JPS5765025A - Receiver for traffic informatin - Google Patents

Receiver for traffic informatin

Info

Publication number
JPS5765025A
JPS5765025A JP14083180A JP14083180A JPS5765025A JP S5765025 A JPS5765025 A JP S5765025A JP 14083180 A JP14083180 A JP 14083180A JP 14083180 A JP14083180 A JP 14083180A JP S5765025 A JPS5765025 A JP S5765025A
Authority
JP
Japan
Prior art keywords
signal
detector
output
traffic information
traffic
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
JP14083180A
Other languages
Japanese (ja)
Inventor
Yasuo Kawakami
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic 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 Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP14083180A priority Critical patent/JPS5765025A/en
Publication of JPS5765025A publication Critical patent/JPS5765025A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/091—Traffic information broadcasting
    • G08G1/094—Hardware aspects; Signal processing or signal properties, e.g. frequency bands

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE:To interrupt traffic transmission signal output and area discrimination in response to a control signal and to make the operation of reception stable, by AM-detecting the area discriminating signal and the traffic information transmitting signal and producing the control signal when the detected output is a prescribed level or more. CONSTITUTION:A traffic information station discrimination signal SK including an area discriminating signal BK from an FM detector and a traffic information transmission signal DK are in AM-detection at an AM detector 1, and the signals BK and DK in AM detection are extracted at a BK signal filter 2 and a DK signal filter 3, respectively, and the output of the filters 2, 3 is applied to gates 8, 9. The signals BK and DK AM-detected at the discriminator 6 are compared with a specified threshold value, the waveform more than the threshold value is converted into a DC level at a smoothing device 7, the DC level controls the gates 8, 9, the detected output from a BK signal detector 4 and a DK signal detector 5 is interrupted and the receptive operation of the signal SK is made stable.
JP14083180A 1980-10-08 1980-10-08 Receiver for traffic informatin Pending JPS5765025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14083180A JPS5765025A (en) 1980-10-08 1980-10-08 Receiver for traffic informatin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14083180A JPS5765025A (en) 1980-10-08 1980-10-08 Receiver for traffic informatin

Publications (1)

Publication Number Publication Date
JPS5765025A true JPS5765025A (en) 1982-04-20

Family

ID=15277727

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14083180A Pending JPS5765025A (en) 1980-10-08 1980-10-08 Receiver for traffic informatin

Country Status (1)

Country Link
JP (1) JPS5765025A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128695A (en) * 1983-01-12 1984-07-24 富士通テン株式会社 Traffic information transmitting/receiving system
JPS60150837U (en) * 1984-03-15 1985-10-07 三洋電機株式会社 radio receiver
US4561115A (en) * 1984-03-08 1985-12-24 Itt Industries, Inc. Decoder for traffic information regional tone signals
US4633517A (en) * 1984-06-01 1986-12-30 Deutsche Itt Industries Gmbh Circuit for decoding traffic information message tone signals

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128695A (en) * 1983-01-12 1984-07-24 富士通テン株式会社 Traffic information transmitting/receiving system
US4561115A (en) * 1984-03-08 1985-12-24 Itt Industries, Inc. Decoder for traffic information regional tone signals
JPS60150837U (en) * 1984-03-15 1985-10-07 三洋電機株式会社 radio receiver
US4633517A (en) * 1984-06-01 1986-12-30 Deutsche Itt Industries Gmbh Circuit for decoding traffic information message tone signals

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