JPS633268B2 - - Google Patents
Info
- Publication number
- JPS633268B2 JPS633268B2 JP54047015A JP4701579A JPS633268B2 JP S633268 B2 JPS633268 B2 JP S633268B2 JP 54047015 A JP54047015 A JP 54047015A JP 4701579 A JP4701579 A JP 4701579A JP S633268 B2 JPS633268 B2 JP S633268B2
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- circuit
- wave
- vehicle
- frequency
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52004—Means for monitoring or calibrating
- G01S7/52006—Means for monitoring or calibrating with provision for compensating the effects of temperature
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4701579A JPS55138669A (en) | 1979-04-16 | 1979-04-16 | Inter-vehicle distance measuring apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4701579A JPS55138669A (en) | 1979-04-16 | 1979-04-16 | Inter-vehicle distance measuring apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55138669A JPS55138669A (en) | 1980-10-29 |
JPS633268B2 true JPS633268B2 (en]) | 1988-01-22 |
Family
ID=12763337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4701579A Granted JPS55138669A (en) | 1979-04-16 | 1979-04-16 | Inter-vehicle distance measuring apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55138669A (en]) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0731244B2 (ja) * | 1985-03-25 | 1995-04-10 | 松下電工株式会社 | 超音波式追尾装置 |
JPS6295479A (ja) * | 1985-10-22 | 1987-05-01 | Fuji Electric Co Ltd | 音速補償方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4938257U (en]) * | 1972-07-04 | 1974-04-04 | ||
JPS5248504A (en) * | 1972-09-21 | 1977-04-18 | Nippon Carbon Co Ltd | Material for preventing slip of running wheel |
-
1979
- 1979-04-16 JP JP4701579A patent/JPS55138669A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS55138669A (en) | 1980-10-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees | ||
EXPY | Cancellation because of completion of term |