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8373941 |
Automatic unthread to secure tape from sticking to the head
A system and method for automatically unthreading a tape. The system and method determine whether the drive being at the stop state could cause the tape sticking condition in future after a defined...
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8363345 |
Apparatus, system, and method for automatic unthread and store of data storage device medium
An apparatus, system, and method for automatic unthreading and storage of storage media helps prevent damage to the media, which can otherwise occur when the storage media is left threaded in a...
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8339726 |
Unique media identifier
An apparatus and method for providing a unique identifier for data storage media is disclosed herein. The servo track of the data storage media is encoded one or more times with media...
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8228629 |
Reaction control charge pump, capacitor, and transistor to power lead
The objective of this invention is to provide a motor control device, and a disk drive device using the same, in which during emergency operation it is possible to supply necessary power to the...
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8212503 |
Driving circuit for voice coil motor and method thereof
The invention provides a driving circuit for a voice coil motor. In one embodiment, the driving circuit includes a logic circuit, a digital-to-analog converter, and an output circuit. The logic...
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8208215 |
Techniques for emulating sequential device with constrained disk drive
A disk drive apparatus includes at least one disk, a head-arm assembly, and a controller circuit. The head arm assembly includes at least one read/write head. The head-arm assembly is movable to...
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8155498 |
System and method for indexing commercials in a video presentation
Systems and methods for providing enhanced navigation of stored digital video content based upon an event index. Includes generation and storage of an event index, as well as navigation based on...
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8154826 |
Thin-film magnetic head with variable-volume cavity in medium-opposed surface
Provided is a thin-film magnetic head in which the magnetic spacing can be appropriately controlled by dynamically and accordingly, by adjusting the pressure working between the thin-film magnetic...
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8144416 |
Hard disk driving circuit and method of driving spindle motor
A hard disk driving circuit for reducing a maximum amount of current for driving a spindle motor, and a method of driving the spindle motor. The hard disk driving circuit include spindle motor, a...
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8094402 |
Systems and methods for correcting magnetic tape dimensional instability
Magnetic tape devices encounter read and/or write errors when the tape is not being passed across the head with the proper tension and/or skew angle. According to one embodiment, a system which...
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8077420 |
Method and apparatus for adaptive control and/or use of a vibration sensor in a hard disk drive
Apparatus and methods are disclosed for adaptive control and/or use of a vibration sensor in a hard disk drive (HDD). The HDD, an assembled circuit board and a control circuit are disclosed. The...
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8064155 |
Storage apparatus
A storage apparatus includes a magnetic storage medium which is formed with a data portion based on isolated magnetic dots and a servo pattern portion, a drive mechanism which drives the storage...
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8045282 |
Measurement of track eccentricity on bit patterned media
The eccentricity of tracks defined on a rotating bit patterned media are measured using a readback signal, and the measured eccentricity may be used to control centering of the disk relative to a...
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8041449 |
Bulk feeding disk drives to disk drive testing systems
A method of supplying disk drives to a disk drive testing system includes placing a disk drive tote, carrying multiple disk drives, in a presentation position accessible to an automated transporter...
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8019926 |
Automatically assigning a multi-dimensional physical address to a data storage device
A method of assigning a multi-dimensional physical address to a tape-based data storage device is provided. The method includes accessing a first signal from a first communication path electrically...
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8009063 |
Audio system and navigation device
An audio system for a vehicle includes: a hard disk drive for storing an audio data; an output element for converting the audio data to an electric signal and for outputting the electric signal to...
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7995302 |
Disk drive device and control method of unloading corresponding to fall detection in disk drive device
Embodiments of the present invention improve the safety against a fall of a disk drive device. In one embodiment, when an HDD has recognized detection result data of a fall sensor to indicate a...
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7995303 |
Overhead calculation in writing synchronized data to magnetic tape
Various embodiments for writing received synchronized data to magnetic tape having a plurality of wraps using a magnetic tape drive adapted for performing the writing according to an available...
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7990649 |
Method and apparatus to set a wrap angle of a read/write head
A method is presented for setting a wrap angle of a read/write head having a servo element and multiple read elements, where the servo element and the read elements can detect a servo signal. The...
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7986482 |
Applying whip effect to magnetic tape exhibiting a tape stick condition
As the result of a tape stick condition of magnetic tape with respect to a tape head, the supply reel and the take-up reel apply a base tension to the magnetic tape therebetween of substantially...
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7969674 |
Data transfer assembly performance characteristics testing
An apparatus is provided having a data transfer member, and a medium supported by a base adjacent the data transfer member. A medium tilting device supports the base and is selectively positionable...
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7962645 |
Apparatus, system, and method for automatically mapping a tape library system
An apparatus, system, and method are disclosed for automatically and transparently mapping tape drives within tape libraries to IP addresses. In one embodiment, the tape library includes, a DHCP...
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7911727 |
Controlling motion of storage media
An apparatus for writing data to a data storage medium on which data is stored in data groups (N−3 to N+1) comprising tracks extending across and spaced from a reference edge of the storage m...
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7903363 |
Same Wrap backhitchless write method to encode data on a tape storage medium
A method to write information to a tape storage medium by disposing a tape storage medium in a tape drive apparatus comprising a write head. The method moves the tape storage medium in a first...
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7881821 |
Media storage system
A media storage system includes a disc input element for receiving a media disc, a disc output element for ejecting a disc, and a media reader for reading information from a disc. If insufficient...
