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Dynamic information storage or retrieval April category listing, related patent applications 04/12

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
04/26/2012 > 9 patent applications in 9 patent subcategories.

20120099407 - Method and apparatus for coupling a laser diode to a magnetic writer: A write head includes a cavity configured to couple a laser diode to the write head. A bottom of the cavity includes a heat conductive element configured to contact the laser diode, a plurality of thermal studs disposed below the heat conductive element, and a substrate disposed below the thermal... Agent: Seagate Technology LLC

20120099408 - Information processing device, information recording medium, information processing method, and program: A data recording and reproducing configuration in which both of BDMV standard compliant data and BDMV standard non-compliant data can be used is realized. A plurality of directories are set in a recording media, and a recording destination directory is selected according to the types of data. The BDMV standard... Agent: Sony Corporation

20120099409 - Recording device and spot position control method: A recording device including a light irradiating and light receiving unit which, in regard to an optical recording medium, which has a reference surface and a recording layer which is formed at a depth position different from the reference surface, where a pit row where intervals of pit formable positions... Agent: Sony Corporation

20120099410 - System and method for providing content in two formats on one drm disk: A DRM disk such as a Blu-ray stores content in a high resolution version for playing by a disk player. The disk also stores the same content in a lower resolution version for playing by a secondary device such as a Playstation Portable (PSP). The disk can be engaged with... Agent:

20120099411 - Optical information recording medium, optical information recording apparatus, and optical information recording method: An optical information recording medium includes a recording layer in which a track is formed, the track having recording marks linearly arranged thereon. Each recording mark has a dimension corresponding to a reference mark length, which serves as a reference, in a track direction along which the track extends, the... Agent: Sony Corporation

20120099412 - Ultraviolet curable composition for optical disc and optical disc: An ultraviolet curable composition having, a coating film cured with ultraviolet rays with a large number of crosslinking points due to a (meth)acrylate compound that does not intramolecularly have a cyclic moiety and has a functionality of three or more and, the compound does not intramolecularly have a cyclic moiety,... Agent:

20120099413 - Compound quarter-wave retarder for optical disc pickup heads: Chemically-bonded laminated polymer achromatic polarization devices, such as circular polarizers, are disclosed for use in optical disc (e.g., CD/DVD) pickup heads. Chemically-bonded laminated polymer achromatic polarization devices have the benefit of providing stable retardation and optic axis over an extended wavelength range, thereby ensuring orthogonal polarization in double-pass for two... Agent: Reald Inc.

20120099414 - Optical pickup device: An astigmatism element converges reflected light to generate focal lines, and a light separating element separates light fluxes of the reflected light entered into four first areas from each other. Two of the first areas are disposed in a direction along which a pair of vertically opposite angles defined by... Agent: Sanyo Electric Co., Ltd.

20120099415 - Read-only optical disc and method of manufacturing a read-only optical disc: [Solving Means] Additional supplementary information recorded with additional recording mark rows of the additional recording mark rows and pit rows is set to be previously recorded in a format of command information for instructing a normal DVD player to read. Similar to a so-called navigation command in a DVD system,... Agent: Sony Corporation

04/19/2012 > 10 patent applications in 9 patent subcategories.

20120092971 - Cross-track alignment waveguides and alignment scheme using alignment waveguides: A waveguide structure for aligning a light source to a center waveguide (CWG) in a TAMR head is disclosed and includes two alignment waveguides (AWVG) symmetrically formed about a plane that bisects the CWG lengthwise dimension. Each AWVG has a light coupling section formed parallel to a side of the... Agent: Headway Technologies, Inc.

20120092972 - Magneto-optic write-head characterization using the recording medium as a transducer layer: A magneto-optical transducer including a magnetic layer on a transparent, non-magnetic substrate is used to characterize the performance of a write head based on optically detected magnetization in the magnetic layer. The write head sample is held in contact with or near the magnetic layer, which is illuminated through the... Agent: Infinitum Solutions, Inc.

20120092973 - Light spot forming element, optical recording head, and optical recording device: Disclosed is a light spot forming element which is capable of forming a minute stabilized light spot efficiently and is easy to handle. For this purpose, there is provided a light spot forming element wherein a laser oscillation unit which has a periodic refractive index distribution and is employed as... Agent:

20120092974 - Information reproduction method, information recording method, and information recording medium: According to the present invention, a first error pattern caused by a shift of a bit relating to a recording mark or a space of a shortest length and a second error pattern caused by an edge shift of the recording mark are used. For each of a plurality of... Agent: Panasonic Corporation

20120092975 - Method of performing read/write process on recording medium, parameter adjustment method, storage device, computer system, and storage medium employing the methods: A method and apparatus for performing a read/write process on a recording medium having a defect, the method including determining an area of a recording medium, in which a defect, greater than a first set threshold, occurring in units of tracks, to be a massive defective area; adjusting a first... Agent: Samsung Electronics Co., Ltd.

20120092976 - Recording apparatus and control method: A recording apparatus including: a light-illuminating/receiving-unit illuminating an optical-disc-recording-medium through a common object-lens with recording-light and ATS-light and receiving reflected-ATS-light; a rotation-driving-unit driving rotation of the medium; a tracking-mechanism driving the lens in a tracking-direction parallel to the radial direction; a tracking-error-signal-generation-unit generating a tracking-error-signal; and a tracking-servo-controller performing tracking-servo-control... Agent: Sony Corporation

20120092977 - Optical recording medium, method of producing same, and recording device: An optical recording medium includes a recording layer in which recording of a mark is selectively performed in a depth direction by irradiation of first light, and the mark is formed in multilayer form; and a reflection film reflecting second light of a wavelength different from a wavelength of the... Agent: Sony Corporation

20120092978 - Optical disk drive with embedded test medium: Embodiments provide an optical disk drive that includes an embedded test medium for testing the optical performance of an optical head in the optical disk drive.... Agent:

20120092979 - Method of parallel bit-wise holographic data storage using a parallel light source: The present techniques provide techniques for outputting counter-propagating parallel light waves to pre-record a holographic data disk. The parallel light waves are transmitted through a holographic system via a fiber optic bundle including a plurality of polarization-maintaining (PM) optical fibers. Each of the PM optical fibers in the fiber optic... Agent: General Electric Company

20120092980 - Replication and formatting method and system for bit-wise holographic storage: The present techniques provide methods and systems for recording micro-holograms on a holographic disk using a plurality of counter-propagating light beams in parallel. The parallel counter-propagating light beams overlap to form interference patterns on a data layer and over multiple data tracks in the holographic disk. Rotating the disk enables... Agent: General Electric Company

04/12/2012 > 12 patent applications in 11 patent subcategories.

20120087217 - Thermally assisted magnetic head, head gimbal assembly, and hard disk drive: A thermally assisted magnetic head is formed by performing a head forming process, a mounting part forming process and a light source mounting process in that order. In the head forming process, a planned area is secured on a light source placing surface of a slider substrate, then a magnetic... Agent: Headway Technologies, Inc.

20120087218 - Write-once read-many information recording medium, information recording method, information reproduction method, information recording apparatus, and information reproduction apparatus: A write-once read-many information recording medium is provided, which is capable of easily searching for a latest DDS and a latest defect list. At least one disc management working area is sequentially allocated in a predetermined direction on the write-once read-many information recording medium of the present invention. The latest... Agent: Panasonic Corporation

20120087219 - Wobble signal extracting circuit, method for extracting wobble signal, and optical disk unit: A wobble signal extracting circuit includes: a readout signal generating circuit generating an RF signal by adding first and second detection signals corresponding to reflected light from inside and outside a recording track; a first subtractor generating a push-pull signal by subtracting the first and second detection signals, respectively; a... Agent: Renesas Electronics Corporation

20120087220 - Optical pickup and optical information recording and reproducing apparatus: An optical pickup includes a light source, an optical system for irradiating a recording medium including a plurality of recording layers with light from the light source, a diffraction optical element that divides light reflected from the recording medium into a plurality of optical fluxes and diffracts the fluxes, and... Agent:

20120087221 - Data writing control device, data writing control method, and data writing control program: A data writing control device enable quickly writing data to optical discs. A reading process unit 62a, 62b reads data in predetermined read units from a storage device (hard disk drive 14) that has a head and stores the data. A storage unit (buffers 63a and 63b) has a storage... Agent: Seiko Epson Corporation

20120087222 - Disc inspecting method and disc inspecting device: A disc inspecting method includes: forming recording marks on a disc; scanning the recording marks from inside to outside or from outside to inside of the disc by a pickup unit to read a reproduction signal while rotating a spindle to move a slider by each predetermined width; acquiring reproduction... Agent: Sony Corporation

20120087223 - Method of writing data to a disc, disc drive: The invention relates to a method of writing data to a disc (OD). The method comprised: a) performing a plurality of writing actions in which a plurality of data portions are written to the disc, b) performing a plurality of verification actions in which written data portions are at least... Agent: Lite-on It Corp.

20120087224 - Method and apparatus for detecting sync data of read data in a disk drive: According to one embodiment, a disk drive is provided, which starts reading data at the head thereof, when a sync mark is detected. The disk drive has a read channel that generates a forced SM detection signal if the sync mark cannot be detected because of the occurrence of TA.... Agent: Kabushiki Kaisha Toshiba

20120087225 - Digital pll circuit, information readout device, disc readout device, and signal processing method: A digital PLL (phase locked loop) circuit (and method thereof), includes an AAF (anti aliasing filter) that limits a frequency bandwidth of an input RF (radio frequency) signal on the basis of a given cutoff frequency, an ADC (analog to digital converter) that samples an output signal of the AAF... Agent: Renesas Electronics Corporation

20120087226 - Optical pickup lens: An optical pickup lens for focusing a light beam from a laser light source on an optical information recording medium is a single lens. The optical pickup lens has two surfaces, and a surface R2 opposite to a surface R1 closer to the laser light source has a continuous shape.... Agent: Hitachi Maxell, Ltd.

20120087227 - Optical pickup lens: An optical pickup lens for focusing a light beam from a laser light source on an optical information recording medium is a single lens. The optical pickup lens has two surfaces, and a surface R2 opposite to a surface R1 closer to the laser light source has a continuous shape.... Agent: Hitachi Maxell, Ltd.

20120087228 - Data medium of the compact disc type, in particular fitted with protection against copying, and corresponding method: A data medium of the compact disc type may include medium areas of different types configured to define digital content, and a controllable element having two different states corresponding respectively to the two different types of areas. The controllable element may be configured to take selectively one of its states... Agent: Stmicroelectronics (rousset) Sas

04/05/2012 > 7 patent applications in 7 patent subcategories.

20120082015 - Thermally-assisted recording (tar) patterned-media disk drive with optical detection of write synchronization and servo fields: A thermally-assisted recording (TAR) bit-patterned-media (BPM) magnetic recording disk drive uses optical detection of synchronization fields for write synchronization and optical detection of servo sectors for read/write head positioning. The synchronization fields and servo sectors extend generally radially across the data tracks and are patterned into discrete nondata blocks separated... Agent: Hitachi Global Storage Technologies Netherlands B.v.

20120082016 - Optical waveguide and thermally-assisted magnetic recording head therewith: An optical waveguide of the invention includes a core that is a waveguide through which light propagates; and a cladding that surrounds the core. The core has a plate shape and includes a wide core base part onto which the light is incident, a taper part that is connected to... Agent: Tdk Corporation

20120082017 - Storage region providing device, storage region providing method, and recording medium: A storage region providing device provides a physical storage region (a physical region) as a virtual storage region (a logical region). The device accepts a writing request including data and information for specifying a partial logical region that is part of the logical region. In a case that part of... Agent:

20120082018 - Optical disc recording device and recording signal generating device: Provided are an optical disc recording device and a recording signal generating device which enable to correct displacement between a reproducing position of a reproduction signal from a concave-convex mark preformed in an optical disc, and a recording position of second information to be recorded in synchronism with the reproduction... Agent:

20120082019 - Information recording device, information recording method, and electronic apparatus: An information recording device includes: a magnetic disk; an identify module; and a record module. The magnetic disk includes information tracks for recording information by a shingle recording method and an alternate track including an alternate sector for recording alternate information. The identify module is configured to identify a track... Agent: Kabushiki Kaisha Toshiba

20120082020 - Optical pickup device: An astigmatism element converges laser light in first and second directions to generate focal lines. A spectral element makes propagating directions of light fluxes entered into first through fourth areas different from each other to disperse the four light fluxes from each other. The direction along which the first and... Agent: Sanyo Electric Co., Ltd.

20120082021 - Optical pickup device: An optical pickup device, an optical drive using the same, and a method of forming a beam spot are provided. The optical pickup includes a light source system that includes a light source corresponding to at least one of a digital versatile disc (DVD) and a Blu-ray disc (BD). The... Agent:

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