Erasable, Reversible Or Re-recordable Patents (Class 369/275.2)
  • Patent number: 10003019
    Abstract: A method for manufacturing a semiconductor device may include the following steps: preparing a substrate; preparing a first insulating layer on the substrate; preparing an electrode in the first insulating layer; preparing a second insulating layer on the first insulating layer; removing (e.g., using a dry etching process or a wet etching process) a portion of the second insulating layer to form a hole that at least partially exposes the electrode; providing a phase change material layer that may cover the electrode; and removing (e.g., using a sputtering process such as an argon sputtering process), a portion of the phase change material layer positioned inside the hole to form a phase change member that may expose a first portion of (a top side of) the electrode and may directly contact a second portion of (the top side of) the electrode.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: June 19, 2018
    Assignee: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (SHANGHAI) CORPORATION
    Inventors: Jia Xu, Jiadong Ren
  • Patent number: 9871021
    Abstract: Disclosed is a data storage device including a controller and a multi-stack chip package, and a method of operating a data storage device. The multi-stack chip package includes a first semiconductor chip arranged on a package substrate, a second semiconductor chip arranged on the first semiconductor chip, and a third semiconductor chip is arranged between the first and second semiconductor chips. The controller can control the first to third semiconductor chips by using a feature parameter measured from each semiconductor chip and a target value that may be originally designed by a memory vendor.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: January 16, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-seop Shim, Jaehong Kim
  • Patent number: 9703648
    Abstract: Systems and methods that make use of logical partitions of a second tier of disk storage at a disaster recovery (DR) site remote from a production site as part of a DR setup to advantageously reduce disruption to production site data production operations during DR procedures while providing for the substantially immediate recall or retrieval of data previously migrated to the remote second tier of disk storage.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: July 11, 2017
    Assignee: Oracle International Corporation
    Inventors: Roland N. Gorrell, Frank Bochula, Thomas R. Dawdy, Jeff Johnson, Vinnie Byrne
  • Patent number: 9658787
    Abstract: Methods for protecting data on an integrated circuit including a memory are described. One method includes storing protection codes on the integrated circuit. Each protection code has a first value indicating a protected state and a second value indicating an unprotected state for a corresponding sector in a plurality of sectors of the memory. The method includes storing protection mask codes on the integrated circuit. Each mask code has a first value indicating a masked state or a second value indicating an unmasked state for a corresponding sector in the plurality of sectors. The method includes blocking modification in a particular sector of the memory using circuitry on the integrated circuit when the protection code for the particular sector has the first value and the mask code for the particular sector has the second value, else allowing modification in the particular sector.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: May 23, 2017
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Chun-Hsiung Hung, Kuen-Long Chang, Ken-Hui Chen, Su-Chueh Lo
  • Patent number: 9519222
    Abstract: The present invention relates to a dynamic optical head layer in an optical lithography system forming patterns on a substrate, the dynamic optical head layer being detachably mounted on the substrate, and the dynamic optical head layer includes a first dielectric layer formed on a top portion thereof, a second dielectric layer formed on a bottom portion thereof, and an dynamic nano aperture layer formed between the first dielectric layer and the second dielectric layer, wherein the dynamic nano aperture layer is made of a material having optical anisotropy, and the first dielectric layer and the second dielectric layer are made of oxide-based materials, nitride-based materials, and carbide-based materials.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: December 13, 2016
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION YONSEI UNIVERSITY
    Inventors: Shinill Kang, Jungjin Han, Eikhyun Cho, Younggeol Cho, Se-Young Choi
  • Patent number: 9498124
    Abstract: An ophthalmic lens assembly comprising an electronic system with a controller configured to implement a blink detection algorithm is described herein. The electronic system can also include one or more power sources, circuitry, one or more sensors, clock generation circuitry, control algorithms, and lens driver circuitry. The algorithm can be used to sample, at a predetermined rate, light incident on an eye of an individual and at least temporarily save collected samples, determine when an eyelid is open or closed, determine a time period and pulse width of the blinks from the collected samples, calculate a number of blinks and the duration of the blinks in a given time period, and compare the number of blinks, the durations of the blinks in the given time period, and the time between blinks in the given time period to a stored set of samples to determine blinking patterns.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: November 22, 2016
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Randall Braxton Pugh, Adam Toner, Scott Robert Humphreys, Daniel B. Otts, William Chester Neeley
  • Patent number: 9406326
    Abstract: A method including determining a first frequency for (i) a first track in a servo layer of a storage medium, or (ii) a first sector in the servo layer. The servo layer is dedicated to storing servo information. The method further includes: obtaining first address information addressing the first track or the first sector; modulating the first address information according to the first frequency; and storing the modulated first address information in the servo layer. Subsequent to the storing of the modulated first address information, the servo information includes the modulated first address information.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: August 2, 2016
    Assignee: Marvell International Ltd.
