CH575200A5 - - Google Patents
Info
- Publication number
- CH575200A5 CH575200A5 CH1045874A CH1045874A CH575200A5 CH 575200 A5 CH575200 A5 CH 575200A5 CH 1045874 A CH1045874 A CH 1045874A CH 1045874 A CH1045874 A CH 1045874A CH 575200 A5 CH575200 A5 CH 575200A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/001—Current supply source at the exchanger providing current to substations
- H04M19/008—Using DC/DC converters
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732347696 DE2347696C3 (en) | 1973-09-21 | 1973-09-21 | Circuit arrangement for feeding subscriber lines in telephone switching systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH575200A5 true CH575200A5 (en) | 1976-04-30 |
Family
ID=5893326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1045874A CH575200A5 (en) | 1973-09-21 | 1974-07-30 |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT343185B (en) |
| CH (1) | CH575200A5 (en) |
| DE (1) | DE2347696C3 (en) |
| DK (1) | DK497474A (en) |
| FI (1) | FI269974A (en) |
| IN (1) | IN140059B (en) |
| IT (1) | IT1021492B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1584778A (en) * | 1976-09-17 | 1981-02-18 | Gen Electric | Telecommunication exchanges |
| NL7802423A (en) * | 1978-03-06 | 1979-09-10 | Philips Nv | POWER SUPPLY FOR A LINE CURRENT. |
| NL7802421A (en) * | 1978-03-06 | 1979-09-10 | Philips Nv | POWER SUPPLY FOR A SUBSCRIPTION LINE CURRENT. |
| US4761812A (en) * | 1985-12-10 | 1988-08-02 | U.S. Holding Company, Inc. | Constant power telephone line circuit |
| US11334762B1 (en) | 2017-09-07 | 2022-05-17 | Aurora Operations, Inc. | Method for image analysis |
-
1973
- 1973-09-21 DE DE19732347696 patent/DE2347696C3/en not_active Expired
-
1974
- 1974-07-30 CH CH1045874A patent/CH575200A5/xx not_active IP Right Cessation
- 1974-08-05 AT AT640274A patent/AT343185B/en active
- 1974-09-16 FI FI269974A patent/FI269974A/fi unknown
- 1974-09-18 IT IT2742174A patent/IT1021492B/en active
- 1974-09-18 IN IN2079/CAL/74A patent/IN140059B/en unknown
- 1974-09-20 DK DK497474A patent/DK497474A/da unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2347696C3 (en) | 1978-12-21 |
| IT1021492B (en) | 1978-01-30 |
| DK497474A (en) | 1975-06-02 |
| ATA640274A (en) | 1977-09-15 |
| IN140059B (en) | 1976-09-04 |
| FI269974A (en) | 1975-03-22 |
| AT343185B (en) | 1978-05-10 |
| DE2347696A1 (en) | 1975-04-03 |
| DE2347696B2 (en) | 1978-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |