JPS5532220A - Saturation level detector - Google Patents
Saturation level detectorInfo
- Publication number
- JPS5532220A JPS5532220A JP10324978A JP10324978A JPS5532220A JP S5532220 A JPS5532220 A JP S5532220A JP 10324978 A JP10324978 A JP 10324978A JP 10324978 A JP10324978 A JP 10324978A JP S5532220 A JPS5532220 A JP S5532220A
- Authority
- JP
- Japan
- Prior art keywords
- level
- output
- time
- saturation level
- saturation
- 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.)
- Pending
Links
Abstract
PURPOSE: To obtain a saturation level in a frequency band where no recording demagnetization occurs, by making a level regulator regulate several reference signals to fixed values.
CONSTITUTION: In a period of time from T0 to T4, level regulator 13 is so adjusted that the output of recording amplifier 13 will be level Q much higher than saturation level Q3. At time T4, the output of recording amplifier 13 is adjusted to level Q2 much less than saturation level Q3. As a result, the output level of adder circuit 22 at time T5 is equal to difference P1-P2 between output level P1 of holding circuit 23 and level P2 of output (d) of peak detector 21 and the level of output (g) of peak detector 25 after time T4, on the other hand, becomes Q3 for demagnetizing, so that the level of output (h) of adder circuit 26 after time T5 will be Q2+(P1-P2). This level (h) is equivalent to the saturation level. Therefore, the saturation level in a band where no demagnetization occurs can be found.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10324978A JPS5532220A (en) | 1978-08-24 | 1978-08-24 | Saturation level detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10324978A JPS5532220A (en) | 1978-08-24 | 1978-08-24 | Saturation level detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5532220A true JPS5532220A (en) | 1980-03-06 |
Family
ID=14349160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10324978A Pending JPS5532220A (en) | 1978-08-24 | 1978-08-24 | Saturation level detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5532220A (en) |
-
1978
- 1978-08-24 JP JP10324978A patent/JPS5532220A/en active Pending
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