GB211135A - Improvements in two-way transmission systems with repeaters, particularly for telephone lines - Google Patents

Improvements in two-way transmission systems with repeaters, particularly for telephone lines

Info

Publication number
GB211135A
GB211135A GB3101/24A GB310124A GB211135A GB 211135 A GB211135 A GB 211135A GB 3101/24 A GB3101/24 A GB 3101/24A GB 310124 A GB310124 A GB 310124A GB 211135 A GB211135 A GB 211135A
Authority
GB
United Kingdom
Prior art keywords
relay
leads
currents
energizes
frequency
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
GB3101/24A
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.)
WESTERN ELECTRIC CO Ltd
AT&T Corp
Original Assignee
WESTERN ELECTRIC CO Ltd
Western Electric Co Inc
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 WESTERN ELECTRIC CO Ltd, Western Electric Co Inc filed Critical WESTERN ELECTRIC CO Ltd
Publication of GB211135A publication Critical patent/GB211135A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Selective Calling Equipment (AREA)
  • Interface Circuits In Exchanges (AREA)
GB3101/24A 1923-02-07 1924-02-06 Improvements in two-way transmission systems with repeaters, particularly for telephone lines Expired GB211135A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US617512A US1526550A (en) 1923-02-07 1923-02-07 Two-way transmission with repeaters

Publications (1)

Publication Number Publication Date
GB211135A true GB211135A (en) 1925-05-06

Family

ID=24473926

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3101/24A Expired GB211135A (en) 1923-02-07 1924-02-06 Improvements in two-way transmission systems with repeaters, particularly for telephone lines
GB3488/24A Expired GB219927A (enrdf_load_stackoverflow) 1923-02-07 1924-02-11

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3488/24A Expired GB219927A (enrdf_load_stackoverflow) 1923-02-07 1924-02-11

Country Status (2)

Country Link
US (1) US1526550A (enrdf_load_stackoverflow)
GB (2) GB211135A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2162162C1 (ru) * 1999-06-09 2001-01-20 Открытое акционерное общество Акционерной нефтяной компании "Башнефть" Групповой привод штанговых насосов

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2162162C1 (ru) * 1999-06-09 2001-01-20 Открытое акционерное общество Акционерной нефтяной компании "Башнефть" Групповой привод штанговых насосов

Also Published As

Publication number Publication date
US1526550A (en) 1925-02-17
GB219927A (enrdf_load_stackoverflow) 1925-05-11

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