Matches 1 - 50 out of 121 1 2 3 >


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US20110205657 SYNCHRONIZATION OF SYMMETRIC TIMING BASED SERVO BURSTS  
Timing based servo bursts of servo frames, in which the frames are arranged to be symmetric with the same number of servo stripes in each burst of a frame, are synchronized by shifting selected...
US20090303633 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...
US20140036386 TIMING-BASED SERVO FOR DETERMINING LATERAL HEAD VELOCITY  
A servo track has servo pattern frames including two pairs of parallel transitions, the transitions of each pair spaced apart an equal distance, the first pair at an azimuth angle, the second pair...
US20140022667 TIMING-BASED SERVO FOR DETERMINING LATERAL HEAD VELOCITY  
A servo track has identical servo pattern frames including two pairs of parallel magnetic transitions, the transitions of each pair spaced apart an equal distance, the transitions of the first...
US20100328802 Servo Write Head Gap Width Correction  
Embodiments include methods, apparatus, and systems for servo write head gap width correction. One method includes measuring a pulse mismatch for servo stripes on magnetic tape written with a...
US20090279201 JOINT SPECIFICATION OF SERVO FORMAT AND SERVO READER PARAMETERS FOR TAPE DRIVE SYSTEMS  
A servo pattern, including stripes arranged in servo bursts for use in position error signal (PES) generation, is provided in which a stripe width is narrower than 1.7 μm and in which the stripes...
US20090116140 SYSTEM FOR ADJUSTING MISALIGNMENT BETWEEN A READ/WRITE HEAD AND A FLEXIBLE DATA STORAGE MEDIA  
A system for adjusting misalignment between a read/write head and a flexible data storage media is provided. The system includes a head carriage assembly, a linear assembly that includes a pivot...
US20120147496 SERVOMECHANISM WITH ADJUSTABLE PREDICTOR FILTER  
A digital control system, and in particular a tape drive system having a track-following servomechanism with a predictor (also referred to herein as a predictor filter), is described. In certain...
US20110043945 SERVOMECHANISM WITH ADJUSTABLE PREDICTOR FILTER  
A digital control system, and in particular a tape drive system having a track-following servomechanism with a predictor (also referred to herein as a predictor filter), is described. In certain...
US20110007418 COMBINING INFORMATION FROM PARALLEL SERVO CHANNELS  
A weighted combining scheme exploits information from two servo channels operating in parallel. A timing-based servo module comprises two synchronous servo channels coupled respectively to receive...
US20110075293 Coatings For Tape Guides  
A guide for guiding a magnetic data storage tape has a curved support portion for supporting a major tape surface and at least one flange adjoining the support portion. At least in a region of...
US20150199986 COARSE ACTUATOR POSITIONING ALGORITHM  
A method according to one embodiment includes generating or receiving a value representative of a lateral position of a tape. The value is used to adjust a position of a coarse actuator in...
US20090279202 HEAD DESIGN FOR WRITING SERVO PATTERNS ON MAGNETIC TAPE  
A servo write head is provided and is configured to simultaneously write at least two servo patterns in respective servo bands on linear magnetic tape. Centerlines of the servo patterns are...
US20110109988 SYSTEMS AND METHODS FOR COMPENSATING FOR CROSSTALK BETWEEN NEARBY WRITERS  
A recording system controller according to one embodiment includes a controller capable of selecting a level of a current or voltage applied to a first writer during the creation of a magnetic...
US20090002877 MEDIA PRESERVATION FOR INFORMATION TRANSDUCING DRIVE  
An information transducing drive performs information transducing operations with respect to transducable media. In an example embodiment the drive comprises an information transducer (30); a...
US20080158719 LINEAR TAPE DRIVE MODULE FOR A LINEAR TAPE DRIVE SYSTEM  
A linear tape drive system includes a tape having a path direction, a data track having data transitions at an azimuthal orientation relative to the path direction, and a servo track having servo...
US20090174963 TAPE-BASED DATA STORAGE SYSTEM AND HEAD ENABLING COMPOUNDED READING RATE  
A tape-based data storage system according to one embodiment comprises a head having at least two modules, each of the modules having an array of readers and writers, wherein at least some of the...
US20080117539 Tape Cartridge Having Tape Media With Longitudinally Shifted Servo Pattern for Increased Sampling Rate  
A magnetic tape cartridge including magnetic tape with servo information is provided. The servo information comprises a plurality of parallel longitudinal servo bands that lie between a plurality...
US20090316296 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...
US20050195510 Feedback-controlled optical servo writer  
A system for calibrating servo marks formed in a tape medium includes an emitter for directing a beam of radiation toward the medium to form one or more servo marks. A detector detects the images...
US20090161249 MAGNETIC TAPE, MAGNETIC TAPE APPARATUS, SERVO PATTERN RECORDING APPARATUS, MAGNETIC TAPE PRODUCING METHOD, AND MAGNETIC TAPE RECORDING METHOD  
Provided is a magnetic tape that includes a data band, including servo patterns, data, and a guard space. The servo patterns is formed along a longitudinal direction of the magnetic tape with an...
US20140063650 ACCURATE RADIUS AND VELOCITY MEASUREMENT OF TAPE TRANSPORTS  
A method according to one embodiment includes selecting an initial radius value (Rfull) for an outgoing reel, where Rfull is the initial radius of a tape on the outgoing reel; unwinding the tape...
US20110102937 POSITIONING COARSE SERVO ACTUATOR OF TAPE SERVO SYSTEM TO ALLOW FINE SERVO ACTUATOR TO FOLLOW TAPE SHIFT EXCURSIONS  
Methods, servo systems, and data storage drives follow the lateral shift excursions of longitudinal tape, for example, from flangeless tape guides. A servo sensor is configured to sense lateral...
US20110216440 POSITIONING A COARSE ACTUATOR OF COMPOUND ACTUATOR TAPE SERVO SYSTEM AT MIDPOINT OF MAXIMUM PEAKS OF LATERAL TAPE MOVEMENT  
Where a tape is subject to lateral shift excursions from one side of a head to another, a coarse actuator is positioned laterally to enable a fine actuator to follow lateral motion of a...
US20110199701 SKEW ACTUATOR TO SERVO TRACK ZERO REFERENCE  
A servo detection system for detecting servo tracks of a longitudinal tape. In a read/write head, two servo read heads are spaced laterally on a first head module, and a servo read head is on a...
US20140063649 DYNAMICALLY CONTROLLING TAPE VELOCITY  
A maximum velocity is dynamically determined during a tape drive operation to obtain a statistical standard deviation of a position error signal (PES) that yields an amount of stopwrite (SW)...
US20140126082 FAST RECOVERY TO A WRITE STATE  
Aspects of the present invention relate to an apparatus and corresponding method that includes transitioning from a monitor state to a stop write state when a determined position error is greater...
US20120281309 REDUCING A NOISE COMPONENT ASSOCIATED WITH MOVEMENT OF A MOVEABLE PART  
An output is generated in response to an indication associated with movement of a moveable part in a storage device. The output is for reducing a noise component associated with the movement of...
US20120314322 Erasure and Servowriting of Magnetic Storage Media having Perpendicular Anisotropy  
Magnetic storage tape and techniques for erasing and writing to magnetic storage tape having a perpendicular squareness greater than 50 percent and a longitudinal squareness less than 50 percent...
US20090296268 SYSTEM AND METHOD FOR CONTROLLING TRAVELING OF TAPE  
A system and method for controlling the traveling of a tape is provided. The system and method include passing data in a buffer to a channel input/output unit for writing the data to a tape. Once...
US20090109566 MAGNETIC TAPE  
A magnetic tape of the present invention includes a plurality of data bands in which a data signal can be recorded and servo pattern portions composed of a burst signal. The servo pattern portions...
US20110134556 Detection and Acquisition of a Servo Pattern Subject to Lateral Motion  
A method, a servo system and a tape drive are provided to acquire lock on a servo signal. The servo signals of at least one servo element are monitored to detect a valid servo signal. If a valid...
US20080144211 Servo techniques that mitigate an effect of read and write velocity variations on position error signal calculations  
In general, the invention is directed to servo techniques that make use of time-based servo patterns that can substantially mitigate error in a position error signal (PES) calculation resulting...
US20090213489 METHOD AND SYSTEM FOR SERVO STRIPE WIDTH DETECTION AND COMPENSATION  
A method and system for servo stripe width detection and compensation including moving a magnetic tape in a first direction across a magnetic tape head, the magnetic tape having a servo band...
