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JPS5619240A - Automobile radio signal device - Google Patents

Automobile radio signal device

Info

Publication number
JPS5619240A
JPS5619240A JP9545779A JP9545779A JPS5619240A JP S5619240 A JPS5619240 A JP S5619240A JP 9545779 A JP9545779 A JP 9545779A JP 9545779 A JP9545779 A JP 9545779A JP S5619240 A JPS5619240 A JP S5619240A
Authority
JP
Japan
Prior art keywords
signal
optical fiber
noise
led14
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
JP9545779A
Other languages
Japanese (ja)
Inventor
Munehiko Nagano
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 JP9545779A priority Critical patent/JPS5619240A/en
Publication of JPS5619240A publication Critical patent/JPS5619240A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To reduce the deterioration of the information quantity caused by various types of electromagnetic noise, by using the signal transmission line connecting among the antenna, the front end part and the transmitting/receiving part each for the optical fiber transmission line. CONSTITUTION:The electric wave signal supplied from antenna 1 is converted into the intermediate frequency signal at frequency converting amplifier 12 after passing through transmission/reception isolating circuit 11. And the current proportional to the signal voltage is supplied to LED14 by LED driving circuit 13. Then the current signal is converted into the light intensity signal through LED14 and then transmitted to one piece of optical fiber line 15 among optical fiber transmission lines 7. The optical fiber is made of the glass or the transparent synthetic resin and thus an nonelectric conductor. Thus the various types of electric noise sent from the engine part or the like in the main body of an automobile or the electromagnetic noise given from outside is never induced to the optical fiber. As a result, a perfect countermeasure is ensured to the noise by applying the local electromagnetic shielding of the signal frequency band including the power supply to front end 2a and transmitter/receiver 3a each.
JP9545779A 1979-07-24 1979-07-24 Automobile radio signal device Pending JPS5619240A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9545779A JPS5619240A (en) 1979-07-24 1979-07-24 Automobile radio signal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9545779A JPS5619240A (en) 1979-07-24 1979-07-24 Automobile radio signal device

Publications (1)

Publication Number Publication Date
JPS5619240A true JPS5619240A (en) 1981-02-23

Family

ID=14138202

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9545779A Pending JPS5619240A (en) 1979-07-24 1979-07-24 Automobile radio signal device

Country Status (1)

Country Link
JP (1) JPS5619240A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62122600A (en) * 1985-09-03 1987-06-03 アボツト　ラボラトリ−ズ Stabilized cholesterol reagent and measurement of total cholesterol using the same
US4910796A (en) * 1986-09-01 1990-03-20 Harada Kogyo Kabushiki Kaisha Automobile antenna

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51803A (en) * 1974-06-21 1976-01-07 Hitachi Ltd
JPS5341104A (en) * 1976-09-28 1978-04-14 Nec Corp Optical fiber communication system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51803A (en) * 1974-06-21 1976-01-07 Hitachi Ltd
JPS5341104A (en) * 1976-09-28 1978-04-14 Nec Corp Optical fiber communication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62122600A (en) * 1985-09-03 1987-06-03 アボツト　ラボラトリ−ズ Stabilized cholesterol reagent and measurement of total cholesterol using the same
US4910796A (en) * 1986-09-01 1990-03-20 Harada Kogyo Kabushiki Kaisha Automobile antenna

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