Pit/bubble/groove Structure Specifies Patents (Class 369/275.4)
  • Patent number: 10872271
    Abstract: Systems and methods for training image processing neural networks by synthetic photorealistic indicia-bearing images. An example method comprises: generating an initial set of images, wherein each image of the initial set of images comprises a rendering of a text string; producing an augmented set of images by processing the initial set of images to introduce, into each image of the initial set of image, at least one simulated image defect; generating a training dataset comprising a plurality of pairs of images, wherein each pair of images comprises a first image selected from the initial set of images and a second image selected from the augmented set of images; and training, using the training dataset, a convolutional neural network for image processing.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: December 22, 2020
    Assignee: ABBYY PRODUCTION LLC
    Inventors: Ivan Germanovich Zagaynov, Pavel Valeryevich Borin
  • Patent number: 10068605
    Abstract: In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P1max) or a longest space (S1max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P2max) or a longest space (S2max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: September 4, 2018
    Assignees: Sharp Kabushiki Kaisha, Memory-Tech Holdings Inc.
    Inventors: Takayuki Naka, Hirohisa Yamada, Masaki Yamamoto, Hideharu Tajima, Masahito Konishi
  • Patent number: 10043545
    Abstract: An optical disk (100) of the present invention includes (i) a medium information region (101) (a) in which type identification information is recorded by recesses and/or protrusions which are formed by a given modulation method and whose lengths are longer than a length of an optical system resolution limit of a playback device and (b) in which first address information is recorded in a first address data format and (ii) a data region (102) (a) in which content data is recorded by recesses and/or protrusions which are formed by the given modulation method and which include a recess and/or a protrusion whose length is shorter than the length of the optical system resolution limit and (b) in which second address information is recorded in a second address data format.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: August 7, 2018
    Assignees: SHARP KABUSHIKI KAISHA, MEMORY-TECH HOLDINGS INC.
    Inventors: Hirohisa Yamada, Takayuki Naka, Masaki Yamamoto, Yoshihisa Adachi, Hideharu Tajima, Masahito Konishi
  • Patent number: 10014023
    Abstract: Provided is an optical medium reproducing apparatus including: a detection unit that divides a luminous flux into a plurality of regions including a first region and a second region which are different in a position in a radial direction and/or a tangential direction, and combines a plurality of detection signals in correspondence with the amount of light that is incident to each of the plurality of regions with combination patterns which are selected to form signals of a plurality of channels; a multi-input equalizer unit that includes a plurality of equalizer units to which the signals of the plurality of channels are respectively supplied, computes outputs of the plurality of equalizer units, and outputs the resultant value as an equalization signal; and a binarization unit that performs binarization processing with respect to the equalization signal to obtain binary data.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: July 3, 2018
    Assignee: SONY CORPORATION
    Inventors: Noriaki Nishi, Kimihiro Saito, Nobuhiko Ando, Junya Shiraishi, Yutaka Tentaku
  • Patent number: 9978415
    Abstract: In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P1max) or a longest space (S1max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P2max) or a longest space (S2max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: May 22, 2018
    Assignees: SHARP KABUSHIKI KAISHA, MEMORY-TECH HOLDINGS INC.
    Inventors: Takayuki Naka, Hirohisa Yamada, Masaki Yamamoto, Hideharu Tajima, Masahito Konishi
  • Patent number: 9966098
    Abstract: Provided is an optical information recording medium including: a continuously wobbling groove formed in advance by a CAV or a zone CAV. Information is allowed to be recorded on the groove and a land adjacent to the groove, address information is recorded by modulating the wobble, the address information includes a sync pattern indicating a position of the address information and address data, and the sync pattern includes a plurality of first wobble patterns and a second wobble pattern between the first wobble patterns, and at least part of intervals of the first wobble patterns are set to unequal intervals.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: May 8, 2018
    Assignee: SONY CORPORATION
    Inventors: Toshihiro Horigome, Satoru Higashino
  • Patent number: 9859463
    Abstract: An optoelectronic semiconductor device has a semiconductor body including a semiconductor layer sequence with an active region that generates radiation, a semiconductor layer and a further semiconductor layer, wherein the active region is arranged between the semiconductor layer and the further semiconductor layer, a current spreading layer is arranged on a radiation exit face of the semiconductor body, the current spreading layer connects electrically conductively with a contact structure for external electrical contacting of the semiconductor layer, in a plan view of the semiconductor device the current spreading layer adjoins the semiconductor layer in a connection region, and the current spreading layer includes a patterning with a plurality of recesses through which radiation exits the semiconductor device during operation.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: January 2, 2018
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Korbinian Perzlmaier, Fabian Kopp, Christian Eichinger, Björn Muermann
  • Patent number: 9697863
    Abstract: An optical disk (100) of the present invention includes (i) a medium information region (101) (a) in which type identification information is recorded by recesses and/or protrusions which are formed by a given modulation method and whose lengths are longer than a length of an optical system resolution limit of a playback device and (b) in which first address information is recorded in a first address data format and (ii) a data region (102) (a) in which content data is recorded by recesses and/or protrusions which are formed by the given modulation method and which include a recess and/or a protrusion whose length is shorter than the length of the optical system resolution limit and (b) in which second address information is recorded in a second address data format.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: July 4, 2017
    Assignees: Sharp Kabushiki Kaisha, Memory-Tech Holdings Inc.
    Inventors: Hirohisa Yamada, Takayuki Naka, Masaki Yamamoto, Yoshihisa Adachi, Hideharu Tajima, Masahito Konishi
  • Patent number: 9633688
    Abstract: A reproducing device (100) includes (i) an optical pickup (6) for irradiating, with reproduction light, an optical disk (1) which is a super-resolution medium, (ii) an RF signal processing circuit (9) for converting, into a reproduction signal, light which reflected off optical disk (1), (iii) an i-MLSE detecting section (141) for evaluating quality of the reproduction signal, and (iv) a spherical aberration correcting section (142) for correcting a spherical aberration by using a result of evaluation of the quality of the reproduction signal.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: April 25, 2017
    Assignees: SHARP KABUSHIKI KAISHA, MEMORY-TECH HOLDINGS INC.
    Inventors: Hideharu Tajima, Masaki Yamamoto, Hirohisa Yamada, Takayuki Naka, Masahito Konishi
  • Patent number: 9608797
    Abstract: An envelope extracting apparatus includes: a clock extracting device arranged to extract a clock signal of a receiving modulation signal according to a first biasing voltage; and an edge detecting device arranged to generate a detecting signal to indicate an envelope edge of the receiving modulation signal according to a delayed clock signal of the clock signal and a second biasing voltage; wherein the second biasing voltage or a delay time of the clock signal is adjustable.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: March 28, 2017
    Assignee: MediaTek Singapore Pte. Ltd.
    Inventors: Tieng Ying Choke, Jun-Wei Lin
  • Patent number: 9466326
    Abstract: A holographic storage disk includes a reflective layer, a storage layer, and quarter-wave plate. A storage layer is disposed on the reflective layer and includes a reflection-structure layer and photosensitive units. The reflection-structure layer has cavities, in which the reflection-structure layer is grid-shaped. The cavities penetrate the reflection-structure layer. The photosensitive units are disposed in the cavities. The quarter-wave plate is disposed between the reflective layer and the photosensitive units.
    Type: Grant
    Filed: January 31, 2016
    Date of Patent: October 11, 2016
    Assignee: National Central University
    Inventors: Yeh-Wei Yu, Ching-Cherng Sun
  • Patent number: 9412408
    Abstract: In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P1max) or a longest space (S1max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P2max) or a longest space (S2max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: August 9, 2016
    Assignees: Sharp Kabushiki Kaisha, MEMORY-TECH HOLDINGS INC.
