JPS63191468U - - Google Patents
Info
- Publication number
- JPS63191468U JPS63191468U JP7847287U JP7847287U JPS63191468U JP S63191468 U JPS63191468 U JP S63191468U JP 7847287 U JP7847287 U JP 7847287U JP 7847287 U JP7847287 U JP 7847287U JP S63191468 U JPS63191468 U JP S63191468U
- Authority
- JP
- Japan
- Prior art keywords
- optical reference
- reference pattern
- signal
- floppy disk
- light source
- 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
- 230000003287 optical effect Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 10
Landscapes
- Magnetic Record Carriers (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
Description
第１図は本考案の光学信号検出装置の実施例を
示すブロツク図、第２図はその動作の説明図、第
３図はその各部の信号波形図、第４図は本考案の
装置の特定トラツク検出動作の説明図、第５図は
その場合の各部の信号波形図、第６図は本考案の
装置の別の実施例を示すブロツク図、第７図は本
考案の装置のさらに別の実施例を示す説明図、第
８図は本考案の実施に適するフロツピーデイスク
装置の要部斜視図、第９図はフロツピーデイスク
の部分断面図、第１０図は第８図の装置の側面図
、第１１図は従来の装置の受光器の構成を示すブ
ロツク図、第１２図はその各部の信号波形図、第
１３図は従来の装置の特定トラツクの検出動作の
説明図である。
２……フロツピーデイスク、５……光源、６，
２０……受光器、１０……光学基準パタン、２３
……光学基準パタンの検出用信号、２６……サー
ボ用信号、Ａ１〜Ａ４，Ｂ１〜Ｂ４……帯状光検
出器。
Fig. 1 is a block diagram showing an embodiment of the optical signal detection device of the present invention, Fig. 2 is an explanatory diagram of its operation, Fig. 3 is a signal waveform diagram of each part thereof, and Fig. 4 is a specification of the device of the present invention. An explanatory diagram of the track detection operation, FIG. 5 is a signal waveform diagram of each part in that case, FIG. 6 is a block diagram showing another embodiment of the device of the present invention, and FIG. 7 is a diagram of still another embodiment of the device of the present invention. 8 is a perspective view of a main part of a floppy disk device suitable for carrying out the present invention, FIG. 9 is a partial sectional view of the floppy disk, and FIG. 10 is a side view of the device shown in FIG. 8. 11 is a block diagram showing the configuration of a light receiver of a conventional device, FIG. 12 is a signal waveform diagram of each part thereof, and FIG. 13 is an explanatory diagram of a specific track detection operation of the conventional device. 2... Floppy disk, 5... Light source, 6,
20... Light receiver, 10... Optical reference pattern, 23
... Signal for detection of optical reference pattern, 26 ... Signal for servo, A1-A4, B1-B4 ... Band-shaped photodetector.
Claims (1)
ロツピーデイスクと、このフロツピーデイスクを
照射する光源と、前記フロツピーデイスクを透過
した前記光源による光を受光する受光器と有し、
この受光器には、前記光源により投影された前記
光学基準パタンの像を光電変換する複数本の帯状
光検出器が設けられ、これらの帯状光検出器は、
その長手方向をそれぞれ前記光学基準パタンに平
行に向けて配列され、これらの帯状光検出器の検
出信号が並列接続されてサーボ用信号とされ、か
つそのうちの少なくとも一つの帯状光検出器の検
出信号が単独で前記光学基準パタンのうちの特定
の光学基準パタンの検出用信号とされていること
を特徴とする光学信号検出装置。 a floppy disk having an optical reference pattern drawn concentrically, a light source that illuminates the floppy disk, and a light receiver that receives the light from the light source that has passed through the floppy disk;
This light receiver is provided with a plurality of strip-shaped photodetectors that photoelectrically convert the image of the optical reference pattern projected by the light source, and these strip-shaped photodetectors
The detection signals of these band-shaped photodetectors are arranged in parallel with each other with their longitudinal directions parallel to the optical reference pattern, and the detection signals of at least one of the band-shaped photodetectors are connected in parallel to form a servo signal. An optical signal detection device characterized in that the signal is used alone as a signal for detecting a specific optical reference pattern among the optical reference patterns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7847287U JPS63191468U (en) | 1987-05-25 | 1987-05-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7847287U JPS63191468U (en) | 1987-05-25 | 1987-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63191468U true JPS63191468U (en) | 1988-12-09 |
Family
ID=30927449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7847287U Pending JPS63191468U (en) | 1987-05-25 | 1987-05-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63191468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01155580A (en) * | 1987-10-15 | 1989-06-19 | Polaroid Corp | Data memory device |
-
1987
- 1987-05-25 JP JP7847287U patent/JPS63191468U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01155580A (en) * | 1987-10-15 | 1989-06-19 | Polaroid Corp | Data memory device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62121523U (en) | ||
| JPS63191468U (en) | ||
| JPS6244243U (en) | ||
| JPS61168428U (en) | ||
| JPS5865506U (en) | Optical spot position detection circuit | |
| JPS6250606U (en) | ||
| JPS632145U (en) | ||
| JPS58148610U (en) | position detection device | |
| JPS625207U (en) | ||
| JPS6320050U (en) | ||
| JPS6262980U (en) | ||
| JPS5839774U (en) | Record disc track interval detection device | |
| JPS63161454U (en) | ||
| JPS59126437U (en) | photoelectric switch | |
| JPH0172610U (en) | ||
| JPS62177055U (en) | ||
| JPH0433166U (en) | ||
| JPS63188772U (en) | ||
| JPS61199608U (en) | ||
| JPH0157703U (en) | ||
| JPH027512U (en) | ||
| JPS61195520U (en) | ||
| JPS61122516U (en) | ||
| JPS63149552U (en) | ||
| JPS5810017U (en) | Zero point detection device for photoelectric encoder |