JPS57208737A - Radio zone switching circuit - Google Patents

Radio zone switching circuit

Info

Publication number
JPS57208737A
JPS57208737A JP56093917A JP9391781A JPS57208737A JP S57208737 A JPS57208737 A JP S57208737A JP 56093917 A JP56093917 A JP 56093917A JP 9391781 A JP9391781 A JP 9391781A JP S57208737 A JPS57208737 A JP S57208737A
Authority
JP
Japan
Prior art keywords
zone
radio
station
sub
mobile body
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
JP56093917A
Other languages
Japanese (ja)
Inventor
Yasuo Murazumi
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP56093917A priority Critical patent/JPS57208737A/en
Publication of JPS57208737A publication Critical patent/JPS57208737A/en
Pending legal-status Critical Current

Links

Classifications

    • H04B5/28—

Abstract

PURPOSE:To eliminate sections of a weak electric field around a zone boundary and to attain sure zone switching, by providing two radio sub-stations in the vicinity of the zone boundary, in the communication with a mobile body by means of radio stations located on lines. CONSTITUTION:Radio sub-stations 3 and 4 having leakage coaxial cables LCXA and LCXB are provided near a zone boundary PC. When a mobile body MB keeping the communication with a radio station 2 approaches the LCXB, the ratio sub-station 4 detects the approach with a receiver RX, operates a transmitter start circuit 5, transmits an audio signal and a zone discriminating signal fb of the radio station 2, and the audio signal and a zone discriminating signal fa of the radio station 1 are transmitted from the radio sub-station 3. The mobile body MB receives the zone discriminating signal fa for zone switching.
JP56093917A 1981-06-19 1981-06-19 Radio zone switching circuit Pending JPS57208737A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56093917A JPS57208737A (en) 1981-06-19 1981-06-19 Radio zone switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56093917A JPS57208737A (en) 1981-06-19 1981-06-19 Radio zone switching circuit

Publications (1)

Publication Number Publication Date
JPS57208737A true JPS57208737A (en) 1982-12-21

Family

ID=14095812

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56093917A Pending JPS57208737A (en) 1981-06-19 1981-06-19 Radio zone switching circuit

Country Status (1)

Country Link
JP (1) JPS57208737A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61162151U (en) * 1984-11-15 1986-10-07

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61162151U (en) * 1984-11-15 1986-10-07

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