FR2220939A1 - - Google Patents
Info
- Publication number
- FR2220939A1 FR2220939A1 FR7407508A FR7407508A FR2220939A1 FR 2220939 A1 FR2220939 A1 FR 2220939A1 FR 7407508 A FR7407508 A FR 7407508A FR 7407508 A FR7407508 A FR 7407508A FR 2220939 A1 FR2220939 A1 FR 2220939A1
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/12—Compensating for variations in line impedance
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2310940A DE2310940C3 (de) | 1973-03-05 | 1973-03-05 | Schaltungsanordnung zum Anschließen von Telegrafieteilnehmern an Wechselstrom-Übertragungseinrichtungen und Vermittlungsanlagen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2220939A1 true FR2220939A1 (xx) | 1974-10-04 |
| FR2220939B1 FR2220939B1 (xx) | 1977-09-23 |
Family
ID=5873867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7407508A Expired FR2220939B1 (xx) | 1973-03-05 | 1974-03-05 |
Country Status (12)
| Country | Link |
|---|---|
| AT (1) | AT342120B (xx) |
| BE (1) | BE811886A (xx) |
| BR (1) | BR7401553D0 (xx) |
| CH (1) | CH586981A5 (xx) |
| DE (1) | DE2310940C3 (xx) |
| FI (1) | FI60330C (xx) |
| FR (1) | FR2220939B1 (xx) |
| GB (1) | GB1452158A (xx) |
| IT (1) | IT1011028B (xx) |
| LU (1) | LU69544A1 (xx) |
| NL (1) | NL7402912A (xx) |
| NO (1) | NO140318C (xx) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7704703A (nl) * | 1977-04-29 | 1978-10-31 | Philips Nv | Electronische gelijkstroomtelegrafiezender. |
| DE2833732C2 (de) * | 1978-08-01 | 1981-12-03 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung zur Aussendung von Gleichstromtelegrafiezeichen |
| NL181896C (nl) * | 1979-06-05 | 1987-11-16 | Philips Nv | Elektronische zender voor gelijkstroomtelegrafietransmissie. |
| DE2925747C2 (de) * | 1979-06-26 | 1981-07-30 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung für einen elektronischen Gleichstrom-Telegrafiesender |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2035379A1 (de) * | 1970-07-16 | 1972-01-20 | Siemens Ag | Schaltungsanordnung zum Einstellen des Linienstromes in Telegrafieteilnehmer Anschlußschaltungen einer Vermittlungsan lage |
| DE2234501A1 (de) * | 1971-07-16 | 1973-01-25 | Int Standard Electric Corp | Schaltungsanordnung fuer ein elektronisches telegrafenrelais |
| FR2184091A1 (xx) * | 1972-05-11 | 1973-12-21 | Elliott Bros |
-
1973
- 1973-03-05 DE DE2310940A patent/DE2310940C3/de not_active Expired
-
1974
- 1974-01-30 AT AT74774A patent/AT342120B/de not_active IP Right Cessation
- 1974-02-08 NO NO740433A patent/NO140318C/no unknown
- 1974-02-14 GB GB681374A patent/GB1452158A/en not_active Expired
- 1974-02-14 FI FI425/74A patent/FI60330C/fi active
- 1974-02-15 CH CH214274A patent/CH586981A5/xx not_active IP Right Cessation
- 1974-03-04 BR BR1553/74A patent/BR7401553D0/pt unknown
- 1974-03-04 LU LU69544A patent/LU69544A1/xx unknown
- 1974-03-04 NL NL7402912A patent/NL7402912A/xx not_active Application Discontinuation
- 1974-03-05 BE BE141654A patent/BE811886A/xx unknown
- 1974-03-05 FR FR7407508A patent/FR2220939B1/fr not_active Expired
- 1974-03-05 IT IT49008/74A patent/IT1011028B/it active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2035379A1 (de) * | 1970-07-16 | 1972-01-20 | Siemens Ag | Schaltungsanordnung zum Einstellen des Linienstromes in Telegrafieteilnehmer Anschlußschaltungen einer Vermittlungsan lage |
| DE2234501A1 (de) * | 1971-07-16 | 1973-01-25 | Int Standard Electric Corp | Schaltungsanordnung fuer ein elektronisches telegrafenrelais |
| FR2184091A1 (xx) * | 1972-05-11 | 1973-12-21 | Elliott Bros |
Non-Patent Citations (1)
| Title |
|---|
| Revue DE: 'Nachrichtentechnik-Elektronik', volume 23, no. 10, 1973, pages 366 - 370, HOPFER: 'Zu Problemen der digitalen Basisbandübertragung von Datensignalen' * |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1011028B (it) | 1977-01-20 |
| LU69544A1 (xx) | 1974-10-09 |
| DE2310940B2 (de) | 1978-08-10 |
| NO140318B (no) | 1979-04-30 |
| BE811886A (fr) | 1974-09-05 |
| CH586981A5 (xx) | 1977-04-15 |
| FR2220939B1 (xx) | 1977-09-23 |
| FI60330C (fi) | 1981-12-10 |
| NO740433L (no) | 1974-09-06 |
| ATA74774A (de) | 1977-07-15 |
| DE2310940C3 (de) | 1979-05-03 |
| BR7401553D0 (pt) | 1974-11-19 |
| FI60330B (fi) | 1981-08-31 |
| GB1452158A (en) | 1976-10-13 |
| NL7402912A (xx) | 1974-09-09 |
| NO140318C (no) | 1979-08-08 |
| DE2310940A1 (de) | 1974-09-19 |
| AT342120B (de) | 1978-03-10 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |