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Dynamic information storage or retrieval March list of patents 03/08

20080074983 - Optical pickup device: An optical pickup device for reading a signal recorded in an optical disc including a first signal recording layer and a second signal recording layer, comprising: a laser diode configured to emit laser light; and a diffraction grating configured to be applied with laser light emitted from the laser diode,... Agent: Fish & Richardson P.C.

20080074981 - Optical pickup system: The present invention provides an optical pickup system including a first light source emitting a light flux with a first wavelength; a second light source emitting a light flux with a second wavelength; and a light-converging optical system converging the light flux with the first wavelength from the first light... Agent: Cohen, Pontani, Lieberman & Pavane

20080074984 - Architecture for a memory device: A memory device for a probe storage system comprises a media die including a frame and a media platform movably coupled with the frame, a tip die connected with the frame such that the tip die is generally parallel to the media platform, the tip die including a plurality of... Agent: Fliesler Meyer LLP

20080074985 - Reproducing apparatus, reproducing method, and reproducing program: Disclosed herein is a reproducing apparatus including, a content storage block configured to store content and attribute information thereof by relating with each other, an input block configured to enter a command, a reproducing block configured to reproduce content, and a control block configured to control the reproducing block such... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080068936 - Data writing and reading method for memory device employing magnetic domain wall movement: A method of data recording and reading for a memory device employing magnetic domain wall movement. The memory device includes a writing track, an interconnecting layer formed on the writing track, and a recording track formed on the interconnecting layer.... Agent: Sughrue Mion, PLLC

20080068937 - Electric field applying magnetic recording method and magnetic recording system: A method for writing information on a highly coercive recording medium stably with an electric field applied through a metal probe and with a magnetic field applied from external and an information recording system that employs the method. The recording medium includes a substrate, a first ferromagnetic layer formed on... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080068938 - Coil-manufacturing method and objective-lens driving apparatus: Of the two coil units 2-1 and 2-2 constituting an upper-stage coil unit, the coil unit 2-1 is passed through the winding of a coil unit 1-2 that constitutes a lower-stage coil unit, together with a coil unit 1-1, from inside to outside of the winding. A wire led inwards... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080068939 - Objective lens actuator, diffractive optical element, and optical pickup device: An objective lens is directly fixed to one surface of a lens holder. Driving coils that generate focusing thrust and tracking thrust are provided in the lens holder, which is elastically supported by supporting springs according to an amount of thrust generated by the driving coils. A compatible diffractive optical... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080068940 - Method for locking onto a track after an optical pickup of an optical disc drive passes through a defective section of an optical disc: An optical disc drive generates a control signal according to the delay of a TZC signal. The control signal can determine if an optical pickup of the optical disc drive crosses a track. When the optical pickup is reading a defective section of an optical disk, the optical disc drive... Agent: North America Intellectual Property Corporation

20080068941 - Method of processing defect detection signal in recording and/or reproducing apparatus that records and/or reproduces optical information storage medium: A method of processing a defect detection signal in a recording and/or reproducing apparatus that records and/or reproduces an optical information storage medium the method including generating a defect detection signal comprising a servo hold pulse from a radio frequency (RF) signal output from an optical pickup unit; and generating... Agent: Stein, Mcewen & Bui, LLP

20080068942 - Optical disk apparatus and optical aberration correcting method: An optical disk apparatus irradiates first and second lights, which are emitted from an identical light source, on a disk-like volumetric recording medium from both sides thereof with first and second object lenses corresponding to the first and second lights, respectively, such that the lights are focused in an identical... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080068949 - Optical disk apparatus: In an exemplary embodiment of the present invention, after test write is performed with a predetermined test power to a first track on an optical disk, test write is performed with the same test power as the first track to a second track adjacent to the first track. Then, reproduction... Agent: Ditthavong Mori & Steiner, P.C.

20080068948 - Optical disk, recording method, recording medium, and optical disk unit: A method of recording information using a laser on a multilayer optical disk having a plurality of recording layers is provided. The plurality of recording layers include a first recording layer and a second recording layer adjacent the first recording layer. The first recording layer is provided with a first... Agent: Dickstein Shapiro LLP

20080068951 - Disk drive apparatus and method for adjusting focus bias and spherical aberration correction value: A disk drive apparatus includes: head means for performing laser irradiation to and detection of reflected light from an optical disk recording medium and having a focus bias mechanism and a spherical aberration correction mechanism; focus bias means for driving the focus bias mechanism to add a focus bias to... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080068959 - Optical disc drive and method of controlling focal position: An optical disc drive for recording and/or reading information on or from an optical disc is disclosed. The optical disc drive includes: a position controller which controls the position of the objective lens based on the position-controlling light beam reflected by the reflective surface by condensing the position-controlling light beam... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080068965 - Data processing apparatus, recorder and disk with multiple storage layers: A data processing apparatus according to the present invention generates data to be written continuously on first and second recording layers of a recording medium. The first and second recording layers have first and second storage capacities, respectively. The data processing apparatus includes: a data storage in which the data... Agent: Mark D. Saralino (mei) Renner, Otto, Boisselle & Sklar, LLP

