SG68665A1 - Timing based servo longitudinal addressing - Google Patents

Timing based servo longitudinal addressing

Info

Publication number
SG68665A1
SG68665A1 SG1998001069A SG1998001069A SG68665A1 SG 68665 A1 SG68665 A1 SG 68665A1 SG 1998001069 A SG1998001069 A SG 1998001069A SG 1998001069 A SG1998001069 A SG 1998001069A SG 68665 A1 SG68665 A1 SG 68665A1
Authority
SG
Singapore
Prior art keywords
timing based
based servo
servo longitudinal
addressing
longitudinal addressing
Prior art date
Application number
SG1998001069A
Other languages
English (en)
Inventor
Thomas Robert Albrecht
Carl Barrett
James Howard Eaton
Robert Allen Hutchins
Glen Alan Jaquette
Original Assignee
Ibm
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ibm filed Critical Ibm
Publication of SG68665A1 publication Critical patent/SG68665A1/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/107—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating tapes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers
SG1998001069A 1997-05-16 1998-05-15 Timing based servo longitudinal addressing SG68665A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/859,830 US5930065A (en) 1997-05-16 1997-05-16 Timing based servo longitudinal addressing

Publications (1)

Publication Number Publication Date
SG68665A1 true SG68665A1 (en) 1999-11-16

Family

ID=25331816

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1998001069A SG68665A1 (en) 1997-05-16 1998-05-15 Timing based servo longitudinal addressing

Country Status (5)

Country Link
US (1) US5930065A (ko)
JP (1) JP3996266B2 (ko)
KR (1) KR100278433B1 (ko)
CN (1) CN1181470C (ko)
SG (1) SG68665A1 (ko)

Families Citing this family (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0940812B1 (en) * 1998-03-04 2006-11-15 Hewlett-Packard Company, A Delaware Corporation Absolute longitudinal position encoding in linear tape systems
US6111719A (en) * 1998-03-06 2000-08-29 Hewlett-Packard Company Linear speed measurement independent of lateral position in linear tape systems
US6304407B1 (en) * 1998-10-27 2001-10-16 Maxtor Corporation Self-writing of servo patterns based on printed reference pattern in rotating disk drive
US6542325B1 (en) 1999-03-10 2003-04-01 Imation Corp. Time-based servo for magnetic storage media
US6532128B1 (en) * 1999-05-19 2003-03-11 International Business Machines Corporation Data set to recording media registration and synchronization
US6571205B1 (en) * 1999-07-07 2003-05-27 Nortel Networks Limited Method and apparatus for transferring information between devices using a tape drive
US6239939B1 (en) * 1999-08-09 2001-05-29 International Business Machines Corporation Robust detection of data modulated into a timing based servo
US6496328B1 (en) 1999-12-30 2002-12-17 Advanced Research Corporation Low inductance, ferrite sub-gap substrate structure for surface film magnetic recording heads
US6545834B1 (en) * 2000-04-10 2003-04-08 Storage Technology Corporation Method and apparatus for dimensional tape width compensation in a tape drive system
JP2002074631A (ja) * 2000-08-16 2002-03-15 Internatl Business Mach Corp <Ibm> テープ・ドライブおよびそのサーボ・システム安定化方法
US6771456B2 (en) 2001-05-31 2004-08-03 International Business Machines Corporation System and method for miniaturization of read/write heads
US6781778B1 (en) * 2001-07-16 2004-08-24 Imation Corp. Time-based sectored servo data format
US6754022B1 (en) 2001-07-16 2004-06-22 Imation Corp. High-speed current driver
US6762900B2 (en) * 2001-07-17 2004-07-13 International Business Machines Corporation Method and apparatus for performing position error signal conditioning of LTO media servo format written-in velocity variation
US7072133B1 (en) 2001-10-15 2006-07-04 Imation Corp. Servo mark verify head
JP2003157634A (ja) * 2001-11-19 2003-05-30 Fuji Photo Film Co Ltd サーボ信号書き込み方式
US6873487B2 (en) * 2001-11-26 2005-03-29 Imation Corp. Hybrid servopositioning systems
US6710967B2 (en) * 2001-12-28 2004-03-23 Storage Technology Corporation High frequency and low frequency servo pattern
US6744594B2 (en) 2001-12-28 2004-06-01 Storage Technology Corporation Servo write head with gaps for writing high and low frequency transitions
US6950269B1 (en) 2002-01-18 2005-09-27 Imation Corp. System and methods for using servopositioning signals
US6879457B2 (en) * 2002-02-13 2005-04-12 International Business Machines Corporation Timing based servo with fixed distances between transitions
US6999258B2 (en) * 2002-03-01 2006-02-14 Imation Ccorp. Time-based servopositioning systems
US6735039B1 (en) 2002-03-29 2004-05-11 Imation Corp. Linear positioning encoding in amplitude-based servopositioning systems
US6970312B2 (en) * 2002-12-23 2005-11-29 Imation Corp. Full amplitude time-based servopositioning signals
US7139151B2 (en) * 2003-03-03 2006-11-21 Imation Corp. Band identification in time-based servopositioning formats
JP4157412B2 (ja) * 2003-04-15 2008-10-01 富士フイルム株式会社 磁気テープおよびその製造方法、サーボライタ、ならびにサーボバンドの識別方法および装置
US7106544B2 (en) * 2003-05-09 2006-09-12 Advanced Research Corporation Servo systems, servo heads, servo patterns for data storage especially for reading, writing, and recording in magnetic recording tape
US6982846B2 (en) * 2003-05-19 2006-01-03 International Business Machines Corporation Tamper resistant write once recording of a data storage cartridge having rewritable media
US7002763B2 (en) * 2003-08-08 2006-02-21 International Business Machines Corporation Identification of laterally positioned servo bands employing differentiating characteristics of servo patterns
US6937413B2 (en) * 2003-08-08 2005-08-30 International Business Machines Corporation Tape servo information with superimposed data information providing servo band identification
US8144424B2 (en) 2003-12-19 2012-03-27 Dugas Matthew P Timing-based servo verify head and magnetic media made therewith
US7199957B2 (en) * 2004-03-30 2007-04-03 Imation Corp. Write head alignment for full amplitude time-based servo
JP2007536683A (ja) 2004-05-04 2007-12-13 アドバンスト・リサーチ・コーポレーション 任意形状のギャップ・パターンのための集積型薄膜サブギャップ／サブ磁極構造、磁気記録ヘッド、及びその製造方法
US7206170B2 (en) * 2004-05-19 2007-04-17 Imetion Corp. Thin film servo head apparatus with canted servo gaps
US7158338B2 (en) * 2004-05-24 2007-01-02 Quantum Corporation Servo track having periodic frames of tone field and embedded synchronization marks
US7394618B2 (en) * 2004-09-10 2008-07-01 International Business Machines Corporation System and method for cleaning a tape drive
JP2006092586A (ja) * 2004-09-21 2006-04-06 Fuji Photo Film Co Ltd サーボ信号検査装置およびサーボ信号検査方法
US7573664B2 (en) * 2004-12-03 2009-08-11 International Business Machines Corporation Integrated multiple channel data reliability testing for a magnetic tape drive
US7362525B2 (en) * 2005-07-22 2008-04-22 Quantum Corporation PRML based magnetic servo position demodulator
US7369342B2 (en) * 2005-11-22 2008-05-06 International Business Machines Corporation Peak detection for magnetic tape timing based servo
US7428118B2 (en) * 2005-11-28 2008-09-23 Quantum Corporation LTM compensation methods and systems for magnetic servo writing
US7535668B2 (en) * 2006-08-28 2009-05-19 International Business Machines Corporation Modulated timing based servo pattern strings for magnetic-based storage media
US20080144211A1 (en) * 2006-12-18 2008-06-19 Weber Mark P Servo techniques that mitigate an effect of read and write velocity variations on position error signal calculations
US7495859B2 (en) * 2007-02-20 2009-02-24 Imation Corp. Interleaved servo pattern
US7477474B2 (en) 2007-03-28 2009-01-13 Quantum Corporation Servo writing and decoding position error signal for linear tape drives
US7652839B2 (en) * 2007-04-26 2010-01-26 Hitachi Global Storage Technologies Netherlands B.V. Magnetic recording disk with identical servo patterns formed on each disk surface by single master template and disk drive using the disk
US7466506B1 (en) 2007-06-19 2008-12-16 Hitachi Global Storage Technologies Netherlands B.V. Magnetic recording disk drive with head positioning servo control system for disk surfaces with identical servo patterns
US7758981B2 (en) * 2007-07-25 2010-07-20 Hitachi Global Storage Technologies Netherlands B.V. Method for making a master disk for nanoimprinting patterned magnetic recording disks, master disk made by the method, and disk imprinted by the master disk
US7605992B2 (en) * 2008-01-28 2009-10-20 International Business Machines Corporation Robust LPOS detection with predictor and bit verifier
US7903368B2 (en) * 2008-02-01 2011-03-08 International Business Machines Corporation Tape cartridge having tape media with longitudinally shifted servo pattern for increased sampling rate
US7529061B2 (en) * 2008-02-01 2009-05-05 International Business Machines Corporation Tape drive for maintaining lateral position utilizing longitudinally shifted servo pattern with increased sampling rate
US7920356B2 (en) * 2008-02-01 2011-04-05 International Business Machines Corporation Method and system for providing a longitudinally shifted servo pattern for increased sampling rate
US7787204B2 (en) * 2008-03-20 2010-08-31 International Business Machines Corporation Error correction coding of longitudinal position information
WO2009121073A1 (en) 2008-03-28 2009-10-01 Advanced Research Corporation Thin film planar arbitrary gap pattern magnetic head
US7881008B2 (en) * 2008-05-09 2011-02-01 International Business Machines Corporation Joint specification of servo format and servo reader parameters for tape drive systems
US7864487B2 (en) * 2008-05-09 2011-01-04 International Business Machines Corporation Head design for writing servo patterns on magnetic tape
US7957089B2 (en) * 2008-06-05 2011-06-07 International Business Machines Corporation Servo pattern architecture and method using same to improve LPOS encoding efficiency
US8003236B2 (en) * 2008-06-17 2011-08-23 Hitachi Global Storage Technologies Netherlands B.V. Method for making a master mold with high bit-aspect-ratio for nanoimprinting patterned magnetic recording disks, master mold made by the method, and disk imprinted by the master mold
US8059361B2 (en) * 2009-01-12 2011-11-15 Hewlett-Packard Development Company, L.P. Position signal processor
US8054575B2 (en) * 2009-01-12 2011-11-08 Hewlett-Packard Development Company, L.P. Position signal processor
WO2010126494A1 (en) * 2009-04-29 2010-11-04 Hewlett-Packard Development Company, L.P. Arrangement and processing of longitudinal position information on a data storage medium
US8331055B2 (en) * 2009-07-09 2012-12-11 International Business Machines Corporation Control method and apparatus for a dual-channel weighted LPOS combining scheme
US8767331B2 (en) 2009-07-31 2014-07-01 Advanced Research Corporation Erase drive system and methods of erasure for tape data cartridge
US7961424B2 (en) * 2009-10-30 2011-06-14 International Business Machines Corporation Multilevel pulse position modulation for efficient encoding of information into servo patterns
US8054568B2 (en) * 2010-02-24 2011-11-08 International Business Machines Corporation Synchronization of symmetric timing based servo bursts
GB2496006A (en) * 2011-10-28 2013-05-01 Ibm Longitudinal position information on a magnetic tape media
US10033961B2 (en) 2013-04-24 2018-07-24 Group 47, Inc. Storage system using unformatted digital optical tape
US9208813B2 (en) 2013-04-24 2015-12-08 Group 47, Inc. Digital optical tape storage system
US8773795B1 (en) 2013-06-20 2014-07-08 International Business Machines Corporation Products with tape formats having one or more spare areas and apparatuses configured for use with such products
US9171563B1 (en) 2014-09-30 2015-10-27 International Business Machines Corporation Recording medium having independent track for velocity, timing and/or longitudinal position
JP6945694B2 (ja) * 2018-05-28 2021-10-06 富士フイルム株式会社 磁気テープカートリッジ、磁気テープカートリッジの製造方法、磁気テープカートリッジの製造装置、記録再生装置、及び制御方法
US11367459B2 (en) * 2019-10-28 2022-06-21 Quantum Corporation Total dimensional stability compensation system and method for magnetic tape drive

