Dynamic information storage or retrieval inventions 07/07

20070171777 - Objective lens actuator and optical pickup device having the same: An objective lens actuator is provided with an objective lens holder and an anti-collision member disposed at the upper portion of the objective lens holder for preventing a collision between the optical recording medium and the objective lens, and the anti-collision member includes a fixing portion for fixing to the... Agent: Morgan Lewis & Bockius LLP

20070171776 - Objective lens driver, method of manufacturing objective lens driver, optical pickup device and optical disk apparatus: An objective lens driver includes: a lens holder, for holding an objective lens; a first focusing coil, for moving one end of the lens holder in the focusing direction; a second focusing coil, for moving the other end of the lens holder in the focusing direction; a tracking coil assembly,... Agent: Stevens, Davis, Miller & Mosher, LLP

20070171775 - Objective lens driving device: An objective lens driving device include: a lens holder, which holds an objective lens that converges light of a light source so that information is recorded or reproduced; and bar-like elastic supporting wires, which connect the lens holder to a wire supporting base. The objective lens driving device is arranged... Agent: Morrison & Foerster LLP

20070171781 - Optical disk apparatus, focus control method and optical disk: The present invention provides an optical disk apparatus capable of stably performing a layer jump on an optical disk having plural recording layers and non-uniform interlayer distances. In an optical disk with at least three recording layers and non-uniform interlayer distances between respective recording layers, if a layer jump is... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070171784 - Focus layer jump control circuits and methods of controlling focus layer jumps used by the same: A focus layer jump control circuit may include a signal processing block that converts an analog focus error (FE) signal into a digital FE signal, in response to the analog FE signal and a FE selection signal; a layer jump control block that outputs a second control signal, in response... Agent: Harness, Dickey & Pierce, P.L.C

20070171787 - Optical disc drive and recording method: An optical disc drive includes a memory stored a write strategy, a converting unit which converts a recording data into a recording pulse based on the write strategy stored in the memory, an inspection unit which inspects a state of the recording data from a reproducing signal, a recording controller... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070171795 - Optical recording medium recording apparatus: Disclosed herein is an optical recording medium recording apparatus, includes: an optical pickup section configured to irradiate laser light on an optical recording medium to perform recording or reproduction of information on or from the optical recording medium; a control section configured to control the optical pickup section; and a... Agent: Rader Fishman & Grauer PLLC

20070171796 - Recording and reproducing apparatus and defect determination method: A recording and reproducing apparatus for recording data to and reproducing data from a hologram recording medium is provided. The recording and reproducing apparatus includes a light emitting unit for emitting light to be directed to the recording medium set at a predetermined position, a spatial light modulation unit for... Agent: Bell, Boyd & Lloyd, LLP

20070171797 - Information recording/reproducing apparatus and updating method of management information for optical disk medium: When user data fails to be recorded in an address of a user data area, the same data is recorded in an address of a spare area. Information indicating that the data for the address of the user data area is recorded in the address of the spare area is... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070171800 - Method and apparatus of reproducing multilevel information: In a method of reproducing multilevel information, cell-boundary values are obtained. Each of the cell-boundary values is obtained when the center of a light spot comes at a boundary between adjacent cells. Then, on the basis of the cell-boundary values and prestored reference values for the cell-boundary value, cell-boundary-value metrics... Agent: Fitzpatrick Cella Harper & Scinto

20070171772 - Optical disc: An optical disc according to the present invention includes a plurality of recording layers; a receiving section for receiving, from outside an optical disc, a switching instruction for switching a target layer to be targeted for recording or reproducing information among the plurality of the recording layers; and a switching... Agent: Mark D. Saralino (mei) Renner, Otto, Boisselle & Sklar, LLP

20070171773 - Optical disc and optical disc recording/reproducing device technical field: An optical disc wherein recording can be performed on a label plane even only by an optical disc recording/reproducing device using a direct-current motor as a power supply of an optical pickup in a traverse direction. The optical disc is provided with a visible information recording layer (207), which can... Agent: Steptoe & Johnson LLP

20070171774 - Adjustable optical pickup actuator: An adjustable optical actuator with tilting function is provided, including two focusing coils, a tilting coil, and two tracking coils. A lens holder is hanged on a yoke base. The focusing coils are placed on the two sides of the lens holder, and the current in the focusing coils is... Agent: Lin & Associates Intellectual Property

20070171778 - Optical recording/reproducing apparatus, optical pickup, and tracking error detecting method: An optical recording/reproducing apparatus includes an optical pickup and a control section. The optical pickup includes: a detecting section; an optical system that radiates light from a light source onto an optical recording medium as near-field light by a condenser lens having a numerical aperture of 1 or more, and... Agent: Rader Fishman & Grauer PLLC

