Control Structure On Storage Medium Sensed By Other Than Transducer Support (e.g., Conductive Strip, Notched Edge Sensor) Patents (Class 369/52.1)
  • Patent number: 10468029
    Abstract: A communication terminal includes circuitry. The circuitry receives audio data collected by an audio collecting device, and transmits the audio data to a speech recognition apparatus via a network. The circuitry further receives text data, which is a result of speech recognition of the audio data, from the speech recognition apparatus, reproduces the audio data, and displays the text data on a display device during a period in which the audio data is being reproduced.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: November 5, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventor: Akihiro Nakashima
  • Patent number: 8953423
    Abstract: There is provided a cartridge including a plurality of optical information recording media having unique information recorded thereon, an accommodation body configured to accommodate the plurality of optical information recording media, and an identification device configured to store the unique information of the plurality of optical information recording media and supply the unique information to a changer in a non-contact manner, the identification device being provided in the accommodation body.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: February 10, 2015
    Assignee: Sony Corporation
    Inventors: Yoshihisa Chiba, Hisao Tanaka, Osami Banjo
  • Patent number: 8665678
    Abstract: A reproduction device, contains a rotatable operation disk part for performing an input related to reading of data stored in a memory and a capacitance sensor section for outputting a sensor value expressing a change of a capacitance according to depression of the rotatable operation disk part. The device also contains a storage part for storing a reference value corresponding to the sensor value obtained while the rotatable operation disk part is not depressed, and a control part for judging presence/absence of pressing on the rotatable operation disk part based on a vector quantity being a relative value obtained from a difference between the sensor value output from the capacitance sensor section and the reference value stored in the storage part.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: March 4, 2014
    Assignee: D&M Holdings, Inc.
    Inventor: Kazuhiro Onizuka
  • Patent number: 8653824
    Abstract: A method for quasi-static testing a magnetic recording head read sensor is described. The method includes applying a first voltage to a heater in the magnetic recording head and measuring an output of the magnetic recording head read sensor while applying the first voltage to the heater and recording the measured output as a first set of measurements. The method further includes applying a second voltage to the heater in the magnetic recording head and measuring the output of the magnetic recording head read sensor while applying the second voltage to the heater and recording the measured output as a second set of measurements. The first and second sets of measurements are then compared.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: February 18, 2014
    Assignee: Western Digital (Fremont), LLC
    Inventors: Feng Liu, Mehran Zargari
  • Patent number: 8441338
    Abstract: A digital media playing system includes, in one embodiment, a digital video and/or audio media object, such as a portable digital media container adapted to hold one or more digital storage mediums, that includes a radio frequency identification tag containing RFID tag information. The digital media playing system also includes a trusted media content playing device that has a radio frequency identification tag reader operatively coupled therewith, to read the RFID tag information from the RFID tag that is located on the portable media container and that securely downloads remotely stored audio and/or video media based on the RFID tag information. The RFID tag information that is in the RFID tag includes, in one embodiment, encrypted tag identification information and unencrypted remote content identification information as well as, if desired, portable digital media container authentication data (e.g. player ID).
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: May 14, 2013
    Assignee: Accenture Global Services Limited
    Inventors: Alexandre Naressi, Patrice Fauvet
  • Patent number: 8436717
    Abstract: A rotation-activated electronic component, preferably a RFID tag mounted on or incorporated in a support that is rotated when read, e.g. a CD or DVD. The RFID tag comprises an antenna, a rotational switch and a component, advantageously a processor. The antenna is adapted to transform received RFID signals to electric energy that powers the component. In a preferred embodiment, the rotational switch is adapted to cut the circuit unless the support does not rotate at or above a certain rotational speed. Supports equipped with the RFID tag of the invention will thus respond only if they rotate sufficiently. This can avoid collisions in case more than one such RFID tag is within communication range of an antenna of a reader. In a preferred embodiment, the information returned by the component is needed for full use of the content on the support.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: May 7, 2013
    Assignee: Thomson Licensing
    Inventors: Yves Maetz, Marc Eluard, Niclas Stahl
  • Patent number: 8271801
    Abstract: A method, apparatus and a data storage device are provided for implementing data confidentiality and integrity of data stored in overlapping, shingled data tracks on a recordable surface of a storage device. A unique write counter is stored for each zone written to the recordable surface of the storage device. An encryption key is used together with the write counter information and a logical block address to encrypt each sector being written, and to decrypt all sectors being read. An individual sector is decrypted, obtaining the write counter information and reading the data sector. A message authentication code is stored for each zone. All sectors of the zone are read to perform integrity check on a sector.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: September 18, 2012
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventor: Cyril Guyot
  • Patent number: 8179758
    Abstract: An optical disc includes tracking polarity information. The optical disc includes a clamping area, a lead-in area, a data area, and burst cutting area (BCA). The BCA is present between the clamping area and the lead-in area and in which information regarding the optical disc is recorded, and the information is read before performing tracking in the data area.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: May 15, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung-geun Lee, In-sik Park, Jung-wan Ko, Du-seop Yoon
  • Patent number: 8174945
    Abstract: There are provided a multi-layered optical disk and an optical disk device capable of swiftly reproducing control information recorded into a predetermined recording layer in advance. The object can be accomplished by employing the following configuration: When the optical disk device performs a focus lead-in operation into the multi-layered optical disk, the device positions its optical pickup at a BCA radius position, and takes advantage of a signal which is generated such that an influence exerted on the signal by BCA is avoided. Also, the object can be accomplished by employing the following configuration: An angle index unit for indicating a rotation reference position is provided in the multi-layered optical disk, and a partial area of the BCA is selected as an unrecording area. The optical disk device starts the focus lead-in operation in synchronization with rotation angle information created from the rotation reference position.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: May 8, 2012
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventor: Yoshinori Ishikawa
  • Patent number: 8130607
    Abstract: An apparatus for detecting burst cutting areas on optical discs includes an optical pickup head, a front-end processing unit, a sync pattern detector, a channel clock recovery device, and a data demodulator. The front-end processing unit generates a BCA signal in response to a radio frequency signal. The sync pattern detector counts the BCA signal according to a reference clock, detects a sync pattern of the BCA signal and outputs a channel bit length counting value. The channel clock recovery device generates a channel clock according to the reference clock and the channel bit length counting value. The data demodulator transfers the BCA signal into a BCA data according to the channel clock. The sync pattern detector continuously counts the BCA signal and continuously outputs a plurality of counting values, so that the sync pattern of the BCA signal can be determined according to at least three sequential counting values.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: March 6, 2012
    Assignee: Sunplus Technology Co., Ltd.
    Inventors: Chia-Ming Chang, Chun-Nan Liu, Ping-Chiang Yang
  • Patent number: 8121007
    Abstract: A file system which is enabled to use a Metadata Partition instead of VAT for write-once discs, is provided by a pseudo-overwrite method. On applying this invention to a drive apparatus which supports pseudo-overwrite media, the file system distinguishes data to overwrite from data to append. When the data is newly written to a logical sector, the drive apparatus writes the data to a physical sector to which the logical sector corresponds. When the logical sector is overwritten the data is written to another unrecorded physical sector in the volume space, and remapping information that specifies the original address, and the remapping address are stored in the remapping table.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: February 21, 2012
    Assignees: Panasonic Corporation, Microsoft Corporation
    Inventors: Rajeev Y. Nagar, Garret J. Buban, Yoshiho Gotoh, Sarosh C. Havewala, Ravinder S. Thind, Vishal V. Ghotge
  • Publication number: 20110310715
    Abstract: Provided is an information recording medium including a plurality of recording layers. Each recording layer may comprise at least one optical power control (OPC) area, and each OPC area is allocated so as not to overlap an adjacent layer in a given radius.
