BE524309A - - Google Patents
Info
- Publication number
- BE524309A BE524309A BE524309DA BE524309A BE 524309 A BE524309 A BE 524309A BE 524309D A BE524309D A BE 524309DA BE 524309 A BE524309 A BE 524309A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
- H04B17/401—Monitoring; Testing of relay systems with selective localization
- H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
- H04B17/403—Monitoring; Testing of relay systems with selective localization using different frequencies generated by local oscillators
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL316566X | 1952-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE524309A true BE524309A (cs) | 1900-01-01 |
Family
ID=19783821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE524309D BE524309A (cs) | 1952-11-17 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2784264A (cs) |
| BE (1) | BE524309A (cs) |
| CH (1) | CH316566A (cs) |
| DE (1) | DE1064999B (cs) |
| NL (2) | NL173885B (cs) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1220297A (fr) * | 1958-02-18 | 1960-05-24 | Gen Electric Co Ltd | Installation de télécommunication |
| US3192506A (en) * | 1960-03-04 | 1965-06-29 | Sargrove Electronics Ltd | Electronic indicator system more particularly for use in mines |
| US3059068A (en) * | 1960-06-27 | 1962-10-16 | Int Standard Electric Corp | Carrier current communication systems incorporating repeaters |
| NL255978A (cs) * | 1960-09-17 | |||
| US3617657A (en) * | 1969-08-25 | 1971-11-02 | Bell Telephone Labor Inc | Repeater monitoring system |
| FR2346913A2 (fr) * | 1976-03-30 | 1977-10-28 | Cit Alcatel | Telealimentation d'une ligne de transmission par cables avec repeteurs soumise a l'influence de champs electriques externes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE497204C (de) * | 1925-01-01 | 1930-05-03 | Telefunken Gmbh | Anordnung zum Fernanzeigen von veraenderlichen physikalischen Groessen, wie z. B. elektrischen Spannungen, Stroemen, Leistungen, Umdrehungsgeschwindig-keiten, Drucken, Temperaturen u. dgl., mittels hochfrequenter Schwingungen |
-
0
- NL NL90601D patent/NL90601C/xx active
- BE BE524309D patent/BE524309A/xx unknown
- NL NLAANVRAGE7300127,A patent/NL173885B/xx unknown
-
1953
- 1953-11-14 DE DEN8031A patent/DE1064999B/de active Pending
- 1953-11-16 CH CH316566D patent/CH316566A/de unknown
- 1953-11-16 US US392450A patent/US2784264A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CH316566A (de) | 1956-10-15 |
| US2784264A (en) | 1957-03-05 |
| NL173885B (nl) | |
| NL90601C (cs) | 1900-01-01 |
| DE1064999B (de) | 1959-09-10 |