GB1506637A - Magnetic tape transport having variable torque constant drive motor - Google Patents

Magnetic tape transport having variable torque constant drive motor

Info

Publication number
GB1506637A
GB1506637A GB25982/75A GB2598275A GB1506637A GB 1506637 A GB1506637 A GB 1506637A GB 25982/75 A GB25982/75 A GB 25982/75A GB 2598275 A GB2598275 A GB 2598275A GB 1506637 A GB1506637 A GB 1506637A
Authority
GB
United Kingdom
Prior art keywords
motor
tape
torque constant
field
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.)
Expired
Application number
GB25982/75A
Other languages
English (en)
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.)
Ampex Corp
Original Assignee
Ampex 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 Ampex Corp filed Critical Ampex Corp
Publication of GB1506637A publication Critical patent/GB1506637A/en
Expired 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
    • G11B15/44—Speed-changing arrangements; Reversing arrangements; Drive transfer means therefor

Landscapes

  • Control Of Direct Current Motors (AREA)
  • Control Of Multiple Motors (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
GB25982/75A 1974-07-01 1975-06-18 Magnetic tape transport having variable torque constant drive motor Expired GB1506637A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US484394A US3916441A (en) 1974-07-01 1974-07-01 Tape transport having variable torque constant reel and capstan drive motor

Publications (1)

Publication Number Publication Date
GB1506637A true GB1506637A (en) 1978-04-05

Family

ID=23923993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25982/75A Expired GB1506637A (en) 1974-07-01 1975-06-18 Magnetic tape transport having variable torque constant drive motor

Country Status (5)

Country Link
US (1) US3916441A (enExample)
JP (1) JPS5129908A (enExample)
BE (1) BE830844A (enExample)
FR (1) FR2277381A1 (enExample)
GB (1) GB1506637A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000622A (en) * 1977-06-28 1979-01-10 Yukawa Y Fast wind device for cassette tapes

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR7604620A (pt) * 1975-07-17 1977-06-21 A Dejoux Dispositivo eletronico e cinematico de registro seletivo de sinais sobre fita-suporte unica
JPS545408A (en) * 1977-06-13 1979-01-16 Matsushita Electric Ind Co Ltd Magnetic recorder-reproducer
US4431125A (en) * 1980-07-24 1984-02-14 Bell & Howell Company Tape advancing method and apparatus with fast tape advance mode
US4442963A (en) * 1980-07-24 1984-04-17 Datatape Incorporated Tape advancing method and apparatus with fast tape advance mode
JPS5774855A (en) * 1980-10-29 1982-05-11 Hitachi Denshi Ltd Helical scan type video tape recorder
US4494711A (en) * 1983-01-31 1985-01-22 Storage Technology Corporation Dual mode control system for controlling tape position in a reel to reel transport apparatus
JPH0469850A (ja) * 1990-07-10 1992-03-05 Sony Corp テープレコーダの位置制御装置
US20250022484A1 (en) * 2023-07-11 2025-01-16 International Business Machines Corporation Enhanced dynamic braking algorithm for tape storage device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1269137A (fr) * 1960-06-22 1961-08-11 Bull Sa Machines Perfectionnements aux appareils de lecture et d'enregistrement à ruban magnétique
US3487392A (en) * 1963-03-22 1969-12-30 Ampex Incremental web member drive system
US3400895A (en) * 1966-04-14 1968-09-10 Gen Electric Tape handler reel control system
GB1195122A (en) * 1967-05-16 1970-06-17 Int Computers Ltd Improvements in Tape Handling Apparatus.
GB1247182A (en) * 1968-01-17 1971-09-22 Tmm Research Ltd Improvements in or relating to textile drawtwisting machines
US3673473A (en) * 1970-10-19 1972-06-27 Ibm Magnetic tape unit reel motor tension control
US3811078A (en) * 1972-11-28 1974-05-14 Gen Electric Dc motor drive system for winding reel
JPS4980519A (enExample) * 1972-12-13 1974-08-03

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000622A (en) * 1977-06-28 1979-01-10 Yukawa Y Fast wind device for cassette tapes

Also Published As

Publication number Publication date
JPS5129908A (enExample) 1976-03-13
US3916441A (en) 1975-10-28
BE830844A (fr) 1975-10-16
FR2277381A1 (fr) 1976-01-30
FR2277381B1 (enExample) 1979-02-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940618