DE69631239D1 - Gebrauch eines Phasenregelkreises in einem eingebetteten Servodemodulator - Google Patents

Gebrauch eines Phasenregelkreises in einem eingebetteten Servodemodulator

Info

Publication number
DE69631239D1
DE69631239D1 DE69631239T DE69631239T DE69631239D1 DE 69631239 D1 DE69631239 D1 DE 69631239D1 DE 69631239 T DE69631239 T DE 69631239T DE 69631239 T DE69631239 T DE 69631239T DE 69631239 D1 DE69631239 D1 DE 69631239D1
Authority
DE
Germany
Prior art keywords
locked loop
phase locked
embedded servo
servo demodulator
demodulator
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
DE69631239T
Other languages
English (en)
Other versions
DE69631239T2 (de
Inventor
John Kopplin
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.)
Hewlett Packard Development Co LP
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 DE69631239D1 publication Critical patent/DE69631239D1/de
Application granted granted Critical
Publication of DE69631239T2 publication Critical patent/DE69631239T2/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
    • G11B5/48—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
    • G11B5/59605—Circuits
    • G11B5/59616—Synchronisation; Clocking
DE69631239T 1995-10-31 1996-10-15 Gebrauch eines Phasenregelkreises in einem eingebetteten Servodemodulator Expired - Fee Related DE69631239T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55109795A 1995-10-31 1995-10-31
US551097 1995-10-31

Publications (2)

Publication Number Publication Date
DE69631239D1 true DE69631239D1 (de) 2004-02-05
DE69631239T2 DE69631239T2 (de) 2004-12-02

Family

ID=24199842

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69631239T Expired - Fee Related DE69631239T2 (de) 1995-10-31 1996-10-15 Gebrauch eines Phasenregelkreises in einem eingebetteten Servodemodulator

Country Status (4)

Country Link
EP (1) EP0772187B1 (de)
JP (1) JP3804696B2 (de)
DE (1) DE69631239T2 (de)
MY (1) MY123738A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7080844B2 (ja) * 2019-03-19 2022-06-06 株式会社東芝 磁気ディスク装置、及びサーボ復調位置の復調方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414589A (en) * 1981-12-14 1983-11-08 Northern Telecom Inc. Embedded servo track following system and method for writing servo tracks
JP2744840B2 (ja) * 1990-08-20 1998-04-28 富士通株式会社 磁気ディスク装置の同期信号再生装置
US5089757A (en) * 1991-03-15 1992-02-18 Maxtor Corporation Synchronous digital detection of position error signal
US5146183A (en) * 1991-09-27 1992-09-08 Maxtor Corporation Phase lock loop for sector servo system

Also Published As

Publication number Publication date
MY123738A (en) 2006-06-30
JP3804696B2 (ja) 2006-08-02
DE69631239T2 (de) 2004-12-02
EP0772187B1 (de) 2004-01-02
EP0772187A3 (de) 1997-12-29
JPH09198814A (ja) 1997-07-31
EP0772187A2 (de) 1997-05-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE

8339 Ceased/non-payment of the annual fee