    Inventors: Song Hua Zhang, Moulay Rachid Elidrissi, Kheong Sann Chan
  • Patent number: 9229330
    Abstract: A method of performing nanolithography is disclosed, comprising the use of a system having a plasmonic writing head that enables super-resolution exposures of a material. The super-resolution exposures are carried out using light directed onto a material using plasmonic structures, and in particular using plasmonic structures having specially designed super-resolution apertures, of which the “bow-tie” and “C-aperture” are examples. These specially designed apertures create small but bright images in the near-field transmission pattern. In one embodiment, a writing head comprising an array of these apertures is held in close proximity to a lithography material. A data processing system is provided to re-interpret the data to be patterned into a set of modulation signals used to drive the multiple individual channels and the multiple exposures. A detector system using light of a second wavelength to monitor the exposures is also provided.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: January 5, 2016
    Inventors: Franklin Mark Schellenberg, Keith Edward Bennett
  • Patent number: 9128380
    Abstract: A method of performing nanopatterning is disclosed, comprising the use of a system comprising a plasmonic writing head that enables super-resolution exposures. The super-resolution exposures are carried out using light directed onto a data recording medium using plasmonic structures, and in particular using plasmonic structures having specially designed super-resolution apertures, of which the “bow-tie” and “C-aperture” are examples. These specially designed apertures create small but bright images in the near-field transmission pattern. In one embodiment, a writing head comprising an array of these apertures is held in close proximity to a data recording medium. A data processing system is provided to re-interpret the data to be patterned into a set of modulation signals used to drive the multiple individual channels and the multiple exposures.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: September 8, 2015
    Inventors: Franklin Mark Schellenberg, Keith Edward Bennett
  • Patent number: 9123360
    Abstract: The present invention relates to an oxide sputtering target. By using the oxide sputtering target for formation of a protective film for an optical recording medium, a film, which has high storage stability and breakage resistance due to flexibility, can be deposited. Also, it can be utilized for direct-current sputtering and forms a less amount of particles during sputtering. The oxide sputtering target is made of an oxide sintered body including: with respect to a total content amount of metal compositions, 0.15 at % or more of one or more of Al, Ga, and In as a total content amount; 7 at % or more of Sn; and the balance Zn and inevitable impurities, wherein a total content amount of Al, Ga, In, and Sn is 36 at % or less.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: September 1, 2015
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Atsushi Saito, Rie Mori
  • Patent number: 9105278
    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: November 5, 2014
    Date of Patent: August 11, 2015
    Assignees: Sharp Kabushiki Kaisha, Memory-Tech Corporation
    Inventors: Hideharu Tajima, Go Mori, Yasuhiro Harada, Masaki Yamamoto, Hirohisa Yamada, Masahito Konishi
  • Patent number: 9001632
    Abstract: The present application discloses an information device for performing optical information processes for a recording medium including a phase-change recording layer which becomes amorphous under irradiation with pulsed amorphization light that has prescribed amorphization energy Ew. The information device includes an irradiator configured to irradiate a prescribed region of the phase-change recording layer with pulsed light and an energy setting portion which sets crystallization energy Ee for the pulsed light to crystallize the prescribed region. The crystallization energy Ee per the pulsed light, which is set by the energy setting portion, is greater than the amorphization energy Ew per the pulsed amorphization light.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: April 7, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takashi Mihara, Shigeru Furumiya
  • Patent number: 8879376
    Abstract: Provided are an optical information recording medium and an optical information recording device that enable to accurately form recording marks each having a certain code length and to accurately reproduce information, even in the case where shingled write recording is applied to optical information recording. An optical information recording medium (1) is provided with a user area (102) configured such that optical characteristics of a photosensitive recording material are changed by irradiation of laser light for recording information. The user area (102) includes recording tracks (104) on which information is recorded by overwriting a part of recording marks (106), and a heat insulating area (105) which is concentrically or spirally formed, and insulates heat generated by irradiation of the laser light. The heat insulating area (105) is formed between the recording tracks (104).
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: November 4, 2014
    Assignee: Panasonic Corporation
    Inventor: Kenji Narumi
  • Patent number: 8758980
    Abstract: An optical information recording medium 1 is constructed by sequentially layering a reflective layer 11, a protective layer 12, a recording layer 13, a protective layer 14, and a light transmissive protective layer 15 on a substrate 10. As the recording layer 13, a recording layer containing ZnS, SiO2, and Sb as principal components, or preferably, a recording layer expressed by a compositional formula [(ZnS)x(SiO2)1-x]y(SbzX1-z)1-y (where 0<x?1.0, 0.3?y?0.7, and 0.8<z?1.0 are met and X denotes at least one element selected from a group of Ga, Te, V, Si, Zn, Ta, and Tb) is adopted.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: June 24, 2014
    Assignee: Sony Corporation
    Inventors: Manami Miyawaki, Yuji Kuroda
  • Patent number: 8705326
    Abstract: A copy protection method includes the steps of providing an optical storage device having a substrate layer and a data structure layer coated on the substrate layer and containing a set of raw data codes; forming on the data structure layer at least one polarizing layer capable of causing a change in a light beam; and forming on the polarizing layer a scratch protection layer. The polarizing layer is located between the data structure layer and an optical reading device to influence a light beam irradiated thereon by the optical reading device, so that the set of raw data codes being optically accessed is conditionally converted into a different set of physical data codes. By providing the polarizing layer on the optical storage device to change the data codes that can be obtained by the optical reading device, it is able to stop illegal copying of the optical storage device.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: April 22, 2014
    Inventor: Ko Cheng Fang
  • Patent number: 8685621
    Abstract: An optical data storage disk includes a central substrate and on each side of the substrate a pair of metal/alloy recording layers separated by a transparent layer.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: April 1, 2014
    Assignee: Enhanced Data Solutions, LLC
    Inventors: Brian Medower, Ian Redmond, David Davies
  • Patent number: 8675464
    Abstract: A dual sided optical storage medium which comprises a substrate disk having a first information layer readable from one side of the medium through the substrate disk and one or more information layers formed on the non-read side of the first information layer and configured to be read from the other side of the medium.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: March 18, 2014
    Assignee: Cinram Group, Inc.
    Inventors: William R. Mueller, Ed Pickutoski
  • Patent number: 8668787
    Abstract: It is an object of the present invention to provide a Ag—Pd—Cu—Ge type silver alloy which can form a reflective electrode film having such two characteristics that it is very reduced in the lowering of reflectance caused by thermal deterioration and has resistant to yellowing caused by sulfurization even after a heating step in a process of producing a color liquid crystal display. The silver alloy according to the present invention includes a composition containing at least four elements including Ag as its major component, 0.10 to 2.89 wt % of Pd, 0.10 to 2.89 wt % of Cu and 0.01 to 1.50 wt % of Ge, and the total amount of Pd, Cu and Ge is 0.21 to 3.00 wt %.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: March 11, 2014
    Assignee: Furuya Metal Co., Ltd.
    Inventor: Atsushi Watanabe
  • Patent number: 8611202
    Abstract: The optical storage medium comprises a substrate layer, a data layer arranged on the substrate layer, a first nonlinear layer with a first super-resolution structure arranged above the data layer, and a second nonlinear layer with a second super-resolution structure arranged above the first nonlinear layer, the first nonlinear layer comprising a material having an increased reflectivity when irradiated with a laser beam and the second nonlinear layer comprising a material showing a transparency when irradiated with a laser beam. The first nonlinear layer comprises in particular a semiconductor material of one of the III-V semiconductor family having a low band-gap. And the second nonlinear layer comprises in particular a phase change material, for example SbTe or AIST.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: December 17, 2013
    Assignee: Thomson Licensing
    Inventors: Christophe Fery, Larisa Von Riewel, Gael Pilard
  • Patent number: 8605554
    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: Grant
    Filed: February 18, 2011
    Date of Patent: December 10, 2013
    Assignee: Thomson Licensing
    Inventors: Frank Przygodda, Stephan Knappman, Herbert Hoelzemann
  • Patent number: 8488437
    Abstract: In a recording medium, an extension address is obtained without changing the number of bits of the address embedded in the wobble. The wobble address is partially or wholly encoded to embed the address information. At the time of reproducing the address information, the original address information is obtained by restoring the embedded information by the decoding process.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: July 16, 2013
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Akio Fukushima, Masakazu Ikeda, Koichi Hirose, Koichiro Nishimura
  • Patent number: 8470514
    Abstract: A low-cost information recording medium is provided by which good recording quality can be obtained even when information is recorded thereon in a high density using a blue laser. The recording medium has a recording layer which comprises Sb, O and M. A content of O atoms is 30 atom % or more but not more than 55 atom %, a content of M atoms is 5 atom % or more but not more than 35 atom %, and a content of Sb atoms is 20 atom % or more but not more than 55 atom %. The recording layer does not contain Au, Pt and Pd.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: June 25, 2013
    Assignee: Panasonic Corporation
    Inventors: Haruhiko Habuta, Noboru Yamada
  • Publication number: 20130128710
    Abstract: Optical information recording medium comprises: a plurality of recording layers 14, each of which undergoes a change in refractive index by irradiation with recording beam; and an intermediate layer 15 provided between recording layers 14. The recording layer 14 contains polymer binder and dye dispersed in the polymer binder, and at least in proximity to an interface (far-side interface 18) between the intermediate layer 15 and a recording layer 14 disposed adjacent to incident side of the intermediate layer 15 from which the recording beam enters the intermediate layer, the intermediate layer 15 has refractive index different from that of the recording layer 14. Glass transition temperature of the polymer binder is lower than melting point and decomposition point of the dye, and refractive index of the polymer binder changes by receiving heat generated when the dye absorbs the recording beam, whereby information is recordable in the recording layer.
    Type: Application
    Filed: January 11, 2013
    Publication date: May 23, 2013
    Applicant: FUJIFILM CORPORATION
    Inventor: FUJIFILM Corporation
  • Patent number: 8407415
    Abstract: A device for recording information on a record carrier (11) is arranged for formatting a multilayer record carrier. The device has formatting means (16) for formatting the record carrier according which formatting includes de-icing by, in the event that locations in the user data area have not yet been recorded, writing dummy data (60) on the locations. The formatting means (16) determine a first radial position (50) and a first layer (40), which first radial position is indicative of a location on the first layer on which user data will be recorded first according to a predefined recording format. Subsequently said de-icing is started by writing of dummy data on a second layer (41) of the record carrier at the first radial position, opposite the location of the first user data (55). Hence a de-iced area (58) is created opposite the user data (55).
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: March 26, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Robert Albertus Brondijk, Jakob Gerrit Nijboer, Pope Ijtsma, Paulus Gijsbertus Petrus Weijenbergh, Johannes Hendrikus Maria Spruit
  • Patent number: 8397021
    Abstract: A device for recording information on a storage medium (11) is arranged for formatting the storage medium. The device has receives a format command according to a protocol (ATA/ATAPI). The device has formatting means for formatting a multilayer storage medium according to the format command. The formatting includes recording, on each layer (L0, L1) of the multilayer storage medium, a first control zone (71, 72) at a first radial position on the layer and a second control zone (73, 74) at a second radial position on the layer for forming an annular data zone of a selected size between the control zones. If the format size is smaller than a maximum available size on the storage medium, the control zones are positioned on substantially equal radial positions for forming radially corresponding annular data zones (75, 76). The required format size equals the sum of the selected sizes of each annular data zone.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: March 12, 2013
    Assignee: Konikklijke Philips Electronics N.V.
