JPH01102792U - - Google Patents
Info
- Publication number
- JPH01102792U JPH01102792U JP19671287U JP19671287U JPH01102792U JP H01102792 U JPH01102792 U JP H01102792U JP 19671287 U JP19671287 U JP 19671287U JP 19671287 U JP19671287 U JP 19671287U JP H01102792 U JPH01102792 U JP H01102792U
- Authority
- JP
- Japan
- Prior art keywords
- person
- absence
- sensor detects
- sensor
- signal generator
- 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
- Burglar Alarm Systems (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Geophysics And Detection Of Objects (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19671287U JPH01102792U (no) | 1987-12-25 | 1987-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19671287U JPH01102792U (no) | 1987-12-25 | 1987-12-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01102792U true JPH01102792U (no) | 1989-07-11 |
Family
ID=31487309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19671287U Pending JPH01102792U (no) | 1987-12-25 | 1987-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01102792U (no) |
-
1987
- 1987-12-25 JP JP19671287U patent/JPH01102792U/ja active Pending