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549232A (en) * 1983-06-27 1985-10-22 International Business Machines Corporation Phase modulated servo system
US5003412A (en) * 1987-10-30 1991-03-26 Brier Technology, Inc. Method and apparatus for positioning a read/write mechanism
US5608587A (en) * 1993-08-06 1997-03-04 Seagate Technology, Inc. Method using magnetic disk servo pattern with buried identification patterns
US5689384A (en) * 1994-06-30 1997-11-18 International Business Machines Corporation Timing based servo system for magnetic tape systems
KR100195182B1 (ko) * 1995-11-08 1999-06-15 윤종용 서보 필드 단축 하드 디스크 드라이버 및 그 구동방법

Also Published As

Publication number Publication date
KR100278433B1 (ko) 2001-03-02
CN1181470C (zh) 2004-12-22
CN1199901A (zh) 1998-11-25
JPH10334435A (ja) 1998-12-18
KR19980087143A (ko) 1998-12-05
US5930065A (en) 1999-07-27
JP3996266B2 (ja) 2007-10-24

Similar Documents

Publication Publication Date Title
SG68665A1 (en) Timing based servo longitudinal addressing
IL123129A (en) Www addressing
HU9801045D0 (en) Substituted diamino-carboxylic acids
GB9807199D0 (en) Application head
GB9715525D0 (en) Pulse oximetre
GR3036918T3 (en) Dowel
PL334701A1 (en) Novel method
EP0872847A4 (en) STORAGE
GB9713111D0 (en) Dowel
PL340541A1 (en) Pyridipyrrole derivative
GB9420010D0 (en) Nucleic acids
ZA98576B (en) Gemcitabine derivatives
PL340805A1 (en) Dophetilyde polymorphs
GB2315046B (en) Writing aid
GB9408064D0 (en) Nucleic acids
AU1680299A (en) Memory addressing
PL108336U1 (en) Atlas
GB9709615D0 (en) Associate memories
GB9725462D0 (en) Novel method
GB9720976D0 (en) Shared memory control method
PL322698A1 (en) Novel compound - furane derivative
GB9711925D0 (en) Data addressing scheme
GB9717890D0 (en) Easy write
GB9720995D0 (en) Nucleic acids
GB9724122D0 (en) Writing aid