JPS5798152A - Controller for tape tension of tape run system in compact cassette - Google Patents

Controller for tape tension of tape run system in compact cassette

Info

Publication number
JPS5798152A
JPS5798152A JP55172498A JP17249880A JPS5798152A JP S5798152 A JPS5798152 A JP S5798152A JP 55172498 A JP55172498 A JP 55172498A JP 17249880 A JP17249880 A JP 17249880A JP S5798152 A JPS5798152 A JP S5798152A
Authority
JP
Japan
Prior art keywords
tape
tension
vibration
amplified
differentiating circuit
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
JP55172498A
Other languages
Japanese (ja)
Other versions
JPS6223383B2 (en
Inventor
Hirotoshi Ono
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.)
Victor Company of Japan Ltd
Nippon Victor KK
Original Assignee
Victor Company of Japan Ltd
Nippon Victor KK
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 Victor Company of Japan Ltd, Nippon Victor KK filed Critical Victor Company of Japan Ltd
Priority to JP55172498A priority Critical patent/JPS5798152A/en
Priority to GB8136647A priority patent/GB2089074B/en
Priority to US06/327,673 priority patent/US4429261A/en
Priority to DE3148359A priority patent/DE3148359C2/en
Publication of JPS5798152A publication Critical patent/JPS5798152A/en
Publication of JPS6223383B2 publication Critical patent/JPS6223383B2/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
    • G11B15/43—Control or regulation of mechanical tension of record carrier, e.g. tape tension

Abstract

PURPOSE:To facilitate control over the absorption of longitudinal vibration of a tape and to apply the best DC tension to the tape simultaneously with and independently of the said control, by detecting the tape tension. CONSTITUTION:The output signal 53 of a tape tension detector TD using, for example, an optical slit plate is amplified 32 and then supplied to a differentiating circuit 33 and a low-pass filter 36. The output of the differentiating circuit 33 is compared with a reference voltage 35 and amplified by a differential amplifier 34 and then drives a tape vibration damping device DA which uses, for example, a voice coil. Since the output of the differentiating circuit 33 shows a speed variation component due to the vibration of a tape T, the tape vibration damping device DA damps the vibration of the running tape T excellently. An output signal from a low-pass filter 36 is compared with a reference voltage 38 and amplified by a differential amplifier 37 and then supplied to a motor 39 which drives a feed reel to vary torque, controlling the tension of the tape T.
JP55172498A 1980-12-06 1980-12-06 Controller for tape tension of tape run system in compact cassette Granted JPS5798152A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP55172498A JPS5798152A (en) 1980-12-06 1980-12-06 Controller for tape tension of tape run system in compact cassette
GB8136647A GB2089074B (en) 1980-12-06 1981-12-04 Apparatus for controlling the tension of a cassette tape
US06/327,673 US4429261A (en) 1980-12-06 1981-12-04 Apparatus for controlling the tension of a cassette tape
DE3148359A DE3148359C2 (en) 1980-12-06 1981-12-07 Device for damping dynamic changes in tape tension in a magnetic tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55172498A JPS5798152A (en) 1980-12-06 1980-12-06 Controller for tape tension of tape run system in compact cassette

Publications (2)

Publication Number Publication Date
JPS5798152A true JPS5798152A (en) 1982-06-18
JPS6223383B2 JPS6223383B2 (en) 1987-05-22

Family

ID=15943083

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55172498A Granted JPS5798152A (en) 1980-12-06 1980-12-06 Controller for tape tension of tape run system in compact cassette

Country Status (1)

Country Link
JP (1) JPS5798152A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01176352A (en) * 1987-12-29 1989-07-12 Matsushita Electric Ind Co Ltd Tape tension control device
JPH01176351A (en) * 1987-12-29 1989-07-12 Matsushita Electric Ind Co Ltd Tape tension control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01176352A (en) * 1987-12-29 1989-07-12 Matsushita Electric Ind Co Ltd Tape tension control device
JPH01176351A (en) * 1987-12-29 1989-07-12 Matsushita Electric Ind Co Ltd Tape tension control device

Also Published As

Publication number Publication date
JPS6223383B2 (en) 1987-05-22

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