JPS6455725A - Rotary drum controller - Google Patents
Rotary drum controllerInfo
- Publication number
- JPS6455725A JPS6455725A JP21329687A JP21329687A JPS6455725A JP S6455725 A JPS6455725 A JP S6455725A JP 21329687 A JP21329687 A JP 21329687A JP 21329687 A JP21329687 A JP 21329687A JP S6455725 A JPS6455725 A JP S6455725A
- Authority
- JP
- Japan
- Prior art keywords
- driving
- drum
- vicinity
- driving part
- head
- 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
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
PURPOSE:To prevent deterioration of a tracking at the time of reproducting and to always stably execute the noiseless reproduction with a satisfactory S/N by current-driving a driving part at the period related to the rotation period of a rotary drum and in the vicinity of a basic frequency and voltage-driving it in the vicinity of a mechanical resonance frequency. CONSTITUTION:On a driving part 4a of a rotary drum driving device, a head 5 is arranged which is cooperated with a coil and drives a magnetic tape 13 in the shaft direction and a current is supplied from a contact 14 to the driving part 4a. The contact 14 is brought into contact with an electrode 15 and connected electrically to the coil. The head 5 is connected to an upper transformer 7, and a lower transformer 8 coupled magnetically with the transformer 7 and the driving part 4a are housed, and arranged into the drum by an upper drum 3 and a lower drum 2. The driving part 4a of the driving device is current- driven at the period related to the rotation period of the drum and in the vicinity of the driving basic frequency, voltage driven in the vicinity of the mechanical resonance frequency and the head locus at the time of recording and the head locus at the time of reproducing are made coincident.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21329687A JPH0636245B2 (en) | 1987-08-27 | 1987-08-27 | Rotating drum controller |
GB8820305A GB2209237B (en) | 1987-08-27 | 1988-08-26 | Head-carrier drum control system |
DE19883829050 DE3829050A1 (en) | 1987-08-27 | 1988-08-26 | HEADBALL DRUM CONTROL SYSTEM |
US07/236,988 US4970611A (en) | 1987-08-27 | 1988-08-26 | Variable tape speed head-carrier drum control apparatus |
GB8820306A GB2209238B (en) | 1987-08-27 | 1988-08-26 | Head-carrier drum control apparatus |
DE19883829040 DE3829040A1 (en) | 1987-08-27 | 1988-08-26 | HEAD BEARING DRUM CONTROL DEVICE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21329687A JPH0636245B2 (en) | 1987-08-27 | 1987-08-27 | Rotating drum controller |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6455725A true JPS6455725A (en) | 1989-03-02 |
JPH0636245B2 JPH0636245B2 (en) | 1994-05-11 |
Family
ID=16636773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21329687A Expired - Lifetime JPH0636245B2 (en) | 1987-08-27 | 1987-08-27 | Rotating drum controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0636245B2 (en) |
-
1987
- 1987-08-27 JP JP21329687A patent/JPH0636245B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0636245B2 (en) | 1994-05-11 |
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