JPS55114047A - Automatic channel switching system of two-channel switching radio communication system - Google Patents

Automatic channel switching system of two-channel switching radio communication system

Info

Publication number
JPS55114047A
JPS55114047A JP1976179A JP1976179A JPS55114047A JP S55114047 A JPS55114047 A JP S55114047A JP 1976179 A JP1976179 A JP 1976179A JP 1976179 A JP1976179 A JP 1976179A JP S55114047 A JPS55114047 A JP S55114047A
Authority
JP
Japan
Prior art keywords
signal
channel switching
terminal
calling
stations
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
JP1976179A
Other languages
Japanese (ja)
Inventor
Yukio Saiki
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 JP1976179A priority Critical patent/JPS55114047A/en
Publication of JPS55114047A publication Critical patent/JPS55114047A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W99/00—Subject matter not provided for in other groups of this subclass

Abstract

PURPOSE:To shorten the switching end time by switching channels by an individual call signal, following a channel switching signal, by sensing the channel switching signal only once as the common signal of each terminal station as well as a lock signal. CONSTITUTION:Once applied with channel switching control signal 33 from exchange 17, normal calling signal converter 18 sends a lock signal and normal calling channel switching signal to all terminal radio stations once respectively and then transmits individual calling signals in sequence as many as the number of terminal stations to be switched among the 1st to n-th ones. A terminal station having received this individual calling signal judges a control item by signal receiver circuit 29 and operates channel switching circuit 26 by channel switching control circuit 30 to change normal communication radio equipment 27 over to emergency communication radio equipment 28 automatically. Terminal stations having received no individual calling signal stand by with normal calling radio equipments as they are and a two-channel circuit can be constituted for one sequence of terminal radio stations.
JP1976179A 1979-02-23 1979-02-23 Automatic channel switching system of two-channel switching radio communication system Pending JPS55114047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1976179A JPS55114047A (en) 1979-02-23 1979-02-23 Automatic channel switching system of two-channel switching radio communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1976179A JPS55114047A (en) 1979-02-23 1979-02-23 Automatic channel switching system of two-channel switching radio communication system

Publications (1)

Publication Number Publication Date
JPS55114047A true JPS55114047A (en) 1980-09-03

Family

ID=12008314

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1976179A Pending JPS55114047A (en) 1979-02-23 1979-02-23 Automatic channel switching system of two-channel switching radio communication system

Country Status (1)

Country Link
JP (1) JPS55114047A (en)

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