JPH0366060U - - Google Patents
Info
- Publication number
- JPH0366060U JPH0366060U JP12524389U JP12524389U JPH0366060U JP H0366060 U JPH0366060 U JP H0366060U JP 12524389 U JP12524389 U JP 12524389U JP 12524389 U JP12524389 U JP 12524389U JP H0366060 U JPH0366060 U JP H0366060U
- Authority
- JP
- Japan
- Prior art keywords
- write protect
- control circuit
- floppy disk
- sensor output
- control terminal
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Storage Device Security (AREA)
Description
第１図は、本考案によるライトプロテクト端子
を有するフロツピイデイスク駆動装置のブロツク
図である。第２図は、本考案によるフロツピイデ
イスク駆動装置の一実施例を示す回路図である。
１…ライトプロテクトセンサ、２…コントロー
ル端子、３…スイツチ、４…コントロール回路、
５…抵抗、６…リード／ライト回路、７…Ｉ／Ｆ
プロテクト信号、８…ホトトランジスタ（ライト
プロテクトセンサ）。
FIG. 1 is a block diagram of a floppy disk drive device having a write protect terminal according to the present invention. FIG. 2 is a circuit diagram showing an embodiment of a floppy disk drive device according to the present invention. 1...Write protect sensor, 2...Control terminal, 3...Switch, 4...Control circuit,
5...Resistance, 6...Read/Write circuit, 7...I/F
Protect signal, 8... Phototransistor (write protect sensor).
Claims (1)
前記制御回路とライトプロテクトセンサ出力とを
接続するためのコントロール端子を有し、前記コ
ントロール端子にスイツチを設けることにより、
前記制御回路とライトプロテクトセンサ出力とを
接続可能とし、前記スイツチをオンして前記制御
回路とライトプロテクトセンサ出力とを接続する
ことにより、フロツピイデイスクへの書込みを禁
止するプロテクト状態を外部から変化させること
ができるように構成したフロツピイデイスク駆動
装置。 (2) パーソナルコンピユータに適用したことを
特徴とする実用新案登録請求の範囲第１項記載の
ライトプロテクトコントロール端子を有するフロ
ツピイデイスク駆動装置。[Scope of utility model registration claims] (1) A write protect sensor, a control circuit,
By having a control terminal for connecting the control circuit and the write protect sensor output, and providing a switch in the control terminal,
The control circuit and the write protect sensor output can be connected, and by turning on the switch and connecting the control circuit and the write protect sensor output, the protect state that prohibits writing to the floppy disk can be set from the outside. A floppy disk drive device configured so that it can be changed. (2) A floppy disk drive device having a write protect control terminal according to claim 1, which is applied to a personal computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12524389U JPH0366060U (en) | 1989-10-25 | 1989-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12524389U JPH0366060U (en) | 1989-10-25 | 1989-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0366060U true JPH0366060U (en) | 1991-06-27 |
Family
ID=31673126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12524389U Pending JPH0366060U (en) | 1989-10-25 | 1989-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0366060U (en) |
-
1989
- 1989-10-25 JP JP12524389U patent/JPH0366060U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0366060U (en) | ||
| JPS581994U (en) | keyboard instrument | |
| JPS60160641U (en) | touch switch device | |
| JPS62169831U (en) | ||
| JPS59127325U (en) | Loudness control circuit | |
| JPS60187937U (en) | reset circuit | |
| JPS6044045U (en) | data recording device | |
| JPS6120454U (en) | Intermittent wiper control device | |
| JPS6372818U (en) | ||
| JPS6114096U (en) | response picture book | |
| JPS62188826U (en) | ||
| JPS5961454U (en) | timer control circuit | |
| JPS5847937U (en) | Operation key detection device | |
| JPS607256U (en) | Driver replacement detection device | |
| JPS6138694U (en) | music information input device | |
| JPH0268396U (en) | ||
| JPS58150194U (en) | Sensor information reading circuit | |
| JPS59140449U (en) | Ventilator drive device | |
| JPS59142830U (en) | Power supply initialization signal generation circuit | |
| JPS6137470U (en) | Starter motor reactivation prevention device | |
| JPS60129787U (en) | home controller | |
| JPS597547U (en) | Relay drive circuit | |
| JPS6128725U (en) | Reclaimer control device | |
| JPH0384902U (en) | ||
| JPH0290539U (en) |