JPS5894170U - Index signal generator for disk drive device - Google Patents
Index signal generator for disk drive deviceInfo
- Publication number
- JPS5894170U JPS5894170U JP18962581U JP18962581U JPS5894170U JP S5894170 U JPS5894170 U JP S5894170U JP 18962581 U JP18962581 U JP 18962581U JP 18962581 U JP18962581 U JP 18962581U JP S5894170 U JPS5894170 U JP S5894170U
- Authority
- JP
- Japan
- Prior art keywords
- disk
- motor
- index signal
- disk drive
- drive 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
Landscapes
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Rotational Drive Of Disk (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案にかかわるディスク駆動装置に装着され
るディスクカセットの一例を示す斜視図、第２図はその
ディスク駆動装置の一例を示す斜視図、第３図は上述の
ディスクカセットをディスク駆動装置に取付けた状態の
一部を示す断面図、第４図は本考案によるインデックス
信号発生装置の一例を示す回路図、第５図はその説明に
供する波形図である。
１０はディスクカセット、１３はディスク、１２はジャ
ケット、２８はブラシレス直流モータ、２９は回転駆動
部材、ＲＧは基準信号発生回路、Ｍは可変遅延回路とし
ての単安定マルチバイブレータである。FIG. 1 is a perspective view showing an example of a disk cassette installed in a disk drive device according to the present invention, FIG. 2 is a perspective view showing an example of the disk drive device, and FIG. FIG. 4 is a circuit diagram showing an example of the index signal generating device according to the present invention, and FIG. 5 is a waveform diagram for explaining the index signal generating device. 10 is a disk cassette, 13 is a disk, 12 is a jacket, 28 is a brushless DC motor, 29 is a rotational drive member, RG is a reference signal generation circuit, and M is a monostable multivibrator as a variable delay circuit.
Claims (1)
され、該回転駆動部材が所定範囲内の角位置関係を以っ
てブラシレス直流モータに取り付けられて成るディスク
駆動装置において、上記モータの回転に伴って発生する
周波数信号と上記モータを駆動する駆動信号とを基にし
て上記ディスクの一回転ごとに発生する基準信号を形成
する基準信号形成回路と、該基準信号形成回路よりの基
準信号が供給されて上記ディスク上の所定角位置に対応
したインデックス信号を発生する可変遅延回路と有して
成るディスク駆動装置の、インデックス信号発生装置。In a disk drive device in which a disk is attached to a rotational drive member with a predetermined angular positional relationship, and the rotational drive member is attached to a brushless DC motor with an angular positional relationship within a predetermined range, the rotation of the motor is a reference signal forming circuit that forms a reference signal that is generated for each rotation of the disk based on a frequency signal generated in accordance with the rotation of the motor and a drive signal that drives the motor; An index signal generating device for a disk drive, comprising a variable delay circuit that is supplied with a variable delay circuit to generate an index signal corresponding to a predetermined angular position on the disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18962581U JPS5894170U (en) | 1981-12-18 | 1981-12-18 | Index signal generator for disk drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18962581U JPS5894170U (en) | 1981-12-18 | 1981-12-18 | Index signal generator for disk drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5894170U true JPS5894170U (en) | 1983-06-25 |
Family
ID=30103461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18962581U Pending JPS5894170U (en) | 1981-12-18 | 1981-12-18 | Index signal generator for disk drive device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5894170U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0196865A (en) * | 1987-10-02 | 1989-04-14 | Internatl Business Mach Corp <Ibm> | Disk device |
-
1981
- 1981-12-18 JP JP18962581U patent/JPS5894170U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0196865A (en) * | 1987-10-02 | 1989-04-14 | Internatl Business Mach Corp <Ibm> | Disk device |
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