SE7709461L - Anslutningsutrustning for ett berfrekvens-telefonsystem - Google Patents

Anslutningsutrustning for ett berfrekvens-telefonsystem

Info

Publication number
SE7709461L
SE7709461L SE7709461A SE7709461A SE7709461L SE 7709461 L SE7709461 L SE 7709461L SE 7709461 A SE7709461 A SE 7709461A SE 7709461 A SE7709461 A SE 7709461A SE 7709461 L SE7709461 L SE 7709461L
Authority
SE
Sweden
Prior art keywords
telephone system
connecting equipment
frequency telephone
ber frequency
ber
Prior art date
Application number
SE7709461A
Other languages
English (en)
Other versions
SE428622B (sv
Inventor
C Boulanger
C Poinas
Original Assignee
Cit Alcatel
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 Cit Alcatel filed Critical Cit Alcatel
Publication of SE7709461L publication Critical patent/SE7709461L/sv
Publication of SE428622B publication Critical patent/SE428622B/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/02—Selecting arrangements for multiplex systems for frequency-division multiplexing
    • 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)
  • Telephonic Communication Services (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
SE7709461A 1976-08-24 1977-08-23 Avslutningsutrustning for ett berfrekvens-telefonsystem SE428622B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7625577A FR2363247A1 (fr) 1976-08-24 1976-08-24 Equipement terminal pour un systeme multiplex telephonique a courants porteurs

Publications (2)

Publication Number Publication Date
SE7709461L true SE7709461L (sv) 1978-02-25
SE428622B SE428622B (sv) 1983-07-11

Family

ID=9177096

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7709461A SE428622B (sv) 1976-08-24 1977-08-23 Avslutningsutrustning for ett berfrekvens-telefonsystem

Country Status (7)

Country Link
US (1) US4130743A (sv)
JP (1) JPS5326608A (sv)
DE (1) DE2737082A1 (sv)
FR (1) FR2363247A1 (sv)
GB (1) GB1534470A (sv)
NL (1) NL7709172A (sv)
SE (1) SE428622B (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4644108A (en) * 1982-10-27 1987-02-17 International Business Machines Corporation Adaptive sub-band echo suppressor
GB2139054B (en) * 1983-04-22 1986-09-24 Gen Electric Co Plc Loudspeaking telephone instruments
US7113750B2 (en) * 2002-12-16 2006-09-26 Tektronix, Inc. Apparatus and method for input channel isolation within an electronic test instrument
CN100442059C (zh) * 2004-05-21 2008-12-10 特克特朗尼克公司 在电子测试仪器中用于将输入信道隔离的装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2251028A (en) * 1940-09-28 1941-07-29 Bell Telephone Labor Inc Control of transmission in two-way signal wave transmission systems
US2258966A (en) * 1940-10-12 1941-10-14 Bell Telephone Labor Inc Control of transmission in two-way signaling systems
US2295153A (en) * 1941-06-10 1942-09-08 Bell Telephone Labor Inc Two-way signal transmission system
US3397401A (en) * 1966-05-27 1968-08-13 Hughes Aircraft Co Voice operated communication system
US3896273A (en) * 1971-01-08 1975-07-22 Communications Satellite Corp Digital echo suppressor
DE2457876C3 (de) * 1973-12-10 1981-06-04 Compagnie Industrielle des Télécommunications CIT-ALCATEL S.A., 75008 Paris Echounterdrücker für ein Endgerät einer elektrischen Vierdrahtfernsprechleitung
US3942116A (en) * 1975-03-13 1976-03-02 California Microwave, Inc. Transceiver having improved voice actuated carrier and echo suppression circuit

Also Published As

Publication number Publication date
NL7709172A (nl) 1978-02-28
JPS5326608A (en) 1978-03-11
GB1534470A (en) 1978-12-06
US4130743A (en) 1978-12-19
FR2363247A1 (fr) 1978-03-24
DE2737082A1 (de) 1978-03-09
FR2363247B1 (sv) 1981-03-06
SE428622B (sv) 1983-07-11

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