JPS5690455A - Magnetic tape device - Google Patents

Magnetic tape device

Info

Publication number
JPS5690455A
JPS5690455A JP16663079A JP16663079A JPS5690455A JP S5690455 A JPS5690455 A JP S5690455A JP 16663079 A JP16663079 A JP 16663079A JP 16663079 A JP16663079 A JP 16663079A JP S5690455 A JPS5690455 A JP S5690455A
Authority
JP
Japan
Prior art keywords
tape
capstan
reel
buffer
running
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
JP16663079A
Other languages
Japanese (ja)
Inventor
Jiro Nagaoka
Original Assignee
Nec 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 Nec Corp filed Critical Nec Corp
Priority to JP16663079A priority Critical patent/JPS5690455A/en
Publication of JPS5690455A publication Critical patent/JPS5690455A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To control the torque of a reel motor, by detecting running direction and running quantity of a tape by rotation of capstan and by subjecting them to addition and subtraction.
CONSTITUTION: A tape is linked with capstan 1 without slip. Reel 2 is used for roll- up, and reel 3 is used for supply, and they are driven through buffer 4 or 5 by capstan 1. Tape quantity sensor 6 or 7 is arranged in buffer 4 or 5, and reel motors 8 and 9 of reels 2 and 3 are so driven that a proper tape quantity is always stored in buffer 4 or 5. Rotation of capstan 1 is detected optically and is given to integrating counter 11 for the tape running quantity. Then, torque control circuit 12 is operated according to contents of integrating counter 11 to control the torque constant of reel motors 8 and 9.
COPYRIGHT: (C)1981,JPO&Japio
JP16663079A 1979-12-20 1979-12-20 Magnetic tape device Pending JPS5690455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16663079A JPS5690455A (en) 1979-12-20 1979-12-20 Magnetic tape device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16663079A JPS5690455A (en) 1979-12-20 1979-12-20 Magnetic tape device

Publications (1)

Publication Number Publication Date
JPS5690455A true JPS5690455A (en) 1981-07-22

Family

ID=15834841

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16663079A Pending JPS5690455A (en) 1979-12-20 1979-12-20 Magnetic tape device

Country Status (1)

Country Link
JP (1) JPS5690455A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63235245A (en) * 1987-03-25 1988-09-30 Toray Ind Inc Device for winding film
JPH0359954U (en) * 1989-10-17 1991-06-12

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63235245A (en) * 1987-03-25 1988-09-30 Toray Ind Inc Device for winding film
JPH0359954U (en) * 1989-10-17 1991-06-12

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