JPH0523001Y2 - - Google Patents
Info
- Publication number
- JPH0523001Y2 JPH0523001Y2 JP1988136136U JP13613688U JPH0523001Y2 JP H0523001 Y2 JPH0523001 Y2 JP H0523001Y2 JP 1988136136 U JP1988136136 U JP 1988136136U JP 13613688 U JP13613688 U JP 13613688U JP H0523001 Y2 JPH0523001 Y2 JP H0523001Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- buzzer
- receiving device
- gate
- 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 - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 12
- 230000010355 oscillation Effects 0.000 description 12
- 230000001771 impaired effect Effects 0.000 description 11
- 239000003990 capacitor Substances 0.000 description 9
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Landscapes
- Mobile Radio Communication Systems (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988136136U JPH0523001Y2 (en]) | 1988-10-20 | 1988-10-20 | |
| EP89101343A EP0326129B1 (en) | 1988-01-27 | 1989-01-26 | Guiding device for visually handicapped person |
| ES198989101343T ES2035962T3 (es) | 1988-01-27 | 1989-01-26 | Dispositivo de guia para personas con deficiencia visual. |
| DE8989101343T DE68903644T2 (de) | 1988-01-27 | 1989-01-26 | Fuehrungseinrichtung fuer sehbehinderte personen. |
| US07/541,180 US5032836A (en) | 1988-01-27 | 1990-06-18 | Guiding device for visually handicapped person |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988136136U JPH0523001Y2 (en]) | 1988-10-20 | 1988-10-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0257639U JPH0257639U (en]) | 1990-04-25 |
| JPH0523001Y2 true JPH0523001Y2 (en]) | 1993-06-14 |
Family
ID=31396363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988136136U Expired - Lifetime JPH0523001Y2 (en]) | 1988-01-27 | 1988-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0523001Y2 (en]) |
-
1988
- 1988-10-20 JP JP1988136136U patent/JPH0523001Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0257639U (en]) | 1990-04-25 |
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