ES393619A1 - Sistema de suspension de las mutuas perturbaciones ocasio- nadas por el emisor y receptor de un circuito telefonico. - Google Patents

Sistema de suspension de las mutuas perturbaciones ocasio- nadas por el emisor y receptor de un circuito telefonico.

Info

Publication number
ES393619A1
ES393619A1 ES393619A ES393619A ES393619A1 ES 393619 A1 ES393619 A1 ES 393619A1 ES 393619 A ES393619 A ES 393619A ES 393619 A ES393619 A ES 393619A ES 393619 A1 ES393619 A1 ES 393619A1
Authority
ES
Spain
Prior art keywords
transformer
square wave
reception
circuit
transmission
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
ES393619A
Other languages
English (en)
Spanish (es)
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.)
BAROK
Original Assignee
BAROK
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 BAROK filed Critical BAROK
Publication of ES393619A1 publication Critical patent/ES393619A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Circuit For Audible Band Transducer (AREA)
ES393619A 1970-08-06 1971-07-24 Sistema de suspension de las mutuas perturbaciones ocasio- nadas por el emisor y receptor de un circuito telefonico. Expired ES393619A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7029610A FR2102614A5 (OSRAM) 1970-08-06 1970-08-06

Publications (1)

Publication Number Publication Date
ES393619A1 true ES393619A1 (es) 1974-07-01

Family

ID=9060098

Family Applications (1)

Application Number Title Priority Date Filing Date
ES393619A Expired ES393619A1 (es) 1970-08-06 1971-07-24 Sistema de suspension de las mutuas perturbaciones ocasio- nadas por el emisor y receptor de un circuito telefonico.

Country Status (8)

Country Link
US (1) US3787621A (OSRAM)
BE (1) BE770227A (OSRAM)
CA (1) CA976287A (OSRAM)
CH (1) CH546524A (OSRAM)
DE (1) DE2136313A1 (OSRAM)
ES (1) ES393619A1 (OSRAM)
FR (1) FR2102614A5 (OSRAM)
GB (1) GB1360227A (OSRAM)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2314631A1 (fr) * 1975-06-11 1977-01-07 Jeumont Schneider Procede et dispositif d'elimination de l'effet local d'un poste telephonique
FR2376576A1 (fr) * 1976-12-31 1978-07-28 Girard J Philippe Perfectionnements aux postes telephoniques a mains libres
JPS5489403A (en) * 1977-12-27 1979-07-16 Matsushita Electric Ind Co Ltd Signal control circuit
DE3213968C2 (de) * 1982-04-16 1984-06-14 Deutsche Fernsprecher Gesellschaft Mbh Marburg, 3550 Marburg Fernsprechapparat
US4715062A (en) * 1985-03-22 1987-12-22 Tie/Communications, Inc. Speakerphone control circuit having low gain states and method for controlling gain of speakerphone
FI78373C (fi) * 1988-01-18 1989-07-10 Sostel Oy Telefontrafik- eller dataoeverfoeringssystem.
US5020101A (en) * 1989-04-10 1991-05-28 Gregory R. Brotz Musicians telephone interface

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL125146C (OSRAM) * 1958-12-29
US3594507A (en) * 1969-10-22 1971-07-20 William T Clark Feedback eliminating device for audio amplifying systems
US3665106A (en) * 1970-04-28 1972-05-23 Research Corp Intercommunication system

Also Published As

Publication number Publication date
DE2136313A1 (de) 1972-02-10
GB1360227A (en) 1974-07-17
CA976287A (en) 1975-10-14
BE770227A (fr) 1971-12-01
US3787621A (en) 1974-01-22
FR2102614A5 (OSRAM) 1972-04-07
CH546524A (fr) 1974-02-28

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