    Inventors: Takayuki Naka, Hirohisa Yamada, Masaki Yamamoto, Hideharu Tajima, Masahito Konishi
  • Patent number: 9401172
    Abstract: An optical disc medium includes a land and a groove at which information can be recorded. A predetermined number of address information units which record address information of the land or groove are provided in a circumferential direction of the optical disc medium. The address information unit of the land includes three or more address recording areas capable of recording address information. The address information is recorded on one area selected from among the three or more address recording areas. The address information unit of the land has address information which is recorded, in the same modulation, on the side of the inner adjacent groove and on the side of the outer adjacent groove. The one area to be selected from among the three or more address recording areas for recording the address information of the land is different among three address information units adjacently arranged in a radial direction.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: July 26, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Junichi Minamino, Harumitsu Miyashita, Kohei Nakata
  • Patent number: 9313462
    Abstract: A method for detecting the position of a target object in the environment of a host vehicle. The method may include receiving a first position of the target object as detected by an object position sensor which emits waves and receives the waves that are reflected back by the target object, and receiving an image containing the target object as detected by an image sensor. The method may also include projecting the first position on the image, and refining the first position by computing a second refined position of the target object on the basis of a symmetry search within the image.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: April 12, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Nils Einecke, Sven Rebhan, Morimichi Nishigaki
  • Patent number: 9263085
    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: Grant
    Filed: November 22, 2011
    Date of Patent: February 16, 2016
    Assignee: SONY DADC Austria AG
    Inventors: Markus Spitzlinger, Andreas Winter, Walter Hinterhoelzl, Peter Eisenmann, Klaus Holzapfel, Dominik Engel, Juergen Gruenberger
  • Patent number: 9056422
    Abstract: In exemplary implementations of this invention, a manufactured physical object includes surface features that encode information according to a code. Each respective surface feature consists of a bump on, or recess in, a surface of the object. Each respective surface feature by itself, regardless of any state of any other surface feature, encodes a sequence of multiple bits. The sequence is determined, at least in part, by a discrete elevation of the respective surface feature. At least three different discrete elevations of surface features are significant in the code. Also, one or more other parameters of the surface features may be significant in the code, such as discrete rotational orientation, discrete overall shape, discrete color, or presence or absence of the feature.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: June 16, 2015
    Assignee: Massachusetts Institute of Technology
    Inventors: Travis Rich, Andrew Lippman
  • Patent number: 9025426
    Abstract: An optical disc having a region with pre-recorded data and a recordable region, a method of fabricating the disc, a stamper for forming a disc master, and a recording device for use with the disc are disclosed. Data recorded in the recordable region may be used for activation of the disc, providing unique identification or enhancing program content on the disc.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: May 5, 2015
    Assignee: Thomson Licensing
    Inventors: John Matthew Town, Alan Bruce Hamersley, Holger Hofmann
  • Patent number: 9019807
    Abstract: An optical disc having a region with pre-recorded data and a recordable region, a method of fabricating the disc, a stamper for forming a disc master, and a recording device for use with the disc are disclosed. Data recorded in the recordable region may be used for activation of the disc, providing unique identification or enhancing program content on the disc.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: April 28, 2015
    Assignee: Thomson Licensing
    Inventors: John Matthew Town, Alan Bruce Hamersley, Holger Hofmann
  • Patent number: 9007884
    Abstract: The present technology relates to an optical recording medium for realizing an optical recording medium capable of high-capacity recording. A groove and a land are formed, the groove being concave and the land being convex when seen from a side of a laser light incident surface, both of the groove and the land being recording tracks where recording or reproduction of information is performed. According to this recording layer, a pitch between the groove and the land that are adjacent recording tracks is within a range of 250 nm to 200 nm. Moreover, recording or reproduction of information is performed with respect to the recording tracks by irradiation of laser light whose wavelength is 400 nm to 415 nm by an optical system whose NA is 0.85±0.1.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: April 14, 2015
    Assignee: Sony Corporation
    Inventors: Kensaku Takahashi, Takeshi Miki, Jun Nakano
  • Patent number: 8982682
    Abstract: An information storage device has small compartments for storing information in a solid body and can be used as a memory medium. The solid body can have at least one pair of parallel planar portions on its surface. The information is divided into bits and stored in discrete minute areas that are distributed three-dimensionally inside the memory medium. The data can be converted into a digital format for storage to regulate the number of ‘1s’ recorded in a direction of the memory medium.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: March 17, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Takao Watanabe, Toshimichi Shintani
  • Patent number: 8976640
    Abstract: An information recording medium includes a plurality of wobbled tracks, in which a phase mismatch range of an adjacent wobble is a portion of a range of one track.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: March 10, 2015
    Assignee: Sony Corporation
    Inventors: Yuuichi Suzuki, Kensaku Takahashi, Nobuhiko Ando, Tetsuya Inoue, Yutaka Tentaku, Hiroaki Nakagawa
  • Publication number: 20150055445
    Abstract: An optical information recording medium has a first information recording layer (20) and a second information recording layer (40) each of which includes (i) a group of pre-pits (31, 51) constituting marks (32, 52) and spaces (33, 53) and (ii) a super-resolution film (23, 43), the marks (32, 52) and the spaces (33, 53) having different lengths, an average length of a smallest mark that is smallest in length and a smallest space that is smallest in length being less than or equal to a resolution limit of a reproduction optical system for reproducing information recorded on the first information recording layer (20) and the second information recording layer (40), the group of pre-pits (31, 51) being formed so that a push-pull signal for the reproduction optical system to reproduce the information recorded by the group of pre-pits is negative in polarity. This provides an inexpensive and high-capacity multilayer optical information recording medium based on a super-resolution technology.
