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Dynamic information storage or retrieval March listing by industry category 03/13

20130077453 - Disk drive calibrating a laser write power for heat assisted magnetic recording: A disk drive is disclosed comprising a head actuated over a disk, wherein the head comprises a laser for heating the disk while writing data to the disk. The disk drive receives write commands, and increases a power of the laser to a write power for heating the disk while... Agent: Western Digital Technologies, Inc.

20130077454 - Data library apparatus, data archive system and server: In a data library apparatus for managing plural pieces of record media, and performing record/reproduction of data into/from the record media, there are provided an information-memorizing memory unit and a device-controlling control unit. Having received a data record/reproduction processing request from a server, the control unit collects load information imposed... Agent:

20130077455 - Objective lens driving device and optical pickup apparatus including the same: Provided are an objective lens driving device capable of strengthening the effective magnetic fluxes of the magnets while preventing increases in size and costs of the device; and an optical pickup apparatus including the same. The objective lens driving device of the invention includes an actuator frame for movably supporting... Agent:

20130077456 - Optical pickup and optical read/write apparatus: In one embodiment, an optical pickup includes an optical system which forms multiple light beams based on the light emitted from a light source and which converges a write beam and a read beam, thereby forming a main spot and a sub-spot, respectively, on an optical storage medium. This optical... Agent: Panasonic Corporation

20130077457 - Holographic recording method, and recording and reproduction apparatus: In one embodiment, a method is disclosed for recoding information in form of a hologram. The method can generate a displacement signal by detecting a displacement of a holographic recording medium. The method can perform an exposure control operation that, if the sampling value of the displacement signal falls within... Agent:

20130077458 - Optical read/write apparatus: In one embodiment, an optical read/write apparatus includes first and second optical pickups 2a, 2b and a control section. The first optical pickup 2a includes a first lens 3a that condenses a light beam emitted from a first light source onto an optical storage medium, and a first lens actuator... Agent: Panasonic Corporation

20130077459 - Optical disc and recording and reproducing apparatus and method: In a recording and reproducing apparatus, an optical disc is rotated in a rotating direction and an optical system focuses a laser beam on the optical disc to form a beam spot on the optical disc. The optical system is provided with a scanner which deflects the laser beam along... Agent:

20130077460 - Optical information recording medium, and substrate and manufacturing method for the optical information recording medium: In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is prescribed to be 0.18 though... Agent: Jvc Kenwood Corporation

20130077461 - Storage device: A storage device includes a recording medium, a probe, a substrate, and a processing unit. The recording medium stores a signal. The probe reads or writes the signal to/from the recording medium. The substrate is provided with the probe via a conductive anchor interposed therebetween and a first connection terminal... Agent:

20130077462 - Manufacturing method of disk drive device capable of reducing amount of unbalance, disk drive device and subassembly thereof: A disk drive device is provided with a recording disk, a base member, a bearing unit, and a hub member. In a marking step, unbalance information indicating the displacement of the center of gravity of the hub member with respect to the rotation center of the hub member is acquired,... Agent: Alphana Technology Co., Ltd.

20130070576 - Recording head for heat assisted magnetic recording with diffusion barrier surrounding a near field transducer: An apparatus includes a near field transducer positioned adjacent to an air bearing surface, a first magnetic pole, a heat sink positioned between the first magnetic pole and the near field transducer, and a diffusion barrier positioned between the near field transducer and the first magnetic pole. The diffusion barrier... Agent: Seagate Technology LLC

20130070577 - Optical recording medium, recording apparatus, recording method: Provided is an optical recording medium, including a plurality of tracks on each of which small record carriers are arranged in a wobbling manner, each of the small record carriers storing a recording state by modulation according to light irradiation, wherein the tracks are arranged adjacent to each other in... Agent: Sony Corporation

20130070578 - Data recovery device and method: A data recovery device including a filter, a tilt detection unit, a tilt cancellation unit and a data conversion unit is provided. The filter filters a radio-frequency data stream to generate an original data stream. The tilt detection unit synthesizes a tangential push-pull data stream by employing a first to... Agent: Sunplus Technology Co., Ltd.

