GB286607A - Arrangement for detecting the direction of propagation of a current, particularly applicable to switching in telephone installations - Google Patents
Arrangement for detecting the direction of propagation of a current, particularly applicable to switching in telephone installationsInfo
- Publication number
- GB286607A GB286607A GB6798/28A GB679828A GB286607A GB 286607 A GB286607 A GB 286607A GB 6798/28 A GB6798/28 A GB 6798/28A GB 679828 A GB679828 A GB 679828A GB 286607 A GB286607 A GB 286607A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- line
- amplifier
- subscriber
- network
- Prior art date
- 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
- 238000009434 installation Methods 0.000 title 1
- 230000003111 delayed effect Effects 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/36—Repeater circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR630912T | 1927-03-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB286607A true GB286607A (en) | 1929-01-10 |
Family
ID=8991409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6798/28A Expired GB286607A (en) | 1927-03-05 | 1928-03-05 | Arrangement for detecting the direction of propagation of a current, particularly applicable to switching in telephone installations |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE349376A (enrdf_load_stackoverflow) |
FR (1) | FR630912A (enrdf_load_stackoverflow) |
GB (1) | GB286607A (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE748295C (de) * | 1937-03-25 | 1944-11-01 | Anordnung zur Ermittlung der Verkehrsrichtung in einer UEbertragungsleitung |
-
0
- BE BE349376D patent/BE349376A/xx unknown
-
1927
- 1927-03-05 FR FR630912D patent/FR630912A/fr not_active Expired
-
1928
- 1928-03-05 GB GB6798/28A patent/GB286607A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR630912A (fr) | 1927-12-12 |
BE349376A (enrdf_load_stackoverflow) |
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