SE373253B - - Google Patents

Info

Publication number
SE373253B
SE373253B SE7108703A SE870371A SE373253B SE 373253 B SE373253 B SE 373253B SE 7108703 A SE7108703 A SE 7108703A SE 870371 A SE870371 A SE 870371A SE 373253 B SE373253 B SE 373253B
Authority
SE
Sweden
Application number
SE7108703A
Inventor
R Matsuda
M Terai
Y Hojyo
Original Assignee
Mippon Telegraph And Telephone
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 Mippon Telegraph And Telephone filed Critical Mippon Telegraph And Telephone
Publication of SE373253B publication Critical patent/SE373253B/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits
    • H04M1/585—Anti-side-tone circuits implemented without inductive element
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/586—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using an electronic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Amplifiers (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
SE7108703A 1970-09-03 1971-07-05 SE373253B (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45076677A JPS5148006B1 (xx) 1970-09-03 1970-09-03

Publications (1)

Publication Number Publication Date
SE373253B true SE373253B (xx) 1975-01-27

Family

ID=13612045

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7108703A SE373253B (xx) 1970-09-03 1971-07-05

Country Status (6)

Country Link
US (1) US3742153A (xx)
JP (1) JPS5148006B1 (xx)
CA (1) CA930883A (xx)
DE (1) DE2133401B2 (xx)
GB (1) GB1330117A (xx)
SE (1) SE373253B (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49123706A (xx) * 1973-03-30 1974-11-27
SE380699B (sv) * 1974-03-05 1975-11-10 Ericsson Telefon Ab L M Elektronisk talkrets for en centralbatterimatad telefonapparat.
GB1546046A (en) * 1976-12-03 1979-05-16 Cselt Centro Studi Lab Telecom Transmitting and receiving circuit for subscriber telephone sets
US5058155A (en) * 1989-12-01 1991-10-15 Gn Netcom A/S Multipurpose headset amplifier
WO2002095945A2 (en) * 2001-05-21 2002-11-28 Vasily Grigorievich Atyunin Method and apparatus for impedance matching in a transmission

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2818470A (en) * 1956-03-29 1957-12-31 Bell Telephone Labor Inc Compensated transistor circuit
BE621155A (xx) * 1961-08-07
US3170043A (en) * 1961-09-29 1965-02-16 Bell Telephone Labor Inc Telephone anti-sidetone circuit
US3546395A (en) * 1968-01-15 1970-12-08 Bell Telephone Labor Inc Active telephone set speech network employing transistor feedback loop for sidetone balance and equalization
SE334921B (xx) * 1968-01-18 1971-05-10 O Sternbeck
DE1762804B2 (de) * 1968-08-29 1972-01-20 Standard Elektrik Lorenz Ag, 7000 Stuttgart Schaltungsanordnung zur regelung der sende und empfangsbezugs daempfung einer teilnehmerstation einer fernsprechanlage

Also Published As

Publication number Publication date
DE2133401B2 (de) 1973-02-22
DE2133401A1 (de) 1972-03-16
JPS5148006B1 (xx) 1976-12-18
US3742153A (en) 1973-06-26
GB1330117A (en) 1973-09-12
CA930883A (en) 1973-07-24

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