HK1027204A1 - Servo system and method with multipe phase clock. - Google Patents

Servo system and method with multipe phase clock.

Info

Publication number
HK1027204A1
HK1027204A1 HK00106319A HK00106319A HK1027204A1 HK 1027204 A1 HK1027204 A1 HK 1027204A1 HK 00106319 A HK00106319 A HK 00106319A HK 00106319 A HK00106319 A HK 00106319A HK 1027204 A1 HK1027204 A1 HK 1027204A1
Authority
HK
Hong Kong
Prior art keywords
multipe
servo system
phase clock
clock
phase
Prior art date
Application number
HK00106319A
Other languages
English (en)
Inventor
Donald J Fasen
Charles E Hessing
Benjamin A Willcocks
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of HK1027204A1 publication Critical patent/HK1027204A1/xx

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
    • G11B5/48—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
    • 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
    • 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
HK00106319A 1998-10-20 2000-10-05 Servo system and method with multipe phase clock. HK1027204A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/175,908 US6124996A (en) 1998-10-20 1998-10-20 Servo system and method with multiple phase clock

Publications (1)

Publication Number Publication Date
HK1027204A1 true HK1027204A1 (en) 2001-01-05

Family

ID=22642167

Family Applications (1)

Application Number Title Priority Date Filing Date
HK00106319A HK1027204A1 (en) 1998-10-20 2000-10-05 Servo system and method with multipe phase clock.

Country Status (5)

Country Link
US (1) US6124996A (xx)
EP (1) EP0996114B1 (xx)
JP (1) JP2000123335A (xx)
DE (1) DE69918770T2 (xx)
HK (1) HK1027204A1 (xx)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002054648A2 (en) * 2000-12-30 2002-07-11 Vitesse Semiconductor Corporation Data de-skew method and system
US20020093986A1 (en) * 2000-12-30 2002-07-18 Norm Hendrickson Forward data de-skew method and system
US20020090045A1 (en) * 2001-01-10 2002-07-11 Norm Hendrickson Digital clock recovery system
WO2002062004A1 (en) 2001-02-01 2002-08-08 Vitesse Semiconductor Corporation Rz recovery
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
US6924960B1 (en) * 2003-07-31 2005-08-02 Western Digital Technologies, Inc. Timing compensation in a self-servowriting system
US7038872B2 (en) * 2003-11-10 2006-05-02 Imation Corp. Servo patterns with inherent track ID
US7038871B2 (en) * 2003-11-10 2006-05-02 Imation Corp. Multi-band servo patterns with inherent track ID
US7142381B2 (en) * 2003-11-10 2006-11-28 Imation Corp. Servo writing devices for creating servo patterns with inherent track ID
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
US7333291B1 (en) 2006-09-28 2008-02-19 Hewlett-Packard Development Company, L.P. System and method for reducing tracking noise in a tape drive

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5433983A (en) * 1977-08-22 1979-03-13 Toshiba Corp Digital servo device
JPS54102474A (en) * 1978-01-27 1979-08-11 Sony Corp Digital servo circuit
EP0177936B1 (en) * 1984-10-12 1990-08-16 Sanyo Electric Co., Ltd. Digital servo apparatus
US5065081A (en) * 1987-12-10 1991-11-12 Shah Emanuel E Zero error digital servo system
US5172353A (en) * 1989-03-02 1992-12-15 Olympus Optical Co., Ltd. Track seeking control apparatus for use in data recording/reproduction systems having data tracks thereon
US5077529A (en) * 1989-07-19 1991-12-31 Level One Communications, Inc. Wide bandwidth digital phase locked loop with reduced low frequency intrinsic jitter
JP3313175B2 (ja) * 1993-02-19 2002-08-12 富士通株式会社 ディスク装置のサーボ位置検出装置及びその方法
JP3355690B2 (ja) * 1993-03-31 2002-12-09 ソニー株式会社 クロック再生装置
US5689384A (en) * 1994-06-30 1997-11-18 International Business Machines Corporation Timing based servo system for magnetic tape systems

Also Published As

Publication number Publication date
DE69918770D1 (de) 2004-08-26
EP0996114A2 (en) 2000-04-26
US6124996A (en) 2000-09-26
EP0996114A3 (en) 2000-05-31
DE69918770T2 (de) 2005-08-11
JP2000123335A (ja) 2000-04-28
EP0996114B1 (en) 2004-07-21

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20100930