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Dynamic information storage or retrieval February patent applications/inventions, industry category 02/12

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
  
02/23/2012 > 6 patent applications in 6 patent subcategories. patent applications/inventions, industry category

20120044790 - Head gimbal assembly with two wiring layers comprising thermally-assisted head: Provided is a head gimbal assembly (HGA) in which the electrodes for a thermally-assisted magnetic recording head comprising a light source, a photodetector and a magnetic head element, can be reliably electrically connected to wiring members by solder ball bonding (SBB). The HGA comprises a suspension comprising: a base; a... Agent: Tdk Corporation

20120044791 - Recording apparatus: A recording apparatus, which records information in an optical recording medium, includes: a mode-lock laser unit including a saturable absorber section that applies a bias voltage, a gain section that feeds a gain current, a semiconductor laser that emits laser light used to record the information on the optical recording... Agent: Sony Corporation

20120044792 - Method and apparatus for determining an optimal focus bias and spherical aberration compensating value in an optical disc drive: A method for determining an optimal combination of focus bias and spherical aberration compensating value (SA value) in an optical disc drive is provided. Firstly, a first focus bias is set, the SA values are adjusted and the corresponding tracking error signal values are measured. Second-order-approximation is performed to obtain... Agent: Sunplus Technology Co., Ltd.

20120044793 - Recording device and optical oscillator device: A recording device that records information in an optical recording medium includes: a self excited oscillation semiconductor laser including a saturable absorber section to apply a bias voltage and a gain section to inject a gain current, and also emitting a laser light to record the information in the optical... Agent: Sony Corporation

20120044794 - Discrimination method of optical disc: A discrimination method of an optical disc. The method includes: focusing a light spot on a rewritable zone of the optical disc; reading an EFM signal of data marks of the optical disc to check if the optical disc is a data disc or a blank disc; when the optical... Agent:

20120044795 - Optical disc drive: Bandwidth is secured for a read signal transmission line by matching the characteristic impedance of the read signal transmission line with the output impedance of a photodetector of an optical pick up, while at the same time securing bandwidth for the photodetector. In an optical disc drive according to an... Agent: Hitachi-lg Data Storage, Inc.

  
02/16/2012 > 3 patent applications in 3 patent subcategories. patent applications/inventions, industry category

20120039155 - Hybrid near-field transducer for heat assisted magnetic recording: An apparatus includes a planar waveguide having a core layer and a cladding layer adjacent to the core layer, the waveguide being shaped to direct light to a focal point; a magnetic pole adjacent to the cladding layer; and a near-field transducer positioned adjacent to the focal point, wherein the... Agent: Seagate Technology LLC

20120039156 - Device and method for detecting disc defect: A method for detecting a typical defect area on a disc track includes the following steps. Firstly, a source signal is provided. Then, first and second signals are generated according to the source signal. The first and second signals are held at the peak level of the source signal and... Agent: Sunplus Technology Co., Ltd.

20120039157 - Method for recording critical patterns with different mark lengths onto optical storage medium and related controller thereof: An exemplary method for recording a first mark with a first length and a second mark with a second length onto an optical storage medium includes: when recording of the first mark requires a power transition from a first laser power level to a second laser power level, making a... Agent:

  
02/09/2012 > 6 patent applications in 6 patent subcategories. patent applications/inventions, industry category

20120033534 - Microwave assisted magnetic head: A microwave assisted magnetic head is formed to include a main pole magnetic layer including a main pole; a shielded magnetic layer including a shielded pole; a recording coil that is formed to generate a writing magnetic field from a tip of the main pole; and a microwave radiation waveguide... Agent: Tdk Corporation

20120033535 - Optical disc and optical disc drive: The present invention provides a multilayer optical disc and an optical disc drive which can identify recording layers without performing tracking servo control or changing the structure of the disc. In a multilayer optical disc 100, the recording layer includes a layer identification region 101 having a recording pattern for... Agent:

20120033536 - Optical recording method and optical recording device: In an optical recording method, recording parameters (WU) to be used for recording are obtained using recommended recording parameter values (WR) read from an optical recording medium and previously obtained vector information (PC) and approximation coefficients (Ca, Cb) (S24). Writing to the optical recording medium is performed using the obtained... Agent:

20120033537 - Copy station: In an embodiment, a method for making copies of a master disc is described. The method includes receiving a master disc. The method also includes capturing an image of a label on a first side of the master disc. The method also includes generating a data image of data stored... Agent: Rimage Corporation

20120033538 - Storage apparatus: A storage apparatus comprising: a casing forming a housing chamber; a disk drive housed in, at a spacing from, the housing chamber, such that unit outer walls of the disk drive are separated by a clearance from inner walls of the casing; and a buffer member interposed in the clearance... Agent: Buffalo Inc.

20120033539 - Method for high density data storage and imaging: An approach is presented for designing a polymeric layer for nanometer scale thermo-mechanical storage devices. Cross-linked polyimide oligomers are used as the recording layers in atomic force data storage device, giving significantly improved performance when compared to previously reported cross-linked and linear polymers. The cross-linking of the polyimide oligomers may... Agent: International Business Machines Corporation

  
02/02/2012 > 14 patent applications in 11 patent subcategories. patent applications/inventions, industry category

20120026847 - Optical device, manufacturing method thereof, optically assisted magnetic recording head and magnetic recorder: Disclosed is an optical device including a concave surface formed of a part of a cylindrically curved surface, and the concave surface is a reflection surface.... Agent: Konica Minolta Opto, Inc.

20120026846 - Thermally-assisted magnetic recording head comprising characteristic clads: Provided is a thermally-assisted magnetic recording head with improved light density of near-field light (NF-light) with which a medium is irradiated. The head comprises: a magnetic pole; a waveguide for propagating light for exciting surface plasmon; a surface plasmon generator provided between the magnetic pole and the waveguide, coupled with... Agent: Tdk Corporation

20120026848 - Information storage medium, recording and reproducing apparatus, and recording and reproducing method: An information storage medium is provided. The information storage medium includes a user data area on which user data is recorded, and a temporary disc management area on which a space bitmap representing a recording status of at least one recording/reproducing unit block of the user data area is recorded.... Agent:

20120026849 - Optical disc device: An optical disc device includes: a focus error signal generation section configured to generate a focus error signal based on reflected light from an optical disc; and a focus control section configured to generate a drive signal for focus control of an optical pickup from the focus error signal. The... Agent: Panasonic Corporation

20120026850 - Optical disc reproduction apparatus: An instantaneous jitter information detection section detects, based on first and second digital values indicating different polarities relative to a predetermined reference value, an instantaneous gradient value corresponding to a difference value between the first and second digital values, and an instantaneous deviation value corresponding to a difference value between... Agent: Panasonic Corporation

20120026851 - Information recording medium and disk apparatus using the medium: An optical recording medium including a plurality of recording layers to record/reproduce information using light with a predetermined wavelength, the information being recorded on one of the recording layers using a mark and a space, wherein a channel clock period T is provided for recording the mark on one of... Agent:

20120026852 - Optical disk recording device, method for recording data on optical disk, and optical disk: According to a method of the present invention for recording data on an optical disk, a recording pulse corresponding to a long mark includes a combination of a leading pulse and a subsequent intermediate pulse. Further, a level of the leading pulse indicates a first recording power, and a level... Agent:

20120026853 - Optical disc reproducing apparatus: An optical disc reproducing apparatus includes an Internet connectable LAN module and a control unit for controlling the LAN module. In the optical disc reproducing apparatus, the operation of the LAN module is temporarily stopped for periods during which an optical disc is being reproduced and Internet connection is not... Agent:

20120026854 - Information recording medium and disk apparatus using the medium: An optical recording medium including a plurality of recording layers to record/reproduce information using light with a predetermined wavelength, the information being recorded on one of the recording layers using a mark and a space, wherein a channel clock period T is provided for recording the mark on one of... Agent:

20120026855 - Method and system for processing information from optical disk layers: A method for processing information is provided. The method includes directing a laser beam to a first track of a first layer of a holographic storage medium. The method also includes recording a base voltage based on a look-up table. The method includes directing the laser beam to a target... Agent: General Electric Company

20120026856 - Optical information record/reproduction apparatus and reproduction apparatus: A holographic memory apparatus comprises first phase modulation means that adds phase information to each pixel of a signal beam to generate page data at recording time; oscillator light generation means that generates an oscillator light that is superimposed on, and interferes with, a diffracted light from a holographic recording... Agent: Hitachi Consumer Electronics Co., Ltd.

20120026857 - Optical pickup device: An optical pickup device has an astigmatism element which imparts astigmatism to reflected light of laser light reflected on a recording layer, and a spectral element into which the reflected light is entered, and which separates the reflected light. The spectral element is divided into six second areas by a... Agent: Sanyo Electric Co., Ltd.

20120026858 - Optical pickup device: An optical pickup device has an astigmatism element which imparts astigmatism to reflected light of laser light reflected on a recording layer, and a spectral element into which the reflected light is entered, and which separates the reflected light. The spectral element is divided into four third areas by a... Agent: Sanyo Electric Co., Ltd.

20120026859 - Optical pickup apparatus: An optical-pickup apparatus includes: a laser diode having a first-laser element, which emits a first-laser beam, and a second-laser element, which emits a second-laser beam having a wavelength shorter than a wavelength of the first-laser beam, arranged in the same package; an objective lens to condense the first- and second-laser... Agent: Sanyo Electric Co., Ltd.

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