    Type: Application
    Filed: August 12, 2011
    Publication date: December 22, 2011
    Inventors: Sung-Hee Hwang, In-Oh Hwang, Jung-Wan Ko, Kyung-Geun Lee
  • Patent number: 8059507
    Abstract: A method of storing a data storage device includes but is not limited to emplacing a data storage device in a container, the container having surfaces; and writing storable data to the data storage device by transmitting energy through a surface of the container. In addition to the foregoing, other method aspects are described in the claims, drawings, and text forming a part of the present application. Other methods and apparatuses are also disclosed.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: November 15, 2011
    Assignee: The Invention Science Fund I
    Inventors: W. Daniel Hillis, Roderick A. Hyde, Muriel Y. Ishikawa, Edward K. Y. Jung, Nathan P. Myhrvold, Lowell L. Wood, Jr.
  • Publication number: 20110273975
    Abstract: A sensing device including a base, a pillar, an arm, a sensing element and a driving module is provided. The base has a supporting surface suitable for supporting the object. The pillar is disposed on the supporting surface. The arm has two ends and a pivot portion between the two ends. The pivot position is pivoted to the pillar along an axis substantially parallel to the supporting surface. The sensing element is disposed on the arm and located between an end and the pivot portion. The sensing element is located between the base and the object. The driving module is disposed between the arm and the base. The driving module drives the arm to pivot relatively to the pillar along the axis, and the sensing element moves toward or away from the object as the arm is pivoted.
    Type: Application
    Filed: May 27, 2010
    Publication date: November 10, 2011
    Applicant: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Shih-Tung Cheng, Po-Chien Chou, Yu-Cheng Lin
  • Patent number: 7986599
    Abstract: A drive apparatus of the present invention includes a recording/reproduction section and a drive control section. The drive control section at least performs a process including: allocating a contiguous area to a specific location in the user data area other than the location specified by the recording instruction; controlling the recording/reproduction section to record the data in the allocated contiguous area; and generating new disc management information including first replacement management information for mapping a start location of the contiguous area specified by the recording instruction to a start location of the allocated contiguous area and second replacement management information for mapping an end location of the contiguous area specified by the recording instruction to an end location of the allocated contiguous area.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: July 26, 2011
    Assignee: Panasonic Corporation
    Inventor: Tadashi Nakamura
  • Patent number: 7916592
    Abstract: Embodiments of methods and systems for controlling access to information stored on memory or data storage devices are disclosed. In various embodiments, fluid-mediated modification of information or access to information is utilized. According to various embodiments, data storage devices designed for rotating access are described which include rotation-activated fluid control mechanisms.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: March 29, 2011
    Assignee: The Invention Science Fund I, LLC
    Inventors: Bran Ferren, Eleanor V. Goodall, Edward K. Y. Jung
  • Patent number: 7916615
    Abstract: Embodiments of methods and systems for controlling access to information stored on memory or data storage devices are disclosed. In various embodiments, fluid-mediated modification of information or access to information is utilized. According to various embodiments, data storage devices designed for rotating access are described which include rotation-activated fluid control mechanisms.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: March 29, 2011
    Assignee: The Invention Science Fund I, LLC
    Inventors: Bran Ferren, Edward K. Y. Jung, Clarence T. Tegreene
  • Patent number: 7898917
    Abstract: An optical disc includes tracking polarity information. The optical disc includes a clamping area, a lead-in area, a data area, and a burst cutting area (BCA). The BCA is present between the clamping area and the lead-in area and in which information regarding the optical disc is recorded, and the information is read before performing tracking in the data area. Accordingly, it is possible to obtain the tracking polarity information and/or reflectivity information without trial and error and directly record or reproduce user data in a data area of the optical disc.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: March 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung-geun Lee, In-sik Park, Jung-wan Ko, Du-seop Yoon
  • Publication number: 20100315922
    Abstract: A rotation-activated electronic component, preferably a RFID tag mounted on or incorporated in a support that is rotated when read, e.g. a CD or DVD. The RFID tag comprises an antenna, a rotational switch and a component, advantageously a processor. The antenna is adapted to transform received RFID signals to electric energy that powers the component. In a preferred embodiment, the rotational switch is adapted to cut the circuit unless the support does not rotate at or above a certain rotational speed. Supports equipped with the RFID tag of the invention will thus respond only if they rotate sufficiently. This can avoid collisions in case more than one such RFID tag is within communication range of an antenna of a reader. In a preferred embodiment, the information returned by the component is needed for full use of the content on the support.
