GB170584A - - Google Patents

Info

Publication number
GB170584A
GB170584A GB2786821A GB2786821A GB170584A GB 170584 A GB170584 A GB 170584A GB 2786821 A GB2786821 A GB 2786821A GB 2786821 A GB2786821 A GB 2786821A GB 170584 A GB170584 A GB 170584A
Authority
GB
United Kingdom
Prior art keywords
relay
receiving
loop
signals
sounder
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
GB2786821A
Other languages
English (en)
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 filed Critical
Publication of GB170584A publication Critical patent/GB170584A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Selective Calling Equipment (AREA)
GB2786821A 1920-10-21 1921-10-20 Expired GB170584A (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US41848420 US1551559A (en) 1920-10-21 1920-10-21 Carrier telegraph circuits
US439233A US1529801A (en) 1920-10-21 1921-01-22 Multiplex submarine cable
FR542975T 1921-11-02
DEB103593D DE485840C (de) 1920-10-21 1922-02-16 Vielfach-UEbertragungssystem

Publications (1)

Publication Number Publication Date
GB170584A true GB170584A (fr) 1923-03-20

Family

ID=40469921

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2786821A Expired GB170584A (fr) 1920-10-21 1921-10-20
GB4470/22A Expired GB198011A (en) 1920-10-21 1922-02-15 Improvements in multiplex transmission systems, particularly submarine cable systems

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB4470/22A Expired GB198011A (en) 1920-10-21 1922-02-15 Improvements in multiplex transmission systems, particularly submarine cable systems

Country Status (4)

Country Link
US (2) US1551559A (fr)
DE (2) DE429154C (fr)
FR (2) FR542975A (fr)
GB (2) GB170584A (fr)

Also Published As

Publication number Publication date
US1529801A (en) 1925-03-17
DE485840C (de) 1929-11-05
FR26022E (fr) 1923-07-18
GB198011A (en) 1923-05-15
DE429154C (de) 1926-05-20
FR542975A (fr) 1922-08-24
US1551559A (en) 1925-09-01

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