    Type: Application
    Filed: November 5, 2014
    Publication date: February 26, 2015
    Inventors: Hideharu TAJIMA, Go MORI, Yasuhiro HARADA, Masaki YAMAMOTO, Hirohisa YAMADA, Masahito KONISHI
  • Patent number: 8958277
    Abstract: An optical disc device and information recording/reading method for an optical disc in which a recording layer is formed through volume recording by aligning recording tracks, which hold information, in a homogenous recording region that does not internally have a layer defining a recording position. The information recording method includes a step in which a first recording layer forming a complex recording layer is formed by forming a recording track while recording information by focusing a main beam at a predetermined depth position in the recording region, and a step in which a second recording layer forming the complex recording layer is formed by forming a recording track while recording information by focusing the main beam at a depth position that is separated from the first recording layer in a depth direction by a depth offset greater than ? of a wavelength of the main beam.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: February 17, 2015
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Atsushi Kikugawa, Tatsuro Ide
  • Publication number: 20150043322
    Abstract: The reliability of a super-resolution optical information recording medium whose capacity can be increased is increased. On an optical information recording medium (11) according to the present invention, a content is recorded as a pit group formed such that an average length Tm [nm] of a minimum mark length and a minimum space length becomes shorter than an optical system resolution limit, and reading speed information designating a reading speed in a range from 2×(4.92×Tm/149) [m/s] to less than (10000/60)×2×?×(24/1000) [m/s] is recorded as a reading speed for reproducing the content.
    Type: Application
    Filed: December 7, 2012
    Publication date: February 12, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hideharu Tajima, Atsushi Etoh, Go Mori, Masaki Yamamoto, Tetsuya Hayashi, Toshihiko Sakai, Hirohisa Yamada, Takayuki Naka
  • Patent number: 8934325
    Abstract: An information recording medium is provided with an information track formed thereon in a shape of concentric circles or in a spiral shape, wherein a continuously-wobbling groove in which information is recorded is formed in advance, the information is delimited by a predetermined number of wobble sections, a sync mark is placed in a plurality of wobble sections in the vicinity of a delimiter of the predetermined number of wobble sections, and the sync mark is spaced apart from data other than the sync mark at a distance.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: January 13, 2015
    Assignee: Sony Corporation
    Inventors: Satoru Higashino, Toshihiro Horigome
  • Patent number: 8929182
    Abstract: A disc encoding system encodes a plurality of optical discs with identical data on a first portion and variable data on a second portion of each of the plurality of optical discs. A hybrid disc can include a first and a second portion. The hybrid disc enables encoding the identical data on the first portion using a disc pressing process in which a master disc is used to define a pressing pattern. The variable data can be written on the second portion using a disc burning process in which at least one laser is used to modify a reflective property of the hybrid optical disc material, such that at least some of the optical discs vary in content. In an embodiment, the identical data includes one of movies, games, software, or music and the variable data includes one of digital fingerprints, logo data, or advertisement content. The disc encoding system can use location identifiers to identify location in the second portion of the hybrid optical disc for burning varying data.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: January 6, 2015
    Assignee: Amazon Technologies, Inc.
