JPS5545176A - Magnetic tape driving controller - Google Patents
Magnetic tape driving controllerInfo
- Publication number
- JPS5545176A JPS5545176A JP11884378A JP11884378A JPS5545176A JP S5545176 A JPS5545176 A JP S5545176A JP 11884378 A JP11884378 A JP 11884378A JP 11884378 A JP11884378 A JP 11884378A JP S5545176 A JPS5545176 A JP S5545176A
- Authority
- JP
- Japan
- Prior art keywords
- tape
- speed
- magnetic tape
- time
- motor
- 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
Links
Abstract
PURPOSE: To obtain an efficient controller of simple constitution by limiting the speed of a magnetic tape within a tape speed range corresponding to the tape speed and tape length after rapidly feeding the tape and then by turning reels at low and constant speeds before the fixed time of a desired tape position.
CONSTITUTION: Motor 6 is rotated at a high speed to feed magnetic tape 4 rapidly. Then, motor 6 is turned at the high speed and stopped by turns to limit relation T2x' between tape speed 1/T and conversion time x' (One minute of the time of tape length "x" expressed by time is converted into 26 seconds.) corresponding to the tape length within a tape speed range. When tape position (x1) leads desired tape position (x0) by two seconds, for example, motor 6 is turned at a low speed to run magnetic tape 4 slowly and at a position one frame before desired tape position (x0), a driving current is cut off to stop magnetic tape 4 at the fixed position. In this way, an efficient controller of simple constitution can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11884378A JPS5545176A (en) | 1978-09-27 | 1978-09-27 | Magnetic tape driving controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11884378A JPS5545176A (en) | 1978-09-27 | 1978-09-27 | Magnetic tape driving controller |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5545176A true JPS5545176A (en) | 1980-03-29 |
JPS6141055B2 JPS6141055B2 (en) | 1986-09-12 |
Family
ID=14746519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11884378A Granted JPS5545176A (en) | 1978-09-27 | 1978-09-27 | Magnetic tape driving controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5545176A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58139355A (en) * | 1982-02-11 | 1983-08-18 | Sony Corp | Tape running device |
JPS61110361A (en) * | 1984-11-02 | 1986-05-28 | Nippon Telegr & Teleph Corp <Ntt> | Stopping device for tape run |
JPH0597897A (en) * | 1991-10-02 | 1993-04-20 | Q P Corp | Egg-shell membrane decomposed product |
US6749339B1 (en) | 1999-09-03 | 2004-06-15 | Sumitomo Electric Industries, Ltd. | Hydrodynamic bearing assembly and spindle motor having the same |
-
1978
- 1978-09-27 JP JP11884378A patent/JPS5545176A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58139355A (en) * | 1982-02-11 | 1983-08-18 | Sony Corp | Tape running device |
JPS61110361A (en) * | 1984-11-02 | 1986-05-28 | Nippon Telegr & Teleph Corp <Ntt> | Stopping device for tape run |
JPH0597897A (en) * | 1991-10-02 | 1993-04-20 | Q P Corp | Egg-shell membrane decomposed product |
US6749339B1 (en) | 1999-09-03 | 2004-06-15 | Sumitomo Electric Industries, Ltd. | Hydrodynamic bearing assembly and spindle motor having the same |
US7033078B2 (en) | 1999-09-03 | 2006-04-25 | Sumitomo Electric Industries, Ltd. | Hydrodynamic bearing assembly and spindle motor having the same |
Also Published As
Publication number | Publication date |
---|---|
JPS6141055B2 (en) | 1986-09-12 |
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