JPS54121383A - Traffic information system - Google Patents

Traffic information system

Info

Publication number
JPS54121383A
JPS54121383A JP2913378A JP2913378A JPS54121383A JP S54121383 A JPS54121383 A JP S54121383A JP 2913378 A JP2913378 A JP 2913378A JP 2913378 A JP2913378 A JP 2913378A JP S54121383 A JPS54121383 A JP S54121383A
Authority
JP
Japan
Prior art keywords
traffic information
display unit
audio signal
information
antenna
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
JP2913378A
Other languages
Japanese (ja)
Inventor
Mitsunori Kono
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2913378A priority Critical patent/JPS54121383A/en
Publication of JPS54121383A publication Critical patent/JPS54121383A/en
Pending legal-status Critical Current

Links

Landscapes

  • Traffic Control Systems (AREA)

Abstract

PURPOSE: To recognize instantaneously varying traffic information by users utilizing roads by displaying the information on a display unit.
CONSTITUTION: Sensors 11 to 1n are operated to detect vehicles on a road to transmit detection signals to a central processing unit 2 and to display unit 3 with the processed result. The processed result is also transmitted to a transmitter 4, which thereupon frequency-modulates audio signal of normal broadcasting program given from a studio 5 and radiates it through an antenna 6. The receiver 8 on a vehicle receives the mixture radio wave of the broadcasting program and traffic information from an antenna 7 to allow a band pass filter to separate the audio signal from digital signal of traffic information. The audio signal is detected via a rectifying circuit to be reproduced via a speaker 9. The traffic information is demodulated via a demodulator into a digital signal to a signal processor 10. Stored information is displayed on a display unit 20 sequentially.
COPYRIGHT: (C)1979,JPO&Japio
JP2913378A 1978-03-13 1978-03-13 Traffic information system Pending JPS54121383A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2913378A JPS54121383A (en) 1978-03-13 1978-03-13 Traffic information system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2913378A JPS54121383A (en) 1978-03-13 1978-03-13 Traffic information system

Publications (1)

Publication Number Publication Date
JPS54121383A true JPS54121383A (en) 1979-09-20

Family

ID=12267786

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2913378A Pending JPS54121383A (en) 1978-03-13 1978-03-13 Traffic information system

Country Status (1)

Country Link
JP (1) JPS54121383A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62111536A (en) * 1985-10-16 1987-05-22 ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Wireless traffic information decoder
US5131020A (en) * 1989-12-29 1992-07-14 Smartroutes Systems Limited Partnership Method of and system for providing continually updated traffic or other information to telephonically and other communications-linked customers
US5164904A (en) * 1990-07-26 1992-11-17 Farradyne Systems, Inc. In-vehicle traffic congestion information system
US5173691A (en) * 1990-07-26 1992-12-22 Farradyne Systems, Inc. Data fusion process for an in-vehicle traffic congestion information system
US5182555A (en) * 1990-07-26 1993-01-26 Farradyne Systems, Inc. Cell messaging process for an in-vehicle traffic congestion information system
US5317311A (en) * 1988-11-14 1994-05-31 Martell David K Traffic congestion monitoring system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62111536A (en) * 1985-10-16 1987-05-22 ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Wireless traffic information decoder
US5317311A (en) * 1988-11-14 1994-05-31 Martell David K Traffic congestion monitoring system
US5131020A (en) * 1989-12-29 1992-07-14 Smartroutes Systems Limited Partnership Method of and system for providing continually updated traffic or other information to telephonically and other communications-linked customers
US5164904A (en) * 1990-07-26 1992-11-17 Farradyne Systems, Inc. In-vehicle traffic congestion information system
US5173691A (en) * 1990-07-26 1992-12-22 Farradyne Systems, Inc. Data fusion process for an in-vehicle traffic congestion information system
US5182555A (en) * 1990-07-26 1993-01-26 Farradyne Systems, Inc. Cell messaging process for an in-vehicle traffic congestion information system

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