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Dynamic magnetic information storage or retrieval

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.
  
09/04/2014 > 9 patent applications in 8 patent subcategories.

20140247513 - Environmental data record: A drive assembly includes a memory device and a computing device communicatively coupled to the memory device. The computing device is to receive environmental data from a host device via a second communication channel isolated from a first communication channel and record the environmental data on the memory device.... Agent:

20140247514 - Systems and methods for adc sample based inter-track interference compensation: Various embodiments of the present invention provide systems and methods for mitigating inter-track interference using pre-equalized data samples.... Agent: Lsi Corporation

20140247515 - Tape drive buffer utilization: Records or filemarks read from data segments are aggregated into at least one single data segment. The records and the filemarks are reorganized and restructured in the single data segment such that buffer utilization is improved.... Agent: International Business Machines Corporation

20140247516 - Localized dispersed storage memory system: A method includes a processing module receiving data to store and determining error coding dispersal storage function parameters based on an error profile of one or more hard drives. The method continues with the processing module encoding at least a portion of the data in accordance with the error coding... Agent: Cleversafe, Inc.

20140247517 - Regulating distribution of power in a hard disk drive following a power loss: Applicant has recognized and appreciated the desirability of powering an actuator using power drawn from one or both of an energy storage device and a spindle motor. In some embodiments, following a loss of external power to a hard disk drive, the hard disk drive (or one or more components... Agent: Stmicroelectronics S.r.i.

20140247518 - Fluid dynamic bearing unit and disk drive device including the same: A first sleeve rotatably extends around a shaft. First and second flanges are fixed to the shaft. A second sleeve extending around the first sleeve is fixed thereto. A first annular member fixed to the second sleeve surrounds the first flange. A second annular member fixed to the second flange... Agent: Samsung Electro-mechanics Japan Advanced Technology Co., Ltd.

20140247519 - Magnetic recording medium and method for producing the same: According to one embodiment, there is provided a magnetic recording medium which includes a base, a magnetic recording layer having convex-shaped magnetic layers, which is formed on the base, and a protective film formed on the magnetic recording layer. There are gaps in a region surrounded by the protective film,... Agent:

20140247520 - Magnetic storage medium and magnetic recording apparatus: According to one embodiment, a magnetic storage medium includes a plurality of recording layers and a first non-magnetic layer. The plurality of recording layers each includes at least one first magnetic layer and at least one second magnetic layer. The first magnetic layer is made of a first magnetic material... Agent: Kabushiki Kaisha Toshiba

20140247521 - Gimbal assembly resonance mode anti-biasing: A data storage system includes an actuator assembly including a load beam having a base plate end and a slider end. A bias feature is formed in the load beam near the base plate end of the load beam. The bias feature is configured to induce lateral motion on the... Agent: Seagate Technology LLC

  
08/28/2014 > 9 patent applications in 8 patent subcategories.

20140240863 - Max-log-map equivalence log likelihood ratio generation soft viterbi architecture system and method: A modified soft output Viterbi algorithm (SOVA) detector receives a sequence of soft information values and determines a best path and an alternate path for each soft information value and further determines, when the best and alternate paths lead to the same value for a given soft information value, whether... Agent: Stmicroelectronics Inc.

20140240865 - Dynamically controlling magnetoresitive bias: Magnetoresistive (MR) bias is dynamically controlled in a tape drive using a processor device. Median tape head amplitude is monitored during a calibration operation, as measured across all tracks of the tape head, against predetermined thresholds of the tape drive for determining if the median tape head amplitude is below... Agent: International Business Machines Corporation

20140240864 - Storage device having degauss circuitry configured for generating degauss signal with asymmetric decay envelopes: A hard disk drive or other storage device comprises a storage medium, a write head configured to write data to the storage medium, and control circuitry coupled to the write head. The control circuitry comprises degauss circuitry coupled to or otherwise associated with one or more write drivers. The degauss... Agent: Lsi Corporation

20140240866 - Adjustment of tape writing mechanism, based on tape dimensional stability and positional error signal distribution: A determination is made in a tape drive of a potential deviation in tape dimensional stability of a tape, based on a current environmental condition and environmental conditions in which the tape is expected to be operational. A writing mechanism to write data to the tape is adjusted, based on... Agent: International Business Machines Corporation

20140240867 - Operation of tape drives: Tape heads are described herein including (i) a first module including a read transducer array with at least one transducer element to read data from a tape, and (ii) a second module including a read transducer array with at least one transducer element to read data from the tape. In... Agent:

20140240868 - High performance cartridge format: A data storage system according to one embodiment includes a magnetic head, a drive mechanism for passing a magnetic medium over the magnetic head, and a controller electrically coupled to the magnetic head. The data storage system is configured to use at least two different track width formats, where which... Agent: International Business Machines Corporation

20140240869 - Pressure-sensitive adhesive sheet and magnetic disk drive: A pressure-sensitive adhesive sheet according to the present invention includes a base including a metal layer, a first plastic film layer A, and a second plastic film layer B and a pressure-sensitive adhesive layer on a surface of the second plastic film B. The metal layer is positioned between the... Agent: Nitto Denko Corporation

20140240870 - Analog tunneling current sensors for use with disk drive storage devices: Amplifier architectures are provided for current sensing applications. An amplifier includes a load device, an operational amplifier, a current source, and a bipolar transistor. The operational amplifier has a first input terminal connected to a first input node that receives an input current, and a second input terminal connected to... Agent: Lsi Corporation

20140240871 - Interface voltage control operating point determination in a hard disk drive: Approaches for an interface voltage control (IVC) system in a hard-disk drive (HDD), whereby the IVC operating point determination scheme utilizes non-contact spacing signals for calibration of IVC. While applying a series of input voltages to a slider, head-disk spacing signals are monitored, such as spacing signals from an embedded... Agent: Hgst Netherlands B.v.

  
08/21/2014 > 8 patent applications in 7 patent subcategories.

20140233128 - Systems and methods for burst demodulation: A data processing circuit with flaw robust burst field demodulation includes a burst integration circuit operable to calculate burst integration results for a servo data burst field, a comparison circuit operable to determine whether an absolute value of the burst integration results falls outside a window, and an error indicating... Agent: Lsi Corporation

20140233129 - Noise predictive filter adaptation for inter-track interference cancellation: Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for adapting noise predictive filters for inter-track interference cancellation in a data processing system.... Agent: Lsi Corporation

20140233130 - Systems and methods for determining noise components in a signal set: Various embodiments of the present invention provide systems and methods for estimating noise components in a received signal set. For example, one embodiment of the present invention provides a noise estimation circuit that includes a data detector circuit and a noise component calculation circuit. The data detector circuit receives a... Agent: Lsi Corporation

20140233131 - Protecting information written to recording medium: A data storage device can include a recording medium; a controller unit to generate control signals in response to write information and write commands; and a transducer section coupled to receive the controls signals, and in response, write the write information into the recording medium and form a data protection... Agent: Seagate Technology International

20140233132 - Temperature-defined data-storage policy for a hybrid disk drive: Data is stored in a hybrid drive that includes a magnetic storage medium and a non-volatile solid-state device using a temperature-defined data-storage policy. According to the temperature-defined data storage policy, the drive can perform operations for modulating the temperature of the drive, minimizing increased wear on memory cells in the... Agent: Kabushiki Kaisha Toshiba

20140233133 - Spindle motor and recording disk driving device having the same: There is provided a spindle motor including a base member formed by firing processing a steel plate and provided with a cylindrical installation part, a shaft support part including a sleeve insertedly disposed in the installation part, a shaft rotatably supported by the shaft support part, a rotor hub fixed... Agent: Samsung Electro-mechanics Co., Ltd.

20140233134 - Two dimensional magnetic sensor immune to skew angle misalignment: Apparatus for two dimensional data reading. In accordance with some embodiments, a magnetic read element has a plurality of read sensors positioned symmetrically about a pivot point with at least two of the read sensors configured to concurrently read two dimensional user data while being immune to skew angle misalignment.... Agent: Seagate Technology LLC

20140233135 - Magnetoresistance effect element, magnetic head, magnetic head assembly, and magnetic recording and reproducing device: According to one embodiment, a magnetoresistance effect element includes first and second shields, a stacked body and a hard bias unit. The stacked body includes first and second magnetic layers, an intermediate layer and a first Ru layer. A magnetization of the first magnetic layer is changeable. A magnetization of... Agent: Kabushiki Kaisha Toshiba

  
08/14/2014 > 13 patent applications in 9 patent subcategories.

20140226227 - Calibration of ramp location in a disk drive employing spiral-based self servo writing: The location of a load/unload ramp in a disk drive is calibrated by monitoring servo spirals that are crossed by a magnetic read/write head during an unload process. Monitoring the number servo spirals crossed allows an accurate velocity of the read/write head to be determined. Based on this unload velocity... Agent: Kabushiki Kaisha Toshiba

20140226228 - Variable stopwrite threshold: A data storage system according to one embodiment includes a head, a drive mechanism for passing a medium over the head, a controller electrically coupled to the head, and logic integrated with and/or executable by the controller. The logic is configured to: update a first value based on a current... Agent: International Business Machines Corporation

20140226229 - Systems and methods for shared layer data decoding: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for performing data decoding.... Agent: Lsi Corporation

20140226230 - Adaptive soft-output detector for magnetic tape read channels: In one embodiment, a method includes passing a signal through a noise whitening filter, passing the signal through a soft detector to calculate first soft information, passing the signal through the soft decoder to calculate second soft information based on the first soft information, and sending the second soft information... Agent: International Business Machines Corporation

20140226231 - Adaptive soft-output detector for magnetic tape read channels: In one embodiment, a method includes passing a signal through an adaptive noise whitening filter, wherein one or more noise whitening coefficients used in the noise whitening filter are updated using a noise whitening filter coefficient updater, wherein the noise whitening filter is configured to process the signal according to... Agent: International Business Machines Corporation

20140226232 - Adaptive soft-output detector for magnetic tape read channels: In accordance with one embodiment, a computer program product includes a computer readable storage medium having computer readable program code that is readable and/or executable by a processor to: receive a signal including precoded data read from a magnetic tape medium and pass the signal through a soft detector to... Agent: International Business Machines Corporation

20140226233 - Storage device with reflection compensation circuitry: A hard disk drive or other storage device comprises a storage medium, a write head configured to write data to the storage medium, and control circuitry coupled to the write head. The control circuitry comprises a write driver configured to generate a write signal comprising a write pulse, and reflection... Agent: Lsi Corporation

20140226234 - System and method for providing controllable steady state current waveshaping in a hard disk drive (hdd) preamplifier: Aspects of the disclosure pertain to a system and method for providing controllable steady state current waveshaping in a preamplifier of a data storage system (e.g., hard disk drive). The preamplifier provides an output including a write current waveform having a steady state current level that is controllable via the... Agent: Lsi Corporation

20140226235 - Methods for formatting and using linear recording media having a reduced servo band width: Methods for formatting and using a linear magnetic recording medium. The medium in one embodiment has a servo band having a width b that is less than or equal to about 1.2 B/N, where N is an integer greater than or equal to 2, and B corresponds to a distance... Agent: International Business Machines Corporation

20140226237 - Error recovery based on applying current/voltage to a heating element of a magnetic head: In one embodiment, a magnetic disk device includes a magnetic disk medium, at least one magnetic head having at least one of: a magnetic read element configured to read data from the magnetic disk medium and a magnetic write element configured to write data to the magnetic disk medium, and... Agent: Hgst Netherlands B.v.

20140226236 - Linear recording device for executing optimum writing upon receipt of series of commands including mixed read and write commands and method and program thereof: A tape drive is provided, which executes an optimum writing method even when overwrite is intervened between mixed read and write operations. When an overwrite command is received while executing the mixed operations, which writes to a predetermined tape position, when a tape position to overwrite on is encountered before... Agent: International Business Machines Corporation

20140226238 - Disk drive unit: A disk drive unit includes a base, a hub rotatably supported on the base and including a setting part on which a recording disk is to be set, and a bearing unit having one end fixed to the base and another end holding the hub. The hub includes a cut... Agent: Samsung Electro-mechanics Japan Advanced Technology Co., Ltd.

20140226239 - Magnetic read sensor using spin hall effect: A magnetic sensor utilizing the spin Hall effect to polarize electrons for use in measuring a magnetic field. The sensor eliminates the need for a pinned layer structure or antiferromagnetic layer (AFM layer), thereby reducing gap thickness for increased data density. The sensor includes a non-magnetic, electrically conductive layer that... Agent: Hgst Netherlands B.v.

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