FR2131038A5 - - Google Patents
Info
- Publication number
- FR2131038A5 FR2131038A5 FR7111113A FR7111113A FR2131038A5 FR 2131038 A5 FR2131038 A5 FR 2131038A5 FR 7111113 A FR7111113 A FR 7111113A FR 7111113 A FR7111113 A FR 7111113A FR 2131038 A5 FR2131038 A5 FR 2131038A5
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7111113A FR2131038A5 (zh) | 1971-03-30 | 1971-03-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7111113A FR2131038A5 (zh) | 1971-03-30 | 1971-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2131038A5 true FR2131038A5 (zh) | 1972-11-10 |
Family
ID=9074401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7111113A Expired FR2131038A5 (zh) | 1971-03-30 | 1971-03-30 |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2131038A5 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2296324A1 (fr) * | 1974-12-27 | 1976-07-23 | Ericsson Telefon Ab L M | Dispositif d'appel perfectionne pour installations de telephonie |
FR2334113A1 (fr) * | 1975-12-03 | 1977-07-01 | Constr Telephoniques | Circuit de detection de courant circulant dans une ligne |
FR2445666A1 (fr) * | 1978-12-30 | 1980-07-25 | Plessey Handel Investment Ag | Circuit de ligne pour reseau de telecommunication assurant l'alimentation en courant des equipements terminaux de dedoublement des lignes a deux fils en lignes a quatre fils |
-
1971
- 1971-03-30 FR FR7111113A patent/FR2131038A5/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2296324A1 (fr) * | 1974-12-27 | 1976-07-23 | Ericsson Telefon Ab L M | Dispositif d'appel perfectionne pour installations de telephonie |
FR2334113A1 (fr) * | 1975-12-03 | 1977-07-01 | Constr Telephoniques | Circuit de detection de courant circulant dans une ligne |
FR2445666A1 (fr) * | 1978-12-30 | 1980-07-25 | Plessey Handel Investment Ag | Circuit de ligne pour reseau de telecommunication assurant l'alimentation en courant des equipements terminaux de dedoublement des lignes a deux fils en lignes a quatre fils |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |