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
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)
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)
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)
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 |
-
1979
- 1979-09-17 GB GB7932108A patent/GB2064268B/en not_active Expired
-
1980
- 1980-09-13 DE DE19803034682 patent/DE3034682A1/de not_active Withdrawn
- 1980-09-15 FR FR8019844A patent/FR2465384A1/fr active Granted
- 1980-09-15 US US06/187,114 patent/US4376876A/en not_active Expired - Lifetime
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 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |