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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.
  
07/10/2014 > 8 patent applications in 7 patent subcategories.

20140192433 - Tape cleaner drive arrangement for a tape library: A tape cartridge library that is equipped with a cleaning device is described. The tape cartridge library essentially includes a plurality of tape cartridges each possessing recording tape media. A plurality of tape drives that read and write data to and from each of the tape cartridges. A tape cleaning... Agent: Spectra Logic Corporation

20140192434 - Inter-track interference cancelation for shingled magnetic recording: Inter-track interference cancelation is disclosed, including: receiving an input sequence of samples associated with a track on magnetic storage; using a processor to generate inter-track interference (ITI) data associated with a first side track including by performing a correlation between the input sequence of samples and a sequence of data... Agent: Sk Hynix Memory Solutions Inc.

20140192435 - Offset correction values on a data storage media: A memory system includes a storage medium having tracks arranged on the storage medium. The tracks include data track portions configured to store data. The tracks have a data track width and offset correction portions having a width that is greater than the data track width of the associated data... Agent: Seagate Technology LLC

20140192436 - Method and system for hard disk drive throughput optimization using position error signaling: Systems and methods are provided for throughput optimization of a hard disk drive (HDD) using position error signaling (PES) that includes determining a PES for a HDD mounted in a chassis based on a dynamic disturbance. The method also includes calculating a critical parameter of the PES. The method further... Agent:

20140192437 - Head rotator assembly for tape drive: A head rotator assembly (22) for positioning a head (20) of a tape drive (10) relative to a storage tape includes a head supporter (230) and a supporter mover assembly (232). The head supporter (230) is coupled to and supports the head (20). The supporter mover assembly (232) selectively rotates... Agent: Quantum Corporation

20140192439 - Motor and disk drive apparatus: A motor includes a shaft component, an upper plate portion, a lower plate portion, and a sleeve portion. The shaft component includes an inner shaft portion and an outer shaft portion. The sleeve portion is disposed between the upper plate portion and the lower plate portion. A radial gap is... Agent: Nidec Corporation

20140192438 - Rotating device: A rotating device includes a sleeve which encircles a shaft, a housing which supports the shaft and which forms an annular supporting recess where the lower end of the sleeve enters together with the shaft, a ring member which is provided above the sleeve and which is fixed to the... Agent: Samsung Electro-mechanics Japan Advanced Technology Co., Ltd.

20140192440 - Slider with shock damping features: An apparatus and associated methodology contemplating a slider body defining longitudinal extents at a leading end and a trailing end. A fluid bearing surface is formed in part by a side rail extending substantially longitudinally along the slider body and joined to a cross rail extending substantially laterally along the... Agent: Seagate Technology LLC

  
07/03/2014 > 9 patent applications in 8 patent subcategories.

20140185156 - Power conservation based on hard disk rotational inertia: Various embodiments are generally directed recurringly cycling the driving of a platter media of a hard drive with a motor, allowing rotation of the platter media to slow only to a threshold rotational speed to balance power conservation with delays in accessing data. A method comprises driving platter media of... Agent:

20140185157 - Utilization of disk buffer for background replication processes: Embodiments of the present invention utilize a hard disk drive buffer to minimize seek delays during background replication of a first volume and fulfillment of application input/output requests. According to one aspect of the present invention, a requested first sector of data is read along with one or more additional... Agent: International Business Machines Corporation

20140185158 - Fly height control for hard disk drives: A fly height control circuit includes an input node to receive a digital control signal, an output node to output a control current to a resistive heater element to adjust a spacing between a read/write head and a surface of a storage medium, and control circuitry to process the digital... Agent: Lsi Corporation

20140185159 - Sync mark detection using branch metrics from data detector: Methods and apparatus are provided for detecting a sync mark in a storage system, such as a hard disk drive. A sync mark is detected in a storage system by obtaining one or more branch metrics from a data detector in the storage system; generating one or more sync mark... Agent: Lsi Corporation

20140185160 - Spindle motor having coupling member between base member and core and hard disk drive including the same: There is provided a spindle motor including: a fluid dynamic pressure bearing assembly; a base member coupled to the fluid dynamic pressure bearing assembly; and a core fixedly coupled to the base member and having a coil wound therearound, wherein the base member has a disk portion and a coupling... Agent: Samsung Electro-mechanics Co., Ltd.

