DE69431524D1 - Laufwerk mit bogenförmiger bandabtastung - Google Patents

Laufwerk mit bogenförmiger bandabtastung

Info

Publication number
DE69431524D1
DE69431524D1 DE69431524T DE69431524T DE69431524D1 DE 69431524 D1 DE69431524 D1 DE 69431524D1 DE 69431524 T DE69431524 T DE 69431524T DE 69431524 T DE69431524 T DE 69431524T DE 69431524 D1 DE69431524 D1 DE 69431524D1
Authority
DE
Germany
Prior art keywords
carrier assembly
head carrier
data
tape
data tape
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.)
Expired - Fee Related
Application number
DE69431524T
Other languages
English (en)
Other versions
DE69431524T2 (de
Inventor
M Rottenburg
Joseph Lin
H Pierce
Richard Milo
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.)
Certance LLC
Original Assignee
Seagate Removable Storage Solutions LLC
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 Seagate Removable Storage Solutions LLC filed Critical Seagate Removable Storage Solutions LLC
Publication of DE69431524D1 publication Critical patent/DE69431524D1/de
Application granted granted Critical
Publication of DE69431524T2 publication Critical patent/DE69431524T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/23—Gap features
    • G11B5/232—Manufacture of gap
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
    • G11B15/4671—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling simultaneously the speed of the tape and the speed of the rotating head
    • G11B15/4672—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling simultaneously the speed of the tape and the speed of the rotating head with provision for information tracking
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60—Guiding record carrier
    • G11B15/61—Guiding record carrier on drum, e.g. drum containing rotating heads
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60—Guiding record carrier
    • G11B15/61—Guiding record carrier on drum, e.g. drum containing rotating heads
    • G11B15/615—Guiding record carrier on drum, e.g. drum containing rotating heads inside container
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60—Guiding record carrier
    • G11B15/62—Maintaining desired spacing between record carrier and head
    • G11B15/64—Maintaining desired spacing between record carrier and head by fluid-dynamic spacing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/675—Guiding containers, e.g. loading, ejecting cassettes
    • G11B15/6751—Guiding containers, e.g. loading, ejecting cassettes with movement of the cassette parallel to its main side, i.e. front loading
    • G11B15/67521—Guiding containers, e.g. loading, ejecting cassettes with movement of the cassette parallel to its main side, i.e. front loading of cassette with internal belt drive
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/06—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using web-form record carriers, e.g. tape
    • G11B25/063—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using web-form record carriers, e.g. tape using tape inside container
    • 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
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00813—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes
    • G11B5/00847—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes on transverse tracks
    • G11B5/0086—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes on transverse tracks using cyclically driven heads providing segmented tracks
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/1871—Shaping or contouring of the transducing or guiding surface
    • 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
    • G11B5/52—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 simultaneous movement of head and record carrier, e.g. rotation of head
    • G11B5/53—Disposition or mounting of heads on rotating support
    • 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
    • G11B5/52—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 simultaneous movement of head and record carrier, e.g. rotation of head
    • G11B5/53—Disposition or mounting of heads on rotating support
    • G11B5/531—Disposition of more than one recording or reproducing head on support rotating cyclically around an axis
    • G11B5/535—Disposition of more than one recording or reproducing head on support rotating cyclically around an axis perpendicular to the direction of movement of the tape, e.g. for longitudinal scanning
    • G11B5/537—Disposition of more than one recording or reproducing head on support rotating cyclically around an axis perpendicular to the direction of movement of the tape, e.g. for longitudinal scanning with all the heads disposed in a plane substantially parallel to the plane of the tape, e.g. for circular scanning
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
    • G11B15/473—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the heads
    • G11B15/4731—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the heads control of headwheel rotation
    • G11B15/4733—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the heads control of headwheel rotation with provision for information tracking, e.g. for time base correction
    • G11B15/4735—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the heads control of headwheel rotation with provision for information tracking, e.g. for time base correction using signals recorded in tracks disposed parallel with the scanning direction
    • G11B15/4736—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the heads control of headwheel rotation with provision for information tracking, e.g. for time base correction using signals recorded in tracks disposed parallel with the scanning direction using auxiliary signals, i.e. pilot signals
    • G11B15/4738—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the heads control of headwheel rotation with provision for information tracking, e.g. for time base correction using signals recorded in tracks disposed parallel with the scanning direction using auxiliary signals, i.e. pilot signals superimposed on the main signal track
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49027—Mounting preformed head/core onto other structure
    • Y10T29/4903—Mounting preformed head/core onto other structure with bonding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
    • Y10T29/49052—Machining magnetic material [e.g., grinding, etching, polishing] by etching

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Surgical Instruments (AREA)
  • Rehabilitation Tools (AREA)
DE69431524T 1993-08-30 1994-08-25 Laufwerk mit bogenförmiger bandabtastung Expired - Fee Related DE69431524T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/113,996 US5585978A (en) 1993-08-30 1993-08-30 Arcuate scan tape drive
PCT/US1994/009703 WO1995006940A1 (en) 1993-08-30 1994-08-25 Arcuate scan tape drive

Publications (2)

Publication Number Publication Date
DE69431524D1 true DE69431524D1 (de) 2002-11-14
DE69431524T2 DE69431524T2 (de) 2003-06-18

Family

ID=22352783

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69431524T Expired - Fee Related DE69431524T2 (de) 1993-08-30 1994-08-25 Laufwerk mit bogenförmiger bandabtastung

Country Status (7)

Country Link
US (2) US5585978A (de)
EP (1) EP0716769B1 (de)
JP (1) JP3718524B2 (de)
AT (1) ATE225978T1 (de)
DE (1) DE69431524T2 (de)
HK (1) HK1012117A1 (de)
WO (1) WO1995006940A1 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5978166A (en) * 1993-08-02 1999-11-02 Teac Corporation Method of and apparatus for positioning a rotary magnetic head drum in an arcuate scan system
US6115218A (en) * 1993-08-30 2000-09-05 Seagate Technology, Inc. Tape support system for arcuate scan rotating head
US5689384A (en) * 1994-06-30 1997-11-18 International Business Machines Corporation Timing based servo system for magnetic tape systems
US6088183A (en) 1994-11-10 2000-07-11 Seagate Peripherals, Inc. Arcuate scan read/write assembly
US5815337A (en) * 1995-10-24 1998-09-29 Seagate Technology, Inc. Tape drive having an arcuate scanner and a method for calibrating the arcuate scanner
US5748396A (en) * 1995-11-13 1998-05-05 Seagate Technology, Inc. Arrangement and method for optimizing the recorded signal to noise ratio in contact recording systems
US5847892A (en) * 1995-11-13 1998-12-08 Seagate Technology, Inc. Servoing and formatting magnetic recording tape in an arcuate scanner system
US5796537A (en) * 1995-11-13 1998-08-18 Seagate Technology, Inc. Method and arrangement for servoing and formatting magnetic recording tape
US6130792A (en) * 1995-11-13 2000-10-10 Seagate Technology, Inc. Flat servo bursts for arcuate track scanner
US5675447A (en) * 1995-11-13 1997-10-07 Seagate Technology, Inc. Method and arrangement for initiating search for start of data in arcuately recorded data tracks
US6369982B2 (en) * 1998-09-08 2002-04-09 Quantum Corporation Floating tape head having side wings for longitudinal and azimuth play back with minimized tape wrap angle
JP3551099B2 (ja) * 1999-09-28 2004-08-04 日本電気株式会社 磁気テープ装置用薄膜磁気ヘッド
US6498699B1 (en) * 1999-12-02 2002-12-24 Storage Technology Corporation Tape transport using a carrier ribbon
TWI226614B (en) * 2003-09-29 2005-01-11 Aopen Inc Optical disc drive which can firmly fix its tray module within its housing
US7839598B2 (en) * 2008-02-08 2010-11-23 International Business Machines Corporation Balanced linkage actuation of tape head
CN101763511B (zh) * 2009-11-30 2013-03-27 深圳奥士达电子有限公司 可旋转扫描头
US8869179B2 (en) 2011-06-17 2014-10-21 Oracle International Corporation Rotary head data storage and retrieval system and method
US8225339B1 (en) 2011-06-17 2012-07-17 Oracle International Corporation Rotary head data storage and retrieval system and method
US9324347B2 (en) 2012-09-19 2016-04-26 Oracle International Corporation Apparatus and method for controlling tape movement in a rotary head data storage system and retrieval system
US8780682B2 (en) 2012-11-07 2014-07-15 Oracle International Corporation Rotary head data storage and retrieval system and method for data erasure
US8897113B2 (en) 2012-11-07 2014-11-25 Oracle International Corporation Rotary head data storage and retrieval system and method for data verification
US8793713B2 (en) 2012-11-07 2014-07-29 Oracle International Corporation Rotary head data storage and retrieval system and method with tape medium having transverse primary data tracks and longitudinal secondary data track
US8869180B2 (en) 2012-11-27 2014-10-21 Oracle America, Inc. Rotary head multi-layer data storage and retrieval system and method