    Type: Application
    Filed: June 10, 2010
    Publication date: December 16, 2010
    Inventors: Yves Maetz, Marc Eluard, Niclas Stahl
  • Patent number: 7835255
    Abstract: A media ID recording apparatus has an optical pickup 20 for forming an elongated optical spot on a recording surface of an optical disk DK; and a support table 32 for fixedly supporting the optical pickup 20. The optical pickup 20 is fixed to the support table 32 via a wedge-like spacer 33 as tilted toward the radial direction of the optical disk DK. The focal position of the elongated optical spot at the rear side in the moving direction is matched to the recording surface of the optical disk DK and the focal position of the optical spot at the front side in the moving direction is shifted from the recording surface of the optical disk DK, whereby the light intensity of the optical spot at the front side in the moving direction becomes smaller than the light intensity of the optical spot at the rear side in the moving direction. A media ID is recorded on the optical disk DK by using the optical spot thus set.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: November 16, 2010
    Assignee: Panasonic Corporation
    Inventors: Masafumi Kumagai, Mitsuaki Oshima
  • Patent number: 7756400
    Abstract: A method of an embodiment of the invention optically writes a plurality of image data files on an optically writable data side of an optical disc. The method optically marks a plurality of thumbnail images on an optically writable label side of the optical disc. Each thumbnail image corresponds to one of the image data files.
    Type: Grant
    Filed: July 25, 2004
    Date of Patent: July 13, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Cari Dorsh
  • Patent number: 7649819
    Abstract: Disclosed herein are a high-density recording medium and a method and apparatus for controlling data playback thereof. Playback control information, such as channel bit length information, is recorded in a burst cutting area (BCA) of a high-density optical disc in a wobble type. When the high-density optical disc is reproduced, the playback control information is detected in a push-pull signal detection mode and the optimum data playback operation corresponding to the recording capacity of the optical disc is performed on the basis of the detected playback control information. Alternatively, bit error rates (BERs) are calculated while a plurality of predetermined bit detection modes are sequentially performed, one of the bit detection modes corresponding to the smallest one of the calculated BERs is selected and the data playback operation is performed in the selected bit detection mode.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: January 19, 2010
    Assignee: LG Electronics Inc.
    Inventors: Jin Yong Kim, Sang Woon Suh
  • Patent number: 7639580
    Abstract: Optical disk players include a disk spinning system that is configured to spin an optical disk at a constant linear velocity and a burst cutting area decoding system that is configured to decode data in a burst cutting area of the optical disk, while the optical disk is spinning at the constant linear velocity. The burst cutting area data decoding system may be configured to determine a rotational frequency of the optical disk while reading the data in the burst cutting area, and using the rotational frequency that was determined to decode the data in the burst cutting area that was read.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: December 29, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-woong Lee, Dae-woong Kim
  • Patent number: 7599274
    Abstract: A recording medium, such as a high-density and/or read-only recording medium, such as BD-ROM, which contains a control ionformation, such as copy protection information, encoded in intermittent or alternate wobbled pits, and to methods and apparatuses for forming, recording, and reproducing data on the recording medium.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: October 6, 2009
    Assignee: LG Electronics Inc.
    Inventors: Sang Woon Suh, Jin Yong Kim
  • Patent number: 7596066
    Abstract: An optical disc apparatus allows an optical pickup to seek to a physical address 30000Hex, and controls high-speed CLV of a spindle motor to be 1.04-multiple speed of CLV so as to set rotational speed of the spindle motor at 1440 rpm, before reproducing information from NBCA. The optical disc apparatus acquires spindle output for the spindle motor during the CLV control, and calculates an average value of the acquired spindle output, and further stores the calculated average value. When reproducing the information of NBCA, the optical disc apparatus controls the spindle output to be the average value of the spindle output so as to control the rotational speed of the spindle motor at 1440 rpm. This makes it possible for the optical disc apparatus to reproduce the information of NBCA without using an FG.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: September 29, 2009
    Assignee: Funai Electric Co., Ltd.
    Inventor: Kozo Wada
  • Patent number: 7596069
    Abstract: Separate sets of optical medium identification information are embedded in separate aligned layers of the optical medium to allow an optical drive to initiate use of the optical medium with information from both layers. For instance, a first set of identification information is embedded in the data layer of the optical medium and a second set of identification information is embedded on the protective surface layer of the optical medium. The first and second sets of information align so that a mixed signal is provided when the optical medium is initially inserted in the optical drive with the optical drive reading the separate sets of information while the read head is at a single location.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: September 29, 2009
    Assignee: Dell Products L.P.
    Inventors: Christiaan Steenbergen, Ed Beeman, Dirk Erickson, Thomas L. Pratt, Charles Robert Weirauch
  • Publication number: 20090108076
    Abstract: An immobile, non-magnetic mode sensor, preferably an optical sensor, is entirely supported by a housing of a reader for electro-optically reading indicia in a handheld mode, and in a hands-free mode, of operation. The mode sensor is operative for sensing the mode of operation, for example, by detecting whether the housing has been grasped by an operator, or by detecting whether the housing has been removed from a support surface. The mode sensor is actuatable between handheld and hands-free states, which respectively correspond to the handheld and hands-free modes of operation. A controller is operative for selecting the mode of operation, which is sensed by the mode sensor, in which the indicia is to be read.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 30, 2009
    Inventors: Edward Barkan, Igor Vinogradov
  • Patent number: 7489598
    Abstract: According to the invention, an optical disc reproducing apparatus includes a housing for: a reading section which reads data recorded on an optical disc, a data storing section and a reproducing section which reproduces the stored data. A reference discal unit outside the housing rotates at a pre-determined reference rotational speed and direction. An operation discal unit mounted on the reference discal unit, may rotate at a desired speed and direction. A detection discal unit is coupled with the operation discal unit, to rotate in sync with the operation discal unit. First and second detecting sections detect a rotational speed and direction of the detection discal unit and the reference discal unit, respectively. A control section determines the rotational speed and direction of the detection discal unit based on detected results and controls the reading section, the storing section and the reproducing section, thereby performing a desired data reproduction.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: February 10, 2009
    Assignee: D&M Holdings Inc.
    Inventor: Masayuki Hori
  • Publication number: 20090022023
    Abstract: Embodiments of methods and systems for controlling access to information stored on memory or data storage devices are disclosed. In various embodiments, fluid-mediated modification of information or access to information is utilized. According to various embodiments, data storage devices designed for rotating access are described which include rotation-activated fluid control mechanisms.
    Type: Application
    Filed: August 22, 2008
    Publication date: January 22, 2009
    Applicant: Searete LLC
    Inventors: Bran Ferren, Edward K.Y. Jung, Clarence T. Tegreene
  • Publication number: 20080123490
    Abstract: According to one embodiment, an information recording medium which is configured to record information includes a first area which stores first information indicating the range of a currently formatted area, and a second area which stores second information indicating the range of a previously formatted area.
    Type: Application
    Filed: December 27, 2006
    Publication date: May 29, 2008
    Inventors: Akihito Ogawa, Chosaku Noda
  • Publication number: 20080117755
    Abstract: An optical disk compliant with both a conventional optical disk such as a BD, HD DVD, and the like and a next-generation high-density optical disk according to a near-field light recording system and the like is provided. An information recording medium includes a first information recording layer and a second information recording layer, to/from which information is recorded or reproduced using laser beam. The first information recording layer is formed at a laser beam entrance surface, and is configured so that information can be recorded thereupon and/or reproduced therefrom using a first objective lens having a first numerical aperture NA1 and laser beam of a first wavelength ?1. The second information recording layer is formed so as to have a distance to the laser beam entrance surface is 0.05 mm to 1.
