JPS55109062A - Circuit switching device - Google Patents

Circuit switching device

Info

Publication number
JPS55109062A
JPS55109062A JP1600479A JP1600479A JPS55109062A JP S55109062 A JPS55109062 A JP S55109062A JP 1600479 A JP1600479 A JP 1600479A JP 1600479 A JP1600479 A JP 1600479A JP S55109062 A JPS55109062 A JP S55109062A
Authority
JP
Japan
Prior art keywords
circuit
switching device
receiver
identification
regeneration
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
JP1600479A
Other languages
Japanese (ja)
Other versions
JPS6313383B2 (en
Inventor
Koichi Shimoi
Koji Nishizaki
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 JP1600479A priority Critical patent/JPS55109062A/en
Publication of JPS55109062A publication Critical patent/JPS55109062A/en
Publication of JPS6313383B2 publication Critical patent/JPS6313383B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/20—Repeater circuits; Relay circuits
    • H04L25/24—Relay circuits using discharge tubes or semiconductor devices
    • H04L25/242—Relay circuits using discharge tubes or semiconductor devices with retiming

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

PURPOSE:To ensure the eacy contermeasure to the increment of the circuit number by forming the switching device as the repeater including the circuit switching circuit. CONSTITUTION:The following circuits are installed to receiver 21-1: equalization circuit 31-1 incorporating the peak value detection and AGC functions; timing extraction circuit 32-1 which extracts the clock component out of the digital data; and identification/regeneration circuit 33-1 which gives the identification and regeneration to the digital data in the extracted timing. These circuits are also rovided to receiver 21-2 as well. On the other hand, timing extraction circuit 34-1 and U/S converter 35-1 which converts the uni-polar signal into the transmission signal are installed to transmitter 22-1.
JP1600479A 1979-02-16 1979-02-16 Circuit switching device Granted JPS55109062A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1600479A JPS55109062A (en) 1979-02-16 1979-02-16 Circuit switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1600479A JPS55109062A (en) 1979-02-16 1979-02-16 Circuit switching device

Publications (2)

Publication Number Publication Date
JPS55109062A true JPS55109062A (en) 1980-08-21
JPS6313383B2 JPS6313383B2 (en) 1988-03-25

Family

ID=11904462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1600479A Granted JPS55109062A (en) 1979-02-16 1979-02-16 Circuit switching device

Country Status (1)

Country Link
JP (1) JPS55109062A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6068745A (en) * 1983-09-26 1985-04-19 Oki Electric Ind Co Ltd Exchange system of digital data transmission line

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4882711A (en) * 1972-02-03 1973-11-05
JPS4929011A (en) * 1972-07-12 1974-03-15

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4882711A (en) * 1972-02-03 1973-11-05
JPS4929011A (en) * 1972-07-12 1974-03-15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6068745A (en) * 1983-09-26 1985-04-19 Oki Electric Ind Co Ltd Exchange system of digital data transmission line

Also Published As

Publication number Publication date
JPS6313383B2 (en) 1988-03-25

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