JPS54118206A - Magnetic recorder-reproducer - Google Patents
Magnetic recorder-reproducerInfo
- Publication number
- JPS54118206A JPS54118206A JP2463578A JP2463578A JPS54118206A JP S54118206 A JPS54118206 A JP S54118206A JP 2463578 A JP2463578 A JP 2463578A JP 2463578 A JP2463578 A JP 2463578A JP S54118206 A JPS54118206 A JP S54118206A
- Authority
- JP
- Japan
- Prior art keywords
- control
- resonance frequency
- respect
- magnetic tape
- flutter
- 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 reduce wow and flutter and jitter effectively by specifying the natural resonance frequency of the control system and the spring constant of magnetic tapes through specifying of the mass of a revolving roller.
CONSTITUTION: A closed loop control is formed with respect to the conveying speed of a magnetic tape 2 among magnetic tape 2, control head 13, rotating speed control circuit 22, motor 21, rubber belt 20, flywheel 19 and capstan 16 so as to maintain the phase of the control signal reproduced from the control head 13 constant at the reproducing. Here, if the resonance frequency f2 of the mass (m) of a revolving roller 5 and the spring constant (k) of the magnetic tape 2 is set at the relation of f1>f2 with respect 10 f1, control within the closed loop with respect to f2 becomes possible, as a result of which the wow and flutter and jitter at the reproducing based on the resonance frequency f2 do not appear.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53024635A JPS5843825B2 (en) | 1978-03-04 | 1978-03-04 | magnetic recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53024635A JPS5843825B2 (en) | 1978-03-04 | 1978-03-04 | magnetic recording and reproducing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54118206A true JPS54118206A (en) | 1979-09-13 |
JPS5843825B2 JPS5843825B2 (en) | 1983-09-29 |
Family
ID=12143581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53024635A Expired JPS5843825B2 (en) | 1978-03-04 | 1978-03-04 | magnetic recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5843825B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60118606U (en) * | 1984-01-20 | 1985-08-10 | シ−ケ−デイ株式会社 | Packaging punching device |
-
1978
- 1978-03-04 JP JP53024635A patent/JPS5843825B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5843825B2 (en) | 1983-09-29 |
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