GB248714A - Arrangement for transmitting messages along electric transmission lines by means of high-frequency currents - Google Patents
Arrangement for transmitting messages along electric transmission lines by means of high-frequency currentsInfo
- Publication number
- GB248714A GB248714A GB1945/26A GB194526A GB248714A GB 248714 A GB248714 A GB 248714A GB 1945/26 A GB1945/26 A GB 1945/26A GB 194526 A GB194526 A GB 194526A GB 248714 A GB248714 A GB 248714A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transmission lines
- condensers
- arrangement
- electric transmission
- transmitting messages
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/56—Circuits for coupling, blocking, or by-passing of signals
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Near-Field Transmission Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
248,714. Pfiffner, E. March 3, 1925, [Convention date]. Drawings to Specification. Wired wireless systems. - The condensers usually connected between power transmission lines and earth for the absorption of excess voltages are utilized for the connection of highfrequency signal transmitting and receiving apparatus to the lines, and for bridging transformers and other apparatus which would otherwise impede the signalling currents. A number of condensers in series are employed, and the signal transmitting and receiving apparatus are coupled inductively to coils connected across the condensers at the earth end of the chain. For bridging transformers &c., similar inductive couplings, direct connections, or connections through a condenser or ohmic resistance, may be used.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE248714X | 1925-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB248714A true GB248714A (en) | 1926-11-25 |
Family
ID=5935621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1945/26A Expired GB248714A (en) | 1925-03-03 | 1926-01-22 | Arrangement for transmitting messages along electric transmission lines by means of high-frequency currents |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1865952A (en) |
| BE (1) | BE331774A (en) |
| FR (1) | FR609349A (en) |
| GB (1) | GB248714A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR908688A (en) * | 1942-02-20 | 1946-04-16 | Constr Telephoniques | High frequency traffic system on power transmission lines |
| BE483168A (en) * | 1946-06-15 | |||
| US4473817A (en) * | 1982-04-13 | 1984-09-25 | Rockwell International Corporation | Coupling power line communications signals around distribution transformers |
-
0
- BE BE331774D patent/BE331774A/xx unknown
-
1926
- 1926-01-14 FR FR609349D patent/FR609349A/en not_active Expired
- 1926-01-22 GB GB1945/26A patent/GB248714A/en not_active Expired
- 1926-01-23 US US83266A patent/US1865952A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR609349A (en) | 1926-08-12 |
| US1865952A (en) | 1932-07-05 |
| BE331774A (en) |
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