ES541943A0 - Un metodo de descodificar informacion de posicionamiento de cabezas de transductores - Google Patents

Un metodo de descodificar informacion de posicionamiento de cabezas de transductores

Info

Publication number
ES541943A0
ES541943A0 ES541943A ES541943A ES541943A0 ES 541943 A0 ES541943 A0 ES 541943A0 ES 541943 A ES541943 A ES 541943A ES 541943 A ES541943 A ES 541943A ES 541943 A0 ES541943 A0 ES 541943A0
Authority
ES
Spain
Prior art keywords
signals
positioning information
head
bursts
digital
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
ES541943A
Other languages
English (en)
Other versions
ES8609789A1 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Irwin Magnetic Systems Inc
Original Assignee
Irwin Magnetic Systems Inc
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 Irwin Magnetic Systems Inc filed Critical Irwin Magnetic Systems Inc
Publication of ES8609789A1 publication Critical patent/ES8609789A1/es
Publication of ES541943A0 publication Critical patent/ES541943A0/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G11B20/02—Analogue recording or reproducing
    • G11B20/08—Pulse-modulation recording or reproducing
    • 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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/08—Track changing or selecting during transducing operation
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • 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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/09—Digital recording
    • 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
    • G11B5/596—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 disks
    • G11B5/59688—Servo signal format patterns or signal processing thereof, e.g. dual, tri, quad, burst signal patterns
    • 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
    • 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
    • G11B2220/95—Serpentine format, wherein a single track or group of tracks traverses the tape plural times from one end to the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Control Of Position Or Direction (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Numerical Control (AREA)
ES541943A 1984-04-05 1985-04-03 Un metodo de descodificar informacion de posicionamiento de cabezas de transductores Expired ES8609789A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/597,012 US4646175A (en) 1984-04-05 1984-04-05 Method and apparatus for positioning transducers by digital conversion of analog-type signals

Publications (2)

Publication Number Publication Date
ES8609789A1 ES8609789A1 (es) 1986-09-01
ES541943A0 true ES541943A0 (es) 1986-09-01

Family

ID=24389689

Family Applications (1)

Application Number Title Priority Date Filing Date
ES541943A Expired ES8609789A1 (es) 1984-04-05 1985-04-03 Un metodo de descodificar informacion de posicionamiento de cabezas de transductores

Country Status (11)

