SE373014B - - Google Patents
Info
- Publication number
- SE373014B SE373014B SE7203353A SE335372A SE373014B SE 373014 B SE373014 B SE 373014B SE 7203353 A SE7203353 A SE 7203353A SE 335372 A SE335372 A SE 335372A SE 373014 B SE373014 B SE 373014B
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/06—Current supply arrangements for telephone systems in which current supply sources at subordinate switching centres are charged from the main exchange
-
- 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)
- Control Of Electrical Variables (AREA)
- Direct Current Feeding And Distribution (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA121578 | 1971-08-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
SE373014B true SE373014B (fr) | 1975-01-20 |
Family
ID=4090721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7203353A SE373014B (fr) | 1971-08-27 | 1972-03-15 |
Country Status (9)
Country | Link |
---|---|
US (1) | US3800095A (fr) |
BE (1) | BE782053A (fr) |
CA (1) | CA930488A (fr) |
DE (1) | DE2235498A1 (fr) |
ES (1) | ES400493A1 (fr) |
FR (1) | FR2151799A5 (fr) |
GB (1) | GB1366984A (fr) |
IT (1) | IT953475B (fr) |
SE (1) | SE373014B (fr) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE363948B (fr) * | 1973-03-05 | 1974-02-04 | Ericsson Telefon Ab L M | |
NL7402575A (nl) * | 1974-02-26 | 1975-08-28 | Philips Nv | Elektronisch telefoontoestel. |
CA1032221A (fr) * | 1974-06-14 | 1978-05-30 | Mitel Canada Limited | Regulateur d'impedance de ligne telephonique |
NL174420C (nl) * | 1975-06-30 | 1984-06-01 | Philips Nv | Beveiligingsinrichting voor een telefoontoestel. |
US4049929A (en) * | 1976-12-16 | 1977-09-20 | Gte Lenkurt Electric (Canada) Ltd. | Apparatus for reducing the susceptibility of line signal repeaters to induced currents |
JPS596549B2 (ja) * | 1979-07-03 | 1984-02-13 | 日本電信電話株式会社 | 電話機用3端子電源回路 |
DE2931456C2 (de) * | 1979-08-02 | 1982-10-28 | Siemens AG, 1000 Berlin und 8000 München | Parallelregelschaltung |
US4268723A (en) * | 1979-09-04 | 1981-05-19 | Western Electric Company | Circuits and methods for initializing the loop current of a telephone set |
GB2064268B (en) * | 1979-09-17 | 1983-10-26 | Philips Nv | Electronic signalling device for connection to a signal transmission line |
FR2466152A1 (fr) * | 1979-09-20 | 1981-03-27 | Int Standard Electric Corp | Dispositif d'alimentation d'un appareil telephonique comportant des circuits electroniques annexes, a partir de la ligne telephonique |
DE3007549A1 (de) * | 1980-02-28 | 1981-09-10 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Anordnung zur speisung einer teilnehmereinrichtung |
NL8103419A (nl) * | 1981-04-01 | 1982-11-01 | Philips Nv | Lijntestcircuit voor een abonneetelefoontoestel. |
FR2517150A1 (fr) * | 1981-11-20 | 1983-05-27 | Thomson Csf Mat Tel | Circuit telephonique gere par microprocesseur a circuit integre de transmission 2 fils-4 fils et alimentation de sauvegarde par courant de ligne |
US5125077A (en) * | 1983-11-02 | 1992-06-23 | Microsoft Corporation | Method of formatting data from a mouse |
US5381472A (en) * | 1990-08-10 | 1995-01-10 | Tamura Electric Works, Ltd. | Power source control apparatus for telephone set |
US5555586A (en) * | 1995-09-07 | 1996-09-17 | Dorrich; Allen | Self-contained portable golf ball washing unit |
CN101930059B (zh) * | 2009-06-19 | 2014-01-22 | 三星电机株式会社 | 用于电源的交流检测电路 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3035122A (en) * | 1958-09-30 | 1962-05-15 | Gen Dynamics Corp | Constant current line circuitt for loop telephone lines |
US3419789A (en) * | 1966-04-09 | 1968-12-31 | Forbro Design Corp | High precision dc voltage regulator |
US3462643A (en) * | 1967-03-31 | 1969-08-19 | Rca Corp | Switching type voltage and current regulator and which can include voltage doubling means for a load |
US3513378A (en) * | 1967-10-30 | 1970-05-19 | Collins Radio Co | Low source impedance voltage regulator |
US3524124A (en) * | 1968-12-26 | 1970-08-11 | Hewlett Packard Co | Output voltage limiting circuit for a constant current power supply |
FR2038463A5 (fr) * | 1969-03-12 | 1971-01-08 | Person Jean | |
US3605007A (en) * | 1969-08-05 | 1971-09-14 | Us Navy | Dc power supply regulated by a shunt transistor whose bias voltage is varied by transistor means to stabilize load voltage |
-
1971
- 1971-08-27 CA CA930488A patent/CA930488A/en not_active Expired
-
1972
- 1972-01-26 GB GB356472A patent/GB1366984A/en not_active Expired
- 1972-03-07 ES ES400493A patent/ES400493A1/es not_active Expired
- 1972-03-09 IT IT21623/72A patent/IT953475B/it active
- 1972-03-15 SE SE7203353A patent/SE373014B/xx unknown
- 1972-03-20 FR FR7209650A patent/FR2151799A5/fr not_active Expired
- 1972-04-13 BE BE782053A patent/BE782053A/fr unknown
- 1972-07-20 DE DE2235498A patent/DE2235498A1/de active Pending
-
1973
- 1973-02-23 US US00335038A patent/US3800095A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
IT953475B (it) | 1973-08-10 |
CA930488A (en) | 1973-07-17 |
BE782053A (fr) | 1972-10-13 |
ES400493A1 (es) | 1975-07-01 |
GB1366984A (en) | 1974-09-18 |
FR2151799A5 (fr) | 1973-04-20 |
US3800095A (en) | 1974-03-26 |
DE2235498A1 (de) | 1973-03-22 |