JPS6446204A - Magnetic disk device - Google Patents
Magnetic disk deviceInfo
- Publication number
- JPS6446204A JPS6446204A JP20283487A JP20283487A JPS6446204A JP S6446204 A JPS6446204 A JP S6446204A JP 20283487 A JP20283487 A JP 20283487A JP 20283487 A JP20283487 A JP 20283487A JP S6446204 A JPS6446204 A JP S6446204A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- reading out
- gate
- supplied
- out signal
- 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
Landscapes
- Digital Magnetic Recording (AREA)
Abstract
PURPOSE:To enable testing without changing the constant, etc., in the inside part of test equipment by providing a pulsing logical circuit which outputs the change point of a comparator generated when a gate signal is on as a digitized reading out signal. CONSTITUTION:The reading out signal A outputted from a low-pass filter 5 is supplied to an absolute value circuit 10, by which the absolute value of the signal is taken. The corresponding signal is supplied via a control voltage generator 9 to an AGC amplifier 3 so that automatic gain control is executed. The signal is also supplied to a gate signal generator 11. The set level signal G of a pair of gate sections where the level is fixed and the reading out signal A are compared and the gate signal D1 which turns on in the section where the reading out signal A is large is outputted. The set level signal G of a pair of the gate sections supplied from a gate level fluctuation timer circuit 13 and the reading out signal A are compared and the gate signal D which turns on in the section where the reading out signal A is large is formed and is supplied to the pulsing logical circuit 8. The test is thereby carried out without changing the constant, etc., in the inside part of the test equipment.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20283487A JPS6446204A (en) | 1987-08-14 | 1987-08-14 | Magnetic disk device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20283487A JPS6446204A (en) | 1987-08-14 | 1987-08-14 | Magnetic disk device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6446204A true JPS6446204A (en) | 1989-02-20 |
Family
ID=16463963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20283487A Pending JPS6446204A (en) | 1987-08-14 | 1987-08-14 | Magnetic disk device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6446204A (en) |
-
1987
- 1987-08-14 JP JP20283487A patent/JPS6446204A/en active Pending
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