GB1372139A - Tape transport apparatus - Google Patents
Tape transport apparatusInfo
- 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
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.
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)
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)
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 |
-
1972
- 1972-10-06 JP JP47099970A patent/JPS4860609A/ja active Pending
- 1972-10-13 GB GB4730672A patent/GB1372139A/en not_active Expired
- 1972-10-18 FR FR7237562A patent/FR2161564A5/fr not_active Expired
- 1972-10-24 IT IT3083172A patent/IT969825B/en active
- 1972-11-08 CA CA156,036A patent/CA995333A/en not_active Expired
- 1972-11-09 DE DE19722254901 patent/DE2254901C2/en not_active Expired
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 |