JPS63189229U - - Google Patents
Info
- Publication number
- JPS63189229U JPS63189229U JP8179887U JP8179887U JPS63189229U JP S63189229 U JPS63189229 U JP S63189229U JP 8179887 U JP8179887 U JP 8179887U JP 8179887 U JP8179887 U JP 8179887U JP S63189229 U JPS63189229 U JP S63189229U
- Authority
- JP
- Japan
- Prior art keywords
- distance
- obstacle
- circuit
- blind
- blind people
- 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
- 238000002604 ultrasonography Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8179887U JPS63189229U (OSRAM) | 1987-05-29 | 1987-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8179887U JPS63189229U (OSRAM) | 1987-05-29 | 1987-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63189229U true JPS63189229U (OSRAM) | 1988-12-05 |
Family
ID=30933862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8179887U Pending JPS63189229U (OSRAM) | 1987-05-29 | 1987-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63189229U (OSRAM) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5458994A (en) * | 1977-10-19 | 1979-05-12 | Sharp Kk | Blind person walking aid |
-
1987
- 1987-05-29 JP JP8179887U patent/JPS63189229U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5458994A (en) * | 1977-10-19 | 1979-05-12 | Sharp Kk | Blind person walking aid |
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