20140185161 - Humidity and temperature controlled tape drive cleaning: In one embodiment, a method includes receiving at least one of temperature information and humidity information about an environment in which a tape drive resides, performing an analysis of the at least one of temperature information and humidity information, making a determination whether to modify a cleaning cycle based on... Agent: International Business Machines Corporation

20140185162 - Base assembly and hard disk drive including the same: There is provided a base assembly including a motor mounting part, and a base body including a disk mounting part coupled to the motor mounting part and having a disk disposed thereon, the disk having data stored therein, and a head seating part formed in a position lower than that... Agent: Samsung Electro-mechanics Co., Ltd.

20140185163 - Base plate, and method of manufacturing the same and disk drive including the same: There is provided a base plate including a body part formed of a metal plate, a pocket part including a recess formed in one surface of the body part by decreasing a thickness of the body part, a center plate part forming the pocket part and corresponding to the recess,... Agent: Samsung Electro-mechanics Co., Ltd.

20140185164 - Tolerance ring with discrete tolerance ring panels: A tolerance ring for a hard disc drive assembly is disclosed and can include a plurality of discrete tolerance ring panels. Each tolerance ring panel can include an arcuate sidewall that can include an unformed portion and at least one projection extending from the arcuate sidewall. The projection can be... Agent: Saint-gobain Performance Plastics Rencol Limited

  
06/26/2014 > 25 patent applications in 19 patent subcategories.

20140177082 - Over-sampled signal equalizer: An apparatus comprises read channel circuitry and signal processing circuitry associated with the read channel circuitry. The signal processing circuitry is configured to: equalize an oversampled digital data signal to determine an equalized digital data signal, filter the equalized digital data signal, determine a hard decision and reliability of the... Agent: Lsi Corporation

20140177083 - Independently driven write coils: A writer assembly having two separately driven write coils allows a combined write field generated by the writer assembly to be fine turned and optimized for a particular application. Two preamplifiers may be incorporated into a printed circuit board in order to separately drive the write coils. In other implementations,... Agent: Seagate Technology LLC

20140177085 - Disk storage apparatus and method for shingled magnetic recording: According to one embodiment, a disk storage apparatus includes a storage device, a writing controller, and a controller. The storage device includes a nonvolatile cache area in which a part of consecutive data is temporarily stored. The writing controller is configured to write the consecutive data in a recording area... Agent:

20140177084 - Systems and methods for managed operational marginalization: Systems, methods, devices, circuits for data processing, and more particularly to data processing including operational marginalization capability.... Agent: Lsi Corporation

20140177086 - Disk drive with servo system with timing adjustments to master timer for sam detection errors: A disk drive is described with a single servo master timer that is used to control timing critical signals such as servo gate, SAM windows, channel power save, PREAMP power save and so on. The master timer is adjusted to compensate for SAM detection errors (early, late or missed) and... Agent: Hgst Netherlands B.v.

20140177087 - Equalization combining outputs of multiple component filters: An apparatus comprises read channel circuitry and associated signal processing circuitry. The signal processing circuitry comprises: an equalizer configured to combine an output of two or more component filters into a single equalized data signal; a detector with an input coupled to an output of the equalizer configured to determine... Agent: Lsi Corporation

20140177088 - Customizing a range of acceptable tape dimensional stability write conditions: Described are embodiments of an invention for customizing the range of acceptable write conditions to a tape of a tape cartridge that contracts or expands laterally based on environmental conditions. The tape drive utilizes servo information to determine if the tape has expanded or contracted from the nominal dimension and... Agent: International Business Machines Corporation

20140177089 - Storage device head instability recovery by heating from head heater: Technologies are described herein for recovering an instable head in a storage device using an internal head heater. An instability in the reader head may be detected, and, in response to detecting the instability, a thermal shock may be applied to the reader head utilizing the head heater to recover... Agent: Seagate Technology LLC

20140177091 - Asymmetric trailing shield writer for shingled magnetic recording (smr): In one embodiment, a magnetic head includes a main pole adapted for producing a writing magnetic field, a trailing shield positioned on a trailing side of the main pole, wherein a trailing gap is positioned between the trailing shield and the main pole, and a side shield positioned on at... Agent: Hgst Netherlands B.v.