20070171779 - Apparatus and method for playback of optical recording media: The present invention relates to an apparatus for reading from and/or writing to optical recording media capable of playback of an optical recording medium based on one single focus search cycle. The apparatus distinguishes between the types of optical recording media on the basis of the focus error signal and... Agent: Joseph J. Laks, Vice President Thomson Licensing LLC

20070171780 - Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit: An optical disk unit of this invention includes a defocus detecting system for detecting a defocus of an objective lens, a thickness unevenness detecting system for detecting a thickness unevenness of a transparent resin layer provided nearest the objective lens of a recording medium, and a thickness unevenness correcting mechanism... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20070171782 - Optical disk discrimination method and optical disk device: The invention provides an optical disk device that has a laser unit including a first objective lens and a second objective lens. A numerical aperture of the first objective lens is different from a numerical aperture of the second objective lens. The optical disk device has a first focus driver... Agent: Stevens, Davis, Miller & Mosher, LLP

20070171783 - Servo position adjustment method and servo position adjustment device: It is an object of the present invention to provide a method for absorbing individual variance between optical disc devices or optical discs, and for determining the optimal servo adjustment position even with optical discs in which no convex/concave pit string is present. When mounting a disc, servo position adjustment... Agent: Wenderoth, Lind & Ponack L.L.P.

20070171786 - Optical pickup apparatus and optical disk apparatus: An optical pickup includes: a light source for an optical disk; a beam splitter for splitting into a main and sub beams; and a photo-detector for sensing the main and sub beams reflected from the disk and outputting a signal corresponding to the sensed beams; wherein the splitter generates two... Agent: Frommer Lawrence & Haug LLP

20070171785 - Optical reader/writer with dedicated focus tracking beam: The present invention relates to an optical reader for a two dimensional storage disc, comprising means (21, 22, 14, 15) for generating a plurality of laser beams and projecting said beams onto a rotating disc, means (24, 25, 26) for detecting the beams after being diffracted by the disc, and... Agent: Philips Intellectual Property & Standards

20070171788 - Audio data reproducing method and program therefor: Regarding first and second audio data to be reproduced simultaneously within a certain time period, a computer which has a storage device records the first audio data to the storage device within the period while at the same time reproducing only the second audio data, and, after having reproduced the... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070171789 - Data storage medium and storage device: A data storage medium includes a data area used for storing data, an address area used for identifying the data area, a first mark that is formed in the address area and represents a bit string corresponding to an address, and a second mark that is formed in a vicinity... Agent: Greer, Burns & Crain

20070171790 - Method of recording control information on a recording medium, recording medium, and apparatus thereof: A method for recording control information on a recording medium. The method includes generating control information for controlling recording/reproducing data on/from the recording medium. The control information includes a first speed information indicating a maximum recording speed, a second speed information indicating a minimum recording speed, and a third speed... Agent: Harness, Dickey & Pierce, P.L.C

20070171791 - Method of recording data on a multi-layer recording medium, recording medium, and apparatus thereof: A method for recording data on a recording medium having one or more recording layers. The method includes reading control information having a plurality of control information units for controlling recording/reproducing of data from the recording medium. The control information unit includes an identifier of the recording layer to which... Agent: Harness, Dickey & Pierce, P.L.C

20070171792 - Method and apparatus for recording data at accurate location on recording medium: An information recording device includes a buffer memory, a buffer management unit and a phase adjusting unit. The buffer memory temporarily stores data to be written in a recording medium. The buffer management unit starts writing the data in the recording medium if a size of the data stored in... Agent: Mark J. Thronson Dickstein Shapiro Morin & Oshinsky LLP

20070171793 - Method and device for scanning a disc-shaped information storage medium: A method (100; 200; 300; 400; 500) for scanning a track of a disc-shaped storage medium (2) comprises the steps of: receiving (101; 201; 301; 401; 501) at least one scanning command; calculating (102, 103; 211, 212; 311, 313; 411; 511) energy consumption estimates at different scanning mode settings (CAV;... Agent: Philips Intellectual Property & Standards

20070171794 - Recording method, recording apparatus, and storage medium: The present invention is related to a recording method, a recording apparatus, and a storage medium which determine an optimum recording power value by performing test writing on a test zone of a recording medium and record information on the recording medium with the determined optimum recording power, wherein the... Agent: Dickstein Shapiro LLP

20070171798 - Optical disk device: An optical disk device that has a tilt correction unit for performing tilt correction to incline the optical axis of laser light based on a tilt between the recording layer of an optical disk and the optical axis of said laser light. The tilt is detected when the optical disk... Agent: Stevens, Davis, Miller & Mosher, LLP

