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
torque
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
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd 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

Landscapes

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

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

Similar Documents

Publication Publication Date Title
JPS52110003A (en) Recording and reproducing apparatus
JPS5690455A (en) Magnetic tape device
JPS5525879A (en) Tape driver
JPS5264958A (en) Tape position detecting system
JPS5338381A (en) Tape speed detecting mechanism
JPS5694534A (en) Tape driving device
JPS52101010A (en) Magnetic recorder
JPS5242704A (en) Drive unit of in-cassette printer
JPS5223907A (en) Tape driving unit
JPS5514519A (en) Magnetic tape drive unit
JPS51113710A (en) Magnetic tape unit
JPS51117608A (en) Tape quantity detecting unit
JPS5680862A (en) Remaining time display system of cassette tape
JPS524806A (en) Tape recorder reel drive system
JPS55108946A (en) Magnetic tape system
JPS5350806A (en) Power transmission device of tape recorder
JPS5442123A (en) Display device of tape recorders
JPS57150177A (en) Display device for tape amount
JPS54137308A (en) Tape running device for magnetic recording and reproducing apparatus
JPS5326106A (en) Magnetic tape recorder
JPS51141604A (en) Apparatus for stopping the travelling magnetic tape
JPS52104206A (en) Reel drive motor control circuit in tape recorder
JPS5371812A (en) Capstan control system
JPS6425331A (en) Reel radius detecting circuit for magnetic tape device
JPS5469408A (en) Detecting method of tape winding radii