GB1427411A - Magnetic tape recording deck drive system and cassette - Google Patents
Magnetic tape recording deck drive system and cassetteInfo
- Publication number
- GB1427411A GB1427411A GB1913973A GB1913973A GB1427411A GB 1427411 A GB1427411 A GB 1427411A GB 1913973 A GB1913973 A GB 1913973A GB 1913973 A GB1913973 A GB 1913973A GB 1427411 A GB1427411 A GB 1427411A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tape
- capstan
- cassette
- motor
- roll
- 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
- G11B15/26—Driving record carriers by members acting directly or indirectly thereon
- G11B15/28—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal
-
- 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
- G11B15/54—Controlling, regulating, or indicating speed by stroboscope; by tachometer
Landscapes
- Control Of Multiple Motors (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
1427411 Automatic control of magnetic tape drive ARVIN INDUSTRIES Inc 19 April 1973 [24 April 1972(2)] 19139/73 Heading G3R A deck for use with a tape cassette having supply and take-up rolls includes motors for driving each roll and a capstan. The rotational speed of the capstan is sensed and regulated, and the power required by the capstan motor is also measured and used to control the energization of the roll motors so as to control the tape tension. As shown, a tape deck has toothed drive members 20, 21 for engaging tape rolls in a cassette. Guide rollers (54) in the cassette, Figs. 2, 3 (not shown), constrain a tape to engage transducers 45, 48 and form a partial loop around a capstan 35 driven by a D.C. motor 38 which also drives a tachogenerator 40 forming part of a speed regulating loop including a control unit 80. The current required by the motor 38 is also sensed by unit 80, and corresponding control signals are fed to motors 28, 30 driving members 20, 21 in order to ensure that the take-up roll is driven hard enough and the supply roll is retarded sufficiently to maintain the tape in frictional contact with the capstan 35 and minimise the current in motor 38 by equalizing the tape tension on each side of the capstan.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00246812A US3807654A (en) | 1972-04-24 | 1972-04-24 | Magnetic tape recording deck, drive system, and cassette |
US05/246,635 US3987980A (en) | 1972-04-24 | 1972-04-24 | Simplified precision tape cassette and system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1427411A true GB1427411A (en) | 1976-03-10 |
Family
ID=26938116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1913973A Expired GB1427411A (en) | 1972-04-24 | 1973-04-19 | Magnetic tape recording deck drive system and cassette |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS4922911A (en) |
DE (1) | DE2318628A1 (en) |
FR (1) | FR2181980A1 (en) |
GB (1) | GB1427411A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5248006B2 (en) * | 1974-04-11 | 1977-12-07 | ||
JPS532210U (en) * | 1976-06-24 | 1978-01-11 | ||
NL7808832A (en) * | 1978-08-28 | 1980-03-03 | Philips Nv | MAGNETIC BELT DRIVE SYSTEM. |
-
1973
- 1973-04-13 DE DE19732318628 patent/DE2318628A1/en active Pending
- 1973-04-19 GB GB1913973A patent/GB1427411A/en not_active Expired
- 1973-04-19 JP JP48043703A patent/JPS4922911A/ja active Pending
- 1973-04-20 FR FR7314705A patent/FR2181980A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE2318628A1 (en) | 1973-11-15 |
FR2181980A1 (en) | 1973-12-07 |
JPS4922911A (en) | 1974-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed |