DK534678A - WIRE AMPLIFIERS FOR FIRTRAADS-IN-INFORMATION TRANSFER DEVICES - Google Patents

WIRE AMPLIFIERS FOR FIRTRAADS-IN-INFORMATION TRANSFER DEVICES

Info

Publication number
DK534678A
DK534678A DK534978A DK534678A DK534678A DK 534678 A DK534678 A DK 534678A DK 534978 A DK534978 A DK 534978A DK 534678 A DK534678 A DK 534678A DK 534678 A DK534678 A DK 534678A
Authority
DK
Denmark
Prior art keywords
firtraads
information transfer
transfer devices
amplifiers
wire
Prior art date
Application number
DK534978A
Other languages
Danish (da)
Inventor
H Wildmoser
C Mueller
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 DK534678A publication Critical patent/DK534678A/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)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Fire Alarms (AREA)
DK534978A 1977-11-30 1978-11-29 WIRE AMPLIFIERS FOR FIRTRAADS-IN-INFORMATION TRANSFER DEVICES DK534678A (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 (1)

Publication Number Publication Date
DK534678A true DK534678A (en) 1979-05-31

Family

ID=6025020

Family Applications (1)

Application Number Title Priority Date Filing Date
DK534978A DK534678A (en) 1977-11-30 1978-11-29 WIRE AMPLIFIERS FOR FIRTRAADS-IN-INFORMATION TRANSFER DEVICES

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
YU40050B (en) 1985-06-30
ATA857578A (en) 1983-12-15
NO145969C (en) 1982-06-30
JPS54100212A (en) 1979-08-07
YU281178A (en) 1983-04-30
DE2753465B1 (en) 1979-01-18
IT1101136B (en) 1985-09-28
NO145969B (en) 1982-03-22
IT7830133A0 (en) 1978-11-24
AU515433B2 (en) 1981-04-02
DE2753465C2 (en) 1979-10-04
AU4179778A (en) 1979-06-07
NL7811729A (en) 1979-06-01
NO784019L (en) 1979-05-31
AT375509B (en) 1984-08-10
SE7812133L (en) 1979-05-31

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