20080068967 - Multilayer optical recording medium and recording method on multilayer optical recording medium: In a multilayer optical recording medium having three or more recording layers, when data is recorded on a recording layer far away from an incident surface of laser light, and especially on a recording layer farthest away from the incident surface of the laser light, by applying the laser light,... Agent: Oliff & Berridge, PLC

20080068943 - Recording device, recording method, and computer program: A recording apparatus with a device for recording information onto a medium, provided with: (i) a first layer irradiated with laser light to record information on a first area; and (ii) a second layer irradiated with laser light through the first layer and having a second area whose edge on... Agent: Young & Thompson

20080068944 - Optical pick-up head, optical information apparatus, and optical information reproducing method: An optical information apparatus of the present invention includes: an optical pick-up head including: a light source; a diffraction unit; a condensing unit; a beam splitter; a photodetector; and a tracking error signal generator. An optical recording medium has tracks arranged substantially at a constant pitch. An average of a... Agent: Hamre, Schumann, Mueller & Larson P.C.

20080068945 - Information recording medium, recording apparatus, reproduction apparatus, recording method and reproduction method: An information recording medium is provided that includes a data area for recording user data and a defect management area for recording a defect list for managing N number of defect areas existing in the data area, where N is an integer satisfying N≧0. The defect list includes two or... Agent: Mark D. Saralino (mei) Renner, Otto, Boisselle & Sklar, LLP

20080068946 - Information recording medium, recording apparatus, reproduction apparatus, recording method and reproduction method: An information recording medium is provided that includes a data area for recording user data and a defect management area for recording a defect list for managing N number of defect areas existing in the data area, where N is an integer satisfying N≧0. The defect list includes two or... Agent: Mark D. Saralino (mei) Renner, Otto, Boisselle & Sklar, LLP

20080068947 - High-frequency superimposing method and optical disk apparatus using it: An optical disk drive includes drive current generation unit for supplying a mark forming semiconductor laser drive current and a space forming semiconductor laser drive current; first high-frequency superimposition unit for superimposing a high-frequency component on the space forming semiconductor laser drive current; and high-frequency superimposition control unit for controlling... Agent: Mcdermott Will & Emery LLP

20080068950 - Optical disc device and optical disc semiconductor: The purpose is to provide an optical disc apparatus which can accurately calculate a gain for focus control. An optical apparatus (100) includes: an FE generator (20) for generating an FE signal; an AS generator for generating an AS signal (21); a normalization operator (22); an Fc filter (23); a... Agent: Wenderoth, Lind & Ponack L.L.P.

20080068957 - Method for detecting servo error, apparatus therefor, disk which maintains quality of servo error signal, method of controlling servo of disk recording/reproducing apparatus, method of detecting tracking error, and method of detecting tilt error: An apparatus for recording data on and reproducing data from the disk in which a recording area is divided into sectors, includes a reproducing signal generator for generating a reproducing signal including sum signals V1 and V2 of radial pairs, a sum signal RF_sum, and a push-pull signal RF_pp from... Agent: Stein, Mcewen & Bui, LLP

20080068952 - Track jump control circuit: A track jump control circuit performing control for an optical pickup to ump from a present scanning track position to a target scanning track position on an optical disc including a header portion and a data portion, through counting the number of pulses of a binarized tracking error signal, the... Agent: Fish & Richardson P.C.

20080068953 - Write once disc allowing management of data area, method of managing the data area, and apparatus and method for reproducing data from write once disc: A write once disc allowing management of a data area, includes a lead-in zone, a data area, and a lead-out zone. The write once disc includes a predetermined area storing area allocation information which indicates whether at least one section of the data area is allocated for disc defect management.... Agent: Stein, Mcewen & Bui, LLP

20080068956 - Write once disc allowing management of data area, method of managing the data area, and apparatus and method for reproducing data from write once disc: A write once disc allowing management of a data area, includes a lead-in zone, a data area, and a lead-out zone. The write once disc includes a predetermined area storing area allocation information which indicates whether at least one section of the data area is allocated for disc defect management.... Agent: Stein, Mcewen & Bui, LLP

20080068955 - Write once disc allowing management of data area, method of managing the data area, and method for reproducing data from write once disc: A write once disc allowing management of a data area, includes a lead-in zone, a data area, and a lead-out zone. The write once disc includes a predetermined area storing area allocation information which indicates whether at least one section of the data area is allocated for disc defect management.... Agent: Stein, Mcewen & Bui, LLP

