JPS6336477B2 - - Google Patents
Info
- Publication number
- JPS6336477B2 JPS6336477B2 JP56141749A JP14174981A JPS6336477B2 JP S6336477 B2 JPS6336477 B2 JP S6336477B2 JP 56141749 A JP56141749 A JP 56141749A JP 14174981 A JP14174981 A JP 14174981A JP S6336477 B2 JPS6336477 B2 JP S6336477B2
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- sound
- distance
- band noise
- output
- 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
- 238000000034 method Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 6
- 210000005069 ears Anatomy 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001953 sensory effect Effects 0.000 description 2
- 238000005311 autocorrelation function Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Rehabilitation Tools (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56141749A JPS5844370A (ja) | 1981-09-10 | 1981-09-10 | 盲人用歩行補助のための超音波バンドノイズレ−ダによる距離認識方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56141749A JPS5844370A (ja) | 1981-09-10 | 1981-09-10 | 盲人用歩行補助のための超音波バンドノイズレ−ダによる距離認識方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5844370A JPS5844370A (ja) | 1983-03-15 |
| JPS6336477B2 true JPS6336477B2 (OSRAM) | 1988-07-20 |
Family
ID=15299298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56141749A Granted JPS5844370A (ja) | 1981-09-10 | 1981-09-10 | 盲人用歩行補助のための超音波バンドノイズレ−ダによる距離認識方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5844370A (OSRAM) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62285087A (ja) * | 1986-06-03 | 1987-12-10 | Yoshio Nakamura | 盲人用超音波探知器 |
| US8120521B2 (en) * | 2003-10-28 | 2012-02-21 | Preco Electronics, Inc. | Radar echolocater with audio output |
-
1981
- 1981-09-10 JP JP56141749A patent/JPS5844370A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5844370A (ja) | 1983-03-15 |
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