GB497534A - High frequency signalling systems comprising electrical filters - Google Patents

High frequency signalling systems comprising electrical filters

Info

Publication number
GB497534A
GB497534A GB11219/38A GB1121938A GB497534A GB 497534 A GB497534 A GB 497534A GB 11219/38 A GB11219/38 A GB 11219/38A GB 1121938 A GB1121938 A GB 1121938A GB 497534 A GB497534 A GB 497534A
Authority
GB
United Kingdom
Prior art keywords
high frequency
signalling systems
filters
electrical filters
frequency signalling
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
GB11219/38A
Other languages
English (en)
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.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
C Lorenz 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 Standard Elektrik Lorenz AG, C Lorenz AG filed Critical Standard Elektrik Lorenz AG
Publication of GB497534A publication Critical patent/GB497534A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/02—Constructional details
    • H04Q1/04—Frames or mounting racks for selector switches; Accessories therefor, e.g. frame cover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H04H20/77—Wired systems using carrier waves
    • H04H20/81—Wired systems using carrier waves combined with telephone network over which the broadcast is continuously available
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/16—Arrangements for interconnection between switching centres in systems employing carrier frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Exchange Systems With Centralized Control (AREA)
GB11219/38A 1937-04-13 1938-04-12 High frequency signalling systems comprising electrical filters Expired GB497534A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE497534X 1937-04-13

Publications (1)

Publication Number Publication Date
GB497534A true GB497534A (en) 1938-12-21

Family

ID=6545191

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11219/38A Expired GB497534A (en) 1937-04-13 1938-04-12 High frequency signalling systems comprising electrical filters

Country Status (5)

Country Link
US (1) US2208917A (cg-RX-API-DMAC10.html)
BE (1) BE427559A (cg-RX-API-DMAC10.html)
CH (1) CH203270A (cg-RX-API-DMAC10.html)
FR (1) FR836524A (cg-RX-API-DMAC10.html)
GB (1) GB497534A (cg-RX-API-DMAC10.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR983080A (fr) * 1949-01-26 1951-06-19 Telecommunications Sa équipement moderne des centres et postes de matériel pour telecommunications

Also Published As

Publication number Publication date
FR836524A (fr) 1939-01-19
US2208917A (en) 1940-07-23
BE427559A (cg-RX-API-DMAC10.html) 1938-05-31
CH203270A (de) 1939-02-28

Similar Documents

Publication Publication Date Title
GB1049412A (en) Improvements in or relating to electric circuits for use in signalling systems
GB1198813A (en) R.F. Signal Distribution Station
GB514615A (en) High frequency signalling systems comprising electrical filters
GB1262156A (en) Apparatus for producing synchronisation in address-coded communication systems
ES377981A1 (es) Mejoras en los sistemas de seleccion para circuitos o equi-pos electricos.
GB523067A (en) Improvements in signal receivers for carrier telephony systems
GB520448A (en) Multiplex high frequency signal transmission systems
GB492006A (en) Improvements in high frequency signalling systems
GB495822A (en) Improvements in or relating to television distributing systems
GB498627A (en) Improvements in high frequency signalling systems
AU458300B2 (en) Apparatus for forming signals which indicate the holding condition and/or service signals ona telecommunication subscribers line
GB816113A (en) Improvements in multiplex carrier telephone systems
GB496123A (en) Improvements in or relating to wireless receiving systems
GB458612A (en) Improvements in and relating to systems for communication over power lines
GB488177A (en) Improvements in or relating to electric multi-channel carrier signalling systems
GB493903A (en) Improvements in or relating to electric signalling systems
GB506289A (en) Improvements in or relating to high frequency electrical signalling systems
AU289537A (en) High frequency signalling systems, particularly multiplex high frequency signalling systems
GB441451A (en) Improvements in or relating to electrical signalling systems
GB803510A (en) Improvements in or relating to time division multiplex communication systems
CA379967A (en) Multiplex carrier frequency communication system
AU167217B2 (en) Telecommunication exchange system using multiplex systems
GB511902A (en) System for multiplex telephony using go and return paths in one star cable
CA496189A (en) Telephone system arranged for voice frequency signaling
GB403571A (en) Improvements in carrier current signalling systems