JPS53117308A - Network telephone call system in loop shape - Google Patents

Network telephone call system in loop shape

Info

Publication number
JPS53117308A
JPS53117308A JP3254077A JP3254077A JPS53117308A JP S53117308 A JPS53117308 A JP S53117308A JP 3254077 A JP3254077 A JP 3254077A JP 3254077 A JP3254077 A JP 3254077A JP S53117308 A JPS53117308 A JP S53117308A
Authority
JP
Japan
Prior art keywords
telephone call
loop shape
call system
network telephone
multiply
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
JP3254077A
Other languages
Japanese (ja)
Inventor
Masahiro Oota
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 JP3254077A priority Critical patent/JPS53117308A/en
Publication of JPS53117308A publication Critical patent/JPS53117308A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • H04M9/022—Multiplex systems
    • H04M9/025—Time division multiplex systems, e.g. loop systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:The amplitude of specific pulses of a data signal is modulated to multiply a telephone signal, so that the mutual call between terminals will be made possible without accelerating a transmission speed and expanding the band.
JP3254077A 1977-03-23 1977-03-23 Network telephone call system in loop shape Pending JPS53117308A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3254077A JPS53117308A (en) 1977-03-23 1977-03-23 Network telephone call system in loop shape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3254077A JPS53117308A (en) 1977-03-23 1977-03-23 Network telephone call system in loop shape

Publications (1)

Publication Number Publication Date
JPS53117308A true JPS53117308A (en) 1978-10-13

Family

ID=12361759

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3254077A Pending JPS53117308A (en) 1977-03-23 1977-03-23 Network telephone call system in loop shape

Country Status (1)

Country Link
JP (1) JPS53117308A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56146389A (en) * 1980-03-20 1981-11-13 Telediffusion Fse Signal collecting device
JPS5840947A (en) * 1981-09-04 1983-03-10 Oki Electric Ind Co Ltd Channel multiplexing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56146389A (en) * 1980-03-20 1981-11-13 Telediffusion Fse Signal collecting device
JPS5840947A (en) * 1981-09-04 1983-03-10 Oki Electric Ind Co Ltd Channel multiplexing system

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