DE2757437C2 - Schaltungsanordnung zur Übertragung eines Klingelsignals - Google Patents
Schaltungsanordnung zur Übertragung eines KlingelsignalsInfo
- Publication number
- DE2757437C2 DE2757437C2 DE2757437A DE2757437A DE2757437C2 DE 2757437 C2 DE2757437 C2 DE 2757437C2 DE 2757437 A DE2757437 A DE 2757437A DE 2757437 A DE2757437 A DE 2757437A DE 2757437 C2 DE2757437 C2 DE 2757437C2
- Authority
- DE
- Germany
- Prior art keywords
- signal
- frequency
- circuit arrangement
- carrier
- subscriber
- Prior art date
- 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
- 230000005540 biological transmission Effects 0.000 title claims description 20
- 230000010355 oscillation Effects 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 2
- 230000005693 optoelectronics Effects 0.000 claims description 2
- 239000004020 conductor Substances 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 10
- 230000000903 blocking effect Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 230000008054 signal transmission Effects 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000033764 rhythmic process Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/14—Arrangements providing for calling or supervisory signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
- H04Q5/245—Circuit arrangements in which for one subscriber low frequency speech and/or signalling signals proceed on the line, while for the other subscriber the low frequency speech and/or signalling signals are modulated upon a high frequency carrier signal
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Telephonic Communication Services (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7639412A FR2408956A1 (fr) | 1976-12-29 | 1976-12-29 | Dispositif pour l'emission d'un signal basse frequence de tension elevee par l'intermediaire d'une liaison a courants porteurs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2757437A1 DE2757437A1 (de) | 1978-07-06 |
| DE2757437C2 true DE2757437C2 (de) | 1986-12-11 |
Family
ID=9181669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2757437A Expired DE2757437C2 (de) | 1976-12-29 | 1977-12-22 | Schaltungsanordnung zur Übertragung eines Klingelsignals |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4197433A (enExample) |
| BE (1) | BE861736A (enExample) |
| CA (1) | CA1076724A (enExample) |
| DE (1) | DE2757437C2 (enExample) |
| FR (1) | FR2408956A1 (enExample) |
| GB (1) | GB1526619A (enExample) |
| IE (1) | IE45880B1 (enExample) |
| IT (1) | IT1088940B (enExample) |
| LU (1) | LU78745A1 (enExample) |
| NL (1) | NL7714452A (enExample) |
| ZA (1) | ZA774771B (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4361731A (en) * | 1981-02-13 | 1982-11-30 | Bell Telephone Laboratories, Incorporated | Coin telephone control circuit |
| ATE421841T1 (de) * | 1999-11-19 | 2009-02-15 | Alcatel Lucent | Telefonsystem, zentrale vermittlungsstelle und trennvorrichtung für analoge telefonsignalen und digitale datensignalen |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2837605A (en) * | 1955-02-28 | 1958-06-03 | Bell Telephone Labor Inc | Subscriber-loop carrier telephone ringing systems |
| US3886321A (en) * | 1973-11-05 | 1975-05-27 | Seismograph Service Corp | Ringing generator for telephone station terminal |
| US3927266A (en) * | 1974-01-16 | 1975-12-16 | Gte Automatic Electric Lab Inc | Ringer power generator circuit for subscriber carrier station terminal |
-
1976
- 1976-12-29 FR FR7639412A patent/FR2408956A1/fr active Granted
-
1977
- 1977-08-08 GB GB33102/77A patent/GB1526619A/en not_active Expired
- 1977-08-08 ZA ZA00774771A patent/ZA774771B/xx unknown
- 1977-12-12 BE BE1008578A patent/BE861736A/xx not_active IP Right Cessation
- 1977-12-22 DE DE2757437A patent/DE2757437C2/de not_active Expired
- 1977-12-22 LU LU78745A patent/LU78745A1/xx unknown
- 1977-12-23 IT IT31258/77A patent/IT1088940B/it active
- 1977-12-27 NL NL7714452A patent/NL7714452A/xx not_active Application Discontinuation
- 1977-12-28 CA CA293,958A patent/CA1076724A/fr not_active Expired
- 1977-12-29 IE IE2637/77A patent/IE45880B1/en unknown
- 1977-12-29 US US05/865,554 patent/US4197433A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| IE45880L (en) | 1978-06-29 |
| IT1088940B (it) | 1985-06-10 |
| FR2408956B1 (enExample) | 1980-04-25 |
| CA1076724A (fr) | 1980-04-29 |
| LU78745A1 (enExample) | 1978-07-14 |
| NL7714452A (nl) | 1978-07-03 |
| GB1526619A (en) | 1978-09-27 |
| FR2408956A1 (fr) | 1979-06-08 |
| IE45880B1 (en) | 1982-12-15 |
| ZA774771B (en) | 1978-06-28 |
| BE861736A (fr) | 1978-06-12 |
| US4197433A (en) | 1980-04-08 |
| DE2757437A1 (de) | 1978-07-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |