JPH0343062U - - Google Patents
Info
- Publication number
- JPH0343062U JPH0343062U JP10420689U JP10420689U JPH0343062U JP H0343062 U JPH0343062 U JP H0343062U JP 10420689 U JP10420689 U JP 10420689U JP 10420689 U JP10420689 U JP 10420689U JP H0343062 U JPH0343062 U JP H0343062U
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- detection section
- microphone
- section
- ultrasonic microphone
- 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 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Burglar Alarm Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10420689U JPH0343062U (de) | 1989-09-05 | 1989-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10420689U JPH0343062U (de) | 1989-09-05 | 1989-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0343062U true JPH0343062U (de) | 1991-04-23 |
Family
ID=31653008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10420689U Pending JPH0343062U (de) | 1989-09-05 | 1989-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0343062U (de) |
-
1989
- 1989-09-05 JP JP10420689U patent/JPH0343062U/ja active Pending