20070171799 - System and method for determining groove/land switching points of an optical disc utilizing a motor rotating signal and original switching points: A system for determining groove/land (G/L) switching points of an optical disc is disclosed. The system includes a motor rotating signal generating apparatus, an detection apparatus, and a G/L switching point generating apparatus. The motor rotating signal generating apparatus is for sensing the rotation of a motor to generate a... Agent: North America Intellectual Property Corporation

20070171801 - Apparatus and method for manufacturing optical disks, apparatus and method for recording data on optical disks, apparatus and method for reproducing data from optical disks, and optical disk formed with pit strings and mark strings: Described herewith is an optical disk manufacturing apparatus for reading recorded digital data from an optical disk, comprising an encryption unit (22, 23) for encrypting entered digital data according to a plurality of key information; an optical disk substrate manufacturing unit 2 for manufacturing an optical disk substrate 4 on... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070171802 - Optical disc apparatus and method for adjusting the same: An adjusting method includes a preparing step for obtaining an applied voltage value and a phase difference in a liquid crystal element in the case where an optimal reproduced signal is obtained for each of a plurality of types of optical recording media by using a reference optical disc apparatus,... Agent: Morgan Lewis & Bockius LLP

20070171803 - Optical pickup device having chromatic aberration correction lens: An optical pickup device includes a light source to emit light, an objective lens to focus the light on a recording medium to form a light spot, an optical path changer on an optical path between the light source and the objective lens to change the path of incident light,... Agent: Stein, Mcewen & Bui, LLP

20070171805 - Optical disc apparatus and laser power control method: In laser power control, optical and electronic components are subjected to correction on their temperature characteristics to stabilize write/read characteristics. The present invention comprises a power detector which detects the power of laser light generated by a pickup, a temperature detector which detects the temperature in the pickup, a calculating... Agent: Townsend And Townsend And Crew, LLP

20070171804 - Power control device and method of multi base powers for optical disk drive: A power control device of multi base powers is provided for an optical read/write module of an optical disk drive. The optical read/write module generates a power feedback signal and a temperature signal. The power control device includes a base power selecting module, a current compensating module, a current computing... Agent: Bacon & Thomas, PLLC

20070171806 - Optical head device and disk drive device: An optical head device may include a frame type of laser beam emitting element provided with a heat radiating fin on which a laser chip is mounted, a device frame on which the laser beam emitting element, a light receiving element and an optical system are mounted, and a heat... Agent: Cantor Colburn, LLP

20070171807 - Information recording method and information recording apparatus: To provide a new recording method and recording apparatus with respect to an optical recording medium, the recording method and recording apparatus being able to deal with a high density of an optical recording medium of recent years. Recording of a recording track and a prepit is carried out by... Agent: Sughrue Mion, PLLC

20070165494 - Light delivery module, method of fabricating the same and heat-assisted magnetic recording head using the light delivery module: A light delivery module, a method of fabricating the same, a heat-assisted magnetic recording head using the light delivery module are provided. The light delivery module delivers light emitted from a light source. The light delivery module includes an optical waveguide having an inclined plane of an angle Φ with... Agent: Sughrue Mion, PLLC

20070165495 - Heat assisted magnetic recording head: A heat assisted magnetic recording (HAMR) head is provided. The HAMR head is mounted in a slider having an ABS that faces a recording medium and illuminates light on the local area of the recording medium, and includes a recording unit that performs recording and a near field light emitter... Agent: Sughrue Mion, PLLC

20070165497 - Reading apparatus, reading method, program, and program recording medium: A reading apparatus and method for reading data from a digital versatile disc includes a specification section configured to specify a predetermined position of content. A controller generates information indicating a predetermined portion from a position specified by the specification section. A storage section reads the predetermined portion from the... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070165504 - Surface inspection by amplitude modulated specular light detection: An apparatus for detecting defects on a disk surface includes a light source that generates a light beam and a beamsplitter that splits the light beam into a first light beam portion and a second light beam portion. The first light beam portion illuminates the surface of the disk and... Agent: Foley & Lardner

20070165503 - Apparatus and method for identifying optical disc type: A method of identifying a type of a disc includes steps of: obtaining a first address of a first position on the disc; moving a pick-up unit to a second position of the disc; obtaining a second address of the second position; calculating a difference between the first address and... Agent: North America Intellectual Property Corporation

20070165491 - Sound recording device for use in vehicles: A vehicle on-board sound recording device includes a carrier with a sound recording module. The sound recording module includes a microprocessor, a memory, a microphone, a mini speaker, an indicator unit and a plurality of operation buttons. The microprocessor is used as an operation control center with a built-in compress... Agent: Cooper & Dunham, LLP

