GB259546A - Improvements in methods of reducing noise in telephone circuits - Google Patents

Improvements in methods of reducing noise in telephone circuits

Info

Publication number
GB259546A
GB259546A GB20406/26A GB2040626A GB259546A GB 259546 A GB259546 A GB 259546A GB 20406/26 A GB20406/26 A GB 20406/26A GB 2040626 A GB2040626 A GB 2040626A GB 259546 A GB259546 A GB 259546A
Authority
GB
United Kingdom
Prior art keywords
circuits
points
drained
phantom
systems
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
GB20406/26A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB259546A publication Critical patent/GB259546A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/30—Reducing interference caused by unbalanced currents in a normally balanced line

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
GB20406/26A 1925-10-07 1926-08-18 Improvements in methods of reducing noise in telephone circuits Expired GB259546A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61101A US1586633A (en) 1925-10-07 1925-10-07 Drainage method for four-wire-cable systems

Publications (1)

Publication Number Publication Date
GB259546A true GB259546A (en) 1927-05-12

Family

ID=22033591

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20406/26A Expired GB259546A (en) 1925-10-07 1926-08-18 Improvements in methods of reducing noise in telephone circuits

Country Status (5)

Country Link
US (1) US1586633A (enrdf_load_stackoverflow)
BE (1) BE336761A (enrdf_load_stackoverflow)
DE (1) DE484766C (enrdf_load_stackoverflow)
FR (1) FR619976A (enrdf_load_stackoverflow)
GB (1) GB259546A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107569229B (zh) * 2017-09-04 2021-02-02 歌尔科技有限公司 一种生物阻抗测量方法、装置及电子设备

Also Published As

Publication number Publication date
BE336761A (enrdf_load_stackoverflow)
FR619976A (fr) 1927-04-13
DE484766C (de) 1929-10-22
US1586633A (en) 1926-06-01

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