20080068954 - Write once disc, disc drive therefor, and method of managing disc defect considering compatibility with rewritable disc drive: A write once disc, a disc drive therefor, and a method of managing disc defects on the write once disc using the disc drive in consideration of the compatibility of the write once disc with a rewritable disc drive, the write once disc includes a single record layer disc in... Agent: Stein, Mcewen & Bui, LLP

20080068958 - Write-once optical disc, and method and apparatus for recording/playback management information on/from optical disc: A write-once optical disc, and an apparatus and method for recording management information on the optical disc are provided. The disc includes at least one recording layer, a plurality of temporary defect management areas (TDMAs) on the at least one recording layer, and a plurality of defect management areas (DMAs)... Agent: Birch Stewart Kolasch & Birch

20080068960 - Optical pickup device: The present invention provides an optical pickup device capable of properly suppressing coma aberration which occurs due to a relative tilt error between objective lenses. The optical pickup device includes: first and second objective lenses having different optical characteristics; a lens holder provided with first and second lens receiving cylindrical... Agent: Osha Liang L.L.P.

20080068961 - Optical disk having tracking polarity information, and apparatuses and methods for recording and reproducing user data on the same: 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... Agent: Stein, Mcewen & Bui, LLP

20080068962 - Recording apparatus, recording method, program and computer-readable recording medium: The occurrence of fragments is suppressed in an index file that manages individual contents files recorded on a recording medium. On an optical disk 2, a contents file and an index file that manages each of the contents files are recorded. The index file is formed of attribute information of... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20080068963 - Apparatus and method for processing information and program therefor: An information processing apparatus may include the following elements. A content data generating unit generates first unit data segments constituting first content data and sequentially outputs the data segments. A holding unit is divided into a first holding area and a second holding area and holds the output first unit... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20080068966 - Information recording medium: In an information recording medium comprising at least a substrate, a recording layer, and a resin layer, the substrate is formed with at least a pit corresponding to a read only area 31 and a groove corresponding to a recording/reproducing area 32 without overlapping with each other. A reflectivity of... Agent: Connolly Bove Lodge & Hutz LLP

20080068969 - Optical disc and optical disc device: In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc... Agent: Birch Stewart Kolasch & Birch

20080068964 - Optical information recording medium and display method therefor: An optical information recording medium having a drawing region capable of being used without being reversed and without interference with a data recording region is disclosed. The optical information recording medium has a structure in which a recording layer, a semitransparent reflective layer, a discoloration layer, and a protective layer... Agent: Knobbe Martens Olson & Bear LLP

20080068968 - Optical recording medium and method of producing the same: An optical recording medium capable of suppressing film thickness irregularity of interlayer between a plurality of optical recording layers and effects of warps of a transfer substrate and arising of dusts and burrs problems, etc. and a method of producing the optical recording medium are provided. An optical recording medium... Agent: Robert J. Depke Lewis T. Steadman

20080068971 - Optical pick-up apparatus and optical disc apparatus including the same: An optical pick-up apparatus having a plurality of light sources emitting light fluxes having different wavelengths from each other, an objective lens for focusing each of the light fluxes emitted from a plurality of light sources onto the information recording surface of the information recording medium, and an optical element... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080068972 - Optical pick-up apparatus and optical disc apparatus including the same: An optical pick-up apparatus having a plurality of light sources emitting light fluxes having different wavelengths from each other, an objective lens for focusing each of the light fluxes emitted from a plurality of light sources onto the information recording surface of the information recording medium, and an optical element... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080068970 - Optical-recording medium, method for producing the same, and method for recording and reproducing optical-recording: An object of the invention is to provide an optical-recording medium in which problems such as cross-write, i.e., signals are recorded wrongly on adjacent tracks, and cross-erase i.e., recording signals on adjacent tracks are erased wrongly, can be solved, and which enables high-density recording; a method for producing the optical-recording... Agent: Cooper & Dunham, LLP

20080068973 - Optical pickup: A multiple wavelength-adaptive optical pickup according to the present invention enables to obtain stable signals by suppressing displacement of optical intensity distribution at a light receiving section. When an incident angle of a central beam of a zero-dimensional beam of a beam reflected at an optical disc into a half... Agent: Osha Liang L.L.P.

20080068974 - Objective lens drive apparatus for use in optical pickup: An objective lens drive apparatus for use in an optical pickup includes a magnetic circuit including a magnet having at least three poles in a single side surface of the magnet, and a coil unit including a focus coil, a tracking coil and a tilt coil. The focus coil, the... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080068975 - Objective lens actuator and optical pickup device: A first objective lens and a second objective lens which are formed as separate bodies each other are held side by side by a lens holder. The lens holder includes a first lens receiving surface to receive a lower surface of peripheral portion of the first objective lens, and a... Agent: Morgan Lewis & Bockius LLP

20080068976 - Information recording medium: An information recording medium has a plurality of recording layers, one (L0 layer) of which has an identifier recording area (NBCA) containing an identifier for identifying the information recording medium. In the identification information recording area, a groove track (GT) is divided in the direction along the groove track by... Agent: Young & Thompson

20080068977 - Information storage medium and disk apparatus: According to one embodiment, an information storage medium has a substrate, a first recording layer containing an organic dye material, a first barrier layer, a spacer layer, a second recording layer, a second barrier layer, and a protective layer formed on the second barrier layer. The angle that the outer... Agent: Knobbe Martens Olson & Bear LLP

20080062825 - Optical head and optical disc device: In a three-beam optical head, a diffraction element 12 is divided in a radial direction of an optical disc into a first area 31, a second area 32 and a third area 33, wherein the second area 32 is further divided into a fourth area 321 and a fifth area... Agent: Wenderoth, Lind & Ponack L.L.P.

20080062824 - Optical head with a variable optical component: An optical head (10) using a variable optical component (10), which component comprises bendable nano-elements (3) that can be switched between a bent and non-bent state by means of a driver-field applied between electrodes (1, 2). In the bent state the nano-elements absorb radiation and therefore adapt the radiation intensity... Agent: Philips Intellectual Property & Standards

20080062827 - Optical pickup device and optical disk drive:

20080062828 - Disc drive: Since a disc vibrates in a natural mode at a predetermined rotation speed, a variation in a tilt of the disc relative to an optical head is caused. As a result, the read/write performance of a disc drive is deteriorated. The disc drive has a disc tilt database for recording... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080062829 - Method and apparatus for determining start of user data in one data block of optical disc by detecting sync patterns disposed between two data blocks: A first method for determining the start of user data in a data block on an optical disc is disclosed. The first method includes: setting a plurality of predetermined time intervals; detecting a first sync pattern and a second sync pattern; and utilizing one of the predetermined time intervals and... Agent: North America Intellectual Property Corporation

20080062840 - Method and apparatus for detecting optical disk type: A method to determine the diameter and shape of the loaded optical disk without any additional sensor. By accelerating a disk for a certain period of time and then monitoring the rotational speed before the spindle lock, the diameter and shape of the loaded optical disk is detected.... Agent: Greenblum & Bernstein, P.L.C

20080062841 - Recording/reproduction method for optical recording medium, recording condition determining method, recording method optical disk apparatus, program, and recording medium thereof: A recording/reproduction method for recording/reproducing data to/from an optical recording medium including a guiding groove and a recording layer is disclosed. The recording/reproduction method includes a step of irradiating a laser beam onto the optical recording medium by modulating at least one of a laser irradiation time and a laser... Agent: Dickstein Shapiro LLP

20080062823 - Device for storing, managing and/or retrieving data stored on data carriers, in particular on cd's: Device (2) for storing, managing and/or retrieving data stored on data carriers, in particular on CD's, comprising a set of plates (1) with recesses (3) for data carriers, situated one above another. The adjoining plates (1) are connected by shaped key joints (7,8), preferably in the form of a groove... Agent: Horst M. Kasper

20080062826 - Optical pickup unit and optical pickup device having same and information writing/reading device having same: An optical pickup device includes: a splitting section for splitting a beam; a light-receiving section for receiving the split beams. The light-receiving section includes: a tracking-use main light-receiving region and tracking-use sub light-receiving regions, and auxiliary light-receiving regions. Each of the auxiliary light-receiving regions receives only a light beam reflected... Agent: Edwards Angell Palmer & Dodge LLP

20080062830 - Optical recording medium and method for formatting the same with improved compatability and consistency: The invention relates to an apparatus for formatting an optical recording medium, the optical recording medium having a spare area for replacing a defective area and a defect management area for managing the defective area, the apparatus including a recording/reproducing part configured to format the optical recording medium in response... Agent: Birch Stewart Kolasch & Birch

20080062831 - Method for recording information, in particular audio signals, received via radio, in particular broadcast radio: A method for storing information, in particular audio signals, received via radio, in particular broadcast radio, the received information being written to a first memory, where the information stored in the first memory is overwritten by newly received information, preferably no later than when the memory capacity of the first... Agent: Kenyon & Kenyon LLP

20080062832 - Method and apparatus for establishing manufacturer-specific test writing parameters for writing of writable optical storage media: A method and apparatus for recording and/or reproducing data to and/or from a medium are discussed. According to an embodiment, the apparatus includes a detection unit configured to detect distinction information capable of distinguishing medium manufacturer; a storage unit configured to store reference writing parameter information, the reference writing parameter... Agent: Birch Stewart Kolasch & Birch

20080062833 - Optical information recording reproduction device: An optical information recording reproduction device is disclosed, in which aberration detection is stably performed, so that an excellent record grade can be achieved. An RF signal is subjected to differential operation along a time axis of the signal, the RF signal being obtained from reflected light including primary light... Agent: Knobbe Martens Olson & Bear LLP

20080062834 - Information recording medium, recording apparatus, reproduction apparatus, recording method and reproduction method: An information recording medium is provided that includes a data area for recording user data and a defect management area for recording a defect list for managing N number of defect areas existing in the data area, where N is an integer satisfying N≧0. The defect list includes two or... Agent: Mark D. Saralino (mei) Renner, Otto, Boisselle & Sklar, LLP

20080062835 - Optical disc having tracking polarity information, and apparatuses and methods for recording and reproducing user data on the same: 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... Agent: Stein, Mcewen & Bui, LLP

20080062836 - Write once disc allowing management of data area, method of managing the data area, and apparatus and method for reproducing data from write once disc: A write once disc allowing management of a data area, a method of managing the data area of the write once disc, an apparatus recording data on the write once disc, an apparatus and method of reproducing data from a write once disc. The write once disc, includes a lead-in... Agent: Stein, Mcewen & Bui, LLP

20080062837 - Tilt adjusting mechanism for objective lens: A tilt adjusting mechanism adjusts a tilt of at least one of a plurality of objective lenses so that they have the same inclination state. The tilt adjusting mechanism includes an aperture member to which an objective lens to be a target of the tilt adjustment is fixed, and a... Agent: Morgan Lewis & Bockius LLP

20080062838 - Materials for optical medium copy-protection transiently reacting to a reader beam: A method and system for providing copy-protected optical medium using transient optical state change security materials capable of changing optical state and software code to detect such change in optical state.... Agent: Kelley Drye & Warren LLP

20080062839 - Optical disc analysis system including related methods for biological and medical imaging: An optical disc system includes a photo detector circuit of an optical disc drive and a signal processing system. The photo detector circuit is configured to generate at least one information-carrying signal from an optical disc assembly. The signal processing system is coupled to the photo detector circuit to obtain... Agent: Knobbe Martens Olson & Bear LLP

20080062842 - Optical recording method and optical recording device: In a dye-type optical recording medium, a write strategy for use in recording is determined based on recommended write strategy parameters recorded on an optical disk (160) and the characteristics of the optical recording device, and recording is carried out on the optical disk (160) according to the determined write... Agent: Birch Stewart Kolasch & Birch

20080062843 - Mastering of an optical disc with a data pattern in the form of a metatrack having coplanar parallel sub-tracks: A method and a device for writing data marks to an optical disc or a master disc are disclosed, the data marks to be arranged along at least one metatrack, which is formed by a number of coplanar parallel sub-tracks. The method comprises a step of superposing a rotational motion... Agent: Philips Intellectual Property & Standards

20080062844 - Information recording device and method, and computer program: An information recording device can record a plurality of pieces of recording information, for instance, at different times, in an information recording medium provided by stacking first and second recording layers. A writing control element controls a writing element so that each piece of the information can be written over... Agent: Young & Thompson

20080062845 - Method of recording/reproducing digital data and apparatus for same: A digital data recording/reproducing method includes the steps of: interleaving data on a PI code for each PI code of a 208-row ECC block; and converting a short burst error into random errors by dispersing errors on the PI codes. Moreover, the digital data recording/reproducing method increases correction capability against... Agent: Townsend And Townsend And Crew, LLP

20080062846 - Optical reproducing apparatus and optical reproducing method: An optical reproducing apparatus and an optical reproducing method for safely viewing a reproduced image by preventing the reproduction beam from the light source from directly entering the eyes of a viewer depending on the visual position of the viewer when holographically recorded information in an optical recording medium, particularly... Agent: Sughrue Mion, PLLC

20080062847 - Optical reproducing apparatus and optical reproducing method: An optical reproducing apparatus and an optical reproducing method that can prevent unnecessary images that could transparently seen from backlight i.e. behind a reproduced image from being viewed to allow viewers to see the reproduced image clearly when holographically recorded information in an optical recording medium, particularly, a transmission type... Agent: Sughrue Mion, PLLC

20080062848 - Optical pickup device and optical disk apparatus using the same: An optical pickup device includes: a light source that emits a light beam; a divergence-angle converting lens that converts an angle of divergence of the light beam emitted from the light source and emits the light beam; and an object lens displaceable in a tracking direction that receives incidence of... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080062849 - Optical pick-up apparatus and optical disc apparatus including the same: An optical pick-up apparatus having a plurality of light sources emitting light fluxes having different wavelengths from each other, an objective lens for focusing each of the light fluxes emitted from a plurality of light sources onto the information recording surface of the information recording medium, and an optical element... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080062850 - Optical pickup and optical disc apparatus: In an optical pickup compatible with BD and HD DVD, when DPP method is used as a tracking error signal detection system for both BD and HD DVD, since the guide groove pitch of the optical disc differs between BD and HD DVD, when a diffraction grating for generation of... Agent: Townsend And Townsend And Crew, LLP

20080062851 - Optical disc apparatus and discriminating method for kind of objective lenses: An optical disc apparatus includes an amplitude obtaining portion receiving S shaped waveform information of focus error signal from a focus error signal processing portion to obtain amplitude of the S shaped waveform and a discriminating portion discriminating kind of objective lens disposed in a light path of an optical... Agent: Morgan Lewis & Bockius LLP

20080062852 - Multi-dimensional optical scanner: The present invention relates to an optical scanning device for reading and/or writing on a plurality of tracks on an optical storage medium (1), said scanning device comprising optical means (17) for focusing a plurality of beams, after being reflected from said medium, onto an observation plane (22), and for... Agent: Philips Intellectual Property & Standards

20080062853 - Methods for writing and reading information and devices based thereon: Memory devices and methods of storing and reading information are disclosed. Also disclosed are methods of storing information encoded with at least two polarization magnitudes and at least two polarization directions; wherein the polarization magnitudes provide a first channel for encoding information and the polarization directions provide a second channel... Agent: Rohm And Haas Company Patent Department

20080062854 - Disc recording medium, disc drive, and manufactuing method of optical disc: The present invention relates to an optical disc on which an information signal can be rewritten. Guide grooves (81a) for tracking control are formed on respective tracks of the rewritable area where an information signal can be rewritten. A recording layer (83) onto which an information signal is to be... Agent: Rader Fishman & Grauer PLLC

20080062855 - Apparatus for attaching a disk to a spindle of a spinstand, methods for attaching and detaching a disk to and from a spindle of a spinstand and a movable stage: In one arrangement, apparatus for attaching a disk to a spindle of a spinstand has a spindle adapter. The spindle adapter has a drawbar movably disposed within. The drawbar has a connector end that is reversibly connectable to the cap and has a piston that is connectable to a source... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20080056073 - Recording head: It is an objective that the optical loss and the number of optical components are reduced in an optical recording head using a near-field where a laser beam is guided from a light source to the tip of the head and a thermally assisted magnetic recording head. A structure where... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080056076 - Optical pickup device and optical disc reading device: The present invention discloses an optical pickup device comprising: a first objective lens focusing laser beam generated by a laser generator; a second objective lens focusing the laser beam with a focal length different from that of the first objective lens; a first lens housing portion having a first seat... Agent: Yokoi & Co., U.s.a., Inc.

20080056077 - Method of adjusting spherical aberration and focus offset and information recording/reproduction apparatus using the same: A method of adjusting spherical aberration correction and focus offset of a light beam comprises steps of: detecting a first approximate straight line indicating a first relationship between the spherical aberration correction and the focus offset according to a first evaluation index indicating a quality of cross-track signal; detecting a... Agent: Fitzpatrick Cella Harper & Scinto

20080056079 - Optical disc drive and method of controlling the same: An optical disc drive and a method of controlling the same. The optical disc drive includes: a pickup module to apply a laser beam to a surface of a record layer of an optical disc, and forming a focal point on the record-layer surface; and a servo controller to correct... Agent: Stanzione & Kim, LLP

20080056080 - Alignment feature for near-field transducers: An apparatus comprises a lens, an alignment feature positioned adjacent to a surface of the lens, a detector for producing an alignment signal in response to a portion of incident light reflected by the alignment feature and a portion of the incident light reflected by the surface adjacent to the... Agent: Pietragallo Gordon Alfano Bosick & Raspanti, LLP

20080056081 - Apparatus and method for generating tracking error signal: An apparatus and method for generating a tracking error signal (TES). A low level TES is prevented from being generated due to noise in an optical disk drive for reproducing a high-density multi-layered optical disk. The apparatus includes: an N-split optical reception element to receive light reflected by a disk... Agent: Stein, Mcewen & Bui, LLP

20080056082 - Write adjustment method: A write adjustment method adjusts recording power, recording time, and recording position of a recorder. The recorder includes a light detecting chip to receive a reflected light signal and generate a recording detection signal to a high pass filter. The high pass filter receives the recording detection signal and outputs... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080056084 - Method and system for improving the ability of player/recorder systems to read a disc during the startup procedure: In accordance with the invention, upon insertion of an optical disc into a player/recorder system, the system attempts to recognize the disc and read data from the disc. Any error causing failure of a startup procedure will be detected. If a reading error is detected, the disc is rotated by... Agent: Philips Intellectual Property & Standards

20080056086 - Laser driver circuit and optical disc device including the laser driver circuit: In order to compute a set value for a laser driver circuit for obtaining laser light having a predetermined irradiation power by using a calibration coefficient indicating manufacturing errors. In an optical disc device including a laser driver circuit according to the present invention, a laser diode emits laser light,... Agent: Knobbe Martens Olson & Bear LLP

20080056087 - Content transmitting apparatus and content receiving apparatus: A content transmitting apparatus and the like which execute copy control of content more securely than conventional, and can count copy number correctly according to the situation, even in the case where content transfer is interrupted are provided. The content reproducing apparatus 10 for transmitting content that is digital copyrighted... Agent: Mcdermott Will & Emery LLP

20080056091 - Multivalued information recording reproducing method: A method of recording multivalued information by writing, by using a photo spot, an information pit on a virtual cell that is set on a track of an optical information recording medium, while changing a width of the information pit in the direction of the track, and of reproducing the... Agent: Fitzpatrick Cella Harper & Scinto

20080056074 - Recording apparatus, reproduction apparatus, and file management method: A recording apparatus, a reproduction apparatus, and a file management method are disclosed wherein the operability in management of a large number of files recorded on a recording medium using an index file can be improved significantly further than ever. An index file is formed from a series of entries... Agent: Frommer Lawrence & Haug

20080056075 - Automatic music management methods and systems: Systems and methods of managing entertainment content on a computer jukebox are provided in which, in exemplary embodiments, a digital file is transferred from a data center to a temporary cache in a digital memory of the computer jukebox in response to a user selection and the file is transferred... Agent: Dickstein Shapiro LLP

20080056078 - High-frequency superimposing method and optical disk apparatus using it: An optical disk drive includes drive current generation unit for supplying a mark forming semiconductor laser drive current and a space forming semiconductor laser drive current; first high-frequency superimposition unit for superimposing a high-frequency component on the space forming semiconductor laser drive current; and high-frequency superimposition control unit for controlling... Agent: Mcdermott Will & Emery LLP

20080056083 - Information recording medium, recording apparatus, reproduction apparatus, recording method and reproduction method: An information recording medium is provided that includes a data area for recording user data and a defect management area for recording a defect list for managing N number of defect areas existing in the data area, where N is an integer satisfying N≧0. The defect list includes two or... Agent: Mark D. Saralino (mei) Renner, Otto, Boisselle & Sklar, LLP

20080056085 - Information reproducing/recording apparatus: The present invention provides an information reproducing/recording apparatus capable of executing tracking servo normally in short time at the time of loading an information recording medium. At the time of executing a tracking servo process on a BD (Blu-ray Disc)-R capable of recording information selectively on a land track or... Agent: Osha Liang L.L.P.

20080056089 - Generating optical contrast using thin layers: A recordable medium includes a recordable structure having a transmissivity with respect to a read beam that increases upon application of an energy. In some examples, the transmissivity of the recordable structure before and after application of the energy can be greater than 50%. In some examples, the recordable structure... Agent: Occhiuti Rohlicek & Tsao, LLP

20080056088 - Multiple recording structures for optical recording: A recordable medium includes a first recordable structure, a second recordable structure, and a spacer layer positioned between the first and second recordable structures. The first recordable structure has a transmissivity with respect to a read beam that increases upon application of a write power to the first recordable structure.... Agent: Occhiuti Rohlicek & Tsao, LLP

20080056090 - High-frequency superimposing method and optical disk apparatus using it: An optical disk drive includes drive current generation unit for supplying a mark forming semiconductor laser drive current and a space forming semiconductor laser drive current; first high-frequency superimposition unit for superimposing a high-frequency component on the space forming semiconductor laser drive current; and high-frequency superimposition control unit for controlling... Agent: Mcdermott Will & Emery LLP

20080056092 - High-density read-only optical disc, and optical disc apparatus and method using the same: A high-density read-only optical disc, and an optical disc apparatus and method using the same. The apparatus and method record data on a lead-in area of a high-density read-only optical disc such as a BD-ROM (Blu-ray disc ROM (Read Only Memory)) in the form of pre-pit strings associated with an... Agent: Harness, Dickey & Pierce, P.L.C

20080056094 - Information reproducing/recording device: The present invention aims to provide an information reproducing/recording device capable of enhancing the reliability of a focus jump. In the information reproducing/recording device in which the laser light emitted from a laser light source of an optical pickup is collected by an objective lens, irradiated on a multi-layered optical... Agent: Osha Liang L.L.P.

