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Dynamic information storage or retrieval March listing by industry category 03/12

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.
03/29/2012 > 19 patent applications in 16 patent subcategories.

20120075965 - Heat assist magnetic write head, head gimbals assembly, head arm assembly, and magnetic disk device: The magnetic read write head has a read head and a write head, each having an end face exposed on an air bearing surface. The write head performs heat assist magnetic recording, and is provided with: a magnetic pole having an end face exposed on the air bearing surface; a... Agent: Tdk Corporation

20120075967 - Thermally assisted magnetic recording head: A thermally assisted magnetic head includes a magnetic pole that generates a writing magnetic field from an air bearing surface (ABS); a waveguide through which light propagates; and a plasmon generator generating near-field light from a near-field light generating end surface by coupling the light thereto in a surface plasmon... Agent: Tdk Corporation

20120075966 - Thermally-assisted magnetic recording head: A thermally-assisted magnetic recording head that includes an air bearing surface facing a recording medium and that performs a magnetic recording while heating the recording medium includes a waveguide configured with a core through which light propagates and a cladding that surrounds a periphery of the core and that includes... Agent: Tdk Corporation

20120075968 - Recording apparatus, recording method, recording medium, reproducing apparatus and reproducing method: The present invention relates to a recording/reproducing method, a recording/reproducing apparatus and a recording medium. In the conventional art, there is no method of distinguishing a program recorded on an RE layer by an application on a ROM layer, from a program recorded on the RE layer by a user,... Agent: Hitachi Consumer Electronics Co., Ltd.

20120075969 - Recording apparatus, recording method, recording medium, reproducing apparatus and reproducing method: The present invention relates to a recording/reproducing method, a recording/reproducing apparatus and a recording medium. In the conventional art, there is no method of distinguishing a program recorded on an RE layer by an application on a ROM layer, from a program recorded on the RE layer by a user,... Agent: Hitachi Consumer Electronics Co., Ltd.

20120075970 - Optical disc medium, reproduction method thereof and reproduction apparatus: The pit arrays on an optical disc medium are made to wobble at a frequency which is higher than the band of frequencies that a tracking servo can follow and which is lower than the band of frequencies of the reproducing signal. A wobble detection signal according to the amount... Agent:

20120075971 - Method for determining type of optical disk and optical storage device: A method for determining a type of an optical disk includes following steps. A laser beam of a first type is focused on a disk to generate a first optical reflection signal. A first spherical aberration estimate is generated according to the degree of dispersion and strength of the first... Agent: Sunplus Technology Co., Ltd.

20120075972 - Electron beam irradiating apparatus and lithography method: An electron beam irradiating apparatus according to an embodiment includes: a deflector configured to perform blanking or deflecting of the electron beam emitted from an electron gun, the blanking being performed based on a blanking control signal, the deflecting being performed based on a deflection control signal, or blanking and... Agent: Kabushiki Kaisha Toshiba

20120075973 - Optical disc apparatus, focus control method and control program: Focus control is performed for an optical disc having at least two data layers. One data layer is located closer than the other to a beam-incident surface of the disc. Maximum levels in positive and negative sides on a characteristic curve of a focus error signal obtained from the disc... Agent: J&k Car Electronics Corporation

20120075974 - Recording power calibrating method for improving seeking stability on recording power calibration area: In an optimal recording power calibration method for improving seeking stability on a recording power calibration area, a specific area serves as a data recording area during an optimal recording power calibration, wherein a length of the specific area is such that a plurality of times of optimal recording power... Agent:

20120075975 - Optical disc apparatus, information recording method, and optical disc: The invention prevents mark distortion during high-speed recording on an optical disc, thereby improving recording performance. A write pulse signal includes mark periods during which marks 201 are formed and space periods during which no marks are formed. Particular mark periods include a top pulse 101 having first write power... Agent: Hitachi-lg Data Storage, Inc.

20120075976 - Data recovery device and method: A data recovery device including an analog to digital converter (ADC), a filtering-equalizing unit, a zero crossing detector, a data phase locked loop, a data mapping unit and an estimation unit is provided. The ADC converts a radio frequency signal to a plurality of sampling data points. The sampling data... Agent: Sunplus Technology Co., Ltd.