    Inventor: Benjamin Martin Schwartz
  • Patent number: 8929190
    Abstract: An optical information recording medium of a CAV or a zone CAV, in which a groove wobbling continuously is formed in advance so as to record information to a groove and a land abutting the groove, the groove alternately has a first wobble position in which a wobble fundamental wave form has been modulated by groove address information, and a second wobble position of the wobble fundamental wave form, and in grooves of both sides by which the land is interposed, the first wobble position and the second wobble position are different from each other in position.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: January 6, 2015
    Assignee: Sony Corporation
    Inventors: Kimihiro Saito, Toshihiro Horigome
  • Patent number: 8923103
    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: Grant
    Filed: June 7, 2013
    Date of Patent: December 30, 2014
    Assignee: Sony Corporation
    Inventors: Hideki Ando, Toshihiro Horigome
  • Patent number: 8913476
    Abstract: An optical information recording medium has a first information recording layer (20) and a second information recording layer (40) each of which includes (i) a group of pre-pits (31, 51) constituting marks (32, 52) and spaces (33, 53) and (ii) a super-resolution film (23, 43), the marks (32, 52) and the spaces (33, 53) having different lengths, an average length of a smallest mark that is smallest in length and a smallest space that is smallest in length being less than or equal to a resolution limit of a reproduction optical system for reproducing information recorded on the first information recording layer (20) and the second information recording layer (40), the group of pre-pits (31, 51) being formed so that a push-pull signal for the reproduction optical system to reproduce the information recorded by the group of pre-pits is negative in polarity. This provides an inexpensive and high-capacity multilayer optical information recording medium based on a super-resolution technology.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: December 16, 2014
    Assignees: Sharp Kabushiki Kaisha, Memory-Tech Corporation
    Inventors: Hideharu Tajima, Go Mori, Yasuhiro Harada, Masaki Yamamoto, Hirohisa Yamada, Masahito Konishi
  • Publication number: 20140362675
    Abstract: There is provided a recording medium including: simple tracks each configured of arranged pits or arranged marks; and grooved tracks each configured of pits or marks and grooves, the grooves being inserted between the pits or between the marks. The simple tracks and the grooved tracks are arranged alternately in a radial direction at a track pitch of 0.27 micrometers or smaller.
    Type: Application
    Filed: December 12, 2012
    Publication date: December 11, 2014
    Applicants: Sony Corporation, c/o Sony DADC Corporation
    Inventors: Kensaku Takahashi, Akiya Saito, Eiki Yamashita
  • Patent number: 8908488
    Abstract: The present technology relates to an optical recording medium for realizing an optical recording medium capable of high-capacity recording. A groove and a land are formed, the groove being concave and the land being convex when seen from a side of a laser light incident surface, both of the groove and the land being recording tracks where recording or reproduction of information is performed. According to this recording layer, a pitch between the groove and the land that are adjacent recording tracks is within a range of 250 nm to 200 nm. Moreover, recording or reproduction of information is performed with respect to the recording tracks by irradiation of laser light whose wavelength is 400 nm to 415 nm by an optical system whose NA is 0.85±0.1.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: December 9, 2014
    Assignee: Sony Corporation
    Inventors: Kensaku Takahashi, Takeshi Miki, Jun Nakano
  • Patent number: 8897107
    Abstract: There is provided a playback device including a light source, an objective lens that radiates light emitted onto an optical recording medium, and onto which is incident reflected light obtained from a recording surface of the optical recording medium, a condenser lens that condenses the reflected light, a photodetecting section configured to, provided that a confocal position is a focal position of the condenser lens, ? is a wavelength of light radiated onto the optical recording medium, and NA is a numerical aperture of the objective lens, extract and detect light within a range of a diameter less than 1.5?/NA centered on an optical axis at the confocal position, and a phase difference imparting section that imparts a designated phase difference between a reflected light component from a readout track and a reflected light component from a track neighboring the readout track.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: November 25, 2014
    Assignee: Sony Corporation
    Inventor: Kimihiro Saito
  • Patent number: 8891343
    Abstract: The present techniques present methods and systems for increasing a data reading rate on optical data disks using a single reading head. The methods take advantage of the difference between a mean focal distance (MFD), or minimum spacing that the detector can distinguish between bits, and the minimum separation of bits in a single track to increase the reading speed. As the bits may be more closely spaced across adjacent tracks or layers, these techniques may be used to increase the reading speed of the disk. Specifically, the data symbols that make up a single bit-stream may be stored in a pattern horizontally across adjacent tracks, or vertically across adjacent layers. Accordingly, the focal point of the detector is scanned across the disk in the same pattern to read the individual data symbols.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: November 18, 2014
    Assignee: General Electric Corporation
    Inventors: John Anderson Fergus Ross, Kenneth Brakeley Welles, John Erik Hershey, Brian Lee Lawrence, Xiaolei Shi, Victor Petrovich Ostroverkhov
  • Patent number: 8879371
    Abstract: A recording medium is provided with: a guide layer on which a guide track or tracks are formed; and a plurality of recording layers, wherein a same mark group is formed in a same rotational phase position of each of a plurality of guide tracks which are included in a beam spot of guide laser light, the mark group including a pair of record marks which are shifted by a predetermined distance toward a right side and a left side, respectively, from a track center.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: November 4, 2014
    Assignees: Pioneer Corporation, Memory-Tech Holdings Inc.
    Inventors: Masayoshi Yoshida, Takuya Shiroto, Hideki Kobayashi, Masakazu Ogasawara, Takao Tagiri, Makoto Suzuki
  • Publication number: 20140321256
    Abstract: An optical information recording medium has a first information recording layer (20) and a second information recording layer (40) each of which includes (i) a group of pre-pits (31, 51) constituting marks (32, 52) and spaces (33, 53) and (ii) a super-resolution film (23, 43), the marks (32, 52) and the spaces (33, 53) having different lengths, an average length of a smallest mark that is smallest in length and a smallest space that is smallest in length being less than or equal to a resolution limit of a reproduction optical system for reproducing information recorded on the first information recording layer (20) and the second information recording layer (40), the group of pre-pits (31, 51) being formed so that a push-pull signal for the reproduction optical system to reproduce the information recorded by the group of pre-pits is negative in polarity. This provides an inexpensive and high-capacity multilayer optical information recording medium based on a super-resolution technology.
    Type: Application
    Filed: July 11, 2014
    Publication date: October 30, 2014
    Inventors: Hideharu TAJIMA, Go MORI, Yasuhiro HARADA, Masaki YAMAMOTO, Hirohisa YAMADA, Masahito KONISHI
  • Patent number: 8867328
    Abstract: An optical recording medium includes: a medium information region on which medium identification information is recorded; a content region on which content information is recorded; and a blank region provided between the medium information region and the content region and in which at least two tracks are provided so as to connect a train of prepits in the medium information region and a train of prepits in the content region. No information is recorded on the blank region. Thus, an optical recording medium is provided in which a region on which medium identification information is recorded and a region on which content information is recorded are different in track pitch and in which a reproduction error hardly occurs when reproduction shifts from the region on which the medium identification information is recorded to the region on which the content information is recorded.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: October 21, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihiko Sakai, Hirohisa Yamada, Masaki Yamamoto, Yasuhiro Harada, Go Mori, Hideharu Tajima, Nobuyuki Takamori
  • Publication number: 20140301179
    Abstract: In exemplary implementations of this invention, a manufactured physical object includes surface features that encode information according to a code. Each respective surface feature consists of a bump on, or recess in, a surface of the object. Each respective surface feature by itself, regardless of any state of any other surface feature, encodes a sequence of multiple bits. The sequence is determined, at least in part, by a discrete elevation of the respective surface feature. At least three different discrete elevations of surface features are significant in the code. Also, one or more other parameters of the surface features may be significant in the code, such as discrete rotational orientation, discrete overall shape, discrete color, or presence or absence of the feature.
