JPS5668951A - Magnetic tape driving device - Google Patents

Magnetic tape driving device

Info

Publication number
JPS5668951A
JPS5668951A JP14463379A JP14463379A JPS5668951A JP S5668951 A JPS5668951 A JP S5668951A JP 14463379 A JP14463379 A JP 14463379A JP 14463379 A JP14463379 A JP 14463379A JP S5668951 A JPS5668951 A JP S5668951A
Authority
JP
Japan
Prior art keywords
tape
driving
reverse
time
back tension
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
JP14463379A
Other languages
Japanese (ja)
Other versions
JPH0213380B2 (en
Inventor
Toyofumi Tani
Sadanobu Kawabe
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14463379A priority Critical patent/JPS5668951A/en
Publication of JPS5668951A publication Critical patent/JPS5668951A/en
Publication of JPH0213380B2 publication Critical patent/JPH0213380B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To reduce the reversing time in case the driving is given by the motor connected directly to the two reels, by reducing sufficiently the driving current of the relay driving motor for tape roll-out during the reverse.
CONSTITUTION: When the terminal signal (e) is inputted at the time t1, the reverse of tape driving is started to turn iL and iR to zero and ID each. The level of the ID is controlled by the control driving device 8 according to the tape roll-up degree. Since the torque corresponding to IB applied to the motor 3 is reduced, the travelling speed of the tape increases quickly. The device 8 receives the switch command from the back tension switch device 9 at the time point t2 when the tape speed approximates to the prescribed level, thus increasing the iL from zero to IB with an addition of the back tension. No large back tension is applied during the time t1W t2, and thus the rise of the tape speed increases during the reverse.
COPYRIGHT: (C)1981,JPO&Japio
JP14463379A 1979-11-07 1979-11-07 Magnetic tape driving device Granted JPS5668951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14463379A JPS5668951A (en) 1979-11-07 1979-11-07 Magnetic tape driving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14463379A JPS5668951A (en) 1979-11-07 1979-11-07 Magnetic tape driving device

Publications (2)

Publication Number Publication Date
JPS5668951A true JPS5668951A (en) 1981-06-09
JPH0213380B2 JPH0213380B2 (en) 1990-04-04

Family

ID=15366581

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14463379A Granted JPS5668951A (en) 1979-11-07 1979-11-07 Magnetic tape driving device

Country Status (1)

Country Link
JP (1) JPS5668951A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0477081A (en) * 1990-07-16 1992-03-11 Matsushita Electric Ind Co Ltd Video adjustment circuit for television receiver

Also Published As

Publication number Publication date
JPH0213380B2 (en) 1990-04-04

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