ES460180A1 - Perfeccionamientos en repetidores de frecuencia vocal y a- juste automatico. - Google Patents

Perfeccionamientos en repetidores de frecuencia vocal y a- juste automatico.

Info

Publication number
ES460180A1
ES460180A1 ES460180A ES460180A ES460180A1 ES 460180 A1 ES460180 A1 ES 460180A1 ES 460180 A ES460180 A ES 460180A ES 460180 A ES460180 A ES 460180A ES 460180 A1 ES460180 A1 ES 460180A1
Authority
ES
Spain
Prior art keywords
repeater
temperature
output
dividing
voice frequency
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.)
Expired
Application number
ES460180A
Other languages
English (en)
Spanish (es)
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom 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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of ES460180A1 publication Critical patent/ES460180A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • H04M19/005—Feeding arrangements without the use of line transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Radio Relay Systems (AREA)
ES460180A 1976-06-28 1977-06-28 Perfeccionamientos en repetidores de frecuencia vocal y a- juste automatico. Expired ES460180A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA255,888A CA1036736A (fr) 1976-06-28 1976-06-28 Repeteur a frequence vocale auto-reglable

Publications (1)

Publication Number Publication Date
ES460180A1 true ES460180A1 (es) 1978-05-16

Family

ID=4106308

Family Applications (1)

Application Number Title Priority Date Filing Date
ES460180A Expired ES460180A1 (es) 1976-06-28 1977-06-28 Perfeccionamientos en repetidores de frecuencia vocal y a- juste automatico.

Country Status (8)

Country Link
JP (1) JPS532016A (fr)
CA (1) CA1036736A (fr)
DE (1) DE2721035A1 (fr)
ES (1) ES460180A1 (fr)
FR (1) FR2357123A1 (fr)
GB (1) GB1531691A (fr)
NL (1) NL7705061A (fr)
SE (1) SE7707460L (fr)

Also Published As

Publication number Publication date
NL7705061A (nl) 1977-12-30
FR2357123A1 (fr) 1978-01-27
DE2721035A1 (de) 1978-01-12
SE7707460L (sv) 1977-12-29
GB1531691A (en) 1978-11-08
CA1036736A (fr) 1978-08-15
JPS532016A (en) 1978-01-10

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