording unit configured to apply optical beams, on an optical disc on which a main-data sequence is recorded in advance by forming recording marks and spaces having lengths corresponding to the main-data sequence on a track center line on an information recording surface of the optical disc, to a desired application position that is displaced in a disc inner-outer circumferential direction by a specific distance from the track center line in a recording mark having a specific length or more or a space having the specific length or more, or in the recording mark and the space each having the specific length or more, and thus locally change a reflectance of the information recording surface, so that a sub-data sequence is recorded on the optical disc.Type: ApplicationFiled: February 5, 2009Publication date: August 13, 2009Inventors: Toshihiro FUJIKI, Seiji Kobayashi
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Patent number: 7573804Abstract: 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: GrantFiled: October 24, 2007Date of Patent: August 11, 2009Assignee: Victor Company of Japan, LimitedInventor: Yasuhiro Ueki
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Publication number: 20090196158Abstract: The present invention relates to an optical disk comprising: a face (2) carrying information that is readable by a laser while the disk is being driven in rotation, said face being defined by a flexible structure (3); a support (4) serving to stiffen the flexible structure and comprising at least one fiber layer; and an identification and/or authentication element (6) carried by the support.Type: ApplicationFiled: July 13, 2005Publication date: August 6, 2009Applicant: ARJOWIGGINS SECURITYInventors: Nathalie Vast, Pierre Doublet
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Patent number: 7570573Abstract: In an information recording medium comprising at least a substrate, a recording layer, and a resin layer, the substrate is formed with at least a pit corresponding to a read only area 31 and a groove corresponding to a recording/reproducing area 32 without overlapping with each other. A reflectivity of the recording layer is specified to be more than 10%. The recording layer and the resin layer are continuously adhered over both the read only and recording/reproducing areas 31 and 32. The information recording medium is characterized in that both push-pull signal outputs T1 and T2, which are reproduced from the read only area 31 and the recording/reproducing area 32 respectively, are more than 0.1 and satisfy an inequality 1.5?T1/T2?0.5.Type: GrantFiled: October 20, 2007Date of Patent: August 4, 2009Assignee: Victor Company of Japan, LimitedInventor: Tetsuya Kondo
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Patent number: 7570571Abstract: In an information recording medium comprising at least a substrate, a recording layer, and a resin layer, the substrate is formed with at least a pit corresponding to a read only area 31 and a groove corresponding to a recording/reproducing area 32 without overlapping with each other. A reflectivity of the recording layer is specified to be more than 10%. The recording layer and the resin layer are continuously adhered over both the read only and recording/reproducing areas 31 and 32. The information recording medium is characterized in that both push-pull signal outputs T1 and T2, which are reproduced from the read only area 31 and the recording/reproducing area 32 respectively, are more than 0.1 and satisfy an inequality 1.5?T1/T2?0.5.Type: GrantFiled: October 22, 2007Date of Patent: August 4, 2009Assignee: Victor Company of Japan, LimitedInventor: Tetsuya Kondo
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Patent number: 7570572Abstract: In an information recording medium comprising at least a substrate, a recording layer, and a resin layer, the substrate is formed with at least a pit corresponding to a read only area 31 and a groove corresponding to a recording/reproducing area 32 without overlapping with each other. A reflectivity of the recording layer is specified to be more than 10%. The recording layer and the resin layer are continuously adhered over both the read only and recording/reproducing areas 31 and 32. The information recording medium is characterized in that both push-pull signal outputs T1 and T2, which are reproduced from the read only area 31 and the recording/reproducing area 32 respectively, are more than 0.1 and satisfy an inequality 1.5?T1/T2?0.5.Type: GrantFiled: October 20, 2007Date of Patent: August 4, 2009Assignee: Victor Company of Japan, LimitedInventor: Tetsuya Kondo
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Patent number: 7570575Abstract: An information recording medium including a plurality of layers for recording or reproduction of information by irradiation of light and information for identifying a tracking error signal for determining a layer number being recorded in each of the plurality of layers. A modulation of the tracking error signal is different in each of the plurality of layers.Type: GrantFiled: March 11, 2008Date of Patent: August 4, 2009Assignee: Hitachi, Ltd.Inventors: Akemi Hirotsune, Harukazu Miyamoto, Takeshi Maeda
