JPS57203344A - Circuit controlling method of inductive radio - Google Patents

Circuit controlling method of inductive radio

Info

Publication number
JPS57203344A
JPS57203344A JP56088063A JP8806381A JPS57203344A JP S57203344 A JPS57203344 A JP S57203344A JP 56088063 A JP56088063 A JP 56088063A JP 8806381 A JP8806381 A JP 8806381A JP S57203344 A JPS57203344 A JP S57203344A
Authority
JP
Japan
Prior art keywords
idle
travelling
wave
tone signal
ground station
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
JP56088063A
Other languages
Japanese (ja)
Other versions
JPS6145417B2 (en
Inventor
Kenzo Urabe
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 JP56088063A priority Critical patent/JPS57203344A/en
Publication of JPS57203344A publication Critical patent/JPS57203344A/en
Publication of JPS6145417B2 publication Critical patent/JPS6145417B2/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 or capacitive transmission systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

PURPOSE:To realize an effective operation of an inductive radio circuit, by transmitting the tone signal showing the idle state of the carrier waves allotted to all travelling objects from a ground state and receiving the tone signal at the travelling object to then transmit the signal by means of an idle carrier wave. CONSTITUTION:The using carrier waves f1 and f2/f3 are allotted to a ground station and all travelling objects respectively. The ground station feeds the output of the wave f1 given from an oscillating part 7 or 8 of the tone signal showing an idle circuit of the wave f2 or f3 to a receiving part 12 of the travelling object via a distributor 4, an inductive line 5 and a receiving antenna 14. Thus the travelling object shows the idle state of the circuit of the waves f2 and f3 respectively according to the presence or absence of the tone signal. Then the available frequency is informed, and at the same time a transmission TX is carried out to the ground station by means of an idle circut such as the wave f2 if usable. As a result, a two-way communication is possible between the ground station and the travelling object. The queuing state is secured in case no idle circuit is available.
JP56088063A 1981-06-10 1981-06-10 Circuit controlling method of inductive radio Granted JPS57203344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56088063A JPS57203344A (en) 1981-06-10 1981-06-10 Circuit controlling method of inductive radio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56088063A JPS57203344A (en) 1981-06-10 1981-06-10 Circuit controlling method of inductive radio

Publications (2)

Publication Number Publication Date
JPS57203344A true JPS57203344A (en) 1982-12-13
JPS6145417B2 JPS6145417B2 (en) 1986-10-08

Family

ID=13932385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56088063A Granted JPS57203344A (en) 1981-06-10 1981-06-10 Circuit controlling method of inductive radio

Country Status (1)

Country Link
JP (1) JPS57203344A (en)

Also Published As

Publication number Publication date
JPS6145417B2 (en) 1986-10-08

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