JPS5711546A - Data transmission system by inductive radio - Google Patents

Data transmission system by inductive radio

Info

Publication number
JPS5711546A
JPS5711546A JP8587180A JP8587180A JPS5711546A JP S5711546 A JPS5711546 A JP S5711546A JP 8587180 A JP8587180 A JP 8587180A JP 8587180 A JP8587180 A JP 8587180A JP S5711546 A JPS5711546 A JP S5711546A
Authority
JP
Japan
Prior art keywords
communication
carrier frequency
increase
mobile body
circuit
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
JP8587180A
Other languages
Japanese (ja)
Other versions
JPS618620B2 (en
Inventor
Kenzo Urabe
Kenichi Shimizu
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 JP8587180A priority Critical patent/JPS5711546A/en
Publication of JPS5711546A publication Critical patent/JPS5711546A/en
Publication of JPS618620B2 publication Critical patent/JPS618620B2/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 increase the line efficiency, by assigning the 1st carrier frequency to an earth station and the 2nd and 3rd carrier frequency to a mobile body and using the 3rd frequency to a detour circuit. CONSTITUTION:An earth station couples a communication signal via a microphone 5, telephone receiver 6, transmitter 8, and receivers 9, 10 and a control data via a communication controller 1 and digital code processing circuit 2 to an inductive line 11 from a distributor 12. A mobile side consists of a transmission antenna 22, receiving antenna 24, transmitter 21, receiver 23, communication controller 13, digital code processing circuit 14, microphone 17, and telephone receiver 18. The mobile body receives a control signal from the 1st carrier frequency f1 and makes the returning and calling of the control signal with the 2nd carrier frequency f2, and when communication request from other mobile body is present, the communication is detoured to the 3rd carrier frequency f3 to assure the continuity of communication, allowing to increase the efficiency of communication without circuit increase.
JP8587180A 1980-06-26 1980-06-26 Data transmission system by inductive radio Granted JPS5711546A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8587180A JPS5711546A (en) 1980-06-26 1980-06-26 Data transmission system by inductive radio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8587180A JPS5711546A (en) 1980-06-26 1980-06-26 Data transmission system by inductive radio

Publications (2)

Publication Number Publication Date
JPS5711546A true JPS5711546A (en) 1982-01-21
JPS618620B2 JPS618620B2 (en) 1986-03-15

Family

ID=13870955

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8587180A Granted JPS5711546A (en) 1980-06-26 1980-06-26 Data transmission system by inductive radio

Country Status (1)

Country Link
JP (1) JPS5711546A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5084864A (en) * 1990-05-14 1992-01-28 The Boeing Company Broadband, inductively coupled, duplex, rf transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5084864A (en) * 1990-05-14 1992-01-28 The Boeing Company Broadband, inductively coupled, duplex, rf transmission system

Also Published As

Publication number Publication date
JPS618620B2 (en) 1986-03-15

Similar Documents

Publication Publication Date Title
GB2282270B (en) Switch circuit and method therefor
GB1519328A (en) Diversity system
GB1502666A (en) Satelite telephone systems
GB1412386A (en) Portable telephone system having a battery saver feature
GB1418447A (en) Switching system
JPS5711546A (en) Data transmission system by inductive radio
ES457218A1 (en) Duplex mode radio telephone system - employs variable switching delay dependent on signal quality for retransmission of signal
GB1324650A (en) Radio transmitter receivers
ATE192001T1 (en) TRANSMITTER DEVICES FOR TRANSMITTING RADIO SIGNALS OF A PARTICULAR TRANSMISSION FREQUENCY ACCORDING TO A SPECIFIED TRANSMISSION TIME PROTOCOL
JPS5665538A (en) Control signal relay system for mobile communication
GB1078296A (en) Improvements in or relating to return speech paging systems
JPS5773539A (en) Mobile radio communication system
JPS5791067A (en) Data transmission and reception device
JPS5245813A (en) Wireless telephone system
JPS5627545A (en) Cordless telephone set
JPS5799043A (en) Mobile radio communication system
JPS5294712A (en) Receiver
JPS57141146A (en) Radio repeating device
SE8800143D0 (en) ANTI-DIVERSITY FILTER EFFECT
JPS5658337A (en) Portable telephone system
JPS6480134A (en) Transmission right control system
JPS5787633A (en) Automatic relay system
JPS5758423A (en) Satellite communication device
JPS57192146A (en) Radio zone switching system
JPS5428502A (en) Radio telephone system between mobile station and base station