    Inventor: Robert Albertus Brondijk
  • Patent number: 8355308
    Abstract: An optical recording and reading method capable of enhancing the design flexibility of recording layers of an optical recording medium and performing accurate optical recording and reading operations. A basic recording layer is arranged in a position that is in the range of 90 ?m to 110 ?m away from a light incident surface of an optical recording medium, and recording layers are arranged in parallel with the basic recording layer. At least the position information of the recording layers is recorded in one of the basic recording layer and the recording layers.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: January 15, 2013
    Assignee: TDK Corporation
    Inventors: Hidetake Itoh, Koji Mishima, Takashi Kikukawa
  • Patent number: 8325586
    Abstract: The invention relates to a rewritable optical record carrier (100) comprising a recording stack (110) of layer (114), a recording layer comprising a phase-change recording material, and a second dielectric layer (116), having a thermal barrier layer (122) arranged adjacent to said first dielectric layer.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: December 4, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Andrei Mijiritskii
  • Patent number: 8295148
    Abstract: A dual format hybrid storage medium includes a non-recordable section in which data to be reproduced is written and in which data cannot be updated, and a recordable section in which data in the non-recordable section having a high probability of error occurrence may be backed up. The high probability of error is determined based on a range of fluctuation of an RF envelope, an unstable phase locked loop signal, a value of a sum level or sub-beam added level of the reproduced data, an unstable focus lock signal, a range of fluctuation of a track error signal and a range of fluctuation of a focus error signal. A determination is made to test for errors if a freeze-frame is found, audio and video are out of sync, a data seek fails or a picture distortion or a picture mosaic effect occurs.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: October 23, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jong-tae An
  • Patent number: 8241834
    Abstract: An optical recording medium includes a substrate having features that define track regions, an optical recording layer disposed on the substrate, and a light-transmitting layer disposed on the optical recording layer. The optical recording layer has a composition of (Sb2Se3)wTexOyPdz, where w, x, y, and z each represent a molar percent and satisfy 10 (mol %)?w?60 (mol %), 0 (mol %)<x?60 (mol %), 30 (mol %)?y?60 (mol %), 10 (mol %)?z?30 (mol %), and w+x+y+z=100.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: August 14, 2012
    Assignee: Sony Corporation
    Inventors: Kouichi Yasuda, Shigeki Takagawa
  • Patent number: 8203927
    Abstract: An information recording medium (100) is provided with: a data recording area (105, 115) to which one attribute, which corresponds to recorded data, of a plurality of types of attributes is given in each of segmentized area units; and an address recording area (1031, 1032) to record therein an address (AD0-1, AD1-1) of an edge portion on an outermost side of a recording area, which is a continuous recording area to which a data area attribute of the plurality of types of attributes is given and which is a recording area closest to an edge portion on an innermost side of said data recording area, the data area attribute indicating a status that user data is recorded as the data.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: June 19, 2012
    Assignee: Pioneer Corporation
    Inventors: Takeshi Koda, Keiji Katata, Masahiro Kato, Masayoshi Yoshida, Masahiro Miura, Eiji Muramatsu, Shoji Taniguchi
  • Patent number: 8194525
    Abstract: There are provided at least a first information storage area 20A and a second information storage area 40A. The first information storage area 20A contains, in advance, an OS or mpeg data. The second information storage area 40A is either write-once or rewriteable and available for writing OS update information or movie correction information. The configuration enables easy backup and restoration of software, content, and various information including update information for use by the software and content with reduced user time and workload.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: June 5, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasuhiro Harada, Shigemi Maeda, Hideharu Tajima, Tetsuya Hayashi, Atsushi Etoh
  • Patent number: 8133655
    Abstract: In an optical information recording medium of the present invention, at least one information layer provided on a transparent substrate includes a protective layer and a write-once recording layer that are disposed in this order from the transparent substrate side. The recording layer contains at least one selected from Cr—O, Zn—O, Ga—O, In—O, Sn—O, Sb—O, Bi—O, and Te—O. The protective layer contains at least one selected from Cr—O, Zn—O, Ga—O, In—O, Sn—O, Sb—O, Bi—O, and Te—O. When the total amount of all the atoms other than oxygen atoms contained in the protective layer is taken as 100 atom %, the total amount of atoms of Cr, Zn, Ga, In, Sn, Sb, Bi, and Te in the protective layer is at least 70 atom %.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: March 13, 2012
    Assignee: Panasonic Corporation
    Inventors: Hideki Kitaura, Yukako Doi, Shigeru Furumiya, Kenichi Nishiuchi, Noboru Yamada
  • Patent number: 8116192
    Abstract: A write-once optical recording medium is described, which in addition to the write-once properties also has rewritable properties. The optical recording medium has a recording layer with at least a first recording sublayer and a second recording sublayer for recording information marks by alloying material of the at least first and second recording layers. The materials of the at least first and second recording sublayers are chosen such that the alloyed material is a phase-change material adapted for recording additional data as phase changes of the alloyed material.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: February 14, 2012
    Assignee: Thomson Licensing
    Inventor: Stefan Knappmann
  • Patent number: 8094992
    Abstract: The present invention relates to an information recording device and method, a program storage medium, and a program, wherein updated file system information can be recorded without changing a logical address. As shown to the upper side in FIG. 18, in the event that data has been recorded, upon a file (Files (Stream+DB)) recorded in region B112 being updated, an updated file is recorded at region B112? as shown at the middle in FIG. 18. In conjunction with this, main FS (FS (Metadata)), inner side volume structure information, and anchor information, which had been recorded in region B111 until this time, is rendered unreadable, and newly-generated file system information (FS (Metadata)), inner side volume structure information, and anchor information, are recorded in region B111? in an ISA which is an inner side SA region. The present invention can be applied to a Blu-Ray Disc recording/playing device.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: January 10, 2012
    Assignee: Sony Corporation
    Inventor: Yoshikazu Takashima
  • Patent number: 8094543
    Abstract: An information recording medium according to the present invention includes at least three information recording layers. If the readout power of a laser beam in reading information from an information recording layer L(n) is identified by Pw(n), and if the readout power of the laser beam in reading information from an information recording layer L(n+a) is identified by Pw(n+a), then a base thickness between the information recording layers is determined so that the intensity of the light when the information recording layer L(n+a) is irradiated with a laser beam having the readout power Pw(n) becomes equal to or lower than that of the light when the information recording layer L(n+a) is irradiated with a laser beam having the readout power Pw(n+a).
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: January 10, 2012
    Assignee: Panasonic Corporation
    Inventors: Masahito Nakao, Yasumori Hino, Yoshiaki Komma, Fumitomo Yamasaki, Kousei Sano
  • Patent number: 8077590
    Abstract: Plural grooves or lands formed in an information recording carrier include at least a wobbling region and data is recorded wobblingly in this wobbling region by phase shift modulation while recorded digitally with a single or multiple waves as a channel bit.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: December 13, 2011
    Assignee: Victor Company of Japan, Limited
    Inventor: Tetsuya Kondo
  • Patent number: 8077589
    Abstract: A new optical recording medium capable of reducing the burden in erasing data in the optical recording medium is provided. The optical recording medium includes an organic pigment recording layer 12 and a light reflecting layer 14, which are at least laminated on a substrate 11, wherein a photocatalyst layer 13 is formed in contact with the organic pigment recording layer 12.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: December 13, 2011
    Assignee: Empire Technology Development LLC
    Inventor: Takahisa Kusuura
  • Patent number: 8054718
    Abstract: A write-once optical recording medium and a method and apparatus for recording management information on the recording medium, are provided. The recording medium includes at least one recording layer and SRR information on the recording layer. The SRR information pertains to at least one SRR and includes a header, an SRR entry list, and a terminator. The SRR entry list includes a plurality of SRR entries, each of the SRR entries pertaining to an SRR and including at least one status area for storing therein session start information.
    Type: Grant
    Filed: January 2, 2009
    Date of Patent: November 8, 2011
    Assignee: LG Electronics Inc.
    Inventor: Yong Cheol Park
  • Patent number: 8036097
    Abstract: Plural grooves or lands formed in an information recording carrier include at least a wobbling region and data is recorded wobblingly in this wobbling region by phase shift modulation while recorded digitally with a single or multiple waves as a channel bit.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: October 11, 2011
    Assignee: Victor Company of Japan, Limited
    Inventor: Tetsuya Kondo
  • Patent number: 8031581
    Abstract: Provided herein is an optical disc having: an optical plotting layer 17 which is formed at a label surface B-side and on which an image is formed by heat change with a laser beam 28 emitted from a recording surface A-side; a protective layer 18 which is formed at the label surface B-side of the optical plotting layer 17, protects the optical plotting layer 17, and through which the image can be viewed from the label surface B-side; a substrate 15 which supports the protective layer 18 and the optical plotting layer 17; and a guide track 24 which is formed on the optical plotting layer 17 so as to be intermittent in a guide direction.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: October 4, 2011
    Assignee: Pioneer Corporation
    Inventors: Kazuo Kuroda, Eiji Muramatsu
  • Patent number: 8027240
    Abstract: An information recording medium such as DVD-R, DVD-RW or the like is provided with a user information recording area in which user information can be recorded. The user information recording area has pre-recorded areas for preventing recording/reproduction of the user information, in a plurality of portions. The user information recording area is divided by the pre-recorded areas into a plurality of partial recording areas including a partial recording area smaller than a unit area in which record information of a read-only recording medium is recorded.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: September 27, 2011
    Assignee: Pioneer Corporation
    Inventor: Kazuo Kuroda
  • Patent number: 7982000
    Abstract: The present invention provides a solid material comprising an immobilized mixture of two or more proteorhodopsins, two or more bacteriorhodopsins, or one or more bacteriorhodopsin and one or more proteorhodopsins. The proteorhodopsins are selected from the group consisting of all-trans-retinal-containing proteorhodopsins and retinal analog-containing proteorhodopsins; all of which have absorption spectra that do not overlap. The bacteriorhodopsins are selected from the group consisting of all-trans-retinal-containing bacteriorhodopsins and retinal analog-containing bacteriorhodopsins; all of which have absorption spectra that do not overlap. The present invention also provides an optical information carrier, such as an optical data storage material and a fraud-proof optical data carrier, comprising the above-described solid material and a substrate selected from the group consisting of glass, paper, metal, fabric material, and plastic material, wherein said solid material is deposited on said substrate.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: July 19, 2011
    Assignee: Danisco US Inc.
    Inventors: Richard R. Bott, Rasmus B. Jensen, Bradley R. Kelemen, Donald E. Ward, II, Gregory M. Whited
  • Patent number: 7957244
    Abstract: The invention relates to the reading of digital optical recordings at very high density (CD, DVD, etc.). Reading is done by a PRML (“Partial Response Maximum Likelihood”) technique which uses a model of analog response to the recording of an isolated information bit. Customarily, the response model is represented by four or five signal samples having standardized levels 1 or 2. To take account of particular phenomena of super-resolution reading, the invention proposes the use of a model having 6 to 10 samples that can take 4 or 5 standardized levels. This model can result from the superposition of two simpler models having only two possible levels of samples taken from 1, 2 and 3.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: June 7, 2011
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Alain Fargeix, Olivier Lemonnier, Ludovic Poupinet
  • Patent number: 7944804
    Abstract: In an optical disk recording method adapted to record information on an optical disk by a light beam incident to the disk in one direction, the disk has a plurality of rewritable recording layers including a first layer nearest to a plane of incidence and a second layer distant from the plane of incidence. A target layer where user data is to be recorded is specified from the first and second layers. Prior to recording the user data to a requested address in the second layer when the target layer is the second layer, a partial region of the first layer corresponding to a same radial position as the requested address in the second layer is set to either a non-recorded state or a recorded state depending on a characteristic of the disk. The user data is recorded to the requested address in the target layer.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: May 17, 2011
    Assignee: Ricoh Company, Ltd.
    Inventor: Naoya Ohhashi
  • Patent number: 7940634
    Abstract: In a multilayer optical recording medium having three or more recording layers, when data is recorded on a recording layer far away from an incident surface of laser light, and especially on a recording layer farthest away from the incident surface of the laser light, by applying the laser light, the recording power margin of the farthest recording layer allows for a variation in the optimal recording sensitivity even if the transmittance of the recording layers located between the laser light incident surface side and the target recording layer is varied due to existing recordings and the amount of the laser light passing therethrough is also varied. In this case, the recording layer which is the farthest from an incident surface of laser light has a phase change recording film, and the recording layer which is the nearest from the incident surface of the laser light has a write-once read-multiple recording film.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: May 10, 2011
    Assignee: TDK Corporation
    Inventors: Koji Mishima, Takashi Kikukawa, Hidetake Itoh
  • Patent number: 7933192
    Abstract: At least a first recording layer (L0 layer) and a second recording layer (L1 layer) are provided. The first recording layer is disc-shaped, and has a first recording track path formed for recording recording information. The second recording layer is disc-shaped, arranged on the first recording layer and has a second recording track path formed in an opposite direction to the first recording track path for recording recording information. On edge parts on the outer circumference sides of the first recording layer and the second recording layer, first buffer areas (104-0 and 104-1) are further provided for preventing a recording or reproducing position from deviating from the first recording layer or the second recording layer and for interlayer jump. At least a part of the first buffer area is previously formed as a pre-recording area by an embossed pit (in the case of DVD-RW) or by a pit formed by recording laser irradiation (in the case of DVD-R).
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: April 26, 2011
    Assignee: Pioneer Corporation
    Inventors: Kazuo Kuroda, Takeshi Koda
  • Patent number: 7929404
    Abstract: An information recording medium (100) is provided with a plurality of recording layers (L0 layer, L1 layer) to record therein record information, and property information (200) indicating properties of the each recording layer is recorded in each of the plurality of recording layers.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: April 19, 2011
    Assignee: Pioneer Corporation
    Inventors: Masahiro Kato, Toshio Suzuki
  • Patent number: 7920454
    Abstract: An optical recording medium wherein a laser beam at a wavelength ? is irradiated and recording and reproducing of information are performed by optical power modulation of binary or more, and when the refraction index of the first substrate being n1, the refraction index of the intermediate layer being n2, the groove depth, the groove width and the track pitch of the first information layer being d1, w1 and p1 respectively and the groove depth, the groove width and the track pitch of the second information layer being d2, w2 and p2 respectively, the following conditions are satisfied. 4?/16n1?d1?7?/16n1 ?/16n2?d2?3?/16n2 or 4?/16n2?d2?7?/16n2 0.2?w1/p1?0.55 0.2?w2/p2?0.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: April 5, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Iwasa, Michiaki Shinotsuka, Masaru Shinkai
  • Patent number: 7869328
    Abstract: To provide an optical disk and an optical disk reproducing device capable of preventing sub information from being illegally copied and altered. An optical disk includes an optical disk substrate preliminarily provided with concave/convex recording marks in order to record the main information; and a reflection film which covers the optical disk substrate and of which the reflection coefficient is changed by irradiating laser light at or above a certain intensity. The reflection film is preliminarily provided with additional marks for recording the sub information by changing the reflection coefficient of the reflection film on a region where the concave/convex recording marks are formed and the sub information is recorded for every predetermined recording unit for recording the main information. The laser light at or above the certain intensity is irradiated onto the region where the sub information is recorded to reproduce the main information and delete the sub information.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: January 11, 2011
    Assignee: Panasonic Corporation
    Inventor: Masaru Yamaoka
  • Patent number: RE42222
    Abstract: Phase-change type, reversible optical information recording medium, being possible for recording, reproducing, erasing, and rewriting of information, by use of a laser beam. This invention, consists of recording thin film of ternary elements, for example, containing Ge, Te, Sb/or Bi or quaternary elements containing the fourth element of Se with which a part of Te is replaced, which is established on such surface—flat substrates as glass or plastics. In this case, the component ratio of Te and Se is selected not to be excess for other elements, such as Ge, Sb/or Bi so as to be fixed as stable compounds of stoichiometric compositions of GeTe, Sb2Te3/or Bi2Te3, or GeSe, Sb2Se3/Bi2Se3 when crystallized. Strictly speaking, a concentration of each component is selected to have proper ratio of the number of atoms each other so as to represent whole composition as the sum of each component. By this treatment, it is possible to have high crystallization speed and long cyclability of recording/erasing.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: March 15, 2011
    Assignee: Matsushita Electronic Industrial Co., Ltd.
    Inventors: Norboru Yamada, Kunio Kimura, Masatoshi Takao, Susumu Sanai