FR2155372A5 - - Google Patents

Info

Publication number
FR2155372A5
FR2155372A5 FR7234097A FR7234097A FR2155372A5 FR 2155372 A5 FR2155372 A5 FR 2155372A5 FR 7234097 A FR7234097 A FR 7234097A FR 7234097 A FR7234097 A FR 7234097A FR 2155372 A5 FR2155372 A5 FR 2155372A5
Authority
FR
France
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
FR7234097A
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.)
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Application granted granted Critical
Publication of FR2155372A5 publication Critical patent/FR2155372A5/fr
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Devices For Supply Of Signal Current (AREA)
FR7234097A 1971-09-30 1972-09-27 Expired FR2155372A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712148929 DE2148929B2 (de) 1971-09-30 1971-09-30 Monolithisch integrierbare Schaltungsanordnung für eine Sprechschaltung für zentralgespeiste Teilnehmerstationen mit einem Hörverstärker und einem Mikrofonverstärker

Publications (1)

Publication Number Publication Date
FR2155372A5 true FR2155372A5 (fr) 1973-05-18

Family

ID=5821117

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7234097A Expired FR2155372A5 (fr) 1971-09-30 1972-09-27

Country Status (11)

Country Link
JP (1) JPS4843809A (fr)
AT (1) AT321374B (fr)
BE (1) BE789514A (fr)
CH (1) CH548714A (fr)
DE (1) DE2148929B2 (fr)
FR (1) FR2155372A5 (fr)
GB (1) GB1407216A (fr)
IT (1) IT967956B (fr)
LU (1) LU66185A1 (fr)
NL (1) NL7213094A (fr)
SE (1) SE381791B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071713A (en) * 1976-12-27 1978-01-31 Northern Telecom Limited Telephone speech network
DE3309822C2 (de) * 1983-03-18 1985-11-14 Siemens AG, 1000 Berlin und 8000 München Gabelschaltung für eine zentralgespeiste Teilnehmerstation
AT397325B (de) * 1992-05-25 1994-03-25 Akg Akustische Kino Geraete Aus zwei operationsverstärkern gebildete schaltung für eine teilnehmersprechstelle

Also Published As

Publication number Publication date
SE381791B (sv) 1975-12-15
CH548714A (de) 1974-04-30
IT967956B (it) 1974-03-11
AT321374B (de) 1975-03-25
DE2148929B2 (de) 1974-06-06
GB1407216A (en) 1975-09-24
NL7213094A (fr) 1973-04-03
JPS4843809A (fr) 1973-06-25
LU66185A1 (fr) 1973-01-17
BE789514A (fr) 1973-03-29
DE2148929A1 (de) 1973-04-05

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Legal Events

Date Code Title Description
ST Notification of lapse