20070165492 - Recording type optical disc apparatus and optical disc medium: An optical disc apparatus includes an optical head configured to irradiate a light beam to an optical disc medium to record and reproduce data, wherein the optical disc medium has a record track which is divided into an inner circumferential control data recording area, a user data recording area and... Agent: Paul J. Esatto, Jr. Scully, Scott, Murphy & Presser

20070165493 - Method, apparatus and record carrier with average-runlength preserving code for improved readout parameter control: The present invention relates to a method and apparatus for controlling at least one readout parameter of a magneto-optical domain expansion recording medium. An average detected runlength of the reading signal is monitored, and an error signal is generated on the basis of a comparison of the monitoring result with... Agent: Philips Intellectual Property & Standards

20070165496 - System for duplication of data onto disks: A system for duplication of data onto disks includes a housing, a drawer device, a transport mechanism, a set of disk holders, an arm and a control device. The housing includes a printing device and a set of copy units. The transport mechanism is connected to the arm for moving... Agent: Banger Shia

20070165498 - Information reproducing apparatus and information reproducing method: According to one embodiment, an information reproducing apparatus and method which is able to determine the type of and the standard for a disc on the basis of predetermined priorities, includes an optical head including a light source unit which outputs either first laser light or second laser light having... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070165499 - Motor transfer rate calibrated jumping: An optical disc drive scans tracks on a record carrier via a beam of radiation (24) from a head (22). The head is positioned on a selected track by a tracking system. A motor (40) moves the head transverse to the tracks in dependence on a position signal, which is... Agent: Philips Intellectual Property & Standards

20070165500 - Optical pickup, optical disc drive employing it, and its control method: The present invention is directed to an optical pick-up device in which two object lenses are mounted to optimally correct comatic aberration with respect to the respective object lenses, which comprises: a first optical system for converging, by a first object lens (31), either one of light beams having first,... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070165502 - Method of recording data on a multi-layer recording medium, recording medium, and apparatus thereof: A method for recording data on a recording medium having one or more recording layers. The method includes reading control information including a plurality of control information units for controlling recording/reproducing of data from the recording medium. The control information unit includes a recording speed, an identifier of the recording... Agent: Harness, Dickey & Pierce, P.L.C

20070165501 - Recording medium, recording apparatus, and reading apparatus: In a recording material, physical characteristic information of the recording medium, and more specifically, material information representing the material of the disc, is recorded. Accordingly, a recording apparatus and a reading apparatus easily and accurately determine the physical characteristics of the disc, thereby making it possible to provide suitable setting... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070165505 - Information playback apparatus and recording medium: According to one embodiment, an information playback apparatus which plays back content to be played back recorded on a recording medium, and displays the content on a display unit, includes a plurality of specific function keys which accept an execution request for each predetermined function in the information playback apparatus,... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070165508 - Apparatus and method for manufacturing optical disks, apparatus and method for recording data on optical disks, apparatus and method for reproducing data from optical disks, and optical disks, and optical disk formed with pit strings and mark strings: Described herewith is an optical disk manufacturing apparatus for reading recorded digital data from an optical disk, comprising an encryption unit (22, 23) for encrypting entered digital data according to a plurality of key information; an optical disk substrate manufacturing unit 2 for manufacturing an optical disk substrate 4 on... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070165507 - Method and apparatus for control of a write signal in an optical disc system: The present invention provides for an apparatus and method of controlling writing a signal to an optical disc in an optical disk system and including the step of generating a feedback signal to dynamically tune the signal output from a laser source, and including generating a plurality of timing signals... Agent: Philips Electronics North America Corporation Intellectual Property & Standards

20070165506 - Method and device for optical recording onto optical disc medium: There is provided an optical recording method for directing a recording pulse train to an optical disc medium to form marks thereon and for recording information as information about the edge positions of said marks and the spaces between marks, the recording pulse train having been created by modulating laser... Agent: Wenderoth, Lind & Ponack L.L.P.

20070165509 - Prism optical system and image pickup apparatus: e

20070165510 - Optical disc apparatus, optical pickup apparatus, and method for reducing astigmatism: An optical disc apparatus includes a light source that emits a laser beam; a collimator lens arranged on an optical axis of the emitted laser beam; a upward directing prism that changes the direction of the optical axis of the laser beam output from the collimator lens by approximately 90°,... Agent: Rader Fishman & Grauer PLLC

20070165511 - Signal processing method and optical pickup for keeping available information during high speed optical recording: A signal processing method and an optical pickup are capable of reducing signal distortion. Before being transmitted over a flexible cable to an optical disk drive controller, a low-pass filtering process is performed over the light detection signals or their arithmetic results in the optical pickup to eliminate high frequency... Agent: Hershkovitz & Associates

