FR962322A - - Google Patents
Info
- Publication number
- FR962322A FR962322A FR962322DA FR962322A FR 962322 A FR962322 A FR 962322A FR 962322D A FR962322D A FR 962322DA FR 962322 A FR962322 A FR 962322A
- 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
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
- H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR660686X | 1948-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR962322A true FR962322A (en:Method) | 1950-06-07 |
Family
ID=9010404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR962322D Expired FR962322A (en:Method) | 1948-02-06 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR962322A (en:Method) |
| GB (1) | GB660686A (en:Method) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE939820C (de) * | 1952-05-06 | 1956-03-01 | Siemens Ag | Schaltungsanordnung zum Empfang von Spannungen einer oder mehrerer Signalfrequenzen |
| DE958570C (de) * | 1952-11-03 | 1957-02-21 | Standard Elek K Ag | Empfangskanalverstaerker und Signalempfaenger mit gemeinsamer Verstaerkung der Signalfrequenz und des Sprachbandes |
| DE973493C (de) * | 1950-09-28 | 1960-03-10 | Philips Nv | Einseitenbandtraegerfrequenzfernsprechsystem |
-
0
- FR FR962322D patent/FR962322A/fr not_active Expired
-
1949
- 1949-01-28 GB GB2494/49A patent/GB660686A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE973493C (de) * | 1950-09-28 | 1960-03-10 | Philips Nv | Einseitenbandtraegerfrequenzfernsprechsystem |
| DE939820C (de) * | 1952-05-06 | 1956-03-01 | Siemens Ag | Schaltungsanordnung zum Empfang von Spannungen einer oder mehrerer Signalfrequenzen |
| DE958570C (de) * | 1952-11-03 | 1957-02-21 | Standard Elek K Ag | Empfangskanalverstaerker und Signalempfaenger mit gemeinsamer Verstaerkung der Signalfrequenz und des Sprachbandes |
Also Published As
| Publication number | Publication date |
|---|---|
| GB660686A (en) | 1951-11-14 |