JPS58129154U - Disk rotation detection device - Google Patents
Disk rotation detection deviceInfo
- Publication number
- JPS58129154U JPS58129154U JP2636182U JP2636182U JPS58129154U JP S58129154 U JPS58129154 U JP S58129154U JP 2636182 U JP2636182 U JP 2636182U JP 2636182 U JP2636182 U JP 2636182U JP S58129154 U JPS58129154 U JP S58129154U
- Authority
- JP
- Japan
- Prior art keywords
- detection device
- rotation detection
- disk rotation
- disk
- index 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
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図〜第３図は何れも従来のディスク円盤回転検出装
置を示すもので、第１図はディスク装置の原理図、第２
図はディスク円盤回転検出装置の回路図、第３図はディ
スク円盤のインデックス信号波形図である。第４図およ
び第５図は何れもこの考案の一実施例を示すもので、第
４図はブロック図、第５図は信号波形図である。
図において、１はディスク円盤、５はインデックス信号
、６はラッチ回路、７は発光素子、１２はマルチバイブ
レータ、１３．１４は第１と第２のタイミング回路、１
５．１６は第１と第２サンプル信号、１７はＯＲゲート
回路である。なお、図中同一符号は同一または相当部分
を示す。Figures 1 to 3 all show conventional disk rotation detection devices, with Figure 1 being a principle diagram of the disk device, and Figure 2 being a diagram showing the principle of the disk device.
The figure is a circuit diagram of the disk rotation detection device, and FIG. 3 is a waveform diagram of the index signal of the disk. 4 and 5 both show an embodiment of this invention, with FIG. 4 being a block diagram and FIG. 5 being a signal waveform diagram. In the figure, 1 is a disk disk, 5 is an index signal, 6 is a latch circuit, 7 is a light emitting element, 12 is a multivibrator, 13.14 is a first and second timing circuit, 1
5.16 are the first and second sample signals, and 17 is an OR gate circuit. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (2)
のパルスによって反転するマツチ・バイブレータと、こ
のマルチ・バイブレークの出力をトリガにして上記イン
デックス信号のパルス間隔を計測する複数のタイミング
回路と、この各タイミング回路のサンプル信号の論調和
をとってインデックス信号を保持するラッチ回路に出力
するＯＲゲート回路とを備えたことを特徴とするディス
ク円盤回転検出装置。 “(1) A match vibrator that is inverted by the pulse of an index signal synchronized with the rotation of the disk, a plurality of timing circuits that measure the pulse interval of the index signal using the output of this multi-vibrake as a trigger, and each of these 1. A disk rotation detection device comprising: an OR gate circuit that harmonizes sample signals of a timing circuit and outputs the result to a latch circuit that holds an index signal. “
を備えたことを特徴とする実用新案登録請求の範囲第１
項記載のディスク円盤回転検出装置。(2) Utility model registration claim 1, which is characterized by comprising a light emitting element that blinks in response to an output signal from a latch circuit.
Disk rotation detection device as described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2636182U JPS58129154U (en) | 1982-02-25 | 1982-02-25 | Disk rotation detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2636182U JPS58129154U (en) | 1982-02-25 | 1982-02-25 | Disk rotation detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58129154U true JPS58129154U (en) | 1983-09-01 |
Family
ID=30038320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2636182U Pending JPS58129154U (en) | 1982-02-25 | 1982-02-25 | Disk rotation detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58129154U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015166687A (en) * | 2014-03-03 | 2015-09-24 | 三友工業株式会社 | Rotational speed detection device and rotational speed detection method using rotational speed detection device |
-
1982
- 1982-02-25 JP JP2636182U patent/JPS58129154U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015166687A (en) * | 2014-03-03 | 2015-09-24 | 三友工業株式会社 | Rotational speed detection device and rotational speed detection method using rotational speed detection device |
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