FR2465384B1 - - Google Patents

Info

Publication number
FR2465384B1
FR2465384B1 FR8019844A FR8019844A FR2465384B1 FR 2465384 B1 FR2465384 B1 FR 2465384B1 FR 8019844 A FR8019844 A FR 8019844A FR 8019844 A FR8019844 A FR 8019844A FR 2465384 B1 FR2465384 B1 FR 2465384B1
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
FR8019844A
Other versions
FR2465384A1 (fr
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 claimed from GB7932109A external-priority patent/GB2030571B/en
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2465384A1 publication Critical patent/FR2465384A1/fr
Application granted granted Critical
Publication of FR2465384B1 publication Critical patent/FR2465384B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
FR8019844A 1979-09-17 1980-09-15 Dispositif de telephonie electronique a connecter a une ligne de transmission de signaux Granted FR2465384A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7932109A GB2030571B (en) 1978-09-18 1979-09-17 Method for hydrolysis of milk protein
GB7932108A GB2064268B (en) 1979-09-17 1979-09-17 Electronic signalling device for connection to a signal transmission line

Publications (2)

Publication Number Publication Date
FR2465384A1 FR2465384A1 (fr) 1981-03-20
FR2465384B1 true FR2465384B1 (fr) 1983-04-29

Family

ID=26272906

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8019844A Granted FR2465384A1 (fr) 1979-09-17 1980-09-15 Dispositif de telephonie electronique a connecter a une ligne de transmission de signaux

Country Status (4)

Country Link
US (1) US4376876A (fr)
DE (1) DE3034682A1 (fr)
FR (1) FR2465384A1 (fr)
GB (1) GB2064268B (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1186826A (fr) * 1981-03-18 1985-05-07 Jin H. Yun Telephone a haut-parleur
FR2518858A1 (fr) * 1981-12-23 1983-06-24 Jeumont Schneider Dispositif de transmission de signaux sur une ligne assurant egalement une alimentation en tension continue
NL8200666A (nl) * 1982-02-19 1983-09-16 Philips Nv Transmissieschakeling voor een elektronisch telefoontoestel.
GB8317706D0 (en) * 1983-06-29 1983-08-03 Standard Telephones Cables Ltd Telephone subsets
FR2556909B1 (fr) * 1983-12-14 1986-04-18 Radiotechnique Compelec Dispositif d'interface pour un poste telephonique
DE3429330C2 (de) * 1984-08-09 1986-09-11 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Schaltungsanordnung zur Speisung einer Teilnehmerstation
WO1985003614A1 (fr) * 1984-02-08 1985-08-15 Moses Klaus M Circuit pour l'alimentation electrique des dispositifs d'un appareil telephonique
FR2601538A1 (fr) * 1986-07-09 1988-01-15 Radiotechnique Compelec Poste telephonique dont plusieurs fonctions electroniques sont alimentees par le courant de ligne et notamment la fonction d'ecoute amplifiee par haut-parleur
SE455749B (sv) * 1986-12-09 1988-08-01 Ericsson Telefon Ab L M Anordning vid en hogtalareforsedd telefonapparat for att effektforsorja en till hogtalaren ansluten hogtalareforsterkare
DE3709012A1 (de) * 1987-03-19 1988-09-29 Kuke Kg Fritz Schaltungsanordnung zur signalisierung eines anrufes fuer ein in ein digitales fernsprechnetz geschaltetes endgeraet
DE3743055A1 (de) * 1987-12-18 1989-06-29 Standard Elektrik Lorenz Ag Schaltungsanordnung zur speisung von zusatzschaltungen eines fernsprechapparates
CA1313432C (fr) * 1989-07-06 1993-02-02 Terence Neil Thomas Montage d'excitation de haut-parleur d'appareil telephonique
DE4009954A1 (de) * 1990-03-28 1991-10-10 Siemens Ag Schaltungsanordnung fuer eine eingangs- und stromversorgungsschaltung fuer digitale fernsprechendgeraete
DE4019365A1 (de) * 1990-06-18 1991-12-19 Philips Patentverwaltung Schaltungsanordnung fuer ein teilnehmergeraet
DE4212858A1 (de) * 1992-04-16 1993-10-21 Siemens Ag Tonrufschaltung
DE19521907C2 (de) * 1995-06-16 1997-09-25 Telefunken Microelectron Signalkoppelschaltung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3536838A (en) * 1968-10-01 1970-10-27 Bell Telephone Labor Inc Amplifier with voice- and line-switched gain controls in negative feedback path
CA930488A (en) * 1971-08-27 1973-07-17 C. J. Cowpland Michael Power supply
FR2282198A1 (fr) * 1974-08-12 1976-03-12 Trt Telecom Radio Electr Poste telephonique d'abonne muni d'un appareillage electrique destine a etre alimente a partir du courant de boucle
NL174420C (nl) * 1975-06-30 1984-06-01 Philips Nv Beveiligingsinrichting voor een telefoontoestel.
NL7802423A (nl) * 1978-03-06 1979-09-10 Philips Nv Voedingsinrichting voor een lijnstroomloop.
US4254305A (en) * 1979-02-07 1981-03-03 International Telephone And Telegraph Corporation Current limited subscriber line feed circuit
US4268723A (en) * 1979-09-04 1981-05-19 Western Electric Company Circuits and methods for initializing the loop current of a telephone set

Also Published As

Publication number Publication date
GB2064268B (en) 1983-10-26
GB2064268A (en) 1981-06-10
DE3034682A1 (de) 1981-04-02
US4376876A (en) 1983-03-15
FR2465384A1 (fr) 1981-03-20

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Legal Events

Date Code Title Description
ST Notification of lapse