JPS5535719A - Drive system for tape take-up mechanism - Google Patents

Drive system for tape take-up mechanism

Info

Publication number
JPS5535719A
JPS5535719A JP10663978A JP10663978A JPS5535719A JP S5535719 A JPS5535719 A JP S5535719A JP 10663978 A JP10663978 A JP 10663978A JP 10663978 A JP10663978 A JP 10663978A JP S5535719 A JPS5535719 A JP S5535719A
Authority
JP
Japan
Prior art keywords
tape
terminal
reel
counting
take
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.)
Granted
Application number
JP10663978A
Other languages
Japanese (ja)
Other versions
JPS6132918B2 (en
Inventor
Akira Kanamori
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP10663978A priority Critical patent/JPS5535719A/en
Publication of JPS5535719A publication Critical patent/JPS5535719A/en
Publication of JPS6132918B2 publication Critical patent/JPS6132918B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Winding Of Webs (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:To enable assured step drive of a predetermined length of a magnetic tape or the like in a short time by so changing the output of a take-up reel step drive source as to ensure that the time required for advancing the tape by a certain distance may be constant. CONSTITUTION:The position of a tape 1, which is let off from a reel 3 and wound up around a step-driven take-up reel (capstan) 2, at time t1 is measured by counting the pulses from a tachometer; the excessive and deficient portions + or -DELTAx1 relative to the ideal value are fed to the terminal of an up-down counter UDC; and an enable terminal is fed with a signal when the absolute value of DELTAx1 has exceded an allowable value DELTAx0, to start counting. When the cases where the allowable value DELTAx0 is surpassed have successively accurred more than predetermined times, the output of a decoder DEC appears at a gain increase terminal or a gain decrease terminal, to change the gain of a motor amplifier 5 by one step, resetting the counter UDC. The measurement of the position x1 is conducted by the next step drive, and the normal take-up of the tape 1 is continued while the counter UDC is conducting the predetermained counting.
JP10663978A 1978-08-31 1978-08-31 Drive system for tape take-up mechanism Granted JPS5535719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10663978A JPS5535719A (en) 1978-08-31 1978-08-31 Drive system for tape take-up mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10663978A JPS5535719A (en) 1978-08-31 1978-08-31 Drive system for tape take-up mechanism

Publications (2)

Publication Number Publication Date
JPS5535719A true JPS5535719A (en) 1980-03-12
JPS6132918B2 JPS6132918B2 (en) 1986-07-30

Family

ID=14438678

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10663978A Granted JPS5535719A (en) 1978-08-31 1978-08-31 Drive system for tape take-up mechanism

Country Status (1)

Country Link
JP (1) JPS5535719A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6018842A (en) * 1984-06-12 1985-01-30 Matsushita Electric Ind Co Ltd tape drive device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6433014U (en) * 1987-08-21 1989-03-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6018842A (en) * 1984-06-12 1985-01-30 Matsushita Electric Ind Co Ltd tape drive device

Also Published As

Publication number Publication date
JPS6132918B2 (en) 1986-07-30

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