SE439224B - Anordning for overvakning av nivan hos en till en nivaregulator tillford insignal - Google Patents

Anordning for overvakning av nivan hos en till en nivaregulator tillford insignal

Info

Publication number
SE439224B
SE439224B SE7808929A SE7808929A SE439224B SE 439224 B SE439224 B SE 439224B SE 7808929 A SE7808929 A SE 7808929A SE 7808929 A SE7808929 A SE 7808929A SE 439224 B SE439224 B SE 439224B
Authority
SE
Sweden
Prior art keywords
level
circuit
signal
monitoring
input signal
Prior art date
Application number
SE7808929A
Other languages
English (en)
Swedish (sv)
Other versions
SE7808929L (sv
Inventor
H Namura
K Ohta
M Takeda
K Minematsu
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
Publication of SE7808929L publication Critical patent/SE7808929L/xx
Publication of SE439224B publication Critical patent/SE439224B/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/10—Control of transmission; Equalising by pilot signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/16—Monitoring arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
SE7808929A 1977-08-31 1978-08-24 Anordning for overvakning av nivan hos en till en nivaregulator tillford insignal SE439224B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10445577A JPS5437616A (en) 1977-08-31 1977-08-31 Input level supervising system for variable attenuator

Publications (2)

Publication Number Publication Date
SE7808929L SE7808929L (sv) 1979-03-01
SE439224B true SE439224B (sv) 1985-06-03

Family

ID=14381079

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7808929A SE439224B (sv) 1977-08-31 1978-08-24 Anordning for overvakning av nivan hos en till en nivaregulator tillford insignal

Country Status (6)

Country Link
US (1) US4185248A (nl)
JP (1) JPS5437616A (nl)
DE (1) DE2837728A1 (nl)
IT (1) IT1098733B (nl)
NL (1) NL177545C (nl)
SE (1) SE439224B (nl)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57154919A (en) * 1981-03-20 1982-09-24 Hitachi Denshi Ltd Detecting system for high frequency faulty power level
US4471324A (en) * 1982-01-19 1984-09-11 Dbx, Inc. All NPN variably controlled amplifier
JPS58111514U (ja) * 1982-01-25 1983-07-29 ロ−ランド株式会社 電圧制御型増幅回路
JPS58143615A (ja) * 1982-02-19 1983-08-26 Aihon Kk ゲインコントロ−ル回路
JPS58225712A (ja) * 1982-06-23 1983-12-27 Matsushita Electric Ind Co Ltd 自動利得制御回路
JPS59211309A (ja) * 1983-05-16 1984-11-30 Mitsubishi Electric Corp Ａｌｃ回路
JPH02263367A (ja) * 1989-04-04 1990-10-26 Pioneer Electron Corp ディスクプレーヤのピックアップ駆動装置
JP5336994B2 (ja) * 2009-10-19 2013-11-06 キヤノン株式会社 通信方法及び通信装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3178698A (en) * 1960-09-14 1965-04-13 Bell Telephone Labor Inc Regulator alarm circuit
GB1140235A (en) * 1966-05-23 1969-01-15 Standard Telephones Cables Ltd Improved method of monitoring amplifier gain
DE2235230C3 (de) * 1972-07-18 1983-03-03 Siemens AG, 1000 Berlin und 8000 München Pilotregeleinrichtung für Nachrichtenübertragungssysteme mit Reglerstillsetzung
DE2452993C3 (de) * 1974-11-08 1980-10-09 Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh, 8500 Nuernberg Schaltungsanordnung zur pilotgesteuerten Regelung von Wechselstromverstärkern in Nachrichtenübertragungssystemen

Also Published As

Publication number Publication date
NL177545C (nl) 1985-10-01
SE7808929L (sv) 1979-03-01
IT1098733B (it) 1985-09-07
NL7808784A (nl) 1979-03-02
JPS5624423B2 (nl) 1981-06-05
NL177545B (nl) 1985-05-01
DE2837728C2 (nl) 1989-06-22
IT7827175A0 (it) 1978-08-30
JPS5437616A (en) 1979-03-20
US4185248A (en) 1980-01-22
DE2837728A1 (de) 1979-03-08

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