JPS5732843B2 - - Google Patents
Info
- Publication number
- JPS5732843B2 JPS5732843B2 JP14981075A JP14981075A JPS5732843B2 JP S5732843 B2 JPS5732843 B2 JP S5732843B2 JP 14981075 A JP14981075 A JP 14981075A JP 14981075 A JP14981075 A JP 14981075A JP S5732843 B2 JPS5732843 B2 JP S5732843B2
- Authority
- JP
- Japan
- 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.)
- Expired
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
- Burglar Alarm Systems (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Traffic Control Systems (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50149810A JPS5272478A (en) | 1975-12-15 | 1975-12-15 | Supersonic switch |
GB51467/76A GB1568229A (en) | 1975-12-15 | 1976-12-09 | Ultrasonic wave echo-type switch |
US05/749,072 US4131872A (en) | 1975-12-15 | 1976-12-09 | Ultrasonic wave echo-type switch |
DE2656256A DE2656256C3 (de) | 1975-12-15 | 1976-12-11 | Schaltungsanordnung zur Überwachung eines Raumes mit Ultraschall |
FR7637688A FR2335853A1 (fr) | 1975-12-15 | 1976-12-14 | Appareil de detection d'objets par impulsions ultrasonores |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50149810A JPS5272478A (en) | 1975-12-15 | 1975-12-15 | Supersonic switch |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5272478A JPS5272478A (en) | 1977-06-16 |
JPS5732843B2 true JPS5732843B2 (fr) | 1982-07-13 |
Family
ID=15483196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50149810A Granted JPS5272478A (en) | 1975-12-15 | 1975-12-15 | Supersonic switch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5272478A (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5585272A (en) * | 1978-12-22 | 1980-06-27 | Kooa Denshi Kogyo Kk | Body confirming device |
JPS57172623A (en) * | 1981-04-17 | 1982-10-23 | Tokyo Shibaura Electric Co | Automatic electricity-saving device |
JPS58150878A (ja) * | 1982-03-03 | 1983-09-07 | Mitsubishi Electric Corp | 物体検出装置 |
JPS59104581A (ja) * | 1982-12-06 | 1984-06-16 | Mitsui Constr Co Ltd | 地下掘削孔における距離測定方法 |
JPS61139709A (ja) * | 1984-12-12 | 1986-06-27 | Oki Electric Ind Co Ltd | 高さ検出方式 |
JPS6454278A (en) * | 1987-08-25 | 1989-03-01 | Matsushita Electric Works Ltd | Controller for snow melting apparatus |
-
1975
- 1975-12-15 JP JP50149810A patent/JPS5272478A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5272478A (en) | 1977-06-16 |