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7443628 |
Storage apparatus, spindle motor control method, and program
A default gain table stores values of loop gain of a spindle motor control unit predetermined for each number of media. A loop gain setting unit detects the number of media, reads out a loop gain...
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7433146 |
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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7405895 |
Recording-reproducing apparatus and method of detecting dew condensation in recording-reproducing apparatus
A magnetic recording-reproducing apparatus having a rotary head drum around which a magnetic tape is wound for recording and reproducing signals on the magnetic tape, a tape loading mechanism, and...
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7391585 |
Method for reducing occurrences of tape stick conditions in magnetic tape
Disclosed is a method for reducing occurrences of stick conditions in tape, the method including stopping rotation of a supply reel and take-up reel of a drive that includes a length of tape, a...
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7350021 |
Method of controlling write and read of data for tape recording apparatus
A write/read control method for recording at least one datum on a magnetic tape within a predetermined distance is provided. The method includes sequentially accumulating a plurality of blocks of...
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7333284 |
Data access control apparatus, data access control method, controller, and computer program
A magnetic head accesses sectors of one track in the order starting with a sector where the magnetic head is put into an on-track state. A seek start timing is reliably determined by accessing on a...
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7312942 |
Mobile communication terminal and method of reducing power consumption of a hard disk drive of a mobile communication terminal
A mobile communication terminal and a method for reducing power consumption for driving a hard disk drive (HDD) of a mobile communication terminal are provided when controlling an interface between...
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7304820 |
Method of positioning disk-shaped medium
The method of positioning a disk-shaped medium is capable of precisely positioning the center of the disk-shape medium with respect to a center of a rotary shaft. The method comprises the steps of:...
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7289287 |
Apparatus for recording or/and reproducing information and method for reducing power consumption thereof
In an apparatus for recording and/or reproducing information, which reproduces servo information being recorded on a medium and conducts a tracking operation based on the servo information, a power...
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7283317 |
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...
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7280935 |
Dual sensor assemblies for positional output feedback
A system for precisely determining a position with resolution on the order of nanometers or sub-nanometers is described. In particular, a system is described that utilizes a first and a second...
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7274528 |
System and method for protecting head elements of a tape drive
A method and apparatus is provided to protect head elements on a head of a head guide assembly, having a magnetic tape, and a leader coupled to the magnetic tape at a first end, such that the...
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7245816 |
Method for designing envelope detecting circuit for video signal processing integrated circuit and integrated circuit using the same
In a method for designing an envelope detecting circuit for a video signal processing integrated circuit (IC), the number of peripheral components of the video signal processing IC is minimized by...
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7239468 |
Disk drive and control method for disk drive
After the power supply of a disk drive that uses a head to write data at any position on a disk or read data written at any position is turned on, the first initial conditions for the disk drive...
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7209308 |
Communication apparatus communicating with recording medium memory and recording medium drive apparatus
A system using a tape cassette ( 1 ) with a memory ( 4 ) as a recording medium is provided. In the memory ( 4 ) provided in the tape cassette ( 1 ) used in the system, there is formed a storage...
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7203021 |
Self-heating disk drive
Disclosed is a self-heating disk drive that comprises a voice coil motor (VCM), a spindle motor, and a temperature sensor. The VCM includes a VCM coil and the VCM is configured to move an actuator...
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7177532 |
Dual video player for disc jockeys
The video player for disc jockeys has a playback unit ( 100 ) and a control unit ( 200 ) in separate housings ( 102, 202 ). The playback unit has two video drives ( 110, 112 ) contained therein....
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7164250 |
Open-loop voltage driving of a DC motor
The driving voltage of the motor is incremented a quantity proportional to the speed of the motor according to a proportionality factor that is adjusted to compensate the back electromotive force....
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7159104 |
Simplified memory detection
Automatic recognition of the type of memory within a device package by using strap resistors within the device package. Such recognition enables a processor, such as a GPU, to automatically...
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7158339 |
Recording/ reproducing method and recording/reproducing apparatus for magnetic tape
A recording/reproducing method and a recording/reproducing apparatus for magnetic tapes are provided as a recording/reproducing technique suitable for recording density enhancement of magnetic...
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7142389 |
Tape drive
A tape drive of the present invention records data on a tape having a plurality of servo bands, where a servo signal is recorded in advance along a longitudinal direction, and a data band...
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7142386 |
Tape drive with microswitch protector
A tape drive has a microswitch, with a microswitch plunger, that interacts with a tape cartridge having a recess therein that is selectively closed or opened by a sliding element movable back and...
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7139147 |
Apparatus and method for drive control, and computer product
A drive control apparatus receives an instruction from an upper unit, to mount a predetermined medium onto a predetermined drive unit. If a combination of the predetermined medium and the...
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7127576 |
Method and system for data duplication
According to one embodiment of the invention, a system for duplicating data is provided. The system includes a first recorder having an operating clock speed. An output port of the first recorder...
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7126784 |
Concurrent data recording and reproducing method, seek operation control method and magnetic disk drive using the methods
In conventional magnetic disk drives where stream data are treated, seek operations are performed at unnecessarily high speeds. This put the magnetic disk drives at a disadvantage in suppressing...
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7119980 |
System and method for writing secure data to disk
Secure data is written to a disk during manufacture in such a way that it can be read but not copied. Methods include writing triangular transitions or very slow transitions from positive magnetic...
