GB281297A - Improvements relating to telephone systems - Google Patents

Improvements relating to telephone systems

Info

Publication number
GB281297A
GB281297A GB31498/27A GB3149827A GB281297A GB 281297 A GB281297 A GB 281297A GB 31498/27 A GB31498/27 A GB 31498/27A GB 3149827 A GB3149827 A GB 3149827A GB 281297 A GB281297 A GB 281297A
Authority
GB
United Kingdom
Prior art keywords
amplifier
improvements relating
telephone systems
line
artificial line
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
GB31498/27A
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 AG
Original Assignee
Siemens and Halske AG
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 and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB281297A publication Critical patent/GB281297A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/14—Control of transmission; Equalising characterised by the equalising network used
    • H04B3/143—Control of transmission; Equalising characterised by the equalising network used using amplitude-frequency equalisers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Microwave Amplifiers (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Telephone Function (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
GB31498/27A 1926-11-24 1927-11-23 Improvements relating to telephone systems Expired GB281297A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE281297X 1926-11-24

Publications (1)

Publication Number Publication Date
GB281297A true GB281297A (en) 1929-02-25

Family

ID=6035381

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31498/27A Expired GB281297A (en) 1926-11-24 1927-11-23 Improvements relating to telephone systems

Country Status (4)

Country Link
BE (1) BE338079A (pl)
DE (2) DE498904C (pl)
FR (2) FR624437A (pl)
GB (1) GB281297A (pl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE970615C (de) * 1953-09-24 1958-10-09 Pintsch Electro G M B H Gabelschaltung mit an allen drei Klemmenpaaren gleichem Scheinwiderstand

Also Published As

Publication number Publication date
FR34540E (pl) 1929-09-12
DE498904C (de) 1930-06-03
DE500444C (de) 1930-06-20
BE338079A (pl)
FR624437A (fr) 1927-07-18

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