JPS5222500A - Traffic signal transmission system for blind people - Google Patents
Traffic signal transmission system for blind peopleInfo
- Publication number
- JPS5222500A JPS5222500A JP9810775A JP9810775A JPS5222500A JP S5222500 A JPS5222500 A JP S5222500A JP 9810775 A JP9810775 A JP 9810775A JP 9810775 A JP9810775 A JP 9810775A JP S5222500 A JPS5222500 A JP S5222500A
- Authority
- JP
- Japan
- Prior art keywords
- signal transmission
- transmission system
- traffic signal
- blind people
- sounds
- 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
Landscapes
- Traffic Control Systems (AREA)
Abstract
PURPOSE: To transmit traffic signals to blind people at intersections by sounds and to limit the spreading of the sounds to unnecessary areas.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9810775A JPS5222500A (en) | 1975-08-14 | 1975-08-14 | Traffic signal transmission system for blind people |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9810775A JPS5222500A (en) | 1975-08-14 | 1975-08-14 | Traffic signal transmission system for blind people |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5222500A true JPS5222500A (en) | 1977-02-19 |
Family
ID=14211092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9810775A Pending JPS5222500A (en) | 1975-08-14 | 1975-08-14 | Traffic signal transmission system for blind people |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5222500A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55101918U (en) * | 1978-12-29 | 1980-07-16 | ||
JPH0363299U (en) * | 1989-07-03 | 1991-06-20 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51139800A (en) * | 1975-05-28 | 1976-12-02 | Nippon Signal Co Ltd:The | Leading device for the blind |
-
1975
- 1975-08-14 JP JP9810775A patent/JPS5222500A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51139800A (en) * | 1975-05-28 | 1976-12-02 | Nippon Signal Co Ltd:The | Leading device for the blind |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55101918U (en) * | 1978-12-29 | 1980-07-16 | ||
JPH0363299U (en) * | 1989-07-03 | 1991-06-20 |
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