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Patent number: 7570574Abstract: In an information recording medium comprising at least a substrate, a recording layer, and a resin layer, the substrate is formed with at least a pit corresponding to a read only area 31 and a groove corresponding to a recording/reproducing area 32 without overlapping with each other. A reflectivity of the recording layer is specified to be more than 10%. The recording layer and the resin layer are continuously adhered over both the read only and recording/reproducing areas 31 and 32. The information recording medium is characterized in that both push-pull signal outputs T1 and T2, which are reproduced from the read only area 31 and the recording/reproducing area 32 respectively, are more than 0.1 and satisfy an inequality 1.5?T1/T2?0.5.Type: GrantFiled: October 22, 2007Date of Patent: August 4, 2009Assignee: Victor Company of Japan, LimitedInventor: Tetsuya Kondo
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Patent number: 7567500Abstract: In an information recording medium comprising at least a substrate, a recording layer, and a resin layer, the substrate is formed with at least a pit corresponding to a read only area 31 and a groove corresponding to a recording/reproducing area 32 without overlapping with each other. A reflectivity of the recording layer is specified to be more than 10%. The recording layer and the resin layer are continuously adhered over both the read only and recording/reproducing areas 31 and 32. The information recording medium is characterized in that both push-pull signal outputs T1 and T2, which are reproduced from the read only area 31 and the recording/reproducing area 32 respectively, are more than 0.1 and satisfy an inequality 1.5?T1/T2?0.5.Type: GrantFiled: October 20, 2007Date of Patent: July 28, 2009Assignee: Victor Company of Japan, LimitedInventor: Tetsuya Kondo
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Patent number: 7567492Abstract: An information recording medium includes a lead-in area and a data area for storing contents information. The lead-in area includes a first lead-in information area and a second lead-in information area. The first lead-in information area corresponds to a first playback mode. The second lead-in information area corresponds to a second playback mode different from the first playback mode. The first lead-in information area has a first depth and is designed for storing lead-in information related to the contents information stored in the data area. The second lead-in information area includes pre-pits having a second depth greater than the first depth. The pre-pits represent predetermined information, such as information of copyright protection, related to the contents information stored in the data area.Type: GrantFiled: January 11, 2008Date of Patent: July 28, 2009Assignee: Victor Company of Japan, Ltd.Inventor: Yasuhiro Ueki
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Patent number: 7568081Abstract: A data storage medium (230, 400) and associated method (500, 520), apparatus (250, 430) and application routine (110, 524) for authenticating the medium as an authentic copy. The medium (such as a prerecorded or recordable optical disc) is formatted so that a predefined relationship is established (502) between physical locations of at least first and second addressable data sectors (220) prior to recording of data to the sectors (506). The predetermined relationship will be present in an authorized copy of the medium (330) but not in an unauthorized duplicate (332), allowing an application routine to grant or deny access (532, 534) to remaining portions of the medium based on the presence or absence of the detected relationship. The predetermined relationship is further used to embed a forensic data payload to serve as a digital fingerprint on the medium.Type: GrantFiled: May 14, 2003Date of Patent: July 28, 2009Assignee: Doug Carson & Associates, Inc.Inventor: Douglas M. Carson
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Patent number: 7564760Abstract: In a recordable optical disc including at least one recording layer, writing speed information and per writing speed write strategy information are recorded within disc control information, so that standardized disc control information can be uniformly applied to data recording and reproduction. At least one disc control information is recorded within the management area in per applicable writing speed order, and at least one disc information is recorded within a same writing speed in per recording layer order.Type: GrantFiled: July 1, 2004Date of Patent: July 21, 2009Assignee: LG Electronics, Inc.Inventors: Jin Yong Kim, Sang Woon Suh
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Patent number: 7564771Abstract: An optical recording medium comprising a read-only type disc and a pre-grooved disc bonded back-to-back to the read-only type disc is provided. Content from the read-only type disc side of the optical recording medium can be reproduced through a standards-compliant optical media player. Content can be recorded by a standards-compliant optical media recorder on the pre-grooved disc side of the optical recording medium.Type: GrantFiled: July 14, 2005Date of Patent: July 21, 2009Assignee: Cinram International Inc.Inventor: Thomas I. Sweeney
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Publication number: 20090180374Abstract: An optical information recording medium contains at least an optical reflective layer, an optical recording layer, a protective layer, and an optical transparency layer formed in this order on a main surface of a substrate, and has a main-information area and a sub-information area that contains an optically readable mark. The mark is constituted by removing at least the optical reflective layer in a bar cord pattern and then forming a next layer in the order over the bar cord-patterned layer.Type: ApplicationFiled: December 11, 2008Publication date: July 16, 2009Applicant: Taiyo Yuden Co., Ltd.Inventors: Fumi Hara, Takeshi Otsu, Isao Matsuda, Shingo Katoh, Masashi Satoh, Yutaka Shibata