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| Number | Title | Issue Date |
| 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 spindle motor driving circuit driving the spindle motor, a control cir... | 03/27/2012 |
| 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 corrects for these problems comprises a head having an array of at least... | 01/10/2012 |
| 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 control circuit is configured to electrically couple to piezoelectric d... | 12/13/2011 |
| 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 medium, a head actuator which includes a head for reading and writing d... | 11/22/2011 |
| 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 fall, the HDD unloads a head slider from above a disk to a stand-by posi... | 08/09/2011 |
| 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 method includes moving a sequential information storage medium having ... | 08/02/2011 |
| 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 less than a full tension that occurs when the tape is running, and one ... | 07/26/2011 |
| 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 medium includes a control system operable to cause i) a track reference di... | 03/22/2011 |
| 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 direction, writes data from a buffer to the tape storage medium, and ther... | 03/08/2011 |
| 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 servo readers arranged for reading a servo track associated with the ... | 01/25/2011 |
| 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 variable amounts of pressure on the surface of the tape. In another varia... | 12/28/2010 |
| 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 protrusions and recesses formed on the magnetic recording layer so that thin fi... | 08/24/2010 |
| 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 reel-to-reel tape drive that includes a length of magnetic tape at least ... | 07/27/2010 |
| 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 moving body, a position detection step of detecting a relative position of... | 06/15/2010 |
| 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 for writing in and reading out user information and second regions tha... | 06/01/2010 |
| 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 an off track event. Methods and device as shown provide increased eff... | 11/24/2009 |
| 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 on one surface of the non-magnetic support, and a backcoat layer form... | 10/13/2009 |
| 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 receiver (268) selectively receive... | 09/01/2009 |
| 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 which are disposed adjacent to the head in an upstream and downstrea... | 05/19/2009 |
| 7511911 | 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 (S93), the power source monitor circuit reads a detection signal from a detection circuit, and checks power sources (S94 | 03/31/2009 |
| 7486464 | 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 variable amounts of pressure on the surface of the tape. In another varia... | 02/03/2009 |
| 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 corresponding to the detected number of media from the default gain ta... | 10/28/2008 |
| 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 reel-to-reel tape drive that includes a length of magnetic tape at least ... | 10/07/2008 |
| 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 a control unit for controlling rotation of the rotary head drum and o... | 07/29/2008 |
| 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 portion of the tape extending between the reels and contacting a head be... | 06/24/2008 |
| 7359142 | Magazine-based data cartridge library The present invention provides a magazine-based data cartridge library that, in one embodiment, comprises a plurality of shelves that are capable of holding a plurality of data cartridge magazines, one or more drives, a magazine transport for moving magazines within... | 04/15/2008 |
| 7355805 | Magnetic tape and method of manufacturing magnetic tape, servo writer, and method of and apparatus for specifying servo band Data for specifying servo bands SB1 to SB5 is embedded in each servo signal S1 to S5 that is written on a plurality of servo bands SB1 to SB5 formed on a magnetic tape MT. ... | 04/08/2008 |
| 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 data of variable length in a buffer divided into fixed length segments... | 03/25/2008 |
| 7349175 | Media cartridge storage device for an autoloading data storage and retrieval system A cartridge storage device includes a housing having a front and a back. A plurality of cells are mounted in the housing, each cell adapted for receiving a media cartridge. A drive mechanism drives the cells towards a front opening in the front of the housing for al... | 03/25/2008 |
| 7342738 | Positioning head assembly for data storage system with multiple degrees of freedom The Invention Provides a Positioning 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 extend along a length of the medium. The invention makes use of multiple actuators t... | 03/11/2008 |
| 7340749 | Method and apparatus to detect presence of or a size of a data cartridge A media-detection system for a cartridge-receiving device may comprise, according to one embodiment, a cartridge-referencing member mounted to the cartridge-receiving device. The cartridge-referencing member is resiliently displaceable by a data cartridge received i... | 03/04/2008 |
| 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 track by track basis with an uncertain process of a read-ahead opera... | 02/19/2008 |
| 7333967 | Method and system for automatic computation creativity and specifically for story generation A computer-implemented method (and system) of automatically generating a story, includes selecting a theme of the story, examining elements of the theme and instantiating the theme, and using the theme to select and control other aspects of the story. ... | 02/19/2008 |
| 7321478 | Data transfer apparatus head cleaning A data transfer apparatus is described for transferring data between at least one transducer head of the data transfer apparatus and a data medium removably received in the data transfer apparatus. The data transfer apparatus is operable to monitor at least one data... | 01/22/2008 |
| 7311255 | Magnetic detection device A magnetic detection device has a roller unit to which conveying rollers are attached, a fixing unit that installs the roller unit movably in the direction to contact to or leave away from a magnetic head, and eccentric shafts that are provided rotatably between the... | 12/25/2007 |
| 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 a transition integrated circuit (TIC) that takes charge of the inter... | 12/25/2007 |
| 7310823 | Digital information recording apparatus and outputting apparatus A digital information recording apparatus includes multiple recording circuits for making multiple copies. The apparatus limits the number of copies, however, in accordance with copy information provided within the digital information itself. When the number of copi... | 12/18/2007 |
| 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: inserting a cylindrical hub into a center hole of the disk-shaped me... | 12/04/2007 |
| 7302501 | Peripheral data storage system with multi-state user display A method of displaying states of a peripheral data storage system (PDSS) comprising a data storage device, a data storage system controller, a user-actuated signaling subsystem, a user display subsystem adapted to display the states, and a peripheral data storage co... | 11/27/2007 |
| 7292405 | Data cartridge holder operable with a data cartridge library system Disclosed is a data cartridge library system capable of using a data cartridge holder. The data cartridge holder comprises a bottom and side walls wherein the side walls are attached to the bottom wall at one end and form a terminal edge at another. The terminal edg... | 11/06/2007 |