20120075977 - Optical information recording/ reproducing apparatus and optical information recording and reproducing method: An optical information recording/reproducing device includes a liquid optical element containing a liquid crystal polymer layer in an optical head. A liquid crystal optical element drive unit drives a liquid crystal optical element having a first pattern electrode divided into a plurality of region at one side of the liquid... Agent: Nec Corporation

20120075978 - Objective lens element and optical pickup device: An objective lens element that can suppress occurrence of an aberration is disclosed. Sawtooth-like diffraction structures having different height and cycles (pitches) are provided on an inner part R21 and an outer part R22, respectively. A curved surface M211 extending at an intermediate level of recesses and projections of the... Agent: Panasonic Corporation

20120075979 - Optical element and objective lens through which a plurality of light beams having different design wavelengths pass: A method of designing an optical element to be used for an optical system in which each of a plurality of light beams having different design wavelengths passes through the optical element is provided. The method includes determining at least two types of optical path difference functions including first and... Agent: Hoya Corporation

20120075980 - High-resolution read head for an optical disk: The instant disclosure relates to a high resolution read head for an optical disk, including a monochromatic laser source; a radial polarization polarizer; an annular diaphragm that is opaque at the center and periphery thereof; an optical system for shaping the beam; and a light-concentrating microcomponent including a hemispherical lens,... Agent: Commissariat A L'energie Atomique Et Aux Energies Alternatives

20120075981 - Optical pickup device: Two light flux areas are disposed in a direction along which a pair of vertically opposite angles defined by first and second straight lines are aligned, and the other two light flux areas are disposed in a direction along which the other pair of vertically opposite angles are aligned. A... Agent: Sanyo Electric Co., Ltd.

20120075982 - Objective lens element and optical pickup device: An optical pickup device is provided which is compatible with at least two types of optical disc standards having different NAs and which controls an effective NA when a light beam for an optical disc standard having a relatively small NA is converged, thereby forming a desired spot. An inner... Agent: Panasonic Corporation

20120075983 - Information recording medium, information supply system, and optical information device: An information recording medium includes a first information recording layer and a second information recording layer. 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 numerical... Agent:

03/22/2012 > 7 patent applications in 6 patent subcategories.

20120069721 - Recording head and recorder: A recorder has a recording medium for information recording, a light source, an optical system, a slider, and an optical waveguide. To the optical system, light from the light source enters, and the slider moves relative to the recording medium while not in contact therewith. The optical waveguide is arranged... Agent: Konica Minolta Opto, Inc.

20120069722 - Reproducing device and optical path length servo control method: A reproducing device includes a homodyne detection part that carries out homodyne detection by using reflected light of first light obtained from a recording layer as signal light and using reflected light of second light by a mirror as reference light, a signal reproducing part that obtains a reproduced signal... Agent: Sony Corporation

20120069723 - Optical recording medium drive device and recording method: An optical recording medium drive device including: a combining prism for combining a recording first laser beam emitted from a first light source with a recording second laser beam emitted from the first light source so as to coaxially guide them; an objective lens for condensing the first and second... Agent: Pioneer Corporation

20120069724 - Optical pickup apparatus: An optical-pickup apparatus includes: a laser diode; an objective lens; a diffraction grating; a photodetector including main-beam-, first-sub-beam-, and second-sub-beam-light-receiving portions; a quarter-wave plate having either a second area allowing a reflected-laser beam to pass therethrough without polarization or a third area allowing the reflected beam to pass therethrough at... Agent: Sanyo Electric Co., Ltd.

20120069725 - Optical pickup apparatus: In an optical pickup apparatus, a major part of an optical path of a laser beam emitted from a first semiconductor laser device and an optical path of a laser beam emitted from a second semiconductor laser device 3 are shared. The first laser beam is transmitted through a quarter... Agent: Sanyo Electric Co., Ltd.

20120069727 - Method for evaluating read signal: A method for evaluating a read signal obtained by irradiating a medium with a laser beam through an objective lens and reading data from the reflected laser beam by a PRML detection method is provided. The method includes: a sampling step of sampling the data obtained from the reflected laser... Agent:

20120069726 - Optical storage focus servo system and method of controlling same: An optical storage focus servo system may include an optical pickup unit that includes an astigmatic focusing lens, a focusing actuator that controls a position of the lens relative to an optical media, and a plurality of detectors that detect an intensity and shape of a reflected beam from the... Agent: Oracle International Corporation

03/15/2012 > 15 patent applications in 12 patent subcategories.