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750449A (en) * 1951-11-07 1956-06-12 Soundscriber Corp Long playing magnetic tape recorder
US2772328A (en) * 1952-04-28 1956-11-27 Soundscriber Corp Automatic synchronization apparatus for long-time transverse magnetic sound recorder and reproducer
US2743319A (en) * 1952-12-24 1956-04-24 Soundscriber Corp Scanning mechanism for magnetic tape recorders
US2743318A (en) * 1953-04-13 1956-04-24 Forest Lee De Method and apparatus for recording and reproducing television pictures
US3079469A (en) * 1958-03-28 1963-02-26 Philips Corp Magnetic recording
US2973410A (en) * 1958-05-02 1961-02-28 Hoshino Yasushi Pressing plate of a magnetic sound record reading machine
US3317680A (en) * 1963-04-10 1967-05-02 Harold C Porter Device for repetitively scanning selected small increments of data
FR1384082A (fr) * 1963-11-21 1965-01-04 Bull Sa Machines Perfectionnements aux dispositifs d'enregistrement et de reproduction magnétiques
US4112472A (en) * 1977-02-28 1978-09-05 International Business Machines Corporation Longitudinal scan, cam shaped, turntable rotor for magnetic recording
DE3018037A1 (de) * 1980-05-10 1981-11-12 Dieter 7530 Pforzheim Rubi Video-aufzeichnungs- und wiedergabe-verfahren und -vorrichtung
JPS5835758A (ja) * 1981-08-25 1983-03-02 Fujitsu Ltd テ−プガイドポスト
US4636886A (en) * 1984-08-02 1987-01-13 Magnetic Peripherals Inc. Rotary head recording system
JPS61217957A (ja) * 1985-03-23 1986-09-27 Victor Co Of Japan Ltd 垂直磁気記録／再生装置
JPS6284402A (ja) * 1985-10-09 1987-04-17 Matsushita Electric Ind Co Ltd 磁気記録再生装置
KR930011690B1 (ko) * 1989-07-28 1993-12-18 가부시기가이샤 도시바 회전 헤드장치
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.
JPH06284402A (ja) * 1993-03-26 1994-10-07 Kodo Eizo Gijutsu Kenkyusho:Kk 高品位画像符号化方法

Also Published As

Publication number Publication date
US5585978A (en) 1996-12-17
JPH09502827A (ja) 1997-03-18
EP0716769B1 (de) 2002-10-09
DE69431524T2 (de) 2003-06-18
US5729890A (en) 1998-03-24
WO1995006940A1 (en) 1995-03-09
JP3718524B2 (ja) 2005-11-24
EP0716769A4 (de) 1996-09-25
ATE225978T1 (de) 2002-10-15
EP0716769A1 (de) 1996-06-19
HK1012117A1 (en) 1999-07-23

Similar Documents

Publication Publication Date Title
DE69431524D1 (de) Laufwerk mit bogenförmiger bandabtastung
RU94018217A (ru) Устройство записи и считывания информации, устройство преобразования информации (варианты), формат ленты, устройство электромагнитного запоминания информации, способ автоматического регулирования положения электромагнитного преобразователя (варианты), способ создания контакта между магнитной лентой и поворотным держателем преобразователя и способ записи информации
JP2000503447A (ja) ４チャネルアジマスおよび２チャネルノンアジマス・リードアフタライト長手磁気ヘッド
JP2003168203A (ja) ハイブリッド・サーボ位置決めシステム
EP1156485A3 (de) Vorrichtung und Verfahren zur Steuerung einer magnetischen Platteneinheit
GB1533322A (en) Data storage apparatus
EP0543605A2 (de) Schraubenabtastungsvorrichtungen zur Aufzeichnung/Wiedergabe von Datenspuren mit hoher Dichte
EP0327289A3 (de) Magnetisches Aufzeichnungs- und Wiedergabegerät
EP1030300A3 (de) Magnetisches Aufnahme- und Wiedergabe-Gerät
US4847718A (en) Cassette with erasing means
EP0341790A3 (de) Magnetbandwiedergabemethode und -gerät mit rotierendem Trommelkopf
MY117756A (en) Magnetic tape and a method for recording and reproducing a plurality of different information signals on and from the magnetic tape.
JPS6028043B2 (ja) 電子編集用磁気記録再生装置
MY104995A (en) Tape loading apparatus for cassette tape player
FR2323206A1 (fr) Dispositif de reglage de la tete d'enregistrement-lecture et de la tete d'effacement sur une plaque porte-tetes, dans un magnetophone a cassettes
EP0730270A3 (de) Magnetisches Aufzeichnungs-/Wiedergabegerät mit Positionierungsmechanismus für Bandführungstrommel
DE69618115D1 (de) Aufzeichnung und/oder Wiedergabe von Informationen
JPS5611A (en) Erasing head unit for tape recorder
KR900006960B1 (en) Apparatus for magnetic hard disk
JPS6331012A (ja) 磁気ヘツド
JP2574760B2 (ja) テ−プ装架機構
WO2000057406A3 (en) Tape head azimuth adjustment
CA2038073A1 (en) Tape transport with multi-gap read/write head for utilization with leader block tape cartridge
US6657814B2 (en) Transducing head for tape drive
JP3846009B2 (ja) ディジタルｖｔｒの磁気記録再生装置及び磁気記録再生方法

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee