JPS5422112A - Automatic switching system for receiving signal - Google Patents

Automatic switching system for receiving signal

Info

Publication number
JPS5422112A
JPS5422112A JP8688977A JP8688977A JPS5422112A JP S5422112 A JPS5422112 A JP S5422112A JP 8688977 A JP8688977 A JP 8688977A JP 8688977 A JP8688977 A JP 8688977A JP S5422112 A JPS5422112 A JP S5422112A
Authority
JP
Japan
Prior art keywords
receiving signal
switching system
automatic switching
receiving
secure
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
JP8688977A
Other languages
Japanese (ja)
Other versions
JPS60822B2 (en
Inventor
Takao Hara
Toru Onuma
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 Ltd
Original Assignee
Fujitsu 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 Ltd filed Critical Fujitsu Ltd
Priority to JP8688977A priority Critical patent/JPS60822B2/en
Publication of JPS5422112A publication Critical patent/JPS5422112A/en
Publication of JPS60822B2 publication Critical patent/JPS60822B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/208—Frequency-division multiple access [FDMA]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE:To secure both the detection of the fault occurrence and the switching of the receiving signal regardless of the frequency fluctuation due to the time changing of the equipment and the channel variation for the SCPC system, by detecting the receiving level of the pilot signal.
JP8688977A 1977-07-20 1977-07-20 Received signal automatic switching method Expired JPS60822B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8688977A JPS60822B2 (en) 1977-07-20 1977-07-20 Received signal automatic switching method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8688977A JPS60822B2 (en) 1977-07-20 1977-07-20 Received signal automatic switching method

Publications (2)

Publication Number Publication Date
JPS5422112A true JPS5422112A (en) 1979-02-19
JPS60822B2 JPS60822B2 (en) 1985-01-10

Family

ID=13899393

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8688977A Expired JPS60822B2 (en) 1977-07-20 1977-07-20 Received signal automatic switching method

Country Status (1)

Country Link
JP (1) JPS60822B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH077230U (en) * 1993-06-30 1995-01-31 八重洲無線株式会社 Volume controller for wireless communication device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61129240U (en) * 1985-01-31 1986-08-13
JPS61129239U (en) * 1985-01-31 1986-08-13
JPS61161836U (en) * 1985-03-27 1986-10-07
JPH0175926U (en) * 1987-11-10 1989-05-23
FR3084514B1 (en) 2018-07-25 2021-02-26 C&K Components S A S TOUCH-EFFECT ELECTRIC SWITCH WITH AXIAL POSITIONING OF THE FLEXIBLE ACTUATOR ACTUATOR TRUNK

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH077230U (en) * 1993-06-30 1995-01-31 八重洲無線株式会社 Volume controller for wireless communication device

Also Published As

Publication number Publication date
JPS60822B2 (en) 1985-01-10

Similar Documents

Publication Publication Date Title
JPS5422112A (en) Automatic switching system for receiving signal
JPS5255405A (en) Pilot test system
JPS5372514A (en) Fault detector of repeater
JPS53120310A (en) Reception system for start-stop signal
JPS543402A (en) Privacy communication system
JPS5376798A (en) Receiver of fire alarm system
JPS5389307A (en) Test system for communicating line system
JPS5432011A (en) Monitor system
JPS527618A (en) Satellite circuit quality monitoring system
JPS5398710A (en) Folded test control system for circuit
JPS51119942A (en) Detector for abnormal transmission signal abnormal detector
JPS54813A (en) Signal transmission system
JPS5431213A (en) Data transmission system
JPS5398704A (en) Optical multiplex transmission system
JPS5398713A (en) Monitor system for fault retrieval
GB1092757A (en) Automatic regulation process and system for transmission channels
JPS53132935A (en) Circuit control system
JPS536849A (en) System for monitoring defectiveness in line
JPS53139912A (en) Audio detector of adaptive type
JPS52100809A (en) Radio transmission and reception device
JPS5378709A (en) Fault monitoring system
JPS52146104A (en) Line monitoring system
JPS5392602A (en) Control signal repeating installation
JPS5377114A (en) Monitoring system for multiple communication unit
JPS52149011A (en) Pilot circuit block signal monitor system