    Type: Application
    Filed: November 15, 2007
    Publication date: May 22, 2008
    Inventors: Fumitomo Yamasaki, Kanji Wakabayashi, Yoshiaki Komma, Toshiyasu Tanaka
  • Patent number: 7369471
    Abstract: Embodiments of methods and systems for controlling access to information stored on memory or data storage devices are disclosed. In various embodiments, fluid-mediated modification of information or access to information is utilized. According to various embodiments, data storage devices designed for rotating access are described which include rotation-activated fluid control mechanisms.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: May 6, 2008
    Assignee: Searete LLC
    Inventors: Bran Ferren, Eleanor V. Goodall, Edward K. Y. Jung
  • Patent number: 7369472
    Abstract: An optical disc includes tracking polarity information. The optical disc includes a clamping area, a lead-in area, a data area, and a burst cutting area (BCA). The BCA is present between the clamping area and the lead-in area and in which information regarding the optical disc is recorded, and the information is read before performing tracking in the data area. Accordingly, it is possible to obtain the tracking polarity information and/or reflectivity information without trial and error and directly record or reproduce user data in a data area of the optical disc.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: May 6, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung-geun Lee, In-sik Park, Jung-wan Ko, Du-seop Yoon
  • Patent number: 7362691
    Abstract: An optical disc includes tracking polarity information. The optical disc includes a clamping area, a lead-in area, a data area, and a burst cutting area (BCA). The BCA is present between the clamping area and the lead-in area and in which information regarding the optical disc is recorded, and the information is read before performing tracking in the data area. Accordingly, it is possible to obtain the tracking polarity information and/or reflectivity information without trial and error and directly record or reproduce user data in a data area of the optical disc.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: April 22, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung-geun Lee, In-sik Park, Jung-wan Ko, Du-seop Yoon
  • Patent number: 7349309
    Abstract: Disclosed is a disk-like recording medium, a disk recording apparatus and a disk recording method, and a disk playback apparatus and a disk playback method. Disk ID is recorded over a circle of a burst cutting area on an optical disk. The circle is divided into n blocks, each of the blocks is divided into m frames, and ID information is recorded in each of the frames with k channel bits.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: March 25, 2008
    Assignee: Sony Corporation
    Inventor: Susumu Senshu
  • Patent number: 7342871
    Abstract: A high-density optical disc such as a high density-digital versatile disc (HD-DVD) or Blu-ray disc, and a method for reproducing or recording data of the high-density optical disc. The high-density optical disc includes a lead-in area, a data area and a lead-out area. The lead-in area has control information. A minimum mark or space length of the control information recorded in the lead-in area is longer than that of data recorded in the data area. The control information of the lead-in area is copied to the lead-out area. On the basis of the data reproduction or recording method, an optical disc device can correctly read and confirm the control information from the high-density optical disc, minimize the interference between a mark and space in high-density recording data, reduce the effects of scratches or dust on the disc, and efficiently prevent an erroneous data reproduction or recording operation.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: March 11, 2008
    Assignee: LG Electronics Inc.
    Inventors: Kyung Chan Park, Young Kuk Kim
  • Patent number: 7304937
    Abstract: A system and method of identifying programs contained on a disk of any format, including, for example, either a single-sided or a double-sided disk with either a single-layer or multi-layer tracks, are presented. In particular, a dual-sided recording medium is disclosed having respective program data on the first and the second sides of said medium. In addition, the medium has a first area on the first side and a second area on the second side, and the areas have laser encoded data representing individualized information relating to said respective program data. The areas may or may not overlap each other depending on the configuration chosen. Also disclosed is an apparatus for laser encoding the above-described recording medium, and a method for processing a disk having more than one laser encoded areas.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: December 4, 2007
    Assignee: Thomson Licensing
    Inventor: Jianlei Xie
  • Patent number: 7288935
    Abstract: A dynamic electrical tester (DET) for testing head gimbal assemblies (HGA) is disclosed. The DET simulates disk drive operation while significantly reducing tester capital investment. Multiple HGAs are tested simultaneously using modular spin stands with shared electronics. This design increases utilization of electronics and minimizes the effect of spindle start/stop time. A parallel array of spin stands with shared electronics is used to reduce tester component and materials cost by multiplexing between the spin stands. The DET has the significant advantage of reducing wait time by making use of the electronics while they are idle during mechanical-related delays. In addition, the DET includes more channels per test head that can readily switch back and forth between the products being tested.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: October 30, 2007