    Type: Application
    Filed: April 3, 2014
    Publication date: October 9, 2014
    Inventors: Travis Rich, Andrew Lippman
  • Patent number: 8837265
    Abstract: An optical information reproduction device includes a light source (14) configured to emit reproduction light, a plasmon resonance element (9) including a resonance section (22) arranged adjacent to a recording region (4) of a recording layer (2), the resonance section (22) causing plasmon resonance between the recording region (4) and the resonance section (22), a photodetector (17a) configured to detect reflected light or transmitted light from the plasmon resonance element (9) on which the reproduction light is irradiated, and a reproduction unit (24) configured to determine, on the basis of a detection signal from the photodetector (17a), whether the recording region (4) is in a recorded state or an unrecorded state, and reproduce information recorded in the recording region (4).
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: September 16, 2014
    Assignee: Panasonic Corporation
    Inventors: Teruhiro Shiono, Yoshiharu Kobayashi
  • Patent number: 8830807
    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: Grant
    Filed: November 10, 2010
    Date of Patent: September 9, 2014
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Masakazu Ikeda, Koichiro Nishimura, Yutaka Nagai
  • Patent number: 8817587
    Abstract: An optical information recording medium has a first information recording layer (20) and a second information recording layer (40) each of which includes (i) a group of pre-pits (31, 51) constituting marks (32, 52) and spaces (33, 53) and (ii) a super-resolution film (23, 43), the marks (32, 52) and the spaces (33, 53) having different lengths, an average length of a smallest mark that is smallest in length and a smallest space that is smallest in length being less than or equal to a resolution limit of a reproduction optical system for reproducing information recorded on the first information recording layer (20) and the second information recording layer (40), the group of pre-pits (31, 51) being formed so that a push-pull signal for the reproduction optical system to reproduce the information recorded by the group of pre-pits is negative in polarity. This provides an inexpensive and high-capacity multilayer optical information recording medium based on a super-resolution technology.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: August 26, 2014
    Assignees: Sharp Kabushiki Kaisha, Memory-Tech Corporation
    Inventors: Hideharu Tajima, Go Mori, Yasuhiro Harada, Masaki Yamamoto, Hirohisa Yamada, Masahito Konishi
  • Patent number: 8804476
    Abstract: In the land-groove method, wobble interference is reduced. STW modulation is used as wobble modulation for a part where wobble interference can occur, for example, a part where the configurations of both side walls of the groove are not the same and groove width modulation is unavoidable. Thereby, the amplitude of the groove width modulation can be suppressed to a quarter of that when BPSK modulation is used.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: August 12, 2014
    Assignees: Hitachi Consumer Electronics Co., Ltd., Hitachi-LG Data Storage, Inc.
    Inventor: Atsushi Kikugawa
  • Patent number: 8792321
    Abstract: An optical disc having a region with pre-recorded data and a recordable region, a method of fabricating the disc, a stamper for forming a disc master, and a recording device for use with the disc are disclosed. Data recorded in the recordable region may be used for activation of the disc, providing unique identification or enhancing program content on the disc.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: July 29, 2014
    Assignee: Thomson Licensing
    Inventors: John Matthew Town, Alan Bruce Hamersley, Holger Hofmann
  • Patent number: 8780683
    Abstract: An optical disc (120) has a first mark (131) disposed at the center of a track, a second mark (132) disposed away from the center of the track in a tracking direction thereof by a distance b1, and disposed away from the first mark (131) in the direction along the track by a distance L, and a third mark (133) disposed away from the center of the track in the tracking direction opposite to that of the second mark (132) by a distance b2, and disposed away from the first mark (131) in the direction along the track by a distance L2. The second and third marks (132) and (133) generate scattered light depending on the distance between a scattering medium (103) and each of the marks by irradiating the scattering medium (103) in an optical information apparatus with light. The distances b1 and b2 are smaller than 50 nm.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: July 15, 2014
    Assignee: Panasonic Corporation
    Inventors: Kousei Sano, Tatsuya Takaoka, Hidenori Wada, Keiichi Matsuzaki
  • Publication number: 20140169149
    Abstract: An optical information recording medium has a first information recording layer (20) and a second information recording layer (40) each of which includes (i) a group of pre-pits (31, 51) constituting marks (32, 52) and spaces (33, 53) and (ii) a super-resolution film (23, 43), the marks (32, 52) and the spaces (33, 53) having different lengths, an average length of a smallest mark that is smallest in length and a smallest space that is smallest in length being less than or equal to a resolution limit of a reproduction optical system for reproducing information recorded on the first information recording layer (20) and the second information recording layer (40), the group of pre-pits (31, 51) being formed so that a push-pull signal for the reproduction optical system to reproduce the information recorded by the group of pre-pits is negative in polarity. This provides an inexpensive and high-capacity multilayer optical information recording medium based on a super-resolution technology.
    Type: Application
    Filed: February 19, 2014
    Publication date: June 19, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hideharu TAJIMA, Go MORI, Yasuhiro HARADA, Masaki YAMAMOTO, Hirohisa YAMADA, Masahito KONISHI
  • Patent number: 8755261
    Abstract: An optical information recording medium operated by CAV or zone CAV, wherein a groove that wobbles is formed in advance, and information is recorded in the groove and a land adjacent to the groove, an address is recorded by a wobble signal of the groove, the groove is alternately provided with a first section recording an address N by the wobble signal, and a second section recording an address (N?1) or (N+1) by the wobble signal, in two groove tracks sandwiching a land track, the first section of one of the groove tracks matches the second section of the other of the groove tracks, and an address of the groove is read from the first section, and an address of the land is read from the first and the second sections located on both sides of the land track, and recording a same address.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: June 17, 2014
    Assignee: Sony Corporation
    Inventor: Shoei Kobayashi
  • Patent number: 8755262
    Abstract: 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: Grant
    Filed: December 18, 2012
    Date of Patent: June 17, 2014
    Assignee: JVC Kenwood Corporation
    Inventor: Yasuhiro Ueki
  • Patent number: 8724972
    Abstract: On a host computer (300), writing software for controlling recording and image forming operations of an optical disc recording apparatus (10) is installed. When the writing software is activated, the host computer (300) requests the user to input various settings relating to record information and image information before giving instructions for starting recording and those for starting image formation to the optical disc recording apparatus (10), and, in accordance with various settings which are input in response to the request, determines the recording and image forming operations of the optical disc recording apparatus (10).
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: May 13, 2014
    Assignee: Yamaha Corporation
    Inventor: Shin Nishizawa
  • Publication number: 20140126339
    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: January 14, 2014
    Publication date: May 8, 2014
    Applicant: JVC Kenwood Corporation
    Inventor: Yasuhiro Ueki
  • Patent number: 8717858
    Abstract: An embodiment of the invention, to provide a recording method and a storage medium for BCA data with high reliability for a storage medium and a method for reproducing BCA data from the storage medium, and an information recording apparatus and an information reproducing apparatus. In a conventional optical disk, low reliability data is recorded in a data area of BCA. Thus, the thickness of a film material for use in a recording layer oriented to BCA data or close to the inner periphery of the storage medium in the vicinity thereof is formed in uniform thickness by using a substrate of the storage medium, the substrate being formed by being suctioned by means of adsorbing mechanisms formed in an arc shape so as to integrated two of the adsorbing mechanisms to be adjacent to each other.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: May 6, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koji Takazawa, Seiji Morita, Yasuaki Ootera, Hideo Ando, Naoki Morishita, Kazuyo Umezawa
  • Patent number: RE45292
    Abstract: An optical disk structure and optical disk recorder which enables data to be rewritten onto the recording layer of the optical disk. A clock reference structure is permanently formed along servo tracks of the optical disk. An optical transducer is coupled to the clock reference structure and generates a clock reference signal simultaneously with writing new data onto the recording layer of the optical disk. The data is written as data marks along the servo tracks. Each of the data marks includes edges. The edges of the data marks are recorded in synchronization with a write clock. The write clock is phase-locked with the clock reference signal. Therefore, the edges of the data marks are aligned with the clock reference structure with sub-bit accuracy. Standard DVD-ROM disk readers are not able to detect the high spatial frequency of the clock reference structure.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: December 16, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daniel Y. Abramovitch, David K. Towner