20140177093 - Magnetic head having a soft magnetic layer formed behind a tunneling magnetoresistance (tmr) sensor in an element height direction: A magnetic head according to one embodiment includes a read sensor adapted for sensing an external magnetic field; an upper magnetic shield positioned above the read sensor along an air bearing surface (ABS) of the read sensor; a lower magnetic shield positioned below the read sensor along the ABS of... Agent: Hgst Netherlands B.v.

20140177092 - Mamr head adapted for high speed switching: A microwave-assisted magnetic recording (MAMR) head according to one embodiment includes a main magnetic pole adapted to generate a writing magnetic field when current is applied to a write coil; a trailing shield positioned, at an air bearing surface (ABS), in a trailing direction from the main magnetic pole; and... Agent: Hgst Netherlands B.v.

20140177090 - Media topography driven flying height modulation sensing using embedded contact sensor: Approaches for a flying height control scheme in a hard-disk drive (HDD) device. The flying height control scheme utilizes an embedded contact sensor (ECS) to characterize the topography of a magnetic-recording disk at various flying heights of a head slider over a corresponding disk. A relation between a particular flying... Agent: Hgst Netherlands B.v.

20140177094 - Spindle motor and hard disk drive including the same: There is provided a spindle motor including a sleeve rotatably supporting a shaft, a rotor coupled to an upper end of the shaft and rotating together with the shaft, a stopper part coupled to a main wall part protruding from one surface of the rotor and facing an outer peripheral... Agent: Samsung Electro-mechanics Co., Ltd.

20140177096 - Base assembly and recording disk driving device having the same: There is provided a base assembly including: a base member having a disk accommodating part onto which a disk is insertedly disposed; and a filter member installed on the base member so as to be disposed adjacently to the disk, wherein the base member is formed by performing plastic processing... Agent: Samsung Electro-mechanics Co., Ltd.

20140177095 - Spindle motor and hard disk drive including the same: There is provided a spindle motor, including: a shaft having a fixing groove formed in a lower portion thereof; a lower thrust member including a fixing part inserted into the fixing groove, a disk part extending from the fixing part in an outer radial direction, and an extension part extending... Agent: Samsung Electro-mechanics Co., Ltd.

20140177097 - Hard disk drive module having temperature detecting function: A hard disk drive module comprises a hard disk drive, a bracket, a hard disk drive backplane, and a temperature detecting circuit. The bracket supports the hard disk drive. The hard disk drive backplane is electrically connected to the hard disk drive. The temperature detecting circuit comprises a temperature detecting... Agent: Hong Fu Jin Precision Industry (shenzhen) Co., Ltd.

20140177098 - Digital device configuration and method: A digital Storage Element is described. A device is configured including a Storage Element for access by a user responsive to a native control code. A processing arrangement executes a control program for controlling the overall device and executing at least a portion of the native control code as part... Agent: Benhov Gmbh, LLC

20140177099 - Magnetic head for perpendicular recording having a plurality of magnetic path portions: A magnetic head includes a coil, a main pole, a write shield, and a return path section. The return path section includes a yoke layer located on the front side in the direction of travel of a recording medium relative to the main pole, and a coupling part coupling the... Agent:

20140177100 - Mamr head with a multi-layered side gap for stable oscillation of the sto: A microwave-assisted magnetic recording (MAMR) head according to one embodiment includes a main pole; a trailing shield positioned downstream from the main pole; an oscillation device adapted to generate a high-frequency magnetic field, the oscillation device being positioned between the main pole and the trailing shield; a circuit adapted to... Agent: Hgst Netherlands B.v.

20140177101 - Magnetic head and magnetic recording/reproduction apparatus: According to one embodiment, an oscillation layer of a spin torque oscillator for use in a magnetic head includes a stack of first and second metal films. The first metal film is formed by repetitively stacking a combination of first and second magnetic layers twice or more. The thickness of... Agent: Kabushiki Kaisha Toshiba

20140177102 - Multi-reader method and apparatus: In accordance with one embodiment, a multi-reader can be manufactured so as to be able to read from multiple regions of a storage device contemporaneously during operation. Such a device can be configured, for example, by forming a first wall; forming a second wall; and utilizing the first wall and... Agent: Seagate Technology LLC

20140177103 - Pmr writer device with multi-level tapered write pole: A perpendicular magnetic recording (PMR) head is fabricated with a multi-level tapered write pole. The write pole comprises a main pole with a tapered tip on a leading edge or a trailing edge, on which is formed at least one yoke that has a tapered edge. The edge of the... Agent: Headway Technologies, Inc.

20140177104 - Perpendicular magnetic write head and magnetic recording device: A trailing shield is provided on a trailing side of a magnetic pole with a non-magnetic gap layer in between, and an intermediate layer having negative uniaxial magnetocrystalline anisotropy is provided between the non-magnetic gap layer and the trailing shield. The intermediate layer has a magnetic property in which an... Agent: Tdk Corporation

20140177105 - Magnetic data recording system with mirror image asymmetric magnetic write elements: A magnetic disk drive system configured for shingled magnetic data recording wherein data tracks are recorded in an overlapping fashion on a magnetic media. The disk drive system includes magnetic write heads that are asymmetric so as to have increased writing at one side of the write head. The magnetic... Agent: Hgst Netherlands B.v.

20140177106 - Suspension board with circuits and method for manufacturing the same: A thick portion having a first thickness and a thin portion having a second thickness on a base insulating layer are formed on a conductive support substrate. The second thickness is smaller than the first thickness. A boundary surface is formed between an upper surface of the thick portion and... Agent: Nitto Denko Corporation

  
06/19/2014 > 19 patent applications in 14 patent subcategories.

20140168806 - Disk drive write-inhibit control using adaptive pes predictor: Disk drives are described with a write inhibit control system with an adaptive head position predictor, e. g. an adaptive FIR filter, that includes a set of coefficients (weights) that are updated for each iteration based on the difference between past predictions and actual location measurement. Standard PES signals are... Agent: Hgst Netherlands B.v.

20140168808 - Disk storage apparatus and method for determining malfunction of high-frequency oscillating element: According to one embodiment, a disk storage apparatus includes a magnetic head, a detector, a calculator, and a decision module. The magnetic head has a high-frequency assisted element disposed close to a main magnetic pole that generates a recording magnetic field for perpendicular magnetic recording, the high-frequency assisted element applying... Agent: Kabushiki Kaisha Toshiba

20140168807 - Templated granular magnetic recording media: A system and method for recording data to a perpendicular magnetic recording media having a highly ordered granular structure. The method includes the synchronization of write frequency and write phase to the granular structure of the magnetic media optimize performance of the magnetic data recording system by minimizing bit error... Agent: Hgst Netherlands B.v.

20140168809 - Tag multiplication via a preamplifier interface: An apparatus having a controller and a preamplifier is disclosed. The controller may be configured to generate information on a serial bus coupled to a preamplifier interface. The preamplifier may be configured to (i) generate a count value in response to a clock signal synchronized to a recording medium and... Agent: Lsi Corporation

20140168810 - Systems and methods for adaptive threshold pattern detection: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for detecting patterns in a data stream.... Agent: Lsi Corporation

20140168811 - Irregular low density parity check decoder with low syndrome error handling: A data processing system is disclosed including a data decoder circuit, an error handling circuit and a syndrome checker circuit. The data decoder circuit is operable to apply a data decode algorithm to a decoder input to yield a decoded output, and to calculate a syndrome indicating an error level... Agent: Lsi Corporation

20140168813 - Mass balanced flexure gimbal for head gimbal assembly sway mode control: Approaches to a mass balanced flexure gimbal assembly for controlling the sway mode of the loadbeam portion of the suspension of a head gimbal assembly (HGA) of a hard-disk drive (HDD). The sway mode of concern is that which is excited when a head slider is actuated by a plurality... Agent: Hgst Netherlands B.v.

20140168812 - Spin torque oscillator (sto) reader with soft magnetic side shields: In one embodiment, a magnetic head includes a first shield; a spin torque oscillator (STO) sensor positioned above the first shield, the STO sensor comprising a reference layer and a free layer positioned above the reference layer; and at least one shield positioned in a plane that is parallel with... Agent: Hgst Netherlands B.v.

20140168814 - Head gimbal assembly and disk device with the same: According to one embodiment, a head gimbal assembly includes a load beam, a base plate fixed to a proximal-end portion of the load beam, a flexure attached to the load beam and the base plate, a gimbal portion formed of a distal-end portion of the flexure positioned on a distal-end... Agent: Kabushiki Kaisha Toshiba

20140168815 - Head gimbal assembly and disk device with the same: According to one embodiment, a head gimbal assembly includes a load beam, a base plate fixed to a proximal-end portion of the load beam, a flexure attached to the load beam and the base plate, a gimbal portion formed of a distal-end portion of the flexure positioned on a distal-end... Agent: Kabushiki Kaisha Toshiba

20140168816 - Crystalline magnetic layer to amorphous substrate bonding: Various methods for attaching a crystalline write pole onto an amorphous substrate and the resulting structures are described in detail herein. Further, the resulting structure may have a magnetic moment exceeding 2.4 Tesla. Still further, methods for depositing an epitaxial crystalline write pole on a crystalline seed or template material... Agent: Seagate Technology LLC

20140168817 - Exchange enhanced cap manufactured with argon and oxygen implantation: A magnetic media having a novel cap layer that allows the cap layer having improved exchange coupling and reduced thickness. The cap layer is doped with a non-reactive element such as Ar, Kr, Xe, Ne or He preferably Ar. This doping reduces increases exchange coupling and reduces the dead layer,... Agent: Hgst Netherlands B.v.

20140168819 - Hard disk having a squeeze air bearing for rotating a disk: Approaches to use of a squeeze air bearing for supporting and/or rotating the disks in a hard-disk drive. The squeeze bearing, whose effect is based on relative normal motion between two surfaces, is arranged adjacent to the rim of the disk to provide a bearing force at the disk rim.... Agent: Hgst Netherlands B.v.

20140168818 - Read sensor for recording head: Implementations described and claimed herein provide a read sensor structure having a synthetic anti-ferromagnetic (SAF) structure with a pinning that is canted with respect to an air bearing surface (ABS) of the read sensor. In an implementation of the read sensor, the angle between the pinning direction of a reference... Agent: Seagate Technology LLC

20140168820 - Slider with lubricant control features: A slider that minimizes lubricant accumulation includes bearing surfaces that provide above ambient fluid pressure, a cavity located between two bearing surfaces and at least one step feature that is spaced apart from the bearing surfaces and is located in and protrudes from a floor of the cavity at a... Agent: Seagate Technology LLC

20140168821 - Co-located gimbal-based dual stage actuation disk drive suspensions with motor stiffener: Various embodiments concern a gimbaled flexure having a dual stage actuation structure. The flexure comprises a gimbal which includes a pair of spring arms, a pair of struts, and a tongue between the spring arms. A motor is mounted on the gimbal. The motor comprises a top side and a... Agent:

20140168822 - Magnetic sensor with extended pinned layer and partial wrap around shield: A magnetic read head that has improved pinned layer stability while also maintaining excellent free layer stability. The free layer has sides that define a trackwidth of the sensor and a back edge that defines a functional stripe height of the sensor. However, the pinned layer can extend significantly beyond... Agent: Hgst Netherlands B.v.

20140168823 - Magnetic write head having a residual shield seed layer for reducing overwriting: A magnetic write head having a write pole and a trailing, wrap-around magnetic shield formed over the write pole and separated from the write pole by a non-magnetic trailing gap layer and non-magnetic side gap layers. The write head includes a remnant magnetic seed layer, that while being used to... Agent: Hgst Netherlands B.v.

20140168824 - Magnetic sensor having an extended pinned layer and shape enhanced bias structure: A magnetic read sensor having an extended pinned layer structure and also having an extended free layer structure. The extended pinned layer structure and extended free layer structure both extend beyond the strip height of the free layer of the sensor to provide improved pinning strength as well as improved... Agent: Hgst Netherlands B.v.

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