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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.
  
12/18/2014 > 13 patent applications in 9 patent subcategories.

20140368944 - Analog front end for proximity sensing of tunneling current: A circuit includes an input that receives a current that increases as a tunneling current sensor moves closer to a media. A high gain path is operatively coupled to the input to amplify the received current as a first amplified output. The first amplified output increases until a saturation threshold... Agent: Texas Instruments Incorporated

20140368943 - Semiconductor integrated circuit device, magnetic disk storage device, and electronic apparatus: A semiconductor integrated circuit device has a p-type substrate to which a ground voltage is applied and a floating-type NMOSFET which is integrated on the p-type substrate and to which a negative voltage lower than the ground voltage is applied. The floating-type NMOSFET includes an n-type buried layer buried in... Agent:

20140368945 - System and methods for mitigating write emulation on a disk device using cache memory: An emulation mitigation module is configured to mitigate emulation of legacy write requests on advanced disk devices using cached data stored in a cache memory of a storage system. A legacy write request may comprise write data blocks formatted in a legacy sector size while an advanced disk device may... Agent: Netapp, Inc.

20140368946 - In situ sensor based contact detection: A method for detecting a contact event between a transducer and a recording medium is disclosed. The method includes positioning a transducer with respect to a recording medium, where the transducer includes a writer, a reader, a heater, and a thermally responsive sensor. The method further includes applying power to... Agent:

20140368947 - Magnetic recording medium lubricant mixture and systems thereof: m

20140368948 - Top cover, disk drive apparatus, and method of manufacturing top cover: A top cover for use in a disk drive apparatus includes a plate made of a metal and a gasket fixed to the plate. The gasket is made of an elastomer. A surface of the plate includes a fixing region to which the gasket is closely adhered. The fixing region... Agent:

20140368949 - Class-ab amplifier, motor device, magnetic disk storage device, and electronic apparatus: A class-AB amplifier has upper side and lower side transistors, a linear driver, upper side and lower side idlers, upper side and lower side detection current generators, and an off driver. The upper side and lower side idlers bias upper side and lower side gate voltages by generating upper side... Agent:

20140368951 - Spindle motor and hard disk drive including the same: There are provided a spindle motor including a second thrust member installed on a base member; a shaft installed on the second thrust member; a sleeve disposed above the second thrust member and installed to be rotatable with respect to the shaft; a rotor hub coupled to the sleeve; and... Agent: Samsung Electro-mechanics Co., Ltd.

20140368952 - Spindle motor and hard disk drive including the same: There are provided a spindle motor and a hard disk drive including the same. The spindle motor includes: a shaft; a sleeve rotatably supporting the shaft by fluid dynamic pressure; a stator core installed on an outer surface of the sleeve; a base member fixed to the sleeve, wherein at... Agent: Samsung Electro-mechanics Co., Ltd.

20140368950 - Switching regulator, motor drive device, magnetic disk storage device, and electronic apparatus: A switching regulator has an output stage which, with an output switch element, an inductor, a rectifying element, and a smoothing element, generates an output voltage from an input voltage, a divided voltage generator which generates a divided voltage from a switch voltage generated at one terminal of the rectifying... Agent: Rohm Co., Ltd.

20140368953 - Tape head with tape-bearing surface exhibiting an array of protruding topographic features: A tape head, adapted for reading and/or writing to a magnetic tape, has a tape-bearing surface and is configured to urge a magnetic tape against the bearing surface, in operation. The bearing surface includes a transducer area, having at least one transducer that is a read and/or write element, designed... Agent: International Business Machines Corporation

20140368954 - Disk drive suspension: In a first terminal portion, a first conductor, a terminal element as a first protection, and a first gold-plating layer are provided. The first terminal element is thicker than a base nickel layer of a slider terminal portion. The first gold-plating layer is provided with a first roughening processed portion.... Agent: Nhk Spring Co., Ltd.

20140368955 - Disk drive suspension and manufacturing method therefor: An actuator mounting section includes a plate member including a first plate and a second plate. The first plate is formed with an opening which accommodates an actuator element. The second plate includes a main body portion which overlaps the first plate and supporting portions which support opposite ends of... Agent:

  
12/11/2014 > 17 patent applications in 12 patent subcategories.

20140362461 - Systems and methods for floating variance branch metric calculation: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for data detection.... Agent:

20140362462 - Systems and methods for media defect detection with pattern qualification: An apparatus for detecting media flaws includes an envelope based media defect detector operable to identify a media defect based on an envelope of an input signal, a periodic pattern detector operable to determine whether the input signal comprises a data pattern, and a media flaw signal generation circuit operable... Agent:

20140362463 - Timing error detector with diversity loop detector decision feedback: Aspects of the disclosure pertain to an apparatus for detecting timing errors including an analog to digital converter circuit, a diversity loop detector and a timing error calculation circuit. The analog to digital converter circuit is operable to convert an input signal into a series of digital samples. The diversity... Agent: Lsi Corporation