20080056095 - Multi-layered disc and multi-layered disc reproducing apparatus: A multi-layered disc (D1, D2, D3) is provided with a plurality of recording layers laminated with each other in a direction of a normal line of the recording layers, in each of which an information data recording area (2, 4) for recording information data and a control data recording area... Agent: Drinker Biddle & Reath (dc)

20080056093 - Optical disc and optical disc device: The invention aims to provide a recordable dual-layer optical disc which allows precise recording learning on both layers. A first information recording layer located further from the light incidence side includes a read-only control data area (304a), a first test area (306a), and a second test area (315a). A second... Agent: Wenderoth, Lind & Ponack L.L.P.

20080056096 - Optical disc and optical disc device: In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc... Agent: Birch Stewart Kolasch & Birch

20080056097 - Optical disc and optical disc device: In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc... Agent: Birch Stewart Kolasch & Birch

20080056098 - Optical disc and optical disc device: In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc... Agent: Birch Stewart Kolasch & Birch

20080056099 - Method and device for recording soundtracks onto film: The invention relates to the recording of soundtracks onto analogue cinema film, in particular the recording of digital created and/or digital/electronically stored representations of soundtracks onto film. The method according to the invention for comprises converting sound data from the digital soundtracks to sound image data, modulating light based on... Agent: Finnegan Henderson Farabow Garrett&dunnce

20080056100 - Optical pick-up apparatus and optical disc apparatus including the same: An optical pick-up apparatus of the invention is structured, for example, such as to have a plurality of light sources emitting light fluxes having different wavelengths from each other, an objective lens for focusing each of the light fluxes emitted from a plurality of light sources onto the information recording... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080056101 - Optical pickup: An optical pickup includes a first objective lens, a second objective lens having a numerical aperture different from that of the first objective lens, and an objective lens holder. The first objective lens is attached to the objective lens holder via a spacer that has a cylindrical shape and is... Agent: Morgan Lewis & Bockius LLP

20080056102 - Optical pickup apparatus: An optical pickup apparatus includes a first objective lens having a low numerical aperture (NA) suitable for a low-density recording medium, a second objective lens having a high NA suitable for a high-density recording medium, a first light source to generate a short-wavelength optical signal to use the first and... Agent: Stanzione & Kim, LLP

20080056103 - Photodetector and optical pickup apparatus: A photodetector comprising: a first light-receiving surface configured to receive reflected light of zero-order light generated based on a laser beam, from one information recording layer of a multilayer optical disc; a second light-receiving surface that is adjacent to the first light-receiving surface with a predetermined interval, the second light-receiving... Agent: Fish & Richardson P.C.

20080056104 - Fluid dynamic-pressure bearing device and spindle motor: A fluid dynamic-pressure bearing includes a rotatable shaft, a hub, a fixed portion, and a lubricating liquid. The hub includes a hub thrust bearing surface extending from the shaft outwardly in a radial direction and an annular surface. The fixed portion includes a fixed-portion upper thrust bearing surface facing the... Agent: Volentine & Whitt PLLC

20080056105 - Single thrust bearing fluid dynamic bearing motor: A typical dynamic bearing design comprises a ring shaped or circular thrust plate mounted at or near the end of a shaft, the shaft defining together with a surrounding sleeve a journal bearing by providing grooves on only one of the two surfaces facing the gap between the shaft and... Agent: Seagate Technology LLC C/o Novak Druce & Quigg LLP

20080056106 - Data recording and reproducing apparatus, data recording and reproducing method, and computer program: A recording medium has a user-data zone in which a plurality of fragments can be reserved by recording the start and end addresses of the fragments, and a management information zone in which management information having recorded-area-indicator (RAI) information indicating whether each of partial areas into which the user-data zone... Agent: Sonnenschein Nath & Rosenthal LLP

20080056107 - 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: Connolly Bove Lodge & Hutz LLP

20080056108 - 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: Connolly Bove Lodge & Hutz LLP

20080056109 - 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: Connolly Bove Lodge & Hutz LLP

20080056110 - 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: Connolly Bove Lodge & Hutz LLP

20080056112 - 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: Connolly Bove Lodge & Hutz LLP

20080056113 - 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: Connolly Bove Lodge & Hutz LLP

20080056111 - Optical data storage medium and manufacturing methods therefor: An optical data storage medium is described. It comprises at least a substrate, having a surface with data stored in pits that are embossed into the substrate and in spaces separating the pits, a reflective layer covering the surface and having an intrinsic optical reflectivity R at a wavelength λ,... Agent: Philips Intellectual Property & Standards

20080056114 - Optical disc, optical disc device, and optical disc reproducing method: According to one embodiment, disclosed is an optical disc in which information is recorded by a pit pattern and which includes a reflection membrane. When concavities and convexities of the pits are opposite to those of a usual case, the reflection membrane is formed on the pits in the form... Agent: Knobbe Martens Olson & Bear LLP