JPS61112285U - - Google Patents
Info
- Publication number
- JPS61112285U JPS61112285U JP20204284U JP20204284U JPS61112285U JP S61112285 U JPS61112285 U JP S61112285U JP 20204284 U JP20204284 U JP 20204284U JP 20204284 U JP20204284 U JP 20204284U JP S61112285 U JPS61112285 U JP S61112285U
- Authority
- JP
- Japan
- Prior art keywords
- light
- level
- threshold level
- receiving circuit
- received
- 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
- 238000001514 detection method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20204284U JPS61112285U (Direct) | 1984-12-26 | 1984-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20204284U JPS61112285U (Direct) | 1984-12-26 | 1984-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61112285U true JPS61112285U (Direct) | 1986-07-16 |
Family
ID=30764394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20204284U Pending JPS61112285U (Direct) | 1984-12-26 | 1984-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61112285U (Direct) |
-
1984
- 1984-12-26 JP JP20204284U patent/JPS61112285U/ja active Pending
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