JPS5448405A - Radiotelephony system - Google Patents

Radiotelephony system

Info

Publication number
JPS5448405A
JPS5448405A JP8370177A JP8370177A JPS5448405A JP S5448405 A JPS5448405 A JP S5448405A JP 8370177 A JP8370177 A JP 8370177A JP 8370177 A JP8370177 A JP 8370177A JP S5448405 A JPS5448405 A JP S5448405A
Authority
JP
Japan
Prior art keywords
waiting
electromagnetic waves
transmission
wired terminal
control
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
JP8370177A
Other languages
Japanese (ja)
Other versions
JPS569809B2 (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 JP8370177A priority Critical patent/JPS5448405A/en
Publication of JPS5448405A publication Critical patent/JPS5448405A/en
Publication of JPS569809B2 publication Critical patent/JPS569809B2/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

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

Abstract

PURPOSE:To save power and to increase the reliablity of control system, by stopping the transmission of electromagnetic waves at waiting and by performing the loop check of the control signal path through the modulation of the return signal. CONSTITUTION:The period of operation of the transmitter 22 in the wired terminal unit is controlled with the logic control circuit 30 and the transmission of electromagnetic waves is stopped at waiting. Further, the detectors 19 and 35 of the control signals f1 and f2 are provided for the mobile and wired terminal, and the loop check is performed by detecting that a part of the output of the receiver 23 is fed to the delivery signal switch 27 via the modulator 37 and the control signal delivered by itself is returned via the opposing side.
JP8370177A 1977-07-13 1977-07-13 Radiotelephony system Granted JPS5448405A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8370177A JPS5448405A (en) 1977-07-13 1977-07-13 Radiotelephony system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8370177A JPS5448405A (en) 1977-07-13 1977-07-13 Radiotelephony system

Publications (2)

Publication Number Publication Date
JPS5448405A true JPS5448405A (en) 1979-04-17
JPS569809B2 JPS569809B2 (en) 1981-03-04

Family

ID=13809788

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8370177A Granted JPS5448405A (en) 1977-07-13 1977-07-13 Radiotelephony system

Country Status (1)

Country Link
JP (1) JPS5448405A (en)

Also Published As

Publication number Publication date
JPS569809B2 (en) 1981-03-04

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