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Dynamic information storage or retrieval May archived by USPTO category 05/11

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
  
05/26/2011 > 25 patent applications in 22 patent subcategories. archived by USPTO category

20110122735 - Thermally assisted magnetic head-slider and head-gimbal assembly: A thermally assisted magnetic head-slider includes an air-bearing slider, a metal film, and a semiconductor laser unit. The metal film having an aperture in a part through which light from the semiconductor laser unit passes is disposed between a surface opposite to an air-bearing surface of the air-bearing slider and... Agent: Hitachi, Ltd.

20110122736 - Near-field optical head and information recording/reproducing device: A near-field optical head includes: a near-field light generating element, formed on a counter surface of a slider facing the surface of a magnetic recording medium and having two or more side surfaces each of which are in contact with the counter surface at a certain angle with the counter... Agent:

20110122737 - Thermally-assisted magnetic recording head with light detector in element-integration surface: A thermally-assisted magnetic recording head is provided, in which the light-source output can be adjusted according to its variation by environmental influences and over time. The head comprises: a light source; a write head element provided in a element-integration surface; an optical system provided in the element-integration surface and configured... Agent: Tdk Corporation

20110122738 - Information recording and reproduction apparatus: The present invention relates to an information recording and reproduction apparatus which records the information on a disk by heating the disk with near-field light and causing magnetization reversal by applying a recording magnetic field to the disk. An optical waveguide 32, which introduces light beam emitted from a laser... Agent:

20110122739 - Library control device and library system: A library control device to controls a library device includes a designated-information acquisition section, a loading control section, a transfer control section and a medium storage control section. The transfer control section that orders, when a storage location indicated by the loading control section to a library device and a... Agent: Fujitsu Limited

20110122740 - Simple resume reproduction device and simple resume reproduction method: A simple resume reproduction device which performs resume reproduction after reproduction of content is interrupted. Content; an application that is a program for reproducing the content; and at least one reproduction control information item for controlling execution of the application are recorded on a recording medium. The simple resume reproduction... Agent: Panasonic Corporation

20110122741 - Optical recording medium having auxiliary information and reference clock: An information recording medium is at least composed of a substrate having a microscopic pattern constituted by a continuous substrate of grooves formed with a groove portion and a land portion alternately, a recording layer formed on the microscopic pattern for recording information, and a light transmitting layer formed on... Agent: Victor Company Of Japan, Limited

20110122742 - Recording medium having a substrate containing microscopic pattern of parallel groove and land sections and recording/reproducing equipment therefor: An information recording medium 1 at least comprises a substrate 13 having a microscopic pattern 20, which is constituted by a shape of continuous substance of approximately parallel grooves formed with a groove section G and a land section L alternately, a recording layer 12 formed on the microscopic pattern... Agent: Victor Company Of Japan, Limited

20110122743 - Recording medium having a substrate containing microscopic pattern of parallel groove and land sections and recording/reproducing equipment therefor: An information recording medium 1 at least comprises a substrate 13 having a microscopic pattern 20, which is constituted by a shape of continuous substance of approximately parallel grooves formed with a groove section G and a land section L alternately, a recording layer 12 formed on the microscopic pattern... Agent: Victor Company Of Japan, Limited

20110122744 - Objective lens unit, optical pickup, and optical information apparatus: An objective lens unit according to the present invention includes a first objective lens 41; and a first lens holder 2 for supporting the first objective lens 41. The first lens holder 2 is formed of a material which transmits ultraviolet. Preferably, the first lens holder 2 includes a through-hole,... Agent: Panasonic Corporation.

20110122745 - Objective lens unit, optical pickup, and optical information apparatus: An objective lens unit according to the present invention includes a first objective lens 41; and a first lens holder 2 for supporting the first objective lens 41. The first lens holder 2 is formed of a material which transmits ultraviolet. Preferably, the first lens holder 2 includes a through-hole,... Agent: Panasonic Corporation.

20110122746 - Assembly method of optical pickup and optical pickup apparatus: A method for assembling an optical pickup apparatus for recording/reproducing a high density DVD, DVD and CD including two objective lens and three laser light sources, the objective lenses being provided on the lens holder having an actuator base for supporting the actuator, the method for assembling the optical pickup... Agent: Konica Minolta Opto, Inc.

20110122748 - Write-once read-many information recording medium, information recording method, information reproduction method, information recording apparatus, and information reproduction apparatus: A write-once read-many information recording medium is provided, which is capable of easily searching for a latest DDS and a latest defect list. At least one disc management working area is sequentially allocated in a predetermined direction on the write-once read-many information recording medium of the present invention. The latest... Agent: Panasonic Corporation

20110122749 - Optical disc, optical disc drive, optical disc recording/reproducing method, and integrated circuit: An address format for appropriately controlling the recording linear density and the number of information recording layers is provided in order to increase the recording capacity of an information recording medium such as an optical disc or the like in a range in which a necessary S/N ratio can be... Agent: Panasonic Corporation

20110122750 - Optical disc, optical disc drive, optical disc recording/reproducing method, and integrated circuit: A big pattern for a run-in area which allows data reproduction to be performed stably even when the recording density of an optical disc is increased is provided. An optical disc according to the present invention includes tracks, each of which divided into a plurality of recording blocks. Each of... Agent: Panasonic Corporation

20110122751 - Optical disc drive apparatus, control method thereof and optical disc drive system: An optical disc drive apparatus includes: a plurality of optical heads reading out data recorded on an optical disc; and a control section respectively controlling a readout operation and a seek operation for the data of the optical heads. The control section includes a first mode in which when reading... Agent: Sony Corporation

20110122747 - Automatic power control system for optical disc drive and method thereof: An automatic power control system, an automatic power control method, a down sampling circuit and a down sampling method. The automatic power control system is incorporated in an optical disc drive comprising a laser diode for receiving a control signal to generate a laser beam; and a photodetector for detecting... Agent: Mediatek Inc.

20110122752 - Copy protection system for optical discs: An optical disc has a recording format including a first index indicating the positions of each of a plurality of program blocks within a program area, the program blocks comprising one or more content blocks containing readable data, and one or more unrecoverable blocks containing unrecoverable data, the recording format... Agent:

20110122753 - Method for determining focus height: A method for determining a focus height of an optical disc drive is provided. A disc is placed into the optical disc drive. An objective lens is moved to lock a focus on a data layer of the disc. The objective lens is radially moved from inner tracks to outer... Agent: Quanta Storage Inc.

20110122754 - Deflection optical element, optical recording head and optical recording apparatus: m

20110122755 - Objective lens and optical pickup apparatus: Provided are an objective lens with enhanced transmittance and an optical pickup apparatus which can record and/or reproduce information properly for three kinds of discs with different recording densities, even if a single lens is used as the objective lens. When all the expressions (1) to (3) are satisfied, excellent... Agent:

20110122756 - Optical disc recording method and optical disc recorder: To compensate for edge shifts varying largely in accordance with preceding mark lengths. Provided are a method and a recorder in which a duration of a cooling pulse in each recording pulse string to form a mark having a length of nT is determined on the basis of an edge... Agent: Hitachi Consumer Electronics Co., Ltd.

20110122757 - Hard disk drive frame: A hard disk drive frame is provided. The distances from its hard disk drive fixing parts to the substrate center are not the same. During the process of vibrational energy transfer, three-dimensional reactions are induced correspondingly to cancel the kinetic energy transfer. The reactions generated at the static balance point... Agent: Moxa Inc.

20110122758 - Optical information recording/reproducing apparatus and objective optical system for the same: h

20110122759 - Data recording apparatus and system having sustained high transfer rates: According to the invention, techniques for recording data onto recording media at relatively high transfer rates for relatively long periods of time. Embodiments according to the present invention include systems and apparatus capable of an improved sustained rate of data recording onto disk type-recording media, for example. Many embodiments can... Agent: Hitachi, Ltd.