20120063276 - Peptide nanostructures and methods of generating and using the same: A tubular or spherical nanostructure composed of a plurality of peptides, wherein each of the plurality of peptides includes no more than 4 amino acids and whereas at least one of the 4 amino acids is an aromatic amino acid.... Agent: Ramot At Tel-aviv University Ltd.

20120063278 - Near-field light generating element, method of manufacturing near-field light generating element, near-field light head, method of manufacturing near-field light head, and information recording and playback device: A core includes a first core, and a second core covering a side surface of the first core, and is formed in a polygonal shape when viewed from a Z direction. A metal film is placed on a side surface in the core, and is formed so that a width... Agent:

20120063277 - Near-field light generating element, method of manufacturing near-field light generating element, near-field light head, method of manufacturing near-field light head, and information recording and playpack device: A method of manufacturing the near-field light generating element includes a first cladding forming process of forming a first cladding on a substrate, a near-field light generation portion forming process of forming metal film base material on the first cladding, a core forming process of forming the core base material... Agent:

20120063279 - Recording medium, data recording/reproducing method, and data recording/reproducing apparatus: A recording medium, a data recording/reproducing method and a data recording/reproducing apparatus are disclosed. A recording medium comprises a data zone where user data are recorded; an inner zone located at an inner circumference of the data zone; and an outer zone located at an outer circumference of the data... Agent:

20120063280 - Method for storing audio-centered information with a multi-level table-of-contents (toc) mechanism with one master-toc and sub-tocs for various audio formats, a device for use with such mechanism and a unitary storage medium containing such mechanism: Audio information is stored on a unitary storage medium with a Table-of-Contents (TOC) mechanism for therein specifying an actual configuration of various audio items on the medium. In particular, one or more Sub-TOCs are each assigned to a respective different audio format. A single Master-TOC is provided for specifically pointing... Agent: Koninklijke Philips Electronics N.v.

20120063281 - Semiconductor laser device, optical pickup apparatus, and method of manufacturing semiconductor laser device: In a diffractive element, its grating pattern is so configured that a diffraction angle of a diffracted light beam of a light source that is subject to the first-order diffraction in a diffraction area is matched with an angle of a light beam passing through the diffractive area emitted from... Agent: Sharp Kabushiki Kaisha

20120063282 - Systems and methods for improved control of spindle speed during optical media seek operations: Improved control of spindle speed during optical media seek operations is provided by adjusting the spindle motor speed during the actual optical pickup unit movement. In response to receiving a seek instruction to move an optical pickup unit to a target position, the current signal frequency corresponding to a current... Agent: Zoran Corporation

20120063283 - Optical disc drive and control method thereof: A control method of an optical disc drive includes steps of: detecting data transmission is being performed between the computer system and the optical disc drive or not; stopping supplying an operating voltage to the optical disc drive if data transmission not being performed; determining whether or not an eject... Agent: Lite-on It Corporation

20120063285 - Method and apparatus for managing disc defects using updateable dma, and disc thereof: A reproducing apparatus is provided. The reproducing apparatus includes a recording/reading unit that records data on or reads data from a disc including a defect management area in which defect information regarding data recorded in a data area of the disc and defect management information for managing the defect information... Agent: Samsung Electronics Co., Ltd.

20120063284 - Systems and methods for track to track phase alignment: Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is discussed that includes: a data buffer, an inter-track interference response circuit, an inter-track interference signal estimator circuit, and a sync mark detector circuit. The data buffer is operable to... Agent: Lsi Corporation

20120063286 - Optical pickup apparatus: A conventional optical pickup apparatus has a problem that due to multiple optical paths provided therein, the number of parts of optical systems becomes larger and a time required for attaching the parts and adjusting an optical axis becomes longer. In optical pickup apparatus 1 of the invention, a major... Agent: Sanyo Electric Co., Ltd.

20120063287 - Objective lens, optical pickup, and optical drive device: Provided is an objective lens, which is provided in an optical pickup including a spherical aberration correction mechanism which performs a spherical aberration correction with respect to laser light applied to a recording layer of an optical recording medium, having the recording layer on which information can be recorded at... Agent: Sony Corporation

20120063289 - Metal complex and use thereof: There is provided a metal complex that is large in degree of a change in emission intensity, the change being caused by a change in molecular structure of a ligand through a photochromic reaction. The metal complex is arranged such that a diarylethene-based photochromic molecule coordinates to a metal ion... Agent:

20120063288 - Recording apparatus: A recording apparatus for recording information on an optical recording medium includes a mode-locked laser unit that includes a semiconductor laser emitting a laser beam for recording the information on the optical recording medium, and an external resonator, an optical modulation unit that amplifies and modulates the laser beam emitted... Agent: Sony Corporation

20120063290 - Write-once type information storage medium (disk structure of recording type information storage medium having structure in which recording layer formed on transparent susbstrate is defined as inside), and information reproducing method or information rec: An embodiment of the invention, to provide a recording method and a storage medium for BCA data with high reliability for a storage medium and a method for reproducing BCA data from the storage medium, and an information recording apparatus and an information reproducing apparatus. In a conventional optical disk,... Agent: Kabushiki Kaisha Toshiba

03/08/2012 > 9 patent applications in 8 patent subcategories.

20120057440 - Grating for vcsel coupling to a heat assisted magnetic recording head: An apparatus includes a waveguide including a core layer having curved edges shaped to reflect light to a focal point, and a grating positioned adjacent to or imbedded in the core layer, wherein at least a portion of the grating is positioned between the curved edges and adjacent to or... Agent: Seagate Technology LLC

20120057441 - Spherical aberration correction appropriate position search apparatus, and spherical aberration correction appropriate position search method: A focus error amplitude obtaining device is configured to obtain amplitudes of a focus error signal. An error amplitude difference calculation device is configured to calculate an error amplitude difference which is a difference between the amplitudes of the focus error signal obtained at two different positions in a moving... Agent: Panasonic Corporation

20120057442 - Information recording medium, and method and apparatus for recording a signal thereon: A disc-shaped information recording medium includes a laminate of recording layers on and from which an information signal can be optically recorded and reproduced from one side of the medium. Data areas are provided in the recording layers, respectively. The information signal can be recorded on and reproduced from the... Agent: Victor Company Of Japan, Ltd.

20120057443 - Information recording apparatus, information recording method, and computer program: An information recording apparatus carries out DC writing on a section B to change a reflectivity from a recording surface to display a visible character or image. Next, the apparatus writes record data on each of sections A to C under a special recording condition. The special recording condition is... Agent:

20120057444 - Information processing apparatus and operation control method of an information processing apparatus: According to one embodiment, an information processing apparatus includes an optical disc drive, a data processing module which executes data processing using the optical disc drive, and a power supply management module which manages supply of power to the optical disc drive. The data processing module interrogates the power supply... Agent:

20120057445 - Optical pickup device and optical disc apparatus: For obtaining stable servo-signals without receiving ill influences of stray lights from other layers, on both a focus error signal and a tracking error signal, when recording/reproducing a multi-layer optical disc having small gap between layers thereof, a light beam is divided with using a first and a second diffraction... Agent:

20120057446 - Sub-optical-resolution kerr signal detection for perpendicular write-head characterization: A property, such as a quality parameter, of a write pole in a write head is determined using an optical metrology device, where the write pole is smaller than the optical resolution limit of the metrology device. The metrology device produces polarized light that is reflected off the write pole... Agent: Infinitum Solutions, Inc.

20120057447 - Objective lens for optical pickup and optical pickup device: An objective lens for an optical pickup device is provided with a light-source-side lens surface by which laser light is converged, and a disc-side lens surface by which the laser light converged by the light-source-side lens surface is converged. The first lens surface and the second lens surface are configured... Agent: Sanyo Electric Co., Ltd.

20120057448 - Recording method, recording device and information recording medium: A writing method according to the present invention is a method for writing a data sequence as a combination of marks and spaces on an information recording medium by condensing a laser beam through a lens. The writing method is characterized in that a cooling pulse for recording a mark... Agent: Panasonic Corporation

03/01/2012 > 14 patent applications in 13 patent subcategories.

