NL7012634A - - Google Patents
Info
- Publication number
- NL7012634A NL7012634A NL7012634A NL7012634A NL7012634A NL 7012634 A NL7012634 A NL 7012634A NL 7012634 A NL7012634 A NL 7012634A NL 7012634 A NL7012634 A NL 7012634A NL 7012634 A NL7012634 A NL 7012634A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE13062/69A SE332014B (xx) | 1969-09-23 | 1969-09-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7012634A true NL7012634A (xx) | 1971-03-25 |
Family
ID=20296754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7012634A NL7012634A (xx) | 1969-09-23 | 1970-08-26 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3683118A (xx) |
| BE (1) | BE756517A (xx) |
| DE (1) | DE2046669A1 (xx) |
| DK (1) | DK122150B (xx) |
| FR (1) | FR2062509A5 (xx) |
| GB (1) | GB1310820A (xx) |
| NL (1) | NL7012634A (xx) |
| SE (1) | SE332014B (xx) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2138548B1 (xx) * | 1971-05-19 | 1973-05-25 | Ibm France | |
| FR2172537A5 (xx) * | 1972-02-17 | 1973-09-28 | Constr Telephoniques | |
| US3749846A (en) * | 1972-06-08 | 1973-07-31 | Gte Automatic Electric Lab Inc | Ring trip circuit |
| US3919492A (en) * | 1973-08-29 | 1975-11-11 | Basic Inc | Solid state interrupter |
| US3953683A (en) * | 1974-10-29 | 1976-04-27 | San/Bar Corporation | Interrupter for telephone systems |
| NL7802423A (nl) * | 1978-03-06 | 1979-09-10 | Philips Nv | Voedingsinrichting voor een lijnstroomloop. |
| US4955053A (en) * | 1990-03-16 | 1990-09-04 | Reliance Comm/Tec Corporation | Solid state ringing switch |
| US6115469A (en) * | 1998-08-25 | 2000-09-05 | Unitrode Corporation | Telephone line ring signal and DC power generator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3536852A (en) * | 1969-01-23 | 1970-10-27 | Lorain Prod Corp | Telephone interruption switching circuitry |
-
0
- BE BE756517D patent/BE756517A/xx unknown
-
1969
- 1969-09-23 SE SE13062/69A patent/SE332014B/xx unknown
-
1970
- 1970-03-11 GB GB1169670*[A patent/GB1310820A/en not_active Expired
- 1970-08-26 NL NL7012634A patent/NL7012634A/xx unknown
- 1970-08-26 US US67156A patent/US3683118A/en not_active Expired - Lifetime
- 1970-09-14 DE DE19702046669 patent/DE2046669A1/de active Pending
- 1970-09-22 DK DK485370AA patent/DK122150B/da unknown
- 1970-09-22 FR FR7034331A patent/FR2062509A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2062509A5 (xx) | 1971-06-25 |
| BE756517A (fr) | 1971-03-01 |
| SE332014B (xx) | 1971-01-25 |
| US3683118A (en) | 1972-08-08 |
| DE2046669A1 (de) | 1971-04-15 |
| DK122150B (da) | 1972-01-24 |
| GB1310820A (en) | 1973-03-21 |