JPS5273019A - Transmitting and receiving device forultrasonic pulse switch - Google Patents
Transmitting and receiving device forultrasonic pulse switchInfo
- Publication number
- JPS5273019A JPS5273019A JP50149809A JP14980975A JPS5273019A JP S5273019 A JPS5273019 A JP S5273019A JP 50149809 A JP50149809 A JP 50149809A JP 14980975 A JP14980975 A JP 14980975A JP S5273019 A JPS5273019 A JP S5273019A
- Authority
- JP
- Japan
- Prior art keywords
- transmitting
- receiving device
- forultrasonic
- pulse switch
- switch
- 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
Abstract
PURPOSE: To provide a transmitting and receiving device for an ultrasonic pulse switch, in which ultrasonic horns having different directivities are mounted to an automatic door or the like so as to obtain any detecting area.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50149809A JPS5273019A (en) | 1975-12-15 | 1975-12-15 | Transmitting and receiving device forultrasonic pulse switch |
GB51109/76A GB1565258A (en) | 1975-12-15 | 1976-12-08 | Ultrasonic wave horn |
DE2655686A DE2655686C3 (en) | 1975-12-15 | 1976-12-08 | Ultrasonic wave funnel |
US05/749,287 US4104610A (en) | 1975-12-15 | 1976-12-10 | Ultrasonic wave horn |
FR7637689A FR2335904A1 (en) | 1975-12-15 | 1976-12-14 | CORNET FOR ULTRASOUND WAVES TRANSMISSION |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50149809A JPS5273019A (en) | 1975-12-15 | 1975-12-15 | Transmitting and receiving device forultrasonic pulse switch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5273019A true JPS5273019A (en) | 1977-06-18 |
Family
ID=15483173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50149809A Pending JPS5273019A (en) | 1975-12-15 | 1975-12-15 | Transmitting and receiving device forultrasonic pulse switch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5273019A (en) |
-
1975
- 1975-12-15 JP JP50149809A patent/JPS5273019A/en active Pending
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