FR2167933B3 - - Google Patents
Info
- Publication number
- FR2167933B3 FR2167933B3 FR7300840A FR7300840A FR2167933B3 FR 2167933 B3 FR2167933 B3 FR 2167933B3 FR 7300840 A FR7300840 A FR 7300840A FR 7300840 A FR7300840 A FR 7300840A FR 2167933 B3 FR2167933 B3 FR 2167933B3
- 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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Devices For Supply Of Signal Current (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB144372 | 1972-01-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2167933A1 FR2167933A1 (en, 2012) | 1973-08-24 |
| FR2167933B3 true FR2167933B3 (en, 2012) | 1976-01-09 |
Family
ID=9722099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7300840A Expired FR2167933B3 (en, 2012) | 1972-01-12 | 1973-01-11 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2300929A1 (en, 2012) |
| FR (1) | FR2167933B3 (en, 2012) |
| GB (1) | GB1350015A (en, 2012) |
| ZA (1) | ZA728265B (en, 2012) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4064366A (en) * | 1976-01-15 | 1977-12-20 | Winster Engineering Group Limited | Intrinsically safe telephone systems |
| DE3344008C1 (de) * | 1983-12-06 | 1985-06-20 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Schaltungsanordnung zur Speisung von Einrichtungen eines Endgeräts einer Fernmeldevermittlungsanlage |
| DE3531556A1 (de) * | 1985-09-04 | 1987-03-05 | Telefonbau & Normalzeit Gmbh | Schaltungsanordnung fuer einen fernsprechapparat mit einer digitaluhr |
| DE3543797A1 (de) * | 1985-09-13 | 1987-03-26 | Telefonbau & Normalzeit Gmbh | Schaltungsanordnung zur leitungsspeisung von zusatzeinrichtungen eines fernsprechapparates |
| DE3711897A1 (de) * | 1987-04-08 | 1988-10-20 | Telefonbau & Normalzeit Gmbh | Schaltungsanordnung fuer eine fernsprechteilnehmerstation mit einer lauthoer- bzw. freisprecheinrichtung |
| DE19740334C2 (de) * | 1997-09-13 | 1999-09-30 | Deutsche Telekom Ag | Schaltungsanordnung zur Leitungsspeisung von Telekommunikationsendgeräten |
-
1972
- 1972-01-12 GB GB144372A patent/GB1350015A/en not_active Expired
- 1972-11-22 ZA ZA728265A patent/ZA728265B/xx unknown
-
1973
- 1973-01-09 DE DE2300929A patent/DE2300929A1/de active Pending
- 1973-01-11 FR FR7300840A patent/FR2167933B3/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2300929A1 (de) | 1973-07-19 |
| ZA728265B (en) | 1973-07-25 |
| GB1350015A (en) | 1974-04-18 |
| FR2167933A1 (en, 2012) | 1973-08-24 |