GB439752A - Improvements in telephone repeaters - Google Patents

Improvements in telephone repeaters

Info

Publication number
GB439752A
GB439752A GB2379434A GB2379434A GB439752A GB 439752 A GB439752 A GB 439752A GB 2379434 A GB2379434 A GB 2379434A GB 2379434 A GB2379434 A GB 2379434A GB 439752 A GB439752 A GB 439752A
Authority
GB
United Kingdom
Prior art keywords
relay
networks
amplifier
winding
circuits
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
GB2379434A
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.)
AT&T Corp
Original Assignee
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
Priority to BE404976D priority Critical patent/BE404976A/xx
Priority to FR781474D priority patent/FR781474A/fr
Priority to NL40077D priority patent/NL40077C/xx
Priority to US687854A priority patent/US1997218A/en
Priority to US687880A priority patent/US1997245A/en
Priority to US687874A priority patent/US1997222A/en
Priority to US691465A priority patent/US2047729A/en
Priority to US695678A priority patent/US1997223A/en
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to GB2379434A priority patent/GB439752A/en
Publication of GB439752A publication Critical patent/GB439752A/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)
  • Interface Circuits In Exchanges (AREA)
GB2379434A 1933-09-01 1934-08-17 Improvements in telephone repeaters Expired GB439752A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
BE404976D BE404976A (forum.php) 1934-08-17
FR781474D FR781474A (forum.php) 1934-08-17
NL40077D NL40077C (forum.php) 1934-08-17
US687854A US1997218A (en) 1933-09-01 1933-09-01 Telephone repeater
US687880A US1997245A (en) 1933-09-01 1933-09-01 Telephone repeater
US687874A US1997222A (en) 1933-09-01 1933-09-01 Telephone repeater
US691465A US2047729A (en) 1933-09-29 1933-09-29 Transmission control in two-way signaling systems
US695678A US1997223A (en) 1933-10-28 1933-10-28 Telephone repeater
GB2379434A GB439752A (en) 1934-08-17 1934-08-17 Improvements in telephone repeaters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2379434A GB439752A (en) 1934-08-17 1934-08-17 Improvements in telephone repeaters

Publications (1)

Publication Number Publication Date
GB439752A true GB439752A (en) 1935-12-13

Family

ID=10201426

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2379434A Expired GB439752A (en) 1933-09-01 1934-08-17 Improvements in telephone repeaters

Country Status (4)

Country Link
BE (1) BE404976A (forum.php)
FR (1) FR781474A (forum.php)
GB (1) GB439752A (forum.php)
NL (1) NL40077C (forum.php)

Also Published As

Publication number Publication date
FR781474A (forum.php) 1935-05-16
BE404976A (forum.php)
NL40077C (forum.php)

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