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US20120099217 SPLIT SECTOR FORMATTING OF STORAGE DISKS  
A length of a separator to be skipped on the storage disk is compared with a threshold. The threshold is associated with a maximum value for which a timing loop is able to be paused without...
US20130100552 Servo Write Assembly  
A servo write apparatus, comprising a first servo write head configured to only encode a single first magnetic dibit onto a magnetic information storage medium, wherein the first magnetic dibit...
US20140268397 Hardware Support of Servo Format with Two Preamble Fields  
A hard disk drive uses a second, reference burst field in a preamble to estimate burst phase and burst magnitude. Such estimations are used for position error signal integration and repeatable...
US20080094742 Servo patterns for patterned media  
Servo patterns for patterned media. The servo pattern includes specification of cylinder/track ID with and without a Gray code. The servo pattern space is minimized by the optimum usage of the...
US20130155539 EXTENDED SERVO MARK  
An extended servo mark word is used when an error is detected from a servo mark. For example, a servo mark associated with a disk drive track may be detected during a data access operation. In...
US20070285819 Wireless inductive coupling assembly for a heated glass panel  
A wireless inductive coupling assembly for a heated glass panel assembly is provided that includes a metal oxide coated glass panel with a panel frame, an opening frame that cooperates with the...
US20140104718 AUTOMATED CLUSTER SIZE MEASUREMENT  
A cluster size measurement method includes writing a first pattern of a first size of a first number of magnetic clusters. A second pattern of a second size of a second number of magnetic clusters...
US20110304935 FLOATING GUARD BAND FOR SHINGLE MAGNETIC RECORDING  
A hard disk drive that includes a disk with data written onto a plurality of tracks, a spindle motor that rotates the disk, and a head that is coupled to the disk. The disk drive also includes a...
US20140340778 De-Duplication  
A method and apparatus for data de-duplication is disclosed. Use de-duplication engine (DDE) divides data into regions. The DDE processes the regions in a serial fashion. The DDE clears its hash...
US20130293981 SMART OPTIMIZATION OF TRACKS FOR CLOUD COMPUTING  
Optimization of tracks on a hard disk includes: determining I/O characteristics for data clusters to be stored on the hard disk; generating a set of solutions for each possible placement...
US20110176237 MAGNETIC TAPE SERVO FORMAT ALLOWING FOR INCREASED LINEAR TAPE DENSITY AND SYSTEMS THEREOF  
According to one embodiment, a magnetic recording tape includes a plurality of servo tracks, each servo track comprising a series of magnetically defined bars having an average height of between...
US20120262815 METHOD AND SYSTEM FOR DYNAMICALLY EXPANDABLE SOFTWARE BASED BAD BLOCK MANAGEMENT  
A method and system for tracking a sequence of bad blocks in a RAID system by storing the logical block address of the first bad block and the number of bad blocks in the sequence is disclosed....
US20080180826 METHOD FORMING SERVO SYNC MARK PATTERNS AND PREVENTING WRITE FAULTS IN HARD DISK DRIVE  
A method of forming a servo sync mark patterns on a disk is disclosed wherein alternating even-numbered and odd-numbered tracks are marked with a first servo sync mark pattern on the even-numbered...
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...
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...
US20080151407 Write omission detector, write omission detecting method, and computer product  
A device adaptor that controls a disk, wherein a storage area is divided into a plurality of blocks, detects a block that includes a read error. Next, the device adaptor detects a write omission...
US20130010382 PATTERNED MEDIA WITH AN ALTERNATING SERIES OF CONCENTRIC SERVO ZONES AND OVERLAP ZONES  
Embodiments described herein provide for patterned media concentric zones with an alternating series of concentric servo zones and overlap zones. The overlap zones facilitate the writing of servo...
US20120212852 DETERMINING A REFERENCE WAVEFORM USED BY A CORRELATOR IN A SERVO CHANNEL  
Provided are a method, servo channel, and tape drive for determining a reference waveform used by a correlator in a servo channel. Sequences of servo signal samples are provided from read servo...
US20090310240 CODING TECHNIQUE FOR CORRECTING MEDIA DEFECT-RELATED ERRORS AND RANDOM ERRORS  
A method of writing data on a storage medium that takes into account a condition of the storage medium. The method includes receiving data to be written on a portion of a storage medium and...
US20080037154 HIGH AREAL DENSITY TAPE FORMAT AND HEAD  
A magnetic head having a tape bearing surface according to one embodiment includes a plurality of writers, each writer having first and second poles each having a pole tip positioned towards the...
US20070242379 Defect reallocation for data tracks having large sector size  
A method is provided. The method includes determining that a data sector included in a select data track is in error, the data sector in error includes at least one identified data wedge. The at...
US20110026155 PATTERNED-MEDIA MAGNETIC RECORDING DISK WITH CRYPTOGRAPHICALLY SCRAMBLED PATTERNS AND DISK DRIVE OPERABLE WITH THE DISK  
Patterned-media magnetic recording disks are made from a master template that has nondata regions that contain a pattern of one or more discrete nondata islands and discrete gaps, with the pattern...
US20140126078 MAGNETIC WRITER HAVING MULTIPLE GAPS WITH MORE UNIFORM MAGNETIC FIELDS ACROSS THE GAPS  
A magnetic device according to one embodiment includes a source of flux; a magnetic pole having two or more gaps; and a low reluctance path positioned towards at least one of the gaps and riot...
US20150070797 MAGNETIC TAPE MEDIA HAVING SERVO PATTERNS  
Magnetic tape media according to one embodiment includes a servo track having a plurality of servo marks therealong. A distance of the servo marks, as originally written, from an edge of the tape...
US20150062740 TAPE STORAGE SYSTEM  
A tape storage medium includes a tape head for reading/writing data from/to a tape storage medium. At least one servo band along a longitudinal extension of the tape storage medium determines...
US20140268393 LOGICIAL BLOCK PROTECTION FOR TAPE INTERCHANGE  
A two part process is used for modifying records to be written and retrieved from tape devices. A record is appended with a cyclic redundancy check and a string of zeros. Submitting the entire...
US20150062738 Systems and Methods for Variable Sector Count Spreading and De-Spreading  
Systems and method relating generally to data processing, and more particularly to systems and methods for encoding and decoding information.
US20130114159 METHOD OF WRITING A PREAMBLE FIELD ON A DISK DRIVE TO REDUCE TRACK SQUEEZE  
Preamble fields are written on a storage disk in a hard disk drive in a way that reduces track squeeze. Preamble fields for a particular data storage track on the storage disk are written over...
US20070053093 Track Defect Map for a Disk Drive Data Storage System  
A method and apparatus for storing a disk drive media defect table or list. Defect table entries for a subject disk track are stored on the subject track and retrieved for determining defective...
US20100172048 Servo patterns for patterned media  
Servo patterns for patterned media. The servo pattern includes specification of cylinder/track ID with and without a Gray code. The servo pattern space is minimized by the optimum usage of the...
US20090180208 Application specific processor based disk formatter  
A disk formatter in a disk drive having a main control processor for performing functions relating to transfer of data between a host and at least one disk medium, includes a processor for...
US20110080668 CLOSELY COUPLED VECTOR SEQUENCERS FOR A READ CHANNEL PIPELINE  
A system and method involving a read channel pipeline having a plurality of vector sequencers that may be used to control the processing blocks. In one embodiment, a read channel pipeline may...
US20150062741 HIGH DENSITY TIMING BASED SERVO FORMAT  
A product according to one embodiment includes a magnetic recording tape having opposite ends and at least one servo track, a longitudinal axis of the magnetic recording tape being defined between...
US20060018051 Vertical track zoning for disk drives  
A method of defining storage format in a data storage device having a plurality of storage media and a plurality of corresponding data transducer heads, each transducer head for recording on and...