20070165512 - Information processing apparatus: For information recording, a structure for supporting a medium component or a probe-installed cantilever array component while regulating relative positions thereof is provided. A moving component includes a plurality of first electrodes or magnetic poles arranged at three or more spots thereof, and disposed between two fixed components. The two... Agent: Crowell & Moring LLP Intellectual Property Group

20070165513 - Storage device having a probe with a tip to form a groove in a storage medium: A storage device comprises a probe having a tip. The storage device also comprises a storage medium, with the tip of the probe to form the groove in the storage medium. The probe tip interacts with a surface of the groove to store and read data.... Agent: Hewlett Packard Company

20070159933 - Optical pickup: An optical pickup that improves recording and reproducing performances on a disc without increasing the cost includes first and second magnets. The first magnet is placed on protrusions provided to a first wall portion of a base of an actuator portion. Both end portions of the bottom surface of the... Agent: Morgan Lewis & Bockius LLP

20070159935 - Height-determining method of an elevating device for a disc changer: A height-determining method of an elevating device comprises following steps. Firstly, the disc changer determines whether a disc storage cartridge is inserted into the disc changer or not. Secondly, the CPU resets the elevating device in the case that the disc storage cartridge is inserted into the disc changer. Then,... Agent: Birch Stewart Kolasch & Birch

20070159947 - Optical recording apparatus, optical recording method and optical storage medium: First identification data and second identification data are read out from a phase-change optical storage medium having a light-incident surface through which a light beam is to be incident and at least a first film-laminated layer structure and a second film-laminated layer structure provided over the surface in which the... Agent: Renner, Kenner, Greive, Bobak, Taylor & Weber

20070159932 - Optical head device: A broadband phase plate comprising two phase plates 9A and 9B laminated with e.g. an adhesive agent so that their optical axes are crossed, wherein provided that wavelengths of linearly polarized incident light beams are λ1, λ2 and λ3 (λ1<λ2<λ3), at least one or both of the two phase plates... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070159934 - Method for providing jukebox service using network: In the prior art, there is a limitation in providing services, such as a jukebox service, using a network, such as the Internet. The jukebox service provision method of the present invention uses a jukebox terminal (160) provided with an RF transmission means (165). The jukebox terminal (160) accesses a... Agent: Intellectual Property Law Group LLP

20070159936 - Optical head unit and optical disc apparatus: According to one embodiment, an optical head unit according to an embodiment of the invention, a reflected beam guided to a detection area of a photodetector is changed in the image forming characteristic by a liquid crystal element, which is placed between an object lens and a collimator lens, and... Agent: Knobbe Martens Olson & Bear LLP

20070159938 - Clock reproducing apparatus: A clock reproducing apparatus includes a clock reproducing circuit having: a gated oscillator having an oscillating circuit of two routes; and a frequency control circuit for comparing a phase of an output of the gated oscillator with a phase of a reference clock, and supplying a phase control signal to... Agent: Sughrue-265550

20070159937 - Method and apparatus for measuring the depth of a data record layer in an information record medium: Apparatus and method for measuring the depth of data record layers of an optical storage disc having a cover layer of thickness d, an entrance surface (S), and, for example, a first data layer (L0), a second data layer (L1) and a third data layer (L2). The optical apparatus comprises... Agent: Philips Intellectual Property & Standards

20070159939 - Repetitive control device and optical disc device: In a repetitive control device used for processing a servo signal, a memory (7) is used as a delay element for a filter (6), and a filtering process by the filter (6) is carried out using a clock signal that is an integral multiple of an operation frequency of a... Agent: Mcdermott Will & Emery LLP

20070159940 - Drive and method for simulating the insertion of a new record: The present invention relates to a drive (2) for use in a computer or a reproduction device for accessing a record carrier. According to the invention via a specific action, supervised by the drive (2), the drive mimics the presence of a disc by sending a disc insertion message to... Agent: Philips Intellectual Property & Standards

20070159941 - Information recording medium, information reading apparastus and information recording apparatus: In an information recording medium, positions of pits are modulated in a direction intersecting a direction of reading of pits, so that a predetermined information is recorded. In this information recording medium, the whole of the predetermined information or a part of the predetermined information is randomized through the used... Agent: Drinker Biddle & Reath (dc)

20070159942 - Optical disc recording method and optical disc: A recording method for an optical disc having at least three recording layers (11, 12, 13, 14), in which test recording areas are formed in the odd-numbered recording layers (11, 13) and the even-numbered recording layers (12, 14) in positions that are mutually non-overlapping in the thickness direction of the... Agent: Birch Stewart Kolasch & Birch

20070159943 - Recording apparatus, recording method and recording program: A recording apparatus that records data to an optical disc is disclosed. The recording apparatus includes a determination section that determines, when the optical disc is inserted, whether or not the recording condition information has been copied and recorded in the data recording area, a reading section that reads the... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20070159944 - 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: Mark D. Saralino (mei) Renner, Otto, Boisselle & Sklar, LLP

20070159945 - Rewritable optical recording medium and optical recording method: A rewritable optical recording medium includes a substrate and a phase-change type recording layer. A portion in a crystalline state corresponds to an unrecorded or erased state, and a portion in an amorphous state correspond to a recorded state, to record EFM modulated information by forming amorphous marks by irradiating... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070159946 - Apparatus and method for optical information recording and reproducing: A recording condition on a media is optimized by introducing a new evaluation index. An apparatus for optical information recording and reproducing includes: a measurement means for recording codes including a specific code in a medium for optical information recording and reproducing, reproducing the codes from the medium for optical... Agent: Knobbe Martens Olson & Bear LLP

20070159948 - Threshold crossing timing recovery for high capacity optical disc systems: The invention relates to a method of providing timing error information in optical systems, especially for reading high capacity optical discs, i.e. optical discs with a capacity of about 27 GB or above. At these capacities current threshold crossing timing recovery does not perform well and even becomes unfeasible due... Agent: Philips Intellectual Property & Standards

20070159949 - Method and apparatus for overwriting data on recording-medium and the recording medium: In one embodiment, the recording medium includes a user data area on which one or more recording ranges are allocated and a management area. The method of recording on the recording medium includes receiving an overwriting command to record data on a recorded area of a recording range. Each recording... Agent: Harness, Dickey & Pierce, P.L.C

20070159950 - Optical disc apparatus switching focus point between layers: A focus jump technique enables focus control on recording layers of a disc in such a manner that its effect is not absorbed by disturbance or a variation in the movement speed of an objective lens. The technique involves monitoring level of a focus error signal and rejecting noise from... Agent: Mcdermott Will & Emery LLP

20070159951 - Reproducing apparatus, and method of adjusting spherical aberration correction and focus bias: A reproducing apparatus includes a head unit operable to direct a laser light beam onto a recording medium, the head unit having a focus servo mechanism and a spherical aberration correction mechanism for laser light; an evaluation signal generating unit operable to generate an evaluation signal serving as an index... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20070159952 - Objective optical element and optical pickup apparatus: An objective optical element of an optical pickup apparatus has a magnification m1 satisfying the following formula for a light flux of the wavelength λ1:−1/7≦m1≦−1/25 and |m1 |<|M1, where M1 is an optical system magnification from the first light source to the first optical information recording medium for a light... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070159953 - Optical disc apparatus: An optical disc apparatus includes a liquid crystal driver, a laser driver, a storage portion, and a control portion for controlling them, the storage portion stores a correction table of current to be supplied to a laser beam source with a parameter of a voltage to be applied to a... Agent: Morgan Lewis & Bockius LLP

20070159954 - Laser oscillation element and optical pickup device: In a light-emitting section (2) for emitting semiconductor laser for CD (4) and semiconductor laser for DVD (5), a radiation angle width θ2 of the DVD semiconductor laser (5) is at least 1.3 times a radiation angle width θ1 of the CD semiconductor laser (4), said radiation angle width being... Agent: Edwards Angell Palmer & Dodge LLP

20070159955 - Optical disk with wobbled tracks and apparatus using this optical disc: Address information is formed by M wobbles (integer M is the number of wobble waves) per bit as a basic unit, and is NRZ-recorded. Also, a sync signal used in sync detection of the address information is formed by N wobbles per bit as a basic unit (integer N is... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070159956 - Optical disk with wobbled tracks and apparatus using this optical disc: Address information is formed by M wobbles (integer M is the number of wobble waves) per bit as a basic unit, and is NRZ-recorded. Also, a sync signal used in sync detection of the address information is formed by N wobbles per bit as a basic unit (integer N is... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070153658 - System and method for measuring vibration characteristics of optical disk drive: A vibration measuring system is used for measuring vibration characteristics of an optical disk drive. The vibration measuring system includes a command setting unit, a command sending unit, and a signal receiving unit. The command setting unit is used for setting a measure command. The command sending unit is used... Agent: North America Intellectual Property Corporation

20070153642 - Recording pole for heat assisted magnetic recording: A magnetic recording device is provided according to the present invention for magnetic recording on a recording medium. The magnetic recording device includes a planar waveguide having a propagation axis. The planar waveguide allows light received thereby to propagate along the propagation axis. The magnetic recording device further includes a... Agent: Bryan H. Opalko, Esquire Buchanan Ingersoll & Rooney PC

20070153643 - Data structure for control information on data storage media: A data storage medium includes a data structure, called a disk control block, used for administration and control information for the data storage medium. One medium may contain multiple different disk control blocks, each addressing a different function. Each disk control block includes a control block identifier that specifies the... Agent: Hewlett Packard Company

20070153644 - Device and method for focusing a laser light beam: A device for focusing a laser light beam includes an emission source of a laser light beam along an optical emission path, first focusing means of the laser light beam in a focusing point (F) located at a focusing distance (D), means for adjusting the position of the focusing point... Agent: Duane Morris, LLPIPDepartment

20070153645 - Optical pickup, optical disc device and method for manufacturing optical pickup: An optical pickup is provided which is capable of minimizing an astigmatism thereof with a simple configuration. The optical pickup 6 includes a collimate lens 16 for transferring optical beams outputted from a laser diode 11 to parallel light, and an objective lens 18 for collecting the optical beams transferred... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070153646 - Optical recording apparatus with drawing capability of visible image on disk face: A system and method of drawing a visible image on an optical disk are provided. The optical disk is rotated while a optical pickup irradiates a laser beam onto the optical disk to draw the visible image on the optical disk. The rotating state of the optical disk is detected.... Agent: Crowell & Moring LLP Intellectual Property Group

20070153647 - Optical pickup, optical disc apparatus, and radial tilt detection method: According to one embodiment, an optical pick up apparatus according to an embodiment of the invention has an object lens which captures a light beam reflected on a recording surface of an optical disc, a polarization control element which divides a light beam captured by the object lens into a... Agent: Knobbe Martens Olson & Bear LLP

20070153650 - Information recording medium, recording apparatus and method for an information recording medium, reproducing apparatus and method for an information recording medium computer program for controlling record or reproduction, and data structure including co: An information recording medium (100) is provided with: a user data area (108) for recording therein record data; a plurality of temporary defect management areas (104, 105) for temporarily recording therein defect management information (120) which is a basis of defect management for a defect in the data area; and... Agent: Young & Thompson

20070153651 - Optical storage apparatus with dynamic rotational speed control by monitoring storage status of buffer memory and related method thereof: An optical storage apparatus for reproducing data from an optical medium is disclosed. The optical storage apparatus includes a rotation unit for rotating the optical medium at a rotational speed; a buffer memory for buffering data to be transmitted to a host; a data accessing unit, coupled to the buffer... Agent: North America Intellectual Property Corporation

20070153652 - Recording and/or reproducing methods and apparatuses: In one embodiment the method includes reading speed information from a specific area of the recording medium. The speed information includes one or more speed flags to indicate whether a corresponding speed is applicable to the recording medium. A first speed flag for a first recording speed lower than a... Agent: Clark & Elbing LLP

20070153653 - Recording and/or reproducing methods and appratuses: One embodiment includes providing control information, wherein the control information includes one or more recording speed flags indicating respectively whether one or more recording speeds are applicable to each of the recording layers. The control information also includes write strategy information depending on each of the applicable recording speeds, and... Agent: Clark & Elbing LLP

20070153654 - Optical disk apparatus and control method thereof: An optical disk apparatus and control method having a rotation driver configured to rotationally drive an optical disk, a laser diode configured to emit a laser light to be irradiated upon a recording surface of the optical disk, for recording or reproducing information onto the optical disk, and a monitor... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070153648 - Information storage medium storing different read power information: A hybrid information storage medium includes a lead-in area storing basic information regarding the information storage medium, a lead-out area indicating an end of the information storage medium, and a plurality of types of data areas requiring different optimal read powers, wherein different optimal read power information respectively specifying the... Agent: Stein, Mcewen & Bui, LLP

20070153649 - Optical disc drive and related method of determining optimum write power for writing data to optical disc: A method for determining an optimum write power for writing data to an optical disc is disclosed. The method includes utilizing a plurality of candidate write powers for writing data to the optical disc; measuring at least a writing quality parameter corresponding to each of the candidate write powers, respectively;... Agent: North America Intellectual Property Corporation

20070153655 - Method and apparatus of determining and storing optimized power calibration data for recording medium: In the present invention, an identification code of the recording medium is searched in a first memory and a second memory. If the identification code is failed to be found in the memories, an optimized power calibration (OPC) operation is executed to generate new OPC data. The new OPC data... Agent: Madson & Austin Gateway Tower West

20070153656 - Method for playback or recording of an optical recording medium: The present invention relates to a method for analyzing abnormal regions on an optical recording medium. The method includes the steps of: detecting the abnormal region; determining the type of the abnormal region; and measuring the length of the abnormal region. Before playback or recording of an optical recording medium... Agent: Joseph J. Laks, Vice President Thomson Licensing LLC

