JPS5532221A - Saturation level detector - Google Patents
Saturation level detectorInfo
- Publication number
- JPS5532221A JPS5532221A JP10325078A JP10325078A JPS5532221A JP S5532221 A JPS5532221 A JP S5532221A JP 10325078 A JP10325078 A JP 10325078A JP 10325078 A JP10325078 A JP 10325078A JP S5532221 A JPS5532221 A JP S5532221A
- Authority
- JP
- Japan
- Prior art keywords
- level
- output
- reference signal
- recorded
- saturation level
- 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 demagnetization occurs by making a level comparator compare the recording input of a steer-step waveform reference signal with its regeneration output in terms of state.
CONSTITUTION: A reference signal of frequency (f3) in a band where demagnetization occurs is inputted from signal generator 16 and amplitude-modulated before being recorded on magnetic tape 19. This recorded signal is regenerated soon by regenerating head 20 and inputted via peak detector 22 to level comparator 23, where it is compared with output (f) of analog memory 24. Then, when level (e) of the output of peak detector 22 becomes lower than the level of output (f) of analog memory 24, the output of level comparator 23 is inverted. As a result, the amplitude of the reference signal to be recorded is increased or decreased and the reference signal level when the regeneration output level is the highest is equivalent to the saturation level. In this way, the saturation level in the band where demagnetization occurs can be found.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10325078A JPS5532221A (en) | 1978-08-24 | 1978-08-24 | Saturation level detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10325078A JPS5532221A (en) | 1978-08-24 | 1978-08-24 | Saturation level detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5532221A true JPS5532221A (en) | 1980-03-06 |
Family
ID=14349188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10325078A Pending JPS5532221A (en) | 1978-08-24 | 1978-08-24 | Saturation level detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5532221A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62185341A (en) * | 1986-02-08 | 1987-08-13 | Mitsubishi Electric Corp | Resin sealed type semiconductor device |
-
1978
- 1978-08-24 JP JP10325078A patent/JPS5532221A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62185341A (en) * | 1986-02-08 | 1987-08-13 | Mitsubishi Electric Corp | Resin sealed type semiconductor device |
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