JPS5677946A - Magnetic tape driving device - Google Patents

Magnetic tape driving device

Info

Publication number
JPS5677946A
JPS5677946A JP15385379A JP15385379A JPS5677946A JP S5677946 A JPS5677946 A JP S5677946A JP 15385379 A JP15385379 A JP 15385379A JP 15385379 A JP15385379 A JP 15385379A JP S5677946 A JPS5677946 A JP S5677946A
Authority
JP
Japan
Prior art keywords
tape
circuit
slack
pulse
turned
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.)
Pending
Application number
JP15385379A
Other languages
Japanese (ja)
Inventor
Yuji Sagara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15385379A priority Critical patent/JPS5677946A/en
Publication of JPS5677946A publication Critical patent/JPS5677946A/en
Pending legal-status Critical Current

Links

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

PURPOSE: To always keep a proper tape position with increase and decrease of the degree of tape slack, by detecting the slack of the tape and controlling the mobile reel toward the rotating direction via a control means.
CONSTITUTION: The detection signal sent from the tape slack detecting part 40 is shaped through the Schmitt trigger circuit 41 to be turned into the control signals of the gate circuits 42, 43. In the case of a large degree of tape slack, the pulse supplied from the pulse generating circuit 44 is supplied to the pulse driving circuit 47 through the gate circuit 42 to turn the pulse motor 49 in the direction to reduce the slack of the tape. When a proper slack of the tape is secured, the slack signal is turned off. Thus the output of the circuit 42 is also turned off to stop the rotation of the motor. Then the retrigger one-shot circuit 46 starts its operation, and the counter 45 starts after a fixed time to divide the pulse sent from the circuit 44 to then supply it to the gate circuit 43. The output of the circuit 43 turns gradually the pulse motor 49 through the driving circuit 48 in the direction to increase the tape slack. As a result, the tape can always be held in the optimum position.
COPYRIGHT: (C)1981,JPO&Japio
JP15385379A 1979-11-28 1979-11-28 Magnetic tape driving device Pending JPS5677946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15385379A JPS5677946A (en) 1979-11-28 1979-11-28 Magnetic tape driving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15385379A JPS5677946A (en) 1979-11-28 1979-11-28 Magnetic tape driving device

Publications (1)

Publication Number Publication Date
JPS5677946A true JPS5677946A (en) 1981-06-26

Family

ID=15571526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15385379A Pending JPS5677946A (en) 1979-11-28 1979-11-28 Magnetic tape driving device

Country Status (1)

Country Link
JP (1) JPS5677946A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178202A (en) * 1974-12-28 1976-07-07 Tokyo Shibaura Electric Co ENDORESUTEE PUKUDOSOCHI
JPS5481808A (en) * 1977-12-13 1979-06-29 Toshiba Corp Endless tape running device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178202A (en) * 1974-12-28 1976-07-07 Tokyo Shibaura Electric Co ENDORESUTEE PUKUDOSOCHI
JPS5481808A (en) * 1977-12-13 1979-06-29 Toshiba Corp Endless tape running device

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