JPS5222500A - Traffic signal transmission system for blind people - Google Patents

Traffic signal transmission system for blind people

Info

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
Application number
JP9810775A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Ishigooka
Takashi Kugimiya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kokusai Denki Electric Inc
Original Assignee
Kokusai Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kokusai Electric Co Ltd filed Critical Kokusai Electric Co Ltd
Priority to JP9810775A priority Critical patent/JPS5222500A/en
Publication of JPS5222500A publication Critical patent/JPS5222500A/en
Pending legal-status Critical Current

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
JP9810775A 1975-08-14 1975-08-14 Traffic signal transmission system for blind people Pending JPS5222500A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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