Country Link
US (1) US4646175A (es)
EP (2) EP0159841B1 (es)
JP (1) JPH06105540B2 (es)
KR (1) KR910003019B1 (es)
AT (1) ATE117824T1 (es)
AU (1) AU579617B2 (es)
BR (1) BR8501572A (es)
CA (1) CA1232065A (es)
DE (1) DE3587982T2 (es)
ES (1) ES8609789A1 (es)
IE (1) IE850709L (es)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4766508A (en) * 1986-10-02 1988-08-23 Eastman Kodak Company Burst integral detecting embedded servo disk tracking system
US4816941A (en) * 1987-09-16 1989-03-28 International Business Machines Corporation Disk file digital servo control system with optimized sampling rate
JPH0636255B2 (ja) * 1988-10-27 1994-05-11 日本ビクター株式会社 磁気再生装置
US5136439A (en) * 1989-09-29 1992-08-04 Seagate Technology, Inc. Sectored servo position demodulator system
US5268802A (en) * 1991-05-28 1993-12-07 Iomega Corporation Reading non-standard tapes on tape drives
JPH05120616A (ja) * 1991-10-25 1993-05-18 Teac Corp デイスク装置
MX9303225A (es) * 1992-06-12 1994-05-31 Minnesota Mining & Mfg Aparato para grabar y leer datos sobre una cinta magnetica, en la forma de una secuencia de pistas arqueadas.
US5327305A (en) * 1992-08-14 1994-07-05 Conner Peripherals, Inc. Tape format detection system
US5566034A (en) * 1994-06-03 1996-10-15 Quantum Corporation Off-track detection with charge redistribution A/D circuits
US5949597A (en) * 1996-04-24 1999-09-07 Tandberg Data Storage A/S Method and apparatus for data pulse qualification wherein the amplitude of a preceding pulse of opposite polarity is tracked
US6018429A (en) * 1997-02-21 2000-01-25 Storage Technology Corporation Tape servo pattern with embedded servo track number identification
US5973869A (en) * 1997-02-21 1999-10-26 Storage Technology Corporation Servo frame edge detection for tape servo pattern with synchronization field
US5898533A (en) * 1997-02-21 1999-04-27 Storage Technology Corporation Tape servo pattern with embedded servo track number identification
US5926339A (en) * 1997-02-21 1999-07-20 Storage Technology Corporation Method for servo track identification
US6023385A (en) * 1997-02-21 2000-02-08 Storage Technology Corporation Tape servo pattern with enhanced synchronization properties
US5920439A (en) * 1997-02-21 1999-07-06 Storage Technology Corporation Method for determining longitudinal position on a magnetic tape having an embedded position count field
US5963400A (en) * 1997-02-21 1999-10-05 Storage Technology Corporation Thin film tape head including split top pole
US6075666A (en) * 1997-02-21 2000-06-13 Storage Technology Corporation Tape servo pattern having an embedded position count field
US5946156A (en) * 1997-03-04 1999-08-31 Imation Corp. Tape servo system and methods, write/read heads, and servo track configurations regarding same
US6031698A (en) * 1997-06-10 2000-02-29 Iomega Corporation Multiple partition tape cartridge detection means
US6031682A (en) * 1997-07-14 2000-02-29 Iomega Corporation Track trimming and orthogonal recording for cartridge tape
JP2002510113A (ja) * 1998-03-30 2002-04-02 ストーリッジ テクノロジー コーポレーション サーボトラック識別方法
US6330123B1 (en) 1999-05-28 2001-12-11 Imation Corp. Head assembly having a single pass servo writer
US6426846B1 (en) 1999-08-03 2002-07-30 International Business Machines Corporation Decoding digitally sampled servo tracks
US6937412B1 (en) * 2002-07-26 2005-08-30 Storage Technology Corporation Method and apparatus for creating a format identification block on a magnetic tape
JP5315399B2 (ja) * 2011-11-14 2013-10-16 日立マクセル株式会社 磁気テープ

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3720927A (en) * 1971-01-25 1973-03-13 Redactron Corp Speed insensitive reading and writing apparatus for digital information
US4032915A (en) * 1975-07-23 1977-06-28 Standard Oil Company (Indiana) Speed-tolerant digital decoding system
US4048660A (en) * 1975-12-23 1977-09-13 International Business Machines Corporation Record track following and seeking
US4052741A (en) * 1975-12-23 1977-10-04 International Business Machines Corporation Track seeking and following
US4157577A (en) * 1977-11-14 1979-06-05 International Business Machines Corporation Rotatable storage apparatus with digitally responsive circuitry for track selection
US4164763A (en) * 1977-11-23 1979-08-14 Carrier Corporation Time sequenced multiplexing method of recording and translating data
JPH0666108B2 (ja) * 1979-09-04 1994-08-24 ミネソタ マイニング アンド マニュファクチュアリング コンパニ− ディジタルカートリッジ及びフォーマット記録方法
US4297737A (en) * 1979-12-26 1981-10-27 International Business Machines Corporation Sector servo with sync marks
US4396959A (en) * 1980-09-24 1983-08-02 Quantum Corporation Data transducer position control system for rotating disk data storage equipment
US4472750A (en) * 1981-07-02 1984-09-18 Irwin Magnetic Systems, Inc. Data record with pre-recorded transducer positioning signals, and system for utilizing same
US4462053A (en) * 1981-07-02 1984-07-24 Irwin International, Inc. Method for controlling a disc head
US4454549A (en) * 1982-06-28 1984-06-12 International Business Machines Corporation Slant track sector servo
AT375486B (de) * 1982-12-07 1984-08-10 Philips Nv System zum aufzeichnen und/oder auswerten von zwei markiersignalen
US4586094A (en) * 1984-03-13 1986-04-29 Irwin Magnetic Systems, Inc. Method and apparatus for pre-recording tracking information on magnetic media

Also Published As

Publication number Publication date
US4646175A (en) 1987-02-24
ES8609789A1 (es) 1986-09-01
EP0159841A3 (en) 1988-06-22
EP0490876A3 (es) 1995-03-29
EP0159841A2 (en) 1985-10-30
EP0159841B1 (en) 1995-01-25
KR850007513A (ko) 1985-12-04
ATE117824T1 (de) 1995-02-15
JPS60229279A (ja) 1985-11-14
BR8501572A (pt) 1985-12-03
IE850709L (en) 1985-10-05
EP0490876A2 (en) 1992-06-17
DE3587982T2 (de) 1995-09-07
AU579617B2 (en) 1988-12-01
KR910003019B1 (ko) 1991-05-15
CA1232065A (en) 1988-01-26
JPH06105540B2 (ja) 1994-12-21
DE3587982D1 (de) 1995-03-09
AU4016285A (en) 1985-10-10

Similar Documents

Publication Publication Date Title
ES541943A0 (es) Un metodo de descodificar informacion de posicionamiento de cabezas de transductores
AU579171B2 (en) Method and apparatus for recording a digital signal
ATE55026T1 (de) Verfahren und geraet zur aufzeichnung digitaler informationssignale.
ATE62367T1 (de) Verfahren und vorrichtung zur aufzeichnung und/oder wiedergabe eines bildsignals und eines zugehoerigen tonsignals auf einen aufzeichnungstraeger und aufzeichungstraeger, gewonnen mittels dieses verfahrens.
BR8500630A (pt) Estrutura de cabecote de leitura-gravacao vertical de trilha geminada e metodo de polarizacao de vetores acoplados
DE3575224D1 (de) Verfahren und vorrichtung zur aufzeichnung und wiedergabe eines digitalen signals mit einem festen kopf.
EP0194641A3 (en) Tracking servo system for disc memory
MY105796A (en) Longitudinal magnetic-tape recording system, magnetic-tape apparatus for use in the system, and magnetic head for use in the magnetic-tape apparatus
JPS644976A (en) Data recorder
DE69026315D1 (de) Verwendung eines magnetischen Aufzeichnungsträgers für die Aufzeichnung eines Video-signals
DE3574642D1 (de) Verfahren und vorrichtung zur aufnahme und/oder wiedergabe von signalen auf/von einem bandfoermigen aufzeinungstraeger.
ATE56339T1 (de) Videobandaufzeichnungsgeraete.
EP0479491A3 (en) Reproducing apparatus for modifying signals read back from recorded data to avoid signal errors
ES486965A1 (es) Un aparato para establecer la posicion de cabezas para leer o inscribir informacion
EP0368511A3 (en) Synchronization of record media transports
CA2045963A1 (en) Method and apparatus for detecting recorded signals on a magnetic recording medium
US4956727A (en) Disc memory servo indexing system
DE3886972D1 (de) Gerät und Verfahren zur Aufzeichnung und Wiedergabe eines digitalen Signals.
EP0860825A3 (en) Information storage device having transducers operating in a pulse mode in synchronism with a clock
FR2453461B1 (fr) Tete de lecture de signaux enregistres sur des supports d'enregistrement tournants
GB2091475B (en) A device for the magnetic recording and playback of signals and magnetic transducing head therefor
GB1086225A (en) Improvements in or relating to magnetic recorder and reproduce systems
JPS5462810A (en) Recording-reproducing system
JPS5690454A (en) Tape-like recording medium and reproducing device
JPS6294487U (es)

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990301