GB9226742D0 - Digital phase locked loop with self tuning - Google Patents

Digital phase locked loop with self tuning

Info

Publication number
GB9226742D0
GB9226742D0 GB929226742A GB9226742A GB9226742D0 GB 9226742 D0 GB9226742 D0 GB 9226742D0 GB 929226742 A GB929226742 A GB 929226742A GB 9226742 A GB9226742 A GB 9226742A GB 9226742 D0 GB9226742 D0 GB 9226742D0
Authority
GB
United Kingdom
Prior art keywords
locked loop
phase locked
digital phase
self tuning
tuning
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.)
Withdrawn
Application number
GB929226742A
Other versions
GB2273833A (en
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Priority to GB9226742A priority Critical patent/GB2273833A/en
Publication of GB9226742D0 publication Critical patent/GB9226742D0/en
Publication of GB2273833A publication Critical patent/GB2273833A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • 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
    • G11B21/106—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 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
    • G11B5/54—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 into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G11B5/553—Details
    • G11B5/5534—Initialisation, calibration, e.g. cylinder "set-up"
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
GB9226742A 1992-12-22 1992-12-22 Digital phase locked loop with self tuning Withdrawn GB2273833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9226742A GB2273833A (en) 1992-12-22 1992-12-22 Digital phase locked loop with self tuning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9226742A GB2273833A (en) 1992-12-22 1992-12-22 Digital phase locked loop with self tuning

Publications (2)

Publication Number Publication Date
GB9226742D0 true GB9226742D0 (en) 1993-02-17
GB2273833A GB2273833A (en) 1994-06-29

Family

ID=10727048

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9226742A Withdrawn GB2273833A (en) 1992-12-22 1992-12-22 Digital phase locked loop with self tuning

Country Status (1)

Country Link
GB (1) GB2273833A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363009B (en) * 2000-05-31 2004-05-05 Mitel Corp Reduced jitter phase lock loop using a technique multi-stage digital delay line

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124047A (en) * 1982-07-10 1984-02-08 Plessey Co Plc Frequency synthesiser
JPH0529932A (en) * 1991-07-24 1993-02-05 Matsushita Electric Ind Co Ltd Clock changeover circuit

Also Published As

Publication number Publication date
GB2273833A (en) 1994-06-29

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)