GB1372139A - Tape transport apparatus - Google Patents

Tape transport apparatus

Info

Publication number
GB1372139A
GB1372139A GB4730672A GB4730672A GB1372139A GB 1372139 A GB1372139 A GB 1372139A GB 4730672 A GB4730672 A GB 4730672A GB 4730672 A GB4730672 A GB 4730672A GB 1372139 A GB1372139 A GB 1372139A
Authority
GB
United Kingdom
Prior art keywords
tape
head
tracks
speed
tension
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
GB4730672A
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1372139A publication Critical patent/GB1372139A/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
    • G11B15/26—Driving record carriers by members acting directly or indirectly thereon
    • G11B15/32—Driving record carriers by members acting directly or indirectly thereon through the reels or cores on to which the record carrier is wound
    • 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
    • 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
    • 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
    • G11B15/52—Controlling, regulating, or indicating speed by using signals recorded on, or derived from, record carrier

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

1372139 Automatic speed control INTERNATIONAL BUSINESS MACHINES CORP 13 Oct 1972 [15 Nov 1971] 47306/72 Heading G3R The reel motors of an unbuffered tape drive are jointly controlled in accordance with changes in the detected values of tape speed and tension. In the embodiment shown the tape reels 10, 13 are driven by motors 11, 14 respectively which are controlled differentially by network 25 in accordance with speed and tension error signals produced by comparator 20. The wide tape 12 carries groups of longitudinal data tracks A, B and centrally disposed prerecorded reference tracks 15 which co-operate with head 19. An actual speed signal is derived from the prerecorded tracks and a tension signal provided by a known method e.g. feeler, pressure jet or load cell transducer. The actual signals are compared with command signals at 23, 24 in comparator 20. Preferably the control head 20 is mounted adjacent the data reading head 32 and also derives lateral position information whereby the actuator 34 can be made to align the reading head with the data tracks. In a modification, Fig.2 (not shown), the data head spans the full width of the tape.
GB4730672A 1971-11-15 1972-10-13 Tape transport apparatus Expired GB1372139A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19892571A 1971-11-15 1971-11-15

Publications (1)

Publication Number Publication Date
GB1372139A true GB1372139A (en) 1974-10-30

Family

ID=22735471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4730672A Expired GB1372139A (en) 1971-11-15 1972-10-13 Tape transport apparatus

Country Status (6)

Country Link
JP (1) JPS4860609A (en)
CA (1) CA995333A (en)
DE (1) DE2254901C2 (en)
FR (1) FR2161564A5 (en)
GB (1) GB1372139A (en)
IT (1) IT969825B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS519715U (en) * 1974-07-09 1976-01-24
JPS5930216A (en) * 1982-08-14 1984-02-17 Victor Co Of Japan Ltd Magnetic recording and reproducing device for digital signal
JPS60136937A (en) * 1983-12-26 1985-07-20 Hitachi Ltd Tape carrying device
JP2835953B2 (en) * 1987-11-19 1998-12-14 東芝メカトロニクス株式会社 Web take-up control device
JPH02223050A (en) * 1990-01-24 1990-09-05 Hitachi Ltd Tape tension adjusting device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263031A (en) * 1962-05-29 1966-07-26 Sperry Rand Corp High-low frequency homing
US3112052A (en) * 1962-07-16 1963-11-26 Winston Res Corp Magnetic tape control system
US3596005A (en) * 1969-01-13 1971-07-27 Viatron Computer Systems Corp Capstan-free tape recorder
US3606201A (en) * 1969-07-15 1971-09-20 Sperry Rand Corp Constant speed,constant tension tape transport

Also Published As

Publication number Publication date
JPS4860609A (en) 1973-08-25
DE2254901C2 (en) 1981-10-01
CA995333A (en) 1976-08-17
IT969825B (en) 1974-04-10
FR2161564A5 (en) 1973-07-06
DE2254901A1 (en) 1973-05-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee