DK204179A - Ekkospaerre - Google Patents

Ekkospaerre

Info

Publication number
DK204179A
DK204179A DK204179A DK204179A DK204179A DK 204179 A DK204179 A DK 204179A DK 204179 A DK204179 A DK 204179A DK 204179 A DK204179 A DK 204179A DK 204179 A DK204179 A DK 204179A
Authority
DK
Denmark
Prior art keywords
path
tone
control circuit
control
transmitting path
Prior art date
Application number
DK204179A
Other languages
English (en)
Inventor
D Pfeil
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 DK204179A publication Critical patent/DK204179A/da

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Fats And Perfumes (AREA)
  • Lubricants (AREA)
  • Detergent Compositions (AREA)
DK204179A 1978-05-18 1979-05-17 Ekkospaerre DK204179A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2821743A DE2821743C2 (de) 1978-05-18 1978-05-18 Echosperre

Publications (1)

Publication Number Publication Date
DK204179A true DK204179A (da) 1979-11-19

Family

ID=6039651

Family Applications (1)

Application Number Title Priority Date Filing Date
DK204179A DK204179A (da) 1978-05-18 1979-05-17 Ekkospaerre

Country Status (5)

Country Link
EP (1) EP0005759B1 (da)
AT (1) ATE34T1 (da)
AU (1) AU517093B2 (da)
DE (2) DE2821743C2 (da)
DK (1) DK204179A (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332006A1 (de) * 1983-09-05 1985-03-21 Hartmann & Braun Ag, 6000 Frankfurt Bidirektionaler regenerator fuer blockweise uebertragene serielle impulsfolgen

Also Published As

Publication number Publication date
AU517093B2 (en) 1981-07-09
EP0005759A1 (de) 1979-12-12
DE2821743C2 (de) 1980-07-17
ATE34T1 (de) 1981-04-15
AU4717179A (en) 1979-11-22
EP0005759B1 (de) 1981-04-01
DE2821743B1 (de) 1979-11-08
DE2960232D1 (en) 1981-04-23

Similar Documents

Publication Publication Date Title
MY112932A (en) Input switching control device and communication circuit
JPS57109089A (en) Initial value resetting circuit for operational amplifier
DK204179A (da) Ekkospaerre
ES8504411A1 (es) Dispositivo de sintonizacion de radiofrecuencia
JPS5380132A (en) Signal control circuit
JPS5658306A (en) Automatic gain control circuit
JPS553298A (en) Circuit device for transmitting signal of shield potential without ground in communication facility
JPS5544238A (en) Signal switching circuit
JPS5566012A (en) Input signal circuit
JPS5590146A (en) Optical transmitter
JPS5748832A (en) Signal selection circuit
JPS5363913A (en) Signal transmission circuit
JPS5297614A (en) Control circuit
JPS56123110A (en) Muting circuit
JPS5754450A (ja) Sohokoshingodensokairo
ES507791A0 (es) Perfeccionamientos en la fabricacion de aparatos telefonicos .
JPS6451714A (en) Voltage comparator circuit
JPS55140316A (en) Voltage control high frequency variable attenuation device
JPS53138261A (en) Integrated circuit device
JPS57124940A (en) Voltage level converting circuit
JPS52149004A (en) Moving communication unit
JPS56114439A (en) Invertor circuit
JPS5344145A (en) Input-output-insulation-type signal transmission circuit
JPS52149002A (en) Moving communication unit
JPS5591250A (en) Digital communication device