    Assignee: Hitachi Global Storage Technologies Netherlands BV
    Inventors: Terry Farren, Yong Shen
  • Patent number: 7277987
    Abstract: An information processing apparatus which makes it possible to accurately manage a plurality of storage media realized by cooperation with each other while maintaining a combination or combinations thereof, and manage data for each OS. A storage media supporting device removably supporting at least one storage medium is removably attached to the information processing apparatus. When the storage media supporting device is attached to the information processing apparatus, the storage media housed in the storage media supporting device is electrically connected to the information processing apparatus. The contents of data stored in the storage media are detected, and a visible identifier provided on the storage media supporting device is changed into a state corresponding to the detection result.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: October 2, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Asami Sato, Masahiro Ando, Koji Kimura, Michihiko Tsunekawa, Hideaki Kajihara, Tsutomu Shimada
  • Publication number: 20070140084
    Abstract: An information table storage stores an information table. The information table includes information regarding contents of an optical disk, disk identification information, and specific information representing relationships between the optical disk and an apparatus. An identification information detector section detects identification information when the optical disk is loaded in the apparatus. A search section searches the information table to see whether the identification information detected by the identification detector section is included in the information table. A specific information processor section determines whether the specific information read out from the optical disk corresponds to a currently-used apparatus. A notification processor supplies relevant information to a user interface where the identification information is included in the information table and the readout specific information corresponds to the currently-used apparatus.
    Type: Application
    Filed: October 2, 2006
    Publication date: June 21, 2007
    Inventor: Norikatsu Chiba
  • Patent number: 7116615
    Abstract: A reproduction method for reproducing BCA data for optical discs using the defect signal. The reproduction method for reproducing BCA data includes the steps of: generating a defect signal as a BCA signal by detecting an RF signal of the BCA; generating a BCA data bit stream by sampling the BCA signal according to a sampling clock; and decoding the BCA data bit stream to generate BCA data. Because the defect signal is utilized as the BCA signal of the invention, no additional BCA signal extracting device is needed.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: October 3, 2006
    Assignee: Media Tek Inc.
    Inventor: Hung-Tien Yen
  • Patent number: 7102978
    Abstract: The present invention is applied to an optical disk apparatus which records data on and/or plays back data from one of a variety of DVD optical disks. The present invention generates a binarization threshold S3 by offsetting an envelope S2 of a playback signal RF by an offset voltage V1, and binarizes the playback signal RF (S4) according to the binarization threshold.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: September 5, 2006
    Assignee: Sony Corporation
    Inventor: Koichiro Ogihara
  • Patent number: 7061843
    Abstract: A BCA (Burst Cutting Area) code including a unique disk code indicating the type of a disk is written in a BCA code area of the disk. If the disk is mounted into the optical disk player, the optical disk player reads data written in the BCA code area, extracts the disk code contained in the read data, and confirms the type of the disk corresponding to the extracted disk code by retrieving a disk code table in which disk codes corresponding to the types of disks are mapped.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: June 13, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jae-seong Shim
  • Patent number: 7006415
    Abstract: A sampling clock generator for BCA data decoding providing a sampling clock, which is proportional to the actual rotation speed of a disk. The sampling clock generator includes a frequency counter, a divider and a frequency divider. The frequency counter counts the number of pulses of a reference clock for each period of a rotation speed indicating signal of a spindle motor and generates a counting value. The divider divides the counting value by a predefined value and generates a divided value. The frequency divider is employed to generate the sampling clock. The frequency divider receives the reference clock and divides the frequency of the reference clock by the divided value to generate the sampling clock. The frequency divider also adjusts the phase of the sampling clock according to the BCA reproducing signal.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: February 28, 2006
    Assignee: Media Tek Inc.
    Inventors: Kuen-Suey Hou, Kun-Hung Hsieh
  • Patent number: 6970638
    Abstract: Predetermined information, for example, BCA data and a total reproduction time etc. is read from a loaded disc and the disc information thus read is supplied to a CPU 1. Then, a discrete setting area 3b is retrieved to determine whether or not parameters are registered in correspondence with the disc information thus read. When it is determined that the parameters are registered, the parameters registered in correspondence with the disc information is read from the discrete setting area 3b and set in an audio decoder 12 and a subpicture decoder 13, respectively. When it is determined that the parameters are not registered, standard parameters are read from a standard setting area 3a and set to the audio decoder 12 and the subpicture decoder 13, respectively.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: November 29, 2005
    Assignee: Funai Electric Co., Ltd.
    Inventor: Tamotsu Miyagawa
  • Patent number: 6950379
    Abstract: A method for extracting information in a data signal stored on an optical disc. The information is stored in a plurality of channel bits. The method includes initializing a recovery period of a recovery clock to a predetermined value expressed in cycles of a first clock; sampling the data signal with the first clock; obtaining a leading edge time period expressed in cycles of the first clock of a pattern of bits from the sampled data in which at least a first bit has a first binary value, followed by a plurality of bits having a second binary value, and ending with a last bit having the first binary value, wherein the first and second binary values are not equal; updating the recovery period of the recovery clock to be equal to a new maximum period that is the leading edge time period divided by a division factor; extracting the information in the data signal based on the newest recovery period of the recovery clock; and detecting a predetermined code in the data signal.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: September 27, 2005
    Assignee: MediaTek Inc.
    Inventors: Chung-Tien Yen, Po-Jen Shen
  • Patent number: 6839311
    Abstract: The information recording unit has a memory for firstly storing data, a record medium for intermittently recording the stored data in the memory, a record means for recording the data on the record medium, and a valid-data decision means for determining whether the recorded data is valid. The record means records the data in at least two different areas on the record medium, and the decision determines one valid data among the recorded data in the different areas. The unit includes a record control means for controlling the record means. The record control means provides a control command for the record means to record a predetermined quantity of data stored in the memory at a first recording location on the record medium and also provides a control command for the record means to read the predetermined quantity of the data at least one recording location different from the first recording location after the predetermined quantity of the data is recorded at the first recording location.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: January 4, 2005
    Assignee: Pioneer Corporation
    Inventors: Katsuaki Yamanoi, Junichi Yoshio, Takayuki Iijima, Jun Shinohara, Osamu Yoshizawa
  • Patent number: 6839900
    Abstract: A disk cartridge which allows for the user to know what contents are recorded in which disk cartridge without the need of reproducing the disk cartridge, a method of manufacturing the same and a recording/reproducing system using the same have been provided, in which the disk cartridge is accomplished by incorporating the optical disk in a case, a recording surface of the optical disk is comprised of an annular inner area, a clamping area, a transition area, an information recording area and a rim area, which are arranged from inside to outside in radial directions of the optical disk, and disk cartridge identification information is recorded in the transition area of the optical disk, and also the disk cartridge identification information recorded in the optical disk is provided discernibly from outside the case.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: January 4, 2005
    Assignee: Sony Corporation
    Inventors: Manabu Obata, Mitsunori Matsumura
  • Patent number: 6827276
    Abstract: In a data recording and reproducing method, data blocks are recorded in a storage unit. Priority levels each for one of the data blocks are set and stored. It is determined whether or not a vacant area of the storage unit is expected to be short. When the vacant area of the storage unit is expected to be short. The data blocks recorded in the storage unit are recompressed in accordance with the stored priority levels.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: December 7, 2004
    Assignee: NEC Corporation
    Inventor: Satoshi Itoi
  • Patent number: RE39297
    Abstract: An object of the present invention is to provide a marking forming apparatus, a method of forming a laser marking on an optical disk, a reproduction apparatus, an optical disk, and a method of manufacturing an optical disk, capable of providing a greatly improved copy prevention capability as compared to prior known construction. To achieve this object, in the optical disk of the invention, for example, a marking is formed by a laser on a reflective film of a disk holding data written thereon and at least position information of the marking or information concerning the position information is written on the disk in an encrypted form or with a digital signature appended thereto.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: September 19, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Mitsuaki Oshima, Yoshiho Gotoh