20070153657 - Write-once-type recording medium, recording apparatus and method for write-once-type recording medium, and reproducing apparatus and method for write-once-type recording medium: On a write-once-type recording medium 10, there are provided: a definite defect management area 13 to definitely record therein defect management information; and a plurality of temporary defect management areas 14A, 14B, and 14C to temporarily record therein the defect management information. If the recording medium 10 is not yet... Agent: Young & Thompson

20070153659 - Adaptive writing method for high-density optical recording apparatus and circuit thereof: An adaptive writing method of a high-density optical recording apparatus and a circuit thereof. The circuit includes a discriminator for discriminating a magnitude of a present mark of input NRZI data and magnitudes of leading and/or trailing spaces of the input NRZI data, a generator for controlling the waveform of... Agent: Stein, Mcewen & Bui, LLP

20070153660 - Method and system for generating length deviation statistics, and method and system for tuning control parameter of optical storage device using the same: A method for generating length deviation statistics utilized for controlling operation of an optical storage device, includes: detecting a plurality of pattern lengths, each pattern length corresponding to data on an optical storage medium accessed by the optical storage device; and performing calculations according to the pattern lengths to generate... Agent: North America Intellectual Property Corporation

20070153662 - Method and apparatus for recording optical information, and optical disk: A method of recording data optically to an optical disk having a plurality of sectors, in which each sector has a region to be recorded with data, the data is recorded in units of blocks, and the block includes a predetermined number of sectors and is a data unit including... Agent: Wenderoth, Lind & Ponack L.L.P.

20070153661 - Storage medium, reproducing method, and recording method: According to one embodiment, a storage medium includes a burst cutting area at an inner periphery, wherein the burst cutting area has includes plural burst-cutting-area data areas.... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070153663 - Hologram recording/reproducing device and recording/reproducing optical apparatus: A hologram recording/reproducing device includes a recording/reproducing optical unit performing recording and reproducing operations on a hologram recording/reproducing medium. The optical unit includes a laser light source emitting laser light; a spatial-light modulator generating signal light and reference light from the laser light, the signal light and reference light having... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20070153664 - Pattern recognition type optical memory and optical read/write device and method for reading and writing data from or to the memory: There is provided a method and device for reading, writing, or both, data from or to a pattern recognition type optical memory having a light transmittable substrate. Patterns can be formed in the pattern recognition type optical memory from light images representing the data. An optical memory reading device comprises... Agent: Mills & Onello LLP

20070153665 - Optical pickup apparatus: An optical pickup apparatus according to an embodiment includes a semiconductor laser, an objective lens, a grating, and a light detecting device. The grating is installed between the semiconductor laser and the objective lens to divide the light beam emitted from the semiconductor laser into three beams or more including... Agent: Birch Stewart Kolasch & Birch

20070153666 - Optical information recording medium, optical information recording apparatus and method: The present invention is applicable to a recording apparatus of a CD or DVD, a recording method thereof and a recording medium, and an object of the present invention is to clearly record a second information such as characters and figures between two recording levels in an optical disk. The... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070153667 - Visual target presenting optical device: A visual target presenting optical system has a light source that illuminates a visual target to be viewed by a subject, and a visual target presentation state changing unit that can change the direction in which the visual target will be presented to the subject. An alignment luminous flux casting... Agent: Foley And Lardner LLP Suite 500

20070153668 - Data storage device utilizing carbon nanotubes and method for operating: The present invention provides a data storage device that includes a medium capable of recording information, a movable arm above the medium, a carbon nanotube, a driving electrode and a focusing electrode between the driving electrode and the medium. The movable arm has a conductive micro-tip above a first area... Agent: Akin Gump Strauss Hauer & Feld L.L.P.

20070153669 - Method for adjusting light diffusing and light focusing capability of an optical element: The present invention provides a method of adjusting light diffusing and light focusing capability of an optical element. First, an optical substrate having a first surface area is provided. Then, pluralities of pervious convexes are formed on an optical substrate, wherein the pervious convexes occupy a second surface area on... Agent: Rosenberg, Klein & Lee

20070153670 - Optical disk with wobbled tracks and apparatus using this optical disc: Address information is formed by M wobbles (integer M is the number of wobble waves) per bit as a basic unit, and is NRZ-recorded. Also, a sync signal used in sync detection of the address information is formed by N wobbles per bit as a basic unit (integer N is... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070153671 - Optical recording medium and recording system for the same: An optical recording medium and a recording system for the same are provided, which can dissipate heat produced by a laser beam during recording operations to thereby increase the erasing power margin of the laser beam which allows the playback jitter value to take on a certain value or less.... Agent: Oliff & Berridge, PLC