JPS5644229A - Emergency signal transmission system of portable radio set and its device - Google Patents

Emergency signal transmission system of portable radio set and its device

Info

Publication number
JPS5644229A
JPS5644229A JP12151579A JP12151579A JPS5644229A JP S5644229 A JPS5644229 A JP S5644229A JP 12151579 A JP12151579 A JP 12151579A JP 12151579 A JP12151579 A JP 12151579A JP S5644229 A JPS5644229 A JP S5644229A
Authority
JP
Japan
Prior art keywords
transmitter
signal
emergency
emergency signal
tone
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
JP12151579A
Other languages
Japanese (ja)
Other versions
JPS5816813B2 (en
Inventor
Masao Harajiri
Toshikatsu Takimoto
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.)
Fujitsu General Ltd
Gen Co Ltd
Original Assignee
Fujitsu General Ltd
Gen 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 Fujitsu General Ltd, Gen Co Ltd filed Critical Fujitsu General Ltd
Priority to JP54121515A priority Critical patent/JPS5816813B2/en
Publication of JPS5644229A publication Critical patent/JPS5644229A/en
Publication of JPS5816813B2 publication Critical patent/JPS5816813B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/03—Constructional details, e.g. casings, housings
    • H04B1/034—Portable transmitters

Abstract

PURPOSE:To make it possible to use a radio set as a transceiver and an emergency signal transmitter, by making it possible to operate the emergency push-button switch to transmit the emergency signal even under the nontransmission state. CONSTITUTION:Under the nontransmission state, electric power is not supplied from power source 3 to transmitter 5 because mode change-over switch 9 is connected to the contact 11 side. When emergency push-button switch 8 is depressed, a signal is delayed by time constant circuit 13 and is applied to pulse generator 14. Simultaneously, electric power is supplied from power source 3 to transmitter 5. The tone signal set by the tone selector is generated from tone generator 16 by the pulse output signal of generator 14 and is applied to transmitter 5 and is transmitted from antenna 7. At this time, mixer 17 breaks the input from mike 6.
JP54121515A 1979-09-20 1979-09-20 Portable radio emergency signal transmitter Expired JPS5816813B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54121515A JPS5816813B2 (en) 1979-09-20 1979-09-20 Portable radio emergency signal transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54121515A JPS5816813B2 (en) 1979-09-20 1979-09-20 Portable radio emergency signal transmitter

Publications (2)

Publication Number Publication Date
JPS5644229A true JPS5644229A (en) 1981-04-23
JPS5816813B2 JPS5816813B2 (en) 1983-04-02

Family

ID=14813110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54121515A Expired JPS5816813B2 (en) 1979-09-20 1979-09-20 Portable radio emergency signal transmitter

Country Status (1)

Country Link
JP (1) JPS5816813B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5173915U (en) * 1974-12-07 1976-06-10

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5173915U (en) * 1974-12-07 1976-06-10

Also Published As

Publication number Publication date
JPS5816813B2 (en) 1983-04-02

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