FR2224958A1 - - Google Patents
Info
- Publication number
- FR2224958A1 FR2224958A1 FR7411665A FR7411665A FR2224958A1 FR 2224958 A1 FR2224958 A1 FR 2224958A1 FR 7411665 A FR7411665 A FR 7411665A FR 7411665 A FR7411665 A FR 7411665A FR 2224958 A1 FR2224958 A1 FR 2224958A1
- 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
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
- H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
- H04M9/007—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line wherein the key telephone sets are star-connected to a central unit by a limited number of lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1601673A GB1437031A (en) | 1973-04-04 | 1973-04-04 | House exchange telephone system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2224958A1 true FR2224958A1 (enrdf_load_html_response) | 1974-10-31 |
| FR2224958B1 FR2224958B1 (enrdf_load_html_response) | 1981-04-30 |
Family
ID=10069655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7411665A Expired FR2224958B1 (enrdf_load_html_response) | 1973-04-04 | 1974-04-02 |
Country Status (8)
| Country | Link |
|---|---|
| DE (1) | DE2416122A1 (enrdf_load_html_response) |
| FR (1) | FR2224958B1 (enrdf_load_html_response) |
| GB (1) | GB1437031A (enrdf_load_html_response) |
| HK (1) | HK49177A (enrdf_load_html_response) |
| IT (1) | IT1010893B (enrdf_load_html_response) |
| KE (1) | KE2768A (enrdf_load_html_response) |
| MY (1) | MY7800011A (enrdf_load_html_response) |
| ZA (1) | ZA741829B (enrdf_load_html_response) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0061524A1 (de) * | 1981-03-31 | 1982-10-06 | Siemens Aktiengesellschaft | Verfahren zur wechselseitigen Übertragung von binären Daten-signalen über eine beidseitig mit einem Übertrager abgeschlossene Signalleitung |
| EP0170423A1 (en) * | 1984-07-05 | 1986-02-05 | Honeywell Inc. | Fail-safe digital phone |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1595301A (en) * | 1976-12-10 | 1981-08-12 | Plessey Canada | Electronic telephone system |
| FR2518858A1 (fr) * | 1981-12-23 | 1983-06-24 | Jeumont Schneider | Dispositif de transmission de signaux sur une ligne assurant egalement une alimentation en tension continue |
| SE435123B (sv) * | 1983-01-19 | 1984-09-03 | Ellemtel Utvecklings Ab | Telekommunikationsterminal |
| US4739205A (en) * | 1986-02-24 | 1988-04-19 | Rockwell International Corporation | Telephone signal multiplexing system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3519757A (en) * | 1968-02-27 | 1970-07-07 | Bell Telephone Labor Inc | Electronic key telephone system |
| US3549820A (en) * | 1968-05-02 | 1970-12-22 | Bell Telephone Labor Inc | Key telephone station concentrator |
| US3604857A (en) * | 1969-07-25 | 1971-09-14 | Bell Telephone Labor Inc | Line-oriented key telephone system |
-
1973
- 1973-04-04 GB GB1601673A patent/GB1437031A/en not_active Expired
-
1974
- 1974-03-20 ZA ZA00741829A patent/ZA741829B/xx unknown
- 1974-04-02 FR FR7411665A patent/FR2224958B1/fr not_active Expired
- 1974-04-03 IT IT42622/74A patent/IT1010893B/it active
- 1974-04-03 DE DE2416122A patent/DE2416122A1/de active Granted
-
1977
- 1977-09-01 KE KE2768A patent/KE2768A/xx unknown
- 1977-09-22 HK HK491/77A patent/HK49177A/xx unknown
-
1978
- 1978-12-31 MY MY197811A patent/MY7800011A/xx unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0061524A1 (de) * | 1981-03-31 | 1982-10-06 | Siemens Aktiengesellschaft | Verfahren zur wechselseitigen Übertragung von binären Daten-signalen über eine beidseitig mit einem Übertrager abgeschlossene Signalleitung |
| EP0170423A1 (en) * | 1984-07-05 | 1986-02-05 | Honeywell Inc. | Fail-safe digital phone |
Also Published As
| Publication number | Publication date |
|---|---|
| AU6734274A (en) | 1975-10-02 |
| KE2768A (en) | 1977-10-21 |
| IT1010893B (it) | 1977-01-20 |
| DE2416122A1 (de) | 1974-10-24 |
| ZA741829B (en) | 1975-03-26 |
| HK49177A (en) | 1977-09-30 |
| DE2416122C2 (enrdf_load_html_response) | 1987-08-13 |
| FR2224958B1 (enrdf_load_html_response) | 1981-04-30 |
| MY7800011A (en) | 1978-12-31 |
| GB1437031A (en) | 1976-05-26 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property | ||
| ST | Notification of lapse |