GB279455A - Improvements in telephone and like repeater circuits - Google Patents

Improvements in telephone and like repeater circuits

Info

Publication number
GB279455A
GB279455A GB27761/27A GB2776127A GB279455A GB 279455 A GB279455 A GB 279455A GB 27761/27 A GB27761/27 A GB 27761/27A GB 2776127 A GB2776127 A GB 2776127A GB 279455 A GB279455 A GB 279455A
Authority
GB
United Kingdom
Prior art keywords
relay
currents
valve
over
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
GB27761/27A
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.)
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 GB279455A publication Critical patent/GB279455A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/08—Modifications for reducing interference; Modifications for reducing effects due to line faults ; Receiver end arrangements for detecting or overcoming line faults
    • H04L25/085—Arrangements for reducing interference in line transmission systems, e.g. by differential transmission
    • 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)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Amplifiers (AREA)
  • Meter Arrangements (AREA)
GB27761/27A 1926-10-19 1927-10-19 Improvements in telephone and like repeater circuits Expired GB279455A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US142566A US1808915A (en) 1926-10-19 1926-10-19 Repeater circuits

Publications (1)

Publication Number Publication Date
GB279455A true GB279455A (en) 1929-01-21

Family

ID=22500346

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27761/27A Expired GB279455A (en) 1926-10-19 1927-10-19 Improvements in telephone and like repeater circuits

Country Status (6)

Country Link
US (1) US1808915A (pt)
BE (1) BE345819A (pt)
DE (1) DE510109C (pt)
FR (1) FR641152A (pt)
GB (1) GB279455A (pt)
NL (1) NL25650C (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515187A (en) * 1942-04-09 1950-07-18 William R Bliss Wide dynamic range amplifying and demodulating system
US2852622A (en) * 1955-01-13 1958-09-16 Collins Radio Co Signal-to-noise squelch control circuit

Also Published As

Publication number Publication date
DE510109C (de) 1930-10-16
BE345819A (pt)
FR641152A (fr) 1928-07-30
NL25650C (pt)
US1808915A (en) 1931-06-09

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