JPS5556736A - Moving object communication device - Google Patents

Moving object communication device

Info

Publication number
JPS5556736A
JPS5556736A JP13014378A JP13014378A JPS5556736A JP S5556736 A JPS5556736 A JP S5556736A JP 13014378 A JP13014378 A JP 13014378A JP 13014378 A JP13014378 A JP 13014378A JP S5556736 A JPS5556736 A JP S5556736A
Authority
JP
Japan
Prior art keywords
information
wave
coil
frequency
synchronized
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.)
Granted
Application number
JP13014378A
Other languages
Japanese (ja)
Other versions
JPS5734693B2 (en
Inventor
Takao Kiogawa
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 Electric Corp
Original Assignee
Kokusai 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 Kokusai Electric Corp filed Critical Kokusai Electric Corp
Priority to JP13014378A priority Critical patent/JPS5556736A/en
Publication of JPS5556736A publication Critical patent/JPS5556736A/en
Publication of JPS5734693B2 publication Critical patent/JPS5734693B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive loop type

Abstract

PURPOSE:To ensure tramsmission and reception of a large amount of information in a short time at the high-speed running time by sending back the signal of frequency f sent from the information reception side in the form of the f/2 frequency signal wave which received the 4-phase deviation modulation at the information transmission side and with every dibit of the information signal. CONSTITUTION:Oscillator 5 of specific frequency f is provided at the information reception side, along with installation of coupling unit 6 consisting of coil L1 synchronized with output frequency f and coil L2 synchronized with frequency f/2. At the information transmission side, the coupling unit comprising coil L3 synchronized with the f wave and coil L4 synchronized with the f/2 wave is installed at the place near the area where the coupling loss becomes maximum to coils L1 and L2. Then information signal transmitter 25 supplies the output converted the output f wave of coil L3 into the f/2 wave of the 4-phase deviation modulation by the control signal sent from code transmitter 18 to coil L4, and sends back the f/2 wave obtained by giving the 4-phase deviation modulation to the f wave sent from the information reception side with every dibit of the information signal and at the information transmission side. As a result, a large amount of information can be transmitted and received in a short time and at the high-speed running time.
JP13014378A 1978-10-23 1978-10-23 Moving object communication device Granted JPS5556736A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13014378A JPS5556736A (en) 1978-10-23 1978-10-23 Moving object communication device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13014378A JPS5556736A (en) 1978-10-23 1978-10-23 Moving object communication device

Publications (2)

Publication Number Publication Date
JPS5556736A true JPS5556736A (en) 1980-04-25
JPS5734693B2 JPS5734693B2 (en) 1982-07-24

Family

ID=15026990

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13014378A Granted JPS5556736A (en) 1978-10-23 1978-10-23 Moving object communication device

Country Status (1)

Country Link
JP (1) JPS5556736A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018188045A (en) * 2017-05-10 2018-11-29 株式会社京三製作所 Ground unit
JP2019199235A (en) * 2018-05-18 2019-11-21 株式会社京三製作所 Ground element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018188045A (en) * 2017-05-10 2018-11-29 株式会社京三製作所 Ground unit
JP2019199235A (en) * 2018-05-18 2019-11-21 株式会社京三製作所 Ground element

Also Published As

Publication number Publication date
JPS5734693B2 (en) 1982-07-24

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