  
05/19/2011 > 8 patent applications in 7 patent subcategories. archived by USPTO category

20110116349 - Thermally-assisted magnetic recording head comprising near-field optical device with propagation edge: There is provided a near-field-light (NFL) generating optical system in which the point where near-field (NF) light is generated can be provided sufficiently close to the end surface of a magnetic pole that generates write field. The optical system comprises: a waveguide through which a light for exciting surface plasmon... Agent: Tdk Corporation

20110116350 - Recording and reproducing unit and recording and reproducing method: A recording and reproducing unit includes: a first optical head having at least one route of laser beam irradiation system that irradiates an optical disc recording medium with a laser beam; a second optical head having plural routes of laser beam irradiation systems that irradiate the optical disc recording medium... Agent: Sony Corporation

20110116352 - Recording power determination method and device: A recording power determination method for determining a recording power of an optical beam for recording data on an information storage medium includes the steps of recording test data on the information storage medium at a plurality of test recording powers; reading the test data recorded at each test recording... Agent: Panasonic Corporation

20110116351 - Servo controller and optical disk device: In a servo controller and an optical disk device (FIG. 4), the following performance for disturbance is improved. By disposing a characteristic change section to change a characteristic to improve the following performance for disturbance, the disturbance is detected by use of a signal in a stage after the characteristic... Agent: Hitachi Consumer Electronics Co., Ltd.

20110116353 - Write-once-read-many optical disk having low-to-high recording property accommodating short wavelength recording: A write-only-read-many type optical recording medium includes a substrate, an organic material layer having a light absorption function that is sufficient for recording in the recording/reproduction wavelength range, the organic material layer being situated on the substrate, and a reflection layer being situated on the organic material layer. The recording... Agent:

20110116354 - Optical pickup apparatus: An optical pickup apparatus includes: a laser diode configured to emit a laser beam; and an objective lens configured to condense the laser beam into a laser spot through which a signal recorded on a signal recording layer of an optical disc is read out by the laser beam, the... Agent: Sanyo Optec Design Co., Ltd.

20110116355 - Electronic module with shockproof function: An electronic module includes a case, a holding frame, a removable disk drive, a transmission cable, a fixing part, and a shock-absorbing structure. An opening is formed on the case. The holding frame is disposed at a position of the case corresponding to the opening. The removable disk drive is... Agent:

20110116356 - Optical recording medium having auxiliary information and reference clock: An information recording medium is at least composed of a substrate having a microscopic pattern constituted by a continuous substrate of grooves formed with a groove portion and a land portion alternately, a recording layer formed on the microscopic pattern for recording information, and a light transmitting layer formed on... Agent: Victor Company Of Japan, Limited

  
05/12/2011 > 16 patent applications in 12 patent subcategories. archived by USPTO category

20110110202 - Thermally-assisted magnetic recording head comprising near-field optical device with propagation edge: There is provided a near-field-light (NFL) generating optical system in which the point where near-field (NF) light is generated can be provided sufficiently close to the end surface of a magnetic pole that generates write field. The optical system comprises: a waveguide through which a light for exciting surface plasmon... Agent: Tdk Corporation

20110110203 - Controlling optical disc: An optical disc is rotated using a spindle motor of an optical disc device, at no more than 600 revolutions per minute (RPM). The spindle motor has at least three coil groups, where each coil group has one or more coils. While the optical disc is rotating, at least one... Agent:

20110110204 - Variable mirror actuator and optical disc drive: A pickup and a drive, in a small size, having a spherical aberration correction device capable of correcting various spherical aberration, and coma aberration and/or astigmatism with a low power consumption. A variable-focus lens actuator can correct spherical aberration such that a transparent deformation film warps into a parabolic shape... Agent: Hitachi Consumer Electronics Co., Ltd.

20110110205 - Apparatus for controlling servo signal gains of an optical disc drive and method of the same: The invention provides an apparatus for controlling servo signal gains of an optical disc drive. The apparatus adjusts the gains of a plurality of servo signals controlling a servo system of the optical disc drive when the optical disk drive encounters an operating state transition. In a first mode, at... Agent: Mediatek Inc.

20110110208 - Coma aberration compensating device, coma aberration compensating method, and optical disc: A method for compensating the coma aberration in a pickup of a recording and reproducing device that records or reproduces data on or from an optical disc using the pickup is provided. The method includes a first coma aberration compensating step to compensate coma aberration in a body of an... Agent: Pioneer Corporation

20110110206 - Optical disk device: Proposed is an optical disk device capable of optimally adjusting a current value of a direct current and a high frequency superimposed current for driving a laser diode. This optical disk device includes a laser driver for superimposing a high frequency current on a direct current to obtain a drive... Agent: Hitachi Consumer Electronics Co., Ltd.

20110110207 - Optical unit, control method, and optical information recording/reproducing device: An optical unit includes an optical system for shining a laser beam on an optical recording medium having a recording layer and a focus control reference surface. The optical system is composed of an objective lens for focusing a recording/reproducing beam emitting from a first light source in the recording... Agent:

20110110210 - Information detection device and optical disc device: An information detection device includes an equalizer that equalizes the readout signal to a PR channel having equalization target levels of four or more values, and a Viterbi detector. The Viterbi detector generates branch metrics with the equalization target levels as reference levels to determine recording data from an output... Agent: Renesas Electronics Corporation

20110110209 - Optical information media, systems, and methods for providing ubiquitous read and selective write: An optical information media, system, and method for providing ubiquitous reading and selective writing is disclosed. By placing data structures representing a nonstandard book type in byte “0” of the media, the media is made universally bootable and universally readable in substantially any DVD drive. On the other hand, data... Agent:

20110110211 - External compact disc drive for data encryption and decryption and method for the same: An external compact disc drive for data encryption and decryption and the method is disclosed. The back up data is encrypted, via an encryption key generated by an encryption/decryption unit of the external compact disc drive during the recording of back up data to a compact disc. The encrypted back... Agent:

20110110212 - Storage device: The hard disk drive device includes a casing, a hard disk drive unit, and cushioning members interposed between the hard disk drive unit and the inside wall of the casing and adapted to receive stress and absorb impact stress through strain. The cushioning members include a first layer situated towards... Agent: Buffalo Inc.

20110110214 - Information recording medium, information recording method, information recording apparatus, information reproducing method and information reproducing apparatus: If a defective cluster in a spare area is managed with a defect entry, the size of a DFL will increase as the size of the spare area increases with an increase in the number of recording layers stacked in a disc. An information recording medium according to the present... Agent:

20110110213 - Optical component laser-welded structure and optical pickup manufacturing method: In a laser welding method, detachment is suppressed and dislocation of an optical component is reduced by improving adhesiveness of an interface of a welded part to thereby improve yield and reliability of an optical pickup device. A manufacturing method of an optical pickup device includes: a step of bringing... Agent: Hitachi Media Electronics Co. Ltd.

20110110215 - Optical pickup apparatus: An optical pickup apparatus comprises: a first laser diode that generates a first laser beam having a first wavelength; a second laser diode that generates a second laser beam having a second wavelength longer than the wavelength; a third laser diode that generates a third laser beam having a third... Agent: Sanyo Optec Design Co., Ltd.

20110110216 - Optical element, aberration correcting element, light converging element, objective optical system, optical pickup device, and optical information recording reproducing device: An optical system for use in an optical pickup apparatus comprises a first optical surface having a superposition type diffractive structure including a plurality of ring-shaped zones which are formed concentrically around an optical axis, wherein each ring-shaped zone is composed of a plurality of stepped sections stepwise, and a... Agent: Konica Minolta Opto, Inc.

20110110217 - Objective lens, optical pickup and optical disc apparatus: An objective lens is made of a resin material and focuses incident rays, which have a wavelength of 410 nm or less and are emitted from a light source, on an optical disc at a numerical aperture of 0.8 or more, wherein when a lens tilt sensitivity is defined as... Agent: Sony Corporation

  
05/05/2011 > 17 patent applications in 12 patent subcategories. archived by USPTO category

20110103201 - Light delivery waveguide: A light source and a waveguide are mounted on a recording head slider. Light rays are emitted from the light source into the waveguide. The waveguide may include two core layers for light ray transmission. The first core layer enhances light coupling efficiency from the light source to the second... Agent: Seagate Technology LLC

20110103202 - Optical disk unit and reproduction method therefor: It is desirable to provide a reproduction method having a high operating efficiency in an optical disk unit containing a mass storage memory such as a semiconductor memory. Data to be recorded is recorded on both an optical disk and the mass storage memory. Verify flags respectively corresponding to recording... Agent: Hitachi-lg Data Storage, Inc.

20110103203 - Actuator for pickup, pickup device, recording medium drive device, and method of manufacturing actuator for pickup: Provided is an actuator for a pickup, in which end parts of a plurality of suspensions (550A to 550F) of five or more are positioned on a virtual circle (X) formed on a plane by being projected onto the plane including both a focusing direction and a tracking direction. A... Agent: Pioneer Corporation

20110103204 - Method and apparatus for compensating for defect of storage medium: An apparatus for compensating for a defect of a storage medium of an optical driving includes a memory to store sample values of a servo driving signal during at least one track sampled by a first signal and cycle information about the first signal; a servo driving signal estimator to... Agent:

20110103205 - Optical disc apparatus and tracking control method: An optical disc apparatus of the present application has a lens position signal generator for generating a lens position signal representative of a position of an objective lens in a disc radial direction, an amplitude corrector for correcting an amplitude of a tracking error signal, and a tracking controller for... Agent:

20110103208 - Manufacturing method for optical disc, optical disc, playback method for optical disc, playback apparatus for optical disc, recording apparatus for optical disc: Address information that has been error correction encoded is recorded on a second version of a recording medium after being transformed such that such that the address decoding cannot be performed by a playback device that is not compatible with the second version of the recording medium. The address decoding... Agent: Sony Corporation

20110103207 - Optical system of optical pick-up and optical information recording/reproducing apparatus: d

20110103209 - Drive device and method for controlling the same: An optical drive includes: an optical pickup; a preprocessing circuit which processes an optical signal detected by the optical pickup; nonvolatile memory having stored therein relation information which represents the relation of a signal balance with respect to a signal difference between a TE signal and an FE signal at... Agent: Panasonic Corporation

20110103206 - Optical disk apparatus and information recording method: In an optical disk apparatus, by obtaining the temperature in the vicinity of a laser in the apparatus, the power source voltage of the laser driver is controlled such that power consumed by the headroom of the laser driver is reduced to the maximum extent without deteriorating the current drive... Agent: Hitachi, Ltd.

20110103210 - Method and apparatus for processing defect in data storage medium: A method of detecting defects of a recording medium comprises detecting a number of error-corrected error correction code symbols in each of a plurality of sectors in the recording medium, classifying sectors having a number of error-corrected ECC symbols greater than a first threshold value as first type defect sectors,... Agent: Samsung Electronics Co., Ltd.

20110103214 - Data recording medium, server device using the same, and method of managing use of data recording medium: A server device without a means for accessing an IC memory included in a data storage medium can check whether or not a data storage medium includes an IC memory. A portable optical disc medium (100) includes an IC memory (106) accessible through proximity wireless communication and a computer-readable recording... Agent:

20110103212 - Methods for assessing the results of disc-based bioassays with standard computer optical drives: Methods and systems are described for assessing the results of a bioassay between probe biomolecules and target biomolecules using a conventional optical disc drive. Particular methods involve: bonding the probe biomolecules to a polycarbonate (PC) surface of an optical disc having digital data comprising error-detection redundancies recorded thereon; introducing the... Agent: Simon Fraser University

20110103211 - Optical recording medium, method of manufacturing optical recording medium, recording method and reproducing method: An optical recording medium includes recording layers and intermediate layers. The recording layers include a diffraction grating that has a predetermined grating pitch and is obtained by alternately laminating first layers and second layers being transparent and having slightly different refractive indexes. The intermediate layers are transparent and have a... Agent: Sony Corporation

20110103213 - System and method for embedding optical drive compatibility information in optical media: Compatibility information embedded in an optical medium modifies actions allowed by predetermined non-compatible optical disc drives on the optical medium, such as optical disc drives that may suffer damage if certain actions are performed on the optical medium. For instance, a compatibility engine of the optical disc drive applies compatibility... Agent:

20110103215 - Optical pickup apparatus: An optical pickup apparatus, which reads signals recorded on first and second signal recording layers of an optical disc, includes: a laser diode; an objective lens to condense a laser beam to the first and second signal recording layers; and a collimating lens disposed in a light path of the... Agent: Sanyo Optec Design Co., Ltd.

20110103216 - High data density optical recording medium: The present invention relates to a high data density optical recording medium. The invention further relates to an apparatus for reading from such an optical recording medium. The optical recording medium has marks that are arranged in tracks. The tracks have a cross section with a curved shape and protrude... Agent: Thomson Licensing

20110103217 - Optical information recording/reproducing optical system and optical information recording/reproducing apparatus: An objective lens for an optical information recording/reproducing optical system for an optical disc letting a laser beam impinge on a recording layer of the optical disc, and wherein a center wavelength λ (unit: nm) of the laser beam is in a range defined by a condition: 390≦λ≦420, a base... Agent: Hoya Corporation

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