JPH03115956U - - Google Patents
Info
- Publication number
- JPH03115956U JPH03115956U JP2039190U JP2039190U JPH03115956U JP H03115956 U JPH03115956 U JP H03115956U JP 2039190 U JP2039190 U JP 2039190U JP 2039190 U JP2039190 U JP 2039190U JP H03115956 U JPH03115956 U JP H03115956U
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- magnetic disk
- time
- generating
- reproduced
- 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
- 238000009826 distribution Methods 0.000 claims 1
- 238000011156 evaluation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Digital Magnetic Recording (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Description
第１図はこの考案の一実施例を示す構成図、第
２図および第３図はその説明のための図、第４図
は従来例の構成図、第５図〜第７図はその説明の
ための図である。
１……磁気デイスク、２……再生磁気デイスク
、４……ピーク検出器、５……タイムインターバ
ルアナライザ、１１，１２……オア回路、１３…
…コンパーレータ、１４……セレクタ、１５……
インバータ。
Fig. 1 is a block diagram showing an embodiment of this invention, Figs. 2 and 3 are diagrams for explaining it, Fig. 4 is a block diagram of a conventional example, and Figs. 5 to 7 are explanations thereof. This is a diagram for 1... Magnetic disk, 2... Reproducing magnetic disk, 4... Peak detector, 5... Time interval analyzer, 11, 12... OR circuit, 13...
...Comparator, 14...Selector, 15...
inverter.
Claims (1)
ークが所定の時間間隔をもつて交互に現われる信
号を再生し、この再生信号の正極側ピークおよび
負極側ピークにそれぞれ対応する第１のパルスお
よび第２のパルスを発生するパルス発生手段と、 上記第１のパルスから第２のパルスまでの第１
の時間および上記第２のパルスから第１のパルス
までの第２の時間を測定する時間測定手段と、 上記時間測定手段で測定される複数の第１の時
間および複数の第２の時間の度数分布を個別に演
算処理する処理手段とを備えてなる磁気デイスク
装置のタイムマージン評価装置。[Claims for Utility Model Registration] A signal in which a positive peak and a negative peak appear alternately at a predetermined time interval is reproduced from a magnetic disk, and pulse generating means for generating a first pulse and a second pulse;
and a second time from the second pulse to the first pulse; and a frequency of the plurality of first times and the plurality of second times measured by the time measuring means. A time margin evaluation device for a magnetic disk device, comprising processing means for individually processing distributions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2039190U JP2528180Y2 (en) | 1990-02-28 | 1990-02-28 | Time margin evaluation device for magnetic disk drives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2039190U JP2528180Y2 (en) | 1990-02-28 | 1990-02-28 | Time margin evaluation device for magnetic disk drives |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03115956U true JPH03115956U (en) | 1991-12-02 |
| JP2528180Y2 JP2528180Y2 (en) | 1997-03-05 |
Family
ID=31523482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2039190U Expired - Fee Related JP2528180Y2 (en) | 1990-02-28 | 1990-02-28 | Time margin evaluation device for magnetic disk drives |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2528180Y2 (en) |
-
1990
- 1990-02-28 JP JP2039190U patent/JP2528180Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2528180Y2 (en) | 1997-03-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |