JPS63161454U - - Google Patents
Info
- Publication number
- JPS63161454U JPS63161454U JP5358187U JP5358187U JPS63161454U JP S63161454 U JPS63161454 U JP S63161454U JP 5358187 U JP5358187 U JP 5358187U JP 5358187 U JP5358187 U JP 5358187U JP S63161454 U JPS63161454 U JP S63161454U
- Authority
- JP
- Japan
- Prior art keywords
- disk
- pulse signal
- loading
- transmission hole
- detection means
- 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
- 238000001514 detection method Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Description
第１図は本案に係るデイスクサイズ検出装置の
構成を示す側断面図、第２図は本案に係るデイス
クサイズ検出装置の信号検出回路を示すブロツク
図、第３図、第４図は本案に係るデイスクサイズ
検出装置の検出動作を説明する側断面図、第５図
はそのデイスクサイズの検出について説明する波
形図である。
１２……トレイ、２０……透過孔、２１……フ
オトセンサ（光検出手段）、２２……検出回路、
Ｄ……デイスク。
FIG. 1 is a side sectional view showing the configuration of the disk size detection device according to the present invention, FIG. 2 is a block diagram showing the signal detection circuit of the disk size detection device according to the present invention, and FIGS. 3 and 4 are according to the present invention. FIG. 5 is a side sectional view illustrating the detection operation of the disk size detection device, and a waveform diagram illustrating the detection of the disk size. 12...Tray, 20...Transmission hole, 21...Photo sensor (light detection means), 22...Detection circuit,
D...disc.
Claims (1)
るデイスクローデイング用のトレイに、異なる径
を有するデイスクの径に応じた位置に複数の透過
孔をデイスク径方向に間隔をあけて形成し、デイ
スクローデイング径路近傍の前記透過孔の移動経
路上に光検出手段を配設し、前記光検出手段から
出される光の前記透過孔の通過の有無を検出し、
その検出出力に基づいてパルス信号を取り出し、
このパルス信号をカウントすることにより、デイ
スクの有無およびサイズを判別するようにしたこ
とを特徴とするデイスクサイズ検出装置。 A plurality of transparent holes are formed at intervals in the disk radial direction at positions corresponding to the diameters of the disks having different diameters on a disk loading tray that is moved back and forth to the loading position. disposing a light detection means on the movement path of the transmission hole near the loading path, detecting whether or not the light emitted from the light detection means passes through the transmission hole;
A pulse signal is extracted based on the detection output,
A disk size detection device characterized in that the presence or absence of a disk and its size are determined by counting this pulse signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5358187U JPS63161454U (en) | 1987-04-09 | 1987-04-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5358187U JPS63161454U (en) | 1987-04-09 | 1987-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63161454U true JPS63161454U (en) | 1988-10-21 |
Family
ID=30879782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5358187U Pending JPS63161454U (en) | 1987-04-09 | 1987-04-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63161454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02101363U (en) * | 1989-01-26 | 1990-08-13 |
-
1987
- 1987-04-09 JP JP5358187U patent/JPS63161454U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02101363U (en) * | 1989-01-26 | 1990-08-13 |
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