JPH01158989U - - Google Patents
Info
- Publication number
- JPH01158989U JPH01158989U JP5350588U JP5350588U JPH01158989U JP H01158989 U JPH01158989 U JP H01158989U JP 5350588 U JP5350588 U JP 5350588U JP 5350588 U JP5350588 U JP 5350588U JP H01158989 U JPH01158989 U JP H01158989U
- Authority
- JP
- Japan
- Prior art keywords
- train detection
- voltage
- circuit
- oscillation circuit
- generates
- 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.)
- Granted
Links
- 230000010355 oscillation Effects 0.000 claims 4
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5350588U JPH0522869Y2 (th) | 1988-04-22 | 1988-04-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5350588U JPH0522869Y2 (th) | 1988-04-22 | 1988-04-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01158989U true JPH01158989U (th) | 1989-11-02 |
| JPH0522869Y2 JPH0522869Y2 (th) | 1993-06-11 |
Family
ID=31279478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5350588U Expired - Lifetime JPH0522869Y2 (th) | 1988-04-22 | 1988-04-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0522869Y2 (th) |
-
1988
- 1988-04-22 JP JP5350588U patent/JPH0522869Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0522869Y2 (th) | 1993-06-11 |