JPS57117152A - Tape speed control system - Google Patents

Tape speed control system

Info

Publication number
JPS57117152A
JPS57117152A JP56001715A JP171581A JPS57117152A JP S57117152 A JPS57117152 A JP S57117152A JP 56001715 A JP56001715 A JP 56001715A JP 171581 A JP171581 A JP 171581A JP S57117152 A JPS57117152 A JP S57117152A
Authority
JP
Japan
Prior art keywords
tape
revolutions
value
reel
constant speed
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
JP56001715A
Other languages
Japanese (ja)
Other versions
JPH0213382B2 (en
Inventor
Naoto Noguchi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56001715A priority Critical patent/JPS57117152A/en
Publication of JPS57117152A publication Critical patent/JPS57117152A/en
Publication of JPH0213382B2 publication Critical patent/JPH0213382B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed

Landscapes

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

Abstract

PURPOSE:To feed tape stably at a constant speed, by measuring the number of revolutions of tape supply reed and takeup reel and takeup reel, and controlling a tape drive motor through taking the reference value of prescribed equation obtained by calculation. CONSTITUTION:A supply reel 1a and number of revolutions n0 of a tape 4 running at a constant speed, and number of revolutions n1 of a takeup reel 1b are measured to calculate 1/n0<2>+1/n1<2>. On the other hand, number of revolutions n0' of the supply reel la and that n1' of the takeup reel 1b are measured by taking the value of 1/n0<2>+1/n1 <2>as a reference to calculate the value of 1/n'0<2>+1/n'1<2>. This value is compared with the reference value 1/n0<2>+1/n1<2> to control a tape drive motor in response to the error, allowing to run the tape 4 at a constant speed.
JP56001715A 1981-01-08 1981-01-08 Tape speed control system Granted JPS57117152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56001715A JPS57117152A (en) 1981-01-08 1981-01-08 Tape speed control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56001715A JPS57117152A (en) 1981-01-08 1981-01-08 Tape speed control system

Publications (2)

Publication Number Publication Date
JPS57117152A true JPS57117152A (en) 1982-07-21
JPH0213382B2 JPH0213382B2 (en) 1990-04-04

Family

ID=11509250

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56001715A Granted JPS57117152A (en) 1981-01-08 1981-01-08 Tape speed control system

Country Status (1)

Country Link
JP (1) JPS57117152A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322119A2 (en) * 1987-11-30 1989-06-28 Matsushita Electric Industrial Co., Ltd. Information reproducing apparatus for recording tape

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4834510A (en) * 1971-09-04 1973-05-19
JPS5084204A (en) * 1973-11-24 1975-07-08

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4834510A (en) * 1971-09-04 1973-05-19
JPS5084204A (en) * 1973-11-24 1975-07-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322119A2 (en) * 1987-11-30 1989-06-28 Matsushita Electric Industrial Co., Ltd. Information reproducing apparatus for recording tape

Also Published As

Publication number Publication date
JPH0213382B2 (en) 1990-04-04

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