US20140211337 Systems and Methods for Improved Short Media Defect Detection  
Various embodiments of the present invention provide systems and methods for media defect detection.
US20090046386 DATA FORMATTING IN DATA STORAGE  
A method of processing data comprising arranging data into a data group comprising a plurality of sub groups each said subgroup comprising a plurality of columns; for each column, determining at...
US20140281818 Method for Format Savings in Coherently Written Fragmented Sectors  
A method and system for performing a shortened acquire cycle for at least one fragment of at least one data sector having coherently written fragments, the coherently written fragments being...
US20060007574 Perpendicular recording patterned disk medium and magnetic disk drive loaded with patterned disk medium  
A patterned disk medium having a first surface and a second surface opposed to the first surface, includes a data pattern area formed in advance on each of the first surface and the second...
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...
US20080204915 PATTERNED MAGNETIC RECORDING MEDIUM WITH DATA ISLAND PATTERN FOR IMPROVED READING AND WRITING AND MAGNETIC RECORDING SYSTEM INCORPORATING THE MEDIUM  
A patterned magnetic recording medium has discrete data islands arranged in spaced-apart tracks, with the tracks being arranged in multi-track groups or “hypertracks”. The islands have an equal...
US20080304172 DATA STORAGE MEDIUM HAVING SYSTEM DATA STORED IN A GUARD BAND BETWEEN ZONES OF CONSECUTIVE DATA STORAGE TRACKS  
A storage medium format is provided having a first band of a plurality of consecutive data storage tracks having user data stored thereto, a second band of a plurality of consecutive data storage...
US20140218818 METHOD FOR REDUCING VARIATION RANGE OF SKEW ANGLE OF MAGNETIC WRITING POLE AND MAGNETIC WRITING POLE USING THE METHOD  
A method for reducing skew angle variation range in a shingled magnetic recording system, the method including the following steps: 1) determining whether a starting magnetic track is in an inner...
US20120300331 Security erase of a delete file and of sectors not currently assigned to a file  
Secure erase of files and unallocated sectors on storage media such that any previous data is non-recoverable. The database contains sets of data patterns used to overwrite the data on different...
US20140153127 DISK STORAGE APPARATUS AND METHOD FOR SERVO CONTROLLING  
According to one embodiment, a disk storage apparatus includes an interrupt controller and a servo controller. The interrupt controller determines whether or not to carry out servo interrupt...
US20060215310 Systems and methods for encoding identifying information on a surface of a rotatable medium  
Systems and methods in accordance with embodiments of the present invention can be applied to encode non-servo information on a rotatable medium connected with a data storage device. For example,...
US20090021853 Hard Disk Drive with Divided Data Sectors and Hard Disk Drive Controller for Controlling the Same  
A hard disk drive controller includes a buffer block temporarily storing recording data received from a host or reproduced data to be output to the host. A formatter outputs the recording data or...
US20080062553 Disk recording medium and information recording apparatus  
In the case of a magnetic head tracing a record track from the left to right, a positional demodulation signal obtained by passing a first servo sector existing in the record track is minutely...
US20130222940 MAGNETIC TAPE SERVO FORMAT ALLOWING FOR INCREASED LINEAR TAPE DENSITY AND SYSTEMS THEREOF  
In one general embodiment, a magnetic recording tape includes a plurality of servo tracks, each servo track comprising a series of magnetically defined bars, wherein an average stripe width of the...
US20090002868 Read after write enhancement for bit patterned media  
A read/write head for use with bit-patterned media detects write synchronization errors between a write clock and the bit-patterned media. In particular, the read/write head writes data to the...
US20100142076 PATTERNED-MEDIA MAGNETIC RECORDING DISK WITH CRYPTOGRAPHICALLY SCRAMBLED PATTERNS AND DISK DRIVE OPERABLE WITH THE DISK  
Patterned-media magnetic recording disks are made from a master template that has nondata regions that contain a pattern of one or more discrete nondata islands and discrete gaps, with the pattern...

Matches 1 - 50 out of 240 1 2 3 4 5 >