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7116507 |
Storage system having a power source state detection unit
A storage system capable of reducing the start-up time of disk drives is provided. If a power source monitor circuit itself is normal (S 93 ), the power source monitor circuit reads a detection...
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7116506 |
Automated data storage library magnetic tape diagnostic
Diagnostic information is provided in an automated data storage library which stores magnetic tape data storage cartridges. Uninitialized magnetic tape data storage cartridges are identified; a...
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7106539 |
Perpendicular magnetic recording apparatus
A perpendicular magnetic recording apparatus includes a perpendicular double-layered media having a substrate, a soft underlayer including a soft magnetic layer, an intermediate layer, and another...
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7106538 |
Library apparatus
A library apparatus includes a storage shelf that has a plurality of cells for housing a cartridge that stores a plurality of recording media; a recording and reproducing unit that performs...
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7099103 |
Methods for controlling the use of a cleaning cartridge for tape drives
In one exemplary aspect of the present invention a method for cleaning a media drive transducer head is provided. The method includes transporting a portion of a cleaning tape over a transducer...
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7099102 |
Multiple format magnetic storage media drive
Methods and systems are provided for receiving and streaming storage tape by a tape head from storage tape cartridges of varying formats in a single tape drive. In one example, an exemplary tape...
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7095201 |
Method and apparatus for providing a user selectable start-up current in a disk drive
A method and apparatus for providing a user selectable start-up current in a disk drive are provided. A user may select a relatively high start-up current to provide a relatively fast start-up time...
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7092191 |
Magnetic tape transport system generating air pressure between magnetic heads
Disclosed is a magnetic tape transport system which has multiple magnetic heads arranged parallel to each other that a magnetic tape slides in contact with, and which has a structure to prevent a...
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7088541 |
Mounting for disk drive unit and method of handling
A mounting for a disk drive unit includes a carrier for carrying a disk drive unit during required movement of the disk drive unit. The carrier defines a space into which the disk drive unit can be...
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7085095 |
Electromagnetic void-sensing probes and position control systems
In one aspect, an electromagnetic or capacitive sensing position system for determining the relative position of at least one void in a conductive material is provided. In one example, the system...
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7075874 |
Data storage device monitoring system, method and removable data carrier use with data storage systems
A data storage device comprises a removable and replaceable magnetic tape cassette provided with a software control write protect switch. The switch is adapted to have a first condition in which...
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7062158 |
Data recording/reproducing apparatus and program recorded medium
Management in a disk according to conventional techniques is effective in only one recording area which is the entire disk, and therefore, it has been heretofore impossible to manage files by data...
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7054097 |
Tape guiding techniques for a dual actuator read-while-write recording system
The invention provides a read-while-write recording system for a linear data storage medium, such as magnetic tape or other data storage medium in which data is stored on parallel data tracks that...
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7035033 |
Method and apparatus for reinitializing a tape drive after a power loss
A method and apparatus to quickly and correctly re-initialize a tape drive mechanism after power loss employs a non-volatile memory to store functional state data during normal operation of the...
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7031088 |
Apparatus and method for detecting an abnormality in a recorded signal
An apparatus for detecting an abnormality of a recorded signal of a recorder/player includes a plurality of recording/reproducing heads for recording/reproducing a signal onto/from a medium, and a...
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7027250 |
Magnetic tape head with thinfilm thermosensors for head-media interface temperature monitoring
A thinfilm magnetic head for tape drives that enables onsite, real time temperature monitoring of the head-media interface. The head includes a media interface contacting a data bearing surface of...
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7023645 |
Read error recovery method and apparatus
The present invention provides a method and apparatus for recovering data in a disk drive following a read error. At least a portion of the actuator arm tip is heated. Thermal expansion reduces the...
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7023642 |
Storage system for monitoring disk drive spin-up and reducing start-up time
A storage system capable of reducing the start-up time of disk drives is provided. If a power source monitor circuit itself is normal (S 93 ), the power source monitor circuit reads a detection...
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7019931 |
Tape drive apparatus
The present invention provides a tape drive apparatus enabled to directly and accurately detect dew condensation on a rotary head drum. Tape serving as a recording medium is drawn out of a...
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7016138 |
Tension feedback system for a tape drive
Tape drive systems and methods for operating tape drive systems are provided. The system includes a head assembly having a head element for reading or writing data to a magnetic tape medium, and a...
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7009798 |
Automated cartridge exchange system and method for high-density automated tape libraries
A system, method and program are disclosed for automatically exchanging tape cartridges between a plurality of automated tape libraries arranged in close proximity. The automated cartridge exchange...
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7006319 |
Media-detection system and method for identifying types of data cartridges
A media-detection system and method for identifying a type of data cartridge. According to one embodiment, the media-detection system comprises at least one indicator arm displaceable by at least...
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6989953 |
Disk drive and disk drive-containing device having selectively controllable spindle motor spin up profiles
A spindle motor in a disk drive is driven by a driving circuit that, upon receipt of a signal or command, selectively spins up the spindle motor according to a first spin up profile or according to...
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6975477 |
Micro actuator DC gain calibration scheme for HDD dual-stage actuator systems
A servo system for displacing a head relative to a disk of a hard disk drive. The servo system comprises a dual-stage actuator, a calibration signal generator, and a calibration factor generator....
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