JPS6446204A - Magnetic disk device - Google Patents

Magnetic disk device

Info

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
Application number
JP20283487A
Other languages
Japanese (ja)
Inventor
Sadayoshi Sakagami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokico Ltd
Original Assignee
Tokico Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tokico Ltd filed Critical Tokico Ltd
Priority to JP20283487A priority Critical patent/JPS6446204A/en
Publication of JPS6446204A publication Critical patent/JPS6446204A/en
Pending legal-status Critical Current

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  • 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.
JP20283487A 1987-08-14 1987-08-14 Magnetic disk device Pending JPS6446204A (en)

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)

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