JPH0431464U - - Google Patents
Info
- Publication number
- JPH0431464U JPH0431464U JP7230990U JP7230990U JPH0431464U JP H0431464 U JPH0431464 U JP H0431464U JP 7230990 U JP7230990 U JP 7230990U JP 7230990 U JP7230990 U JP 7230990U JP H0431464 U JPH0431464 U JP H0431464U
- Authority
- JP
- Japan
- Prior art keywords
- temperature sensor
- recording medium
- data
- detects
- disk device
- 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
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
Description
第１図はこの考案の一実施例を示すブロツク図
、第２図は従来例とこの発明の動作説明用波形図
、第３図は記録電流と再生出力振幅の温度変動時
における特性を示す図、第４図は従来の波形整形
回路のブロツク図である。
図において１は微分器、２はゼロクロス検出器
、３はノイズ除去回路、４はスライスレベル発生
回路、６はスライスレベル切替え回路、７は温度
センサである。なお、各図中、同一符号は同一又
は相当部分を示す。
Fig. 1 is a block diagram showing an embodiment of this invention, Fig. 2 is a waveform diagram for explaining the operation of the conventional example and the present invention, and Fig. 3 is a diagram showing the characteristics of recording current and reproduction output amplitude when temperature fluctuates. , FIG. 4 is a block diagram of a conventional waveform shaping circuit. In the figure, 1 is a differentiator, 2 is a zero-cross detector, 3 is a noise removal circuit, 4 is a slice level generation circuit, 6 is a slice level switching circuit, and 7 is a temperature sensor. In each figure, the same reference numerals indicate the same or equivalent parts.
Claims (1)
再生される記録媒体と、この記録媒体に近接して
配置され、上記データの記録及び再生を行なう磁
気ヘツドとが密封した筺体に納められており、且
つ上記磁気ヘツドにより上記記録媒体から再生し
たアナログ波形信号をパルス化する波形整形回路
を備えた磁気デイスク装置において、上記筺体の
内部温度を検知する温度センサと、この温度セン
サに接続され、その検知内部温度に応じてスライ
スレベルを切替える回路とを設けたことを特徴と
する磁気デイスク装置。 A recording medium on which data is recorded or on which the recorded data is reproduced, and a magnetic head placed close to the recording medium and recording and reproducing the data are housed in a sealed housing, The magnetic disk device further includes a waveform shaping circuit that pulses an analog waveform signal reproduced from the recording medium by the magnetic head, and a temperature sensor that detects the internal temperature of the housing, and a temperature sensor connected to the temperature sensor that detects the temperature sensor. A magnetic disk device characterized by being provided with a circuit for switching a slice level according to internal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7230990U JPH0431464U (en) | 1990-07-09 | 1990-07-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7230990U JPH0431464U (en) | 1990-07-09 | 1990-07-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0431464U true JPH0431464U (en) | 1992-03-13 |
Family
ID=31610137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7230990U Pending JPH0431464U (en) | 1990-07-09 | 1990-07-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0431464U (en) |
-
1990
- 1990-07-09 JP JP7230990U patent/JPH0431464U/ja active Pending
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