GB230495A - Improvements in or relating to telephone lines - Google Patents

Improvements in or relating to telephone lines

Info

Publication number
GB230495A
GB230495A GB642025A GB642025A GB230495A GB 230495 A GB230495 A GB 230495A GB 642025 A GB642025 A GB 642025A GB 642025 A GB642025 A GB 642025A GB 230495 A GB230495 A GB 230495A
Authority
GB
United Kingdom
Prior art keywords
telephone lines
amplifiers
sections
relating
section
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
GB642025A
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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
Priority claimed from DES65409D external-priority patent/DE464821C/de
Application filed by Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Publication of GB230495A publication Critical patent/GB230495A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/40—Artificial lines; Networks simulating a line of certain length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/26—Improving frequency characteristic by the use of loading coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Amplifiers (AREA)
GB642025A 1924-03-10 1925-03-09 Improvements in or relating to telephone lines Expired GB230495A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES65409D DE464821C (de) 1924-03-10 1924-03-10 Fernsprechleitung mit ueber die Leitung verteilten Verstaerkern
DES68043D DE465577C (de) 1924-03-10 1924-12-09 Verlaengerungsleitung fuer eine Fernsprechleitung mit Verstaerkern

Publications (1)

Publication Number Publication Date
GB230495A true GB230495A (en) 1925-05-14

Family

ID=27789672

Family Applications (2)

Application Number Title Priority Date Filing Date
GB642025A Expired GB230495A (en) 1924-03-10 1925-03-09 Improvements in or relating to telephone lines
GB726425A Expired GB244396A (en) 1924-03-10 1925-03-17 Improvements in or relating to telephone lines or cables

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB726425A Expired GB244396A (en) 1924-03-10 1925-03-17 Improvements in or relating to telephone lines or cables

Country Status (5)

Country Link
AT (1) AT103848B (enrdf_load_stackoverflow)
DE (1) DE465577C (enrdf_load_stackoverflow)
FR (1) FR594849A (enrdf_load_stackoverflow)
GB (2) GB230495A (enrdf_load_stackoverflow)
NL (1) NL17022C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
NL17022C (enrdf_load_stackoverflow)
GB244396A (en) 1926-06-10
DE465577C (de) 1928-09-22
FR594849A (fr) 1925-09-19
AT103848B (de) 1926-07-26

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