JPS57112146A - Interruption system for mobile communication - Google Patents

Interruption system for mobile communication

Info

Publication number
JPS57112146A
JPS57112146A JP55188225A JP18822580A JPS57112146A JP S57112146 A JPS57112146 A JP S57112146A JP 55188225 A JP55188225 A JP 55188225A JP 18822580 A JP18822580 A JP 18822580A JP S57112146 A JPS57112146 A JP S57112146A
Authority
JP
Japan
Prior art keywords
signal
time
interrupt
station
interruption
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
JP55188225A
Other languages
Japanese (ja)
Inventor
Masayuki Matsukura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55188225A priority Critical patent/JPS57112146A/en
Publication of JPS57112146A publication Critical patent/JPS57112146A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile

Abstract

PURPOSE:To make a sure interruption of no failure possible, by transmitting an interrupt signal in a prescribed time from the transmission end of the on-hook signal in one station to the end of a constant time by the output of a status storage circuit for an interrupt switch and the on-hook signal. CONSTITUTION:When a press switch is turned off in a station FB of transmission, the on-hook signal is transmitted for a time T1. Even when the press switch is turned on in the other-party station MLA by the detection of the on- hook signal, the transmitter is not operated for a time T2, and a transmission confirmation signal is generated for the time T2 to report the transmission stop to the operator. Meanwhile, in a station MLB, when an interrupt switch is operated for requirement of an interruption, it is stored (interruption storing). When the on-hook signal is received under the state of the interrupt stored, the interrupt signal is transmitted after the time T1. Stations FB and MLA receive the interrupt signal to close the communication and start the communication with the station MLB requiring an emergency call.
JP55188225A 1980-12-27 1980-12-27 Interruption system for mobile communication Pending JPS57112146A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55188225A JPS57112146A (en) 1980-12-27 1980-12-27 Interruption system for mobile communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55188225A JPS57112146A (en) 1980-12-27 1980-12-27 Interruption system for mobile communication

Publications (1)

Publication Number Publication Date
JPS57112146A true JPS57112146A (en) 1982-07-13

Family

ID=16219959

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55188225A Pending JPS57112146A (en) 1980-12-27 1980-12-27 Interruption system for mobile communication

Country Status (1)

Country Link
JP (1) JPS57112146A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6230426A (en) * 1985-08-01 1987-02-09 Nec Corp Radio communication equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6230426A (en) * 1985-08-01 1987-02-09 Nec Corp Radio communication equipment

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