IT1101136B - LINE AMPLIFIER FOR FOUR WIRE ELECTRIC COMMUNICATION EQUIPMENT - Google Patents

LINE AMPLIFIER FOR FOUR WIRE ELECTRIC COMMUNICATION EQUIPMENT

Info

Publication number
IT1101136B
IT1101136B IT30133/78A IT3013378A IT1101136B IT 1101136 B IT1101136 B IT 1101136B IT 30133/78 A IT30133/78 A IT 30133/78A IT 3013378 A IT3013378 A IT 3013378A IT 1101136 B IT1101136 B IT 1101136B
Authority
IT
Italy
Prior art keywords
communication equipment
wire electric
electric communication
line amplifier
amplifier
Prior art date
Application number
IT30133/78A
Other languages
Italian (it)
Other versions
IT7830133A0 (en
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of IT7830133A0 publication Critical patent/IT7830133A0/en
Application granted granted Critical
Publication of IT1101136B publication Critical patent/IT1101136B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems
    • H04B17/401—Monitoring; Testing of relay systems with selective localization
    • H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
    • H04B17/403—Monitoring; Testing of relay systems with selective localization using different frequencies generated by local oscillators

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Fire Alarms (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
IT30133/78A 1977-11-30 1978-11-24 LINE AMPLIFIER FOR FOUR WIRE ELECTRIC COMMUNICATION EQUIPMENT IT1101136B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2753465A DE2753465C2 (en) 1977-11-30 1977-11-30 Line amplifier for four-wire communications equipment

Publications (2)

Publication Number Publication Date
IT7830133A0 IT7830133A0 (en) 1978-11-24
IT1101136B true IT1101136B (en) 1985-09-28

Family

ID=6025020

Family Applications (1)

Application Number Title Priority Date Filing Date
IT30133/78A IT1101136B (en) 1977-11-30 1978-11-24 LINE AMPLIFIER FOR FOUR WIRE ELECTRIC COMMUNICATION EQUIPMENT

Country Status (10)

Country Link
JP (1) JPS54100212A (en)
AT (1) AT375509B (en)
AU (1) AU515433B2 (en)
DE (1) DE2753465C2 (en)
DK (1) DK534678A (en)
IT (1) IT1101136B (en)
NL (1) NL7811729A (en)
NO (1) NO145969C (en)
SE (1) SE7812133L (en)
YU (1) YU40050B (en)

Also Published As

Publication number Publication date
AU4179778A (en) 1979-06-07
DK534678A (en) 1979-05-31
DE2753465B1 (en) 1979-01-18
AU515433B2 (en) 1981-04-02
YU281178A (en) 1983-04-30
NO784019L (en) 1979-05-31
NL7811729A (en) 1979-06-01
NO145969C (en) 1982-06-30
NO145969B (en) 1982-03-22
JPS54100212A (en) 1979-08-07
IT7830133A0 (en) 1978-11-24
ATA857578A (en) 1983-12-15
AT375509B (en) 1984-08-10
DE2753465C2 (en) 1979-10-04
YU40050B (en) 1985-06-30
SE7812133L (en) 1979-05-31

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