20130064051 - Plasmonic transducer having two metal elements with a gap disposed therebetween: An apparatus includes a waveguide configured to deliver light to a transducer region. The apparatus also includes a plasmonic transducer that has two metal elements configured as side-by-side plates on a substrate-parallel plane with a gap therebetween. The gap is disposed along the substrate-parallel plane and has an input end... Agent: Seagate Technology LLC

20130064052 - Efficient access to storage devices with usage bitmaps: Upon receiving a request to allocate a storage region, a storage device may initialize the contents of the storage device to default values (e.g., zero) in order to avoid problems arising from unknown data stored in the locations of the storage region (e.g., upon writing a data set to a... Agent: Microsoft Corporation

20130064053 - Information recording medium, and recording method and reproducing method thereof: 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... Agent: Jvc Kenwood Corporation

20130064054 - Information recording medium, and recording method and reproducing method thereof: 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... Agent: Jvc Kenwood Corporation

20130064055 - Copy protection system for data carriers: A copy-protected compact disc includes, within a single session, a table of contents (TOC) and a Video CD index (VI). Each track (T) is prefaced by unrecoverable data (UD) at a track start position (ATOC) indicated by the table of contents (TOC). However, the Video CD index (VI) indicates the... Agent: First 4 Internet Ltd.

20130064056 - Method applying a pulsed laser beam for reading of an optical disc and respective apparatus: Method for reading data from an optical disc comprising a substrate layer, a read-only data layer, and a nonlinear layer with a super-resolution structure disposed on the data layer, the read-only data layer including diffractive pits and lands having a length larger than the diffraction limit of the pickup and... Agent: Thomson Licensing

20130064057 - Objective lens, optical head, optical disk device, and information processing device: A disclosed objective lens includes: a lens having an entrance surface and an emission surface; and an anti-reflection coat formed on the emission surface, wherein a transmittance T1—0 [%] of the anti-reflection coat when an incident angle of a first laser beam having a first wavelength λ1 (390 nm≦λ1≦430 nm)... Agent:

20130064058 - Optical disc apparatus: An optical disc apparatus includes a focus controller including a first digital filter, tracking controller including a second filter, focus actuator driver, tracking actuator driver, defect detector for detecting a defect on an optical disc, and a system controller for controlling the focus controller, the tracking controller and the defect... Agent: Hitachi Consumer Electronics Co., Ltd.

20130064059 - Optical disk library device and optical disk device selecting method: In an optical disk library device using a plurality of optical disk devices, before optical disk devices execute recording or reproduction of information to or from optical disks, self-monitoring information is acquired from an optical disk monitor, use preferential orders of the optical disk devices are evaluated on the basis... Agent: Hitachi-lg Data Storage, Inc.

20130064060 - Method and apparatus for determining a location of a feature on a storage medium: A change in a property of a signal is detected, the signal having been sensed from a storage medium by a disk drive. A count is determined, the count corresponding to a first location on the storage medium at which the change in the property of the signal sensed from... Agent: Marvell World Trade Ltd.

20130064061 - Mark forming apparatus and mark forming method: Provided is a mark forming apparatus including a head unit that forms a mark on a recording medium through laser beam irradiation based on a laser driving pulse, a control signal generation unit that generates a control signal at a start timing of the laser driving pulse supplied to the... Agent: Sony Corporation

20130064062 - Storage device: o

20130064063 - Master disc having a ptm later and a nickel undercoat: The invention provides a master disc comprising a stack of a substrate, a phase transition material layer, a heat absorption layer provided between the substrate and the phase transition layer, and an anisotropic heat sink layer provided between the substrate and the absorption layer. Further, a method of manufacturing a... Agent:

20130058199 - Apparatus comprising a pickup providing multiple beams: The apparatus includes a pickup for reading data from a super-resolution optical disc, the pickup comprising a laser for generating a main beam, a first and a second satellite beam, the two satellite beams each having a radial offset with regard to the main beam, a third satellite beam following... Agent: Thomson Licensing

20130058200 - Method for calibrating tilt of actuator by offsetting control voltage: A method for calibrating a tilt of an actuator includes the following steps: focusing a light beam projected from an objective lens onto a data layer of an optical disc; utilizing a digital signal processor to output control voltages through an analog driving circuit for driving the actuator to tilt... Agent:

20130058201 - Apparatus for digital rms detection and peak detection in head-disk contact detection: An apparatus comprises a root mean square (‘RMS’) value generator; an integrator coupled to the RMS value generator; a sample and hold switch coupled to an output of the integrator; a capacitor coupled between the sample and hold switch and a ground; an input of the analog to digital convertor... Agent: Texas Instruments Incorporated

20130058202 - Seek scan probe (ssp) cantilever to mover wafer bond stop: A seek-scan probe (SSP) memory involves multiple-wafer bonding needing precision small gaps in between. Solder reflow bonding is typically used to join the wafers due to its reliability and ability to hermetically seal. However, solder reflow bonding may not provide a consistently controllable gap due to flowing solder during the... Agent:

20130058203 - Optical storage medium comprising a phase shift compensation: The optical storage medium comprises a substrate layer, a data layer having a pit/land data structure with data arranged in tracks on the substrate layer and a nonlinear layer with a super-resolution material, wherein the data structure comprises diffractive pits and lands having a size above an optical resolution limit... Agent: Thomson Licensing