FR2295666A1 - Central de commutation telephonique - Google Patents
Central de commutation telephoniqueInfo
- Publication number
- FR2295666A1 FR2295666A1 FR7442223A FR7442223A FR2295666A1 FR 2295666 A1 FR2295666 A1 FR 2295666A1 FR 7442223 A FR7442223 A FR 7442223A FR 7442223 A FR7442223 A FR 7442223A FR 2295666 A1 FR2295666 A1 FR 2295666A1
- Authority
- FR
- France
- Prior art keywords
- switching unit
- telephone communication
- communication exchange
- holograms
- panel
- 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.)
- Granted
Links
- 239000011159 matrix material Substances 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
- H04Q3/526—Optical switching systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Optical Communication System (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7442223A FR2295666A1 (fr) | 1974-12-20 | 1974-12-20 | Central de commutation telephonique |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7442223A FR2295666A1 (fr) | 1974-12-20 | 1974-12-20 | Central de commutation telephonique |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2295666A1 true FR2295666A1 (fr) | 1976-07-16 |
FR2295666B1 FR2295666B1 (enrdf_load_stackoverflow) | 1977-05-20 |
Family
ID=9146452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7442223A Granted FR2295666A1 (fr) | 1974-12-20 | 1974-12-20 | Central de commutation telephonique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2295666A1 (enrdf_load_stackoverflow) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0005114A1 (fr) * | 1978-04-21 | 1979-10-31 | Michel Emile Treheux | Système de commutation spatiale et de commande d'un réseau de commutation de signaux à fréquences optiques |
WO1980001028A1 (fr) * | 1978-11-08 | 1980-05-15 | Rozenwaig Boris | Dispositif de commutation de signaux par des moyens optiques et autocommutateurs comportant ce dispositif |
US4512036A (en) * | 1980-02-04 | 1985-04-16 | Herzl Laor | Piezoelectric apparatus for positioning optical fibers |
WO1985004544A1 (en) * | 1984-03-22 | 1985-10-10 | Fraunhofer-Gesellschaft Zur Förderung Der Angewand | Arrangement for transferring digital data |
US4641376A (en) * | 1982-04-30 | 1987-02-03 | Boris Rozenwaig | Multi-channel multi-cell optoelectronic switching networks for multi-service telecommunications systems |
EP0304043A3 (en) * | 1987-08-19 | 1990-06-27 | Canon Kabushiki Kaisha | Optical switch array provided with a mask having openings of a predetermined pattern and shutters corresponding to the pattern |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2146635A5 (enrdf_load_stackoverflow) * | 1971-07-21 | 1973-03-02 | Comp Generale Electricite | |
FR2171241A1 (enrdf_load_stackoverflow) * | 1972-02-09 | 1973-09-21 | Philips Nv |
-
1974
- 1974-12-20 FR FR7442223A patent/FR2295666A1/fr active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2146635A5 (enrdf_load_stackoverflow) * | 1971-07-21 | 1973-03-02 | Comp Generale Electricite | |
FR2171241A1 (enrdf_load_stackoverflow) * | 1972-02-09 | 1973-09-21 | Philips Nv |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0005114A1 (fr) * | 1978-04-21 | 1979-10-31 | Michel Emile Treheux | Système de commutation spatiale et de commande d'un réseau de commutation de signaux à fréquences optiques |
FR2423941A1 (fr) * | 1978-04-21 | 1979-11-16 | Treheux Michel | Systeme de commutation spatiale et de commande d'un reseau de commutation de signaux a frequences optiques |
WO1980001028A1 (fr) * | 1978-11-08 | 1980-05-15 | Rozenwaig Boris | Dispositif de commutation de signaux par des moyens optiques et autocommutateurs comportant ce dispositif |
US4512036A (en) * | 1980-02-04 | 1985-04-16 | Herzl Laor | Piezoelectric apparatus for positioning optical fibers |
US4543663A (en) * | 1980-02-04 | 1985-09-24 | Herzl Laor | Piezoelectric apparatus for positioning optical fibers |
US4580292A (en) * | 1980-02-04 | 1986-04-01 | Herzl Laor | Communications exchange |
US4651343A (en) * | 1980-02-04 | 1987-03-17 | Herzl Laor | Piezoelectric apparatus for positioning optical fibers |
US4641376A (en) * | 1982-04-30 | 1987-02-03 | Boris Rozenwaig | Multi-channel multi-cell optoelectronic switching networks for multi-service telecommunications systems |
WO1985004544A1 (en) * | 1984-03-22 | 1985-10-10 | Fraunhofer-Gesellschaft Zur Förderung Der Angewand | Arrangement for transferring digital data |
EP0304043A3 (en) * | 1987-08-19 | 1990-06-27 | Canon Kabushiki Kaisha | Optical switch array provided with a mask having openings of a predetermined pattern and shutters corresponding to the pattern |
Also Published As
Publication number | Publication date |
---|---|
FR2295666B1 (enrdf_load_stackoverflow) | 1977-05-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |