FR2334113B1 - - Google Patents
Info
- Publication number
- FR2334113B1 FR2334113B1 FR7536924A FR7536924A FR2334113B1 FR 2334113 B1 FR2334113 B1 FR 2334113B1 FR 7536924 A FR7536924 A FR 7536924A FR 7536924 A FR7536924 A FR 7536924A FR 2334113 B1 FR2334113 B1 FR 2334113B1
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/14—Indicating direction of current; Indicating polarity of voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
- G01R19/15—Indicating the presence of current
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Measurement Of Current Or Voltage (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7536924A FR2334113A1 (fr) | 1975-12-03 | 1975-12-03 | Circuit de detection de courant circulant dans une ligne |
| GB4918476A GB1516049A (en) | 1975-12-03 | 1976-11-25 | Line current detention circuit |
| BE2055500A BE848968R (fr) | 1975-12-03 | 1976-12-02 | Detecteur d'etat de boucle par ligne telephonique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7536924A FR2334113A1 (fr) | 1975-12-03 | 1975-12-03 | Circuit de detection de courant circulant dans une ligne |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2334113A1 FR2334113A1 (fr) | 1977-07-01 |
| FR2334113B1 true FR2334113B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-05-23 |
Family
ID=9163243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7536924A Granted FR2334113A1 (fr) | 1975-12-03 | 1975-12-03 | Circuit de detection de courant circulant dans une ligne |
Country Status (3)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2516660A1 (fr) * | 1981-11-17 | 1983-05-20 | Telemecanique Electrique | Dispositif de detection du courant dans un circuit de puissance ayant une charge variable, utilisant une diode electroluminescente associee a un photorecepteur |
| JPS60518A (ja) * | 1983-06-16 | 1985-01-05 | Hayashibara Takeshi | ダイオ−ド非直線部の降下電圧応動装置 |
| FR2557412B1 (fr) * | 1983-12-23 | 1990-07-27 | Cit Alcatel | Dispositif d'essais de joncteurs d'abonnes deux fils |
| DE10219056A1 (de) * | 2002-04-24 | 2003-11-13 | Demag Cranes & Components Gmbh | Bustreiber für bidirektionale Zweidrahtbussysteme |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2131038A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1971-03-30 | 1972-11-10 | Ass Ouvriers Instr Preci | |
| GB1414459A (en) * | 1972-01-12 | 1975-11-19 | Standard Telephones Cables Ltd | Electronic relay |
| US3898389A (en) * | 1972-10-18 | 1975-08-05 | Communic Mfg | Voltage and/or current-sensitive loop extender |
| DE2345880B1 (de) * | 1973-09-12 | 1975-01-09 | Telefonbau & Normalzeit Gmbh | Schaltungsanordnung zum Erfassen von Schleifenzustaenden |
-
1975
- 1975-12-03 FR FR7536924A patent/FR2334113A1/fr active Granted
-
1976
- 1976-11-25 GB GB4918476A patent/GB1516049A/en not_active Expired
- 1976-12-02 BE BE2055500A patent/BE848968R/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| FR2334113A1 (fr) | 1977-07-01 |
| GB1516049A (en) | 1978-06-28 |
| BE848968R (fr) | 1977-06-02 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property |