US20090174964 SERVO CHANNEL FOR TAPE DRIVE SYSTEMS  
Provided are techniques for synchronous servo channel for a data tape drive. A servo reader is configured to read servo bursts from a data tape. An anti-aliasing filter is operable to output a...
US20100226039 COMBINING INFORMATION FROM PARALLEL SERVO CHANNELS  
A weighted combining scheme exploits information from two servo channels operating in parallel. A timing-based servo module comprises two synchronous servo channels coupled respectively to receive...
US20070230033 Identifying error built into a medium  
An apparatus includes plural spaced apart sensors arranged along a direction of motion of a medium, and a processing circuit to receive signals from the sensors, determine a difference of the...
US20080117542 Method and System for Providing a Longitudinally Shifted Servo Pattern for Increased Sampling Rate  
A method and a system are provided for writing a plurality of servo bands on magnetic tape. The magnetic tape is moved longitudinally relative to at least one servo write head. The servo write...
US20060092545 Servo writer  
Disclosed is a servo writer in which a servo write head is easy to exchange, and which writes, to magnetic tapes, a servo signal from which a reading signal of the improved SN ratio can be...
US20120307401 SYSTEM AND METHOD FOR FAST CENTER CALIBRATION OF A TAPE DRIVE FOR A FLANGELESS TAPE PATH  
A servo system according to one embodiment includes at least one servo sensor for sensing a lateral position of a magnetic head with respect to at least one defined servo track of a longitudinal...
US20080259490 MAGNETIC TAPE DRIVING APPARATUS  
A magnetic tape driving apparatus of the present invention includes a support member for separating a magnetic tape from a magnetic head on at least one of a tape input side and a tape output side...
US20060103968 Dynamic skew compensation systems and associated methods  
In one example, a system for positioning a transducer head to a storage medium is provided. The system includes a transducer head assembly including read/write elements, at least one actuator for...
US20100014188 METHOD AND APPARATUS FOR APPROACHING A PREDETERMINED POSITION OF A CARRIER BELT WHICH MOVES IN ONE MOVEMENT DIRECTION  
The invention relates to a method for moving to a predetermined position of a carrier tape 2 moving continuously in a displacement direction, wherein a displacement head 4 is moved to the...
US20080285171 SERVO SIGNAL RECORDING APPARATUS, SERVO SIGNAL RECORDING METHOD, AND MAGNETIC TAPE  
A servo signal recording apparatus and servo-signal recording method for recording a servo signal on a magnetic tape that includes a magnetic layer having a data area capable of storing data and a...
US20100226037 COMBINING INFORMATION FROM PARALLEL SERVO CHANNELS  
A weighted combining scheme exploits information from two servo channels operating in parallel. A timing-based servo module servo module comprises two servo channels coupled respectively to...
US20110292539 MAGNETIC TAPE DRIVING APPARATUS, MAGNETIC TAPE DRIVING METHOD  
A magnetic tape driving apparatus, which does not cause damage to either a magnetic head or a magnetic tape when making transition of the magnetic tape from a stopped state to a running state,...
US20110199703 MAGNETIC-TAPE DRIVE AND MAGNETIC-TAPE HEAD COMPATIBLE WITH MULTIPLE TAPE FORMATS  
Embodiments of the present invention are directed to the design and implementation of backward-compatible magnetic tape drives (102) that are read/write compatible with a current magnetic-tape...
US20090237833 MAGNETIC TAPE APPARATUS USING PERPENDICULAR MAGNETIC RECORDING  
Provided is a magnetic tape apparatus using perpendicular magnetic recording, which has the function corresponding to an soft-magnetic under layer with sufficiently large thickness and enables the...
US20120050910 MAGNETIC HEAD TRACKING CONTROL METHOD, SERVO SIGNAL VERIFICATION METHOD, MAGNETIC TAPE DRIVE, AND SERVO WRITER  
A servo signal in which a magnetic pattern composed of a first portion magnetized in one direction that is one of two opposite thickness directions and a second portion magnetized in a direction...
US20110216441 APPLICATION OF CONTINUOUS POSITION ERROR OFFSET SIGNAL TO ACQUIRE SERVO TRACK  
The method employs a servo system for positioning a head laterally to follow lateral motion of a longitudinal tape having longitudinal defined servo track(s), the servo system comprising a servo...

Matches 1 - 50 out of 121 1 2 3 >