JPS5448409A - Radiotelephony system - Google Patents

Radiotelephony system

Info

Publication number
JPS5448409A
JPS5448409A JP8370577A JP8370577A JPS5448409A JP S5448409 A JPS5448409 A JP S5448409A JP 8370577 A JP8370577 A JP 8370577A JP 8370577 A JP8370577 A JP 8370577A JP S5448409 A JPS5448409 A JP S5448409A
Authority
JP
Japan
Prior art keywords
control signal
giving
reception
malfunction
mobile
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
JP8370577A
Other languages
Japanese (ja)
Other versions
JPS563700B2 (en
Inventor
Tadatoshi Hagihira
Tsuneaki Oka
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.)
Toshiba Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Toshiba Corp
Nippon Telegraph and Telephone Corp
Tokyo Shibaura 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 Toshiba Corp, Nippon Telegraph and Telephone Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8370577A priority Critical patent/JPS5448409A/en
Publication of JPS5448409A publication Critical patent/JPS5448409A/en
Publication of JPS563700B2 publication Critical patent/JPS563700B2/ja
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To increase the reliability, by judging the malfunction based on the condition of giving and reception of control signal, and by preventing the malfunction of the control system in steadystate, through the mobile and display to the specific control flow automatically. CONSTITUTION:The period of operation of the transmitter 22 of the wired terminal is controlled with the logic conyrol circuit 30, electromagmetic waves are stopped at waiting, detectors 19 and 25 detecting the control signals f1 and f2 developed by thermselves are provided with the mobile terminal and wired terminal, and loop check is made by detecting the control signal delivered by itself that it is returned via the opposing unit, and the malfunction is displayed with the visual display unit 17. Further, the giving and reception of the control signal is made between the mobile and wired terminals at calling out and incoming, abd if the reception and giving of the control signal is not finished in a given time, it is displayed and each unit is able to be transferred to the specific operation mode.
JP8370577A 1977-07-13 1977-07-13 Radiotelephony system Granted JPS5448409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8370577A JPS5448409A (en) 1977-07-13 1977-07-13 Radiotelephony system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8370577A JPS5448409A (en) 1977-07-13 1977-07-13 Radiotelephony system

Publications (2)

Publication Number Publication Date
JPS5448409A true JPS5448409A (en) 1979-04-17
JPS563700B2 JPS563700B2 (en) 1981-01-27

Family

ID=13809898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8370577A Granted JPS5448409A (en) 1977-07-13 1977-07-13 Radiotelephony system

Country Status (1)

Country Link
JP (1) JPS5448409A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57141147A (en) * 1981-02-25 1982-09-01 Nec Corp Radio telephone set
JPS5991744A (en) * 1982-11-17 1984-05-26 Sanyo Electric Co Ltd Radiotelephone set
JPS63233625A (en) * 1987-03-23 1988-09-29 Toshiba Corp Dial number setting system in radiotelephony system
JPH03205947A (en) * 1990-05-23 1991-09-09 Sanyo Electric Co Ltd Cordless telephone system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4929501A (en) * 1972-07-15 1974-03-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4929501A (en) * 1972-07-15 1974-03-16

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57141147A (en) * 1981-02-25 1982-09-01 Nec Corp Radio telephone set
JPS6342982B2 (en) * 1981-02-25 1988-08-26 Nippon Electric Co
JPS5991744A (en) * 1982-11-17 1984-05-26 Sanyo Electric Co Ltd Radiotelephone set
JPS63233625A (en) * 1987-03-23 1988-09-29 Toshiba Corp Dial number setting system in radiotelephony system
JPH03205947A (en) * 1990-05-23 1991-09-09 Sanyo Electric Co Ltd Cordless telephone system
JPH048984B2 (en) * 1990-05-23 1992-02-18

Also Published As

Publication number Publication date
JPS563700B2 (en) 1981-01-27

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