20120051194 - Voice coil motor: A voice coil motor (VCM) includes a lens carrier physically connected to a magnetic device, an electromagnetic driving apparatus, constructed by a coil, a magnetic sensing element, a storage media and a controller. The magnetic sensing element detects a location of the lens carrier and outputs the location value relating... Agent:

20120051195 - Thermally-assisted recording head and magnetic recording system: In a magnetic recording head including an optical waveguide for guiding a laser beam to a surface of a magnetic recording medium, a shield is provided in the vicinity of at least one portion changing discontinuously in structure of the optical waveguide to absorb or reflect non-propagating light leaking from... Agent: Hitachi, Ltd.

20120051196 - Near-field transducer with thermal sensor and system for clocking write data in a patterned-media magnetic recording disk drive: A near-field transducer (NFT) has a primary tip that concentrates the oscillating charge of the NFT onto a substrate, such as magnetic recording medium, to heat regions of the medium, and a secondary tip. The secondary tip is located close to a temperature sensor, such as an electrical conductor whose... Agent: Hitachi Global Storage Technologies Netherlands B.v.

20120051197 - Object lens actuator and disc drive using the same: The present invention provides an object lens actuator in which a tilt of an object lens due to a change of an ambient temperature is inhibited even when a metal member is attached to a resin based securing part. It is desirable to improve quality of writing and playing in... Agent: Hitachi Media Electronics Co., Ltd.

20120051198 - Method for writing data on multilayer optical disc and optical disc drive: The present invention provides a method for writing data on a multilayer optical disc with N information storage layers (where N is an integer and N≧2). The kth deepest one (where k is an integer and 1≦k≦N) of the storage layers of the multilayer optical disc is called a kth... Agent: Panasonic Corporation

20120051199 - Optical disk device and track pull-in method: To improve the track pull-in performance in the servo control of an optical disk device, track pull-in is performed by driving the objective lens by an actuator, outputting an electrical signal according to the amount of reflected light from the optical disk, generating a focus error signal and a tracking... Agent:

20120051200 - Information processing apparatus and information processing method: An information processing apparatus includes: a signal reproduction section configured to obtain a reproduced signal from a recording medium by radiating a laser beam emitted by a laser-beam source to the recording medium; and a high-frequency signal superposition section configured to superpose either a first high-frequency signal or a second... Agent: Sony Corporation

20120051201 - Data reproducing apparatus: According to one embodiment, a data reproducing apparatus includes a data recording medium, light source unit, light application unit, photodetector unit and control unit. An address mark string including address marks is formed on the data recording medium. The address marks are spaced from each other by a distance depending... Agent: Kabushiki Kaisha Toshiba

20120051202 - Distinction method for optical disk type, optical disk device, and integrated circuit: Provided are an optical disc discrimination method, an optical disc device and an integrated circuit that enable to accurately discriminate the type of an optical disc. The optical disc discrimination method comprises a first seeking step (S3) of performing a seek operation to a predetermined reference address in a user... Agent:

20120051203 - Apparatus for using content, usage method of the content, computer program, recording medium and integrated circuit: The present invention provides an apparatus for correctly controlling content recorded on an optical disc. An apparatus 600 for using content recorded on an optical disc 601, wherein the optical disc 601 includes a control information area 602 composed of partial areas 603a-603n, each being for recording control information indicating... Agent:

20120051204 - Optical pickup: An optical pickup compatible with two wavelengths such as an optical pickup having a two-wavelength, multi-laser source unit to be compatible with both DVDs and CDs prevents, in a simply structured optical system, error signal quality deterioration caused by relative shifting between laser beams and realizes detection of focus and... Agent: Hitachi Media Electronics Co., Ltd.

20120051205 - Optical pickup apparatus: Provided is an optical pickup apparatus using a reduced number of parts. An optical pickup apparatus (26) of the present invention includes: a laser unit (108) for emitting a laser beam complying with the BD standards; a laser unit (106) for emitting a laser beam complying with the DVD standards... Agent: Sanyo Electric Co., Ltd.

20120051206 - Objective lens, lens manufacturing method, and optical drive apparatus: An objective lens includes: a solid immersion lens having a super-hemispherical or hemispherical shape, wherein a hyper-lens portion is formed in a part of an object-side surface of the solid immersion lens and integrated therewith by alternately stacking a first thin film having a positive dielectric constant and a second... Agent: Sony Corporation

20120051207 - Objective lens for optical pickup and optical pickup device:

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