BE638919A - - Google Patents
Info
- Publication number
- BE638919A BE638919A BE638919DA BE638919A BE 638919 A BE638919 A BE 638919A BE 638919D A BE638919D A BE 638919DA BE 638919 A BE638919 A BE 638919A
- Authority
- BE
- Belgium
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
- H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
- G08C19/025—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage using fixed values of magnitude of current or voltage
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR950939A FR1372263A (fr) | 1963-10-17 | 1963-10-17 | Perfectionnements aux systèmes de transmission de signalisations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE638919A true BE638919A (pt) |
Family
ID=8814598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE638919D BE638919A (pt) | 1963-10-17 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE638919A (pt) |
| FR (1) | FR1372263A (pt) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2360375C3 (de) * | 1973-12-04 | 1978-05-24 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung zur Bewertung eines Stromes nach Größe und Richtung |
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0
- BE BE638919D patent/BE638919A/xx unknown
-
1963
- 1963-10-17 FR FR950939A patent/FR1372263A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1372263A (fr) | 1964-09-11 |