20140362464 - Position detection encoder: A position detection encoder includes a scale and a detection head and has position detection circuits which are capable of outputting respective pieces of position information on Xf, Xs two tracks. The displacement detection encoder includes: a speed detection circuit which is provided in the detection head and detects a... Agent: Mitutoyo Corporation

20140362465 - Electrically isolated tape guide: An electrically isolated tape guide that includes a tape roller having spaced apart flanges extending out from the tape roller for passing magnetic tape between the flanges, and an electrically non-conductive pin having a first end coupled to a center opening of the tape roller to allow the tape roller... Agent:

20140362466 - Disc drive apparatus with vapor-trapping pathway: Various aspects of the present disclosure are directed toward a disc driver apparatus including a base, a disc drive actuator assembly, and a vapor-trapping pathway. The base, in certain embodiments, has an upwardly-facing portion with a first step and an adjacent second step that is vertically lower than the first... Agent: Seagate Technology LLC

20140362467 - Head suspension assembly and disk device with the assembly: According to one embodiment, a head suspension assembly includes a base plate, a load beam including a proximal end secured onto the base plate, a head supported on the load beam via a gimbal, a flexure attached on the load beam and the base plate, and first and second piezoelectric... Agent: Kabushiki Kaisha Toshiba

20140362471 - Disk drive device with hub with thinness and suppressed torque decrease: The disk drive device includes a base member, a hub, a bearing unit which is arranged on the base member and which rotatably supports the hub, and a spindle drive unit which drives the hub to rotate. The spindle drive unit includes a stator core having a salient pole, a... Agent:

20140362468 - Magnetic recording head and disk drive with the same: According to one embodiment, a magnetic recording head of a disk drive includes a main pole configured to produce a recording magnetic field perpendicular to a recording layer of a recording medium, a trailing shield located on the trailing side of the main pole with a write gap therebetween, a... Agent: Kabushiki Kaisha Toshiba

20140362470 - Spindle motor for use in disk drive apparatus, and disk drive apparatus: A lead wire guide member is made of an electrically insulating material, and arranged to extend along a lower surface of a base portion. A movement restricting portion is arranged in the lower surface of the base portion. Lead wires are arranged to pass through base through holes to reach... Agent: Nidec Corporation

20140362469 - Spindle motor for use in disk drive apparatus, disk drive apparatus, and method of manufacturing stator: A motor includes a base portion including a plurality of base through holes passing there through and a stator arranged on an upper side of the base portion. A plurality of coils of the stator include three coil groups including one or more of the coils defined by a single... Agent: Nidec Corporation

20140362472 - Perpendicular magnetic recording medium and magnetic storage apparatus: A perpendicular magnetic recording medium includes a nonmagnetic substrate, an underlayer provided above the nonmagnetic substrate, and a perpendicular recording layer provided above the underlayer. The perpendicular recording layer includes a first magnetic layer including Co and Pt and having a granular structure, and a second magnetic layer having magnetic... Agent:

20140362473 - Low friction tape head: A magnetic head according to one embodiment includes outer portions each having a tape bearing surface and an array of transducers selected from a group consisting of readers and writers; a central portion positioned between the outer portions, the central portion having a tape bearing surface and an array of... Agent:

20140362474 - Tolerance ring, hard disk device, and method for manufacturing hard disk device: A tolerance ring has a ring shape formed of a plate-shaped member substantially into a circle along a predetermined direction and includes a plurality of convex portions protruding in a radial direction, and a notch portion notched in a direction orthogonal to a circumferential direction on at least one of... Agent: Nhk Spring Co., Ltd.

20140362476 - Co-located gimbal-based dual stage actuation disk drive suspensions with dampers: Various embodiments concern a gimbaled flexure having a dual stage actuation structure comprising flexure which comprises a gimbal. The gimbal comprises at least one spring arm and a tongue connected to the at least one spring arm. The dual stage actuation structure further comprises a motor mounted on the gimbal,... Agent:

20140362475 - Damped dual stage actuation disk drive suspensions: Various embodiments concern a DSA suspension of a disk drive. The DSA suspension comprises a support configured to attach to the disk drive, the support comprising a proximal portion, a distal portion, and a linkage portion therebetween. The DSA head suspension system further comprises at least one motor mounted on... Agent:

20140362477 - Magneto-resistance effect device, and magnetic recorder: According to one embodiment, a magneto-resistance effect device includes: a multilayer structure having a cap layer; a magnetization pinned layer; a magnetization free layer provided between the cap layer and the magnetization pinned layer; a spacer layer provided between the magnetization pinned layer and the magnetization free layer; a function... Agent:

  
12/04/2014 > 10 patent applications in 8 patent subcategories.

20140355147 - Cycle-slip resilient iterative data storage read channel architecture: According to one embodiment, a magnetic medium's readback signal samples are processed iteratively to provide a slip-resistant read channel by feeding the decoder output decisions back to the read channel front end where they are used to drive the decision-aided digital signal processing functions and control loops. Since data decisions... Agent:

20140355148 - Transport agnostic sequential drive recovery with mode data snooping: Implementations of the present disclosure involve a system and/or method for a target level driver of a host computer to obtain and maintain the state or mode of a physical or virtual tape drive storage system to restore the state of the tape drive storage system. The target level driver... Agent: Oracle International Corporation

20140355150 - Head transducer with multiple resistance temperature sensors for head-medium spacing and contact detection: A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and... Agent:

20140355149 - Iterative data storage read channel architecture having dropout mitigation: According to one embodiment, a magnetic medium's readback signal samples are processed iteratively to provide dropout mitigation for a read channel by feeding the decoder output decisions back to the read channel front end where they are used to drive the decision-aided digital signal processing functions and control loops. Since... Agent:

20140355151 - Tape header protection scheme for use in a tape storage subsystem: In one embodiment, a system for integrating data and header protection in tape recording includes a processor and logic adapted to: provide a data array organized in rows and columns, each row of the data array including four interleaved C1 codewords (CWI-4), add a header to each row of the... Agent:

20140355152 - Interlayer coupled free layer with out of plane magnetic orientation for magnetic read head: In one embodiment, a magnetic head includes a reference layer having magnetic orientation about aligned with a plane of deposition thereof; a first free layer having a magnetic orientation out of a plane of deposition thereof; a spacer layer between the reference layer and the first free layer; a second... Agent: Hgst Netherlands B.v.

20140355153 - Adaptive disturbance compensation with multi-rate synchronized sampling: An apparatus and method for providing adaptive disturbance compensation with multi-rate synchronized sampling is disclosed herein. The dynamic disturbance occurring in a media drive during read/write operations is attenuated using the adaptive disturbance compensation scheme. A plurality of compensation filters are used, each of the compensation filters configured to attenuate... Agent: Quantum Corporation

20140355154 - Disk drive unit: A disk drive unit includes a stationary body; a rotating body rotatably supported on the stationary body, a seal part configured to form a first gas-liquid interface of a lubricant existing in a gap between the stationary body and the rotating body, and a groove-shaped opening opposing the seal part... Agent: Samsung Electro-mechanics Japan Advanced Technology Co., Ltd.

20140355155 - Disk drive device: A disk drive device includes: a chassis; an annular hub on which a recording disk is to be mounted; a fluid dynamic bearing mechanism that supports the hub freely rotatable relative to the chassis; an annular extended portion extending outwardly in a radial direction from the hub; and an annular... Agent: Samsung Electro-mechanics Japan Advanced Tech. Co. Ltd.

20140355156 - Perpendicular magnetic recording media having novel magnetic under-layer structure: A magnetic medium for perpendicular magnetic data recording having improved corrosion characteristics and reduced surface roughness. The magnetic medium includes an under-layer and a perpendicular magnetic recording layer formed over the under-layer. The under-layer can be formed of MgO and has an oxygen concentration that is greater at the perpendicular... Agent: Hgst Netherlands B.v.

  
11/27/2014 > 7 patent applications in 6 patent subcategories.

20140347760 - Head transducer with multiple resistance temperature sensors for head-medium spacing and contact detection: A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and... Agent:

20140347762 - Combined soft detection/soft decoding in tape drive storage channels: In one embodiment, a tape drive system includes a soft detector having logic configured to execute a first forward loop of a detection algorithm on a first block of signal samples during a first time interval, execute a first reverse loop of the detection algorithm on the first block of... Agent:

20140347761 - Data decoding control apparatus, data storage apparatus and data decoding method: According to one embodiment, a data decoding control apparatus includes a reading controller and a decoding controller. The reading controller reads the encoded data of a symbol unit bit by bit from a storage medium. The decoding controller computes a log-likelihood ratio (LLR) value of the symbol unit for estimate... Agent: Kabushiki Kaisha Toshiba

20140347763 - System and method for suppressing jitter in digital data signals including image, video and audio data signals: A system and method for suppressing jitter in a digital data signal in a signal processor system. The digital data signal has spaced apart byte allocation units wherein such spacing is increased such that unallocated bytes can be identified and removed from the digital data signal. The byte allocation units... Agent: Laufer Teknik, Inc.

20140347764 - Apparatus, system, and method for optimally positioning an idle robotic accessor in a tape library: In one embodiment, a system includes a robotic accessor for transporting media between multiple storage slots and one or more data storage drives; a controller for controlling the robotic accessor; a memory in communication with and/or integrated with the controller for storing information about the media and the storage slots,... Agent: International Business Machines Corporation

20140347765 - Two-motor co-located gimbal-based dual stage actuation disk drive suspensions with motor stiffeners: Various embodiments concern a dual stage actuation flexure. The dual stage actuation flexure comprises a flexure having a gimbal. The gimbal comprising a pair of spring arms, a tongue between the spring arms, and a pair of linkages respectively connecting the pair of spring arms to the tongue. The dual... Agent:

20140347766 - Protection of device from electrostatic discharge (esd) damage: Embodiments of the invention relate to electrostatic discharge (ESD) protection. One embodiment includes a first dissipative adhesive (DA) connected to at least a portion of multiple leads in a first plane of a flexible cable in a coverage area for providing ESD protection to at least one element of an... Agent:

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