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7876521 |
Servo control in tape drives
Servo control methods and apparatus for a tape drive. A read/write head reads and writes data on magnetic tape with at least one servo track providing transverse position information. At least two...
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7859786 |
Ultra high track density adaptive head core track pitch control
Apparatuses and methods for adjusting the track pitches of the tracks on a data storage tape. In one variation, the method comprises adjusting the observed pitch between the tracks by applying...
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7852597 |
Storage medium driving apparatus and control method thereof
A storage medium driving apparatus includes a head slider opposed to a storage medium, an acceleration detector detecting an acceleration of the apparatus. A control circuit retracts the head...
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7796354 |
Method and apparatus for controlling data rate of a tape drive
A method for controlling data rate of a tape drive is disclosed. The tape drive is connected to a computer system. The tape drive stores data by dividing the data into multiple codeword quads...
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7782562 |
Magnetic recording media and magnetic recording device
According to one embodiment, a magnetic recording media includes a magnetic recording layer formed on a substrate, in which recording tracks and servo areas are prescribed as patterns of...
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7764456 |
Method for reducing occurrences of tape stick conditions in magnetic tape
Disclosed is a method for reducing occurrences of tape stick conditions in magnetic tape, the method including stopping functional rotation of each of two bi-directionally rotatable reels of a...
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7761244 |
Selectively mitigating multiple vibration sources in a computer system
One embodiment of the present invention provides a system that mitigates the effects of multiple vibration sources on a set of hard disk drives (HDDs) within a computer system. During operation,...
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7743205 |
Apparatus and method for virtualizing data storage media, such as for use in a data storage library providing resource virtualization
A system and method for use in an automated data storage cartridge library defines cartridges for use with an external host computer (“open” cartridges), and cartridges for use only internal to the...
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7738210 |
Position control method of inertial drive actuator and inertial drive actuator
A position control method of inertial drive actuator includes a movement-amount setting step of setting an amount of movement, a target-position setting step of setting a target position of a...
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7733594 |
Storage device with pulsed motor torque
A system and method for overcoming adhesion between media and a surface of a storage device in contact with the media. A storage device comprises a media velocity detector and a media drive motor...
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7733595 |
Hard disk drive with external sensor interface, system for use thereof and method
A hard disk drive, its use and production are described. A read/write disk stores digital data. A spindle motor supports the read/write disk for controlled rotation thereof. A head arrangement...
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7729078 |
Information storage device
A drive section which moves a head above an information storage medium and a control section are provided, and each track on the information storage medium is made up of alternating first regions...
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7710675 |
Apparatuses and methods for pre-erasing during manufacture of magnetic tape
The present invention relates to direct current (“DC”) pre-erasing servo channels of a magnetic tape prior to writing servo data in a servo channel. The present invention particularly relates to ...
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7698057 |
Map display control apparatus, program product therefor, and method for controlling an in-vehicle navigation apparatus
An in-vehicle navigation apparatus is equipped with (i) an HDD for recording map data for display and, further, (ii) an external memory, which is not an HDD and in which the map data recorded in...
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7697230 |
Tape drive position control
In one embodiment a tape drive system comprises a reel adapted to engage a tape cartridge, the tape cartridge comprising a tape media having a servo code written along a length of the tape media, a...
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7697228 |
Apparatus, system, and method for interchange testing
An apparatus, system, and method are disclosed for interchanging testing. A test module moves a first tape from a tape pool to a first reserved slot of plurality of reserved slots using an...
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7672755 |
Library device
There is provided a library device which can be restored to working order quickly and reliably even when a control board containing information necessary for the operation of the library device is...
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7652838 |
Library device
A feeding mechanism includes a first feeding mechanism and a second feeding mechanism that operates during non-operation of the first feeding mechanism. A movement control unit that performs a...
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7623312 |
Hard disk drive off track event method and device
Methods and devices are shown that identify suitable second data operations after experiencing an off track event in a first data operation and perform the second data operations before correcting...
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7600709 |
Tape tension sensor
A tension sensor within a tape drive for measuring tension of a magnetic tape medium is provided. The tension sensor comprises a guide pin connected to a top plate for guiding the magnetic tape...
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7602569 |
Magnetic tape and magnetic tape cartridge
A magnetic tape which is run at a speed of 4 m/sec. or higher and has recording tracks with a width of 21 μm or less, and which includes a non-magnetic support, at least one magnetic layer formed ...
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7583463 |
Intelligent tape drive assembly that diagnoses and repairs its own tape drives
A tape drive assembly (20) for the transmission of data relative to a magnetic storage tape (278) includes a tape head (260), a cartridge receiver (268) and a controller (44). The cartridge...
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7571449 |
Disk changer device and barrier mechanism thereof
A barrier mechanism, which is often utilized in a disk changer device, is disclosed herein, in which the barrier mechanism includes two wheels and a barrier belt loop. The two wheels are...
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7535665 |
Servo writer and servo signal writing method
A servo writer for writing a servo signal in a running tape memory medium comprises: a head which is arranged in a vicinity of a running path of the running tape memory medium; and a pair of guides...
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7511908 |
Magnetic-polarity encoded servo position information for magnetic-based storage media
A magnetic storage media includes a magnetic south-north servo band section and a magnetic north-south servo band section. The magnetic south-north servo band section includes a magnetic south-pole...
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