CA2235104C - Systeme de servocommande numerique pour lecteurs de disques - Google Patents

Systeme de servocommande numerique pour lecteurs de disques Download PDF

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Publication number
CA2235104C
CA2235104C CA002235104A CA2235104A CA2235104C CA 2235104 C CA2235104 C CA 2235104C CA 002235104 A CA002235104 A CA 002235104A CA 2235104 A CA2235104 A CA 2235104A CA 2235104 C CA2235104 C CA 2235104C
Authority
CA
Canada
Prior art keywords
track
parameters
block
values
arrangement
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
CA002235104A
Other languages
English (en)
Other versions
CA2235104A1 (fr
Inventor
Philip Saxton Weilbacher
Paul Henry Kelley
Thomas James Frederick
Ronald James Kadlec
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.)
Sportech PLC
Original Assignee
Rodime PLC
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 Rodime PLC filed Critical Rodime PLC
Priority to CA002312044A priority Critical patent/CA2312044C/fr
Priority claimed from CA002068329A external-priority patent/CA2068329C/fr
Publication of CA2235104A1 publication Critical patent/CA2235104A1/fr
Application granted granted Critical
Publication of CA2235104C publication Critical patent/CA2235104C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)
  • Control Of Position Or Direction (AREA)
CA002235104A 1990-09-18 1991-09-17 Systeme de servocommande numerique pour lecteurs de disques Expired - Fee Related CA2235104C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002312044A CA2312044C (fr) 1990-09-18 1991-09-17 Systeme de servocommande numerique pour lecteurs de disques

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US58397290A 1990-09-18 1990-09-18
US583,972 1990-09-18
CA002068329A CA2068329C (fr) 1990-09-18 1991-09-17 Systeme de commande numerique de servomecanisme de lecteur de disque

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002068329A Division CA2068329C (fr) 1990-09-18 1991-09-17 Systeme de commande numerique de servomecanisme de lecteur de disque

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002312044A Division CA2312044C (fr) 1990-09-18 1991-09-17 Systeme de servocommande numerique pour lecteurs de disques

Publications (2)

Publication Number Publication Date
CA2235104A1 CA2235104A1 (fr) 1992-03-19
CA2235104C true CA2235104C (fr) 2000-11-14

Family

ID=25675128

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002235104A Expired - Fee Related CA2235104C (fr) 1990-09-18 1991-09-17 Systeme de servocommande numerique pour lecteurs de disques

Country Status (1)

Country Link
CA (1) CA2235104C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11454938B2 (en) 2017-05-22 2022-09-27 Asml Netherlands B.V. Control system, method to increase a bandwidth of a control system, and lithographic apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11454938B2 (en) 2017-05-22 2022-09-27 Asml Netherlands B.V. Control system, method to increase a bandwidth of a control system, and lithographic apparatus

Also Published As

Publication number Publication date
CA2235104A1 (fr) 1992-03-19

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