GB169724A - Improvements in the transmission of signals by electric oscillations which are guided or carried by line wires - Google Patents
Improvements in the transmission of signals by electric oscillations which are guided or carried by line wiresInfo
- Publication number
- GB169724A GB169724A GB26127/21A GB2612721A GB169724A GB 169724 A GB169724 A GB 169724A GB 26127/21 A GB26127/21 A GB 26127/21A GB 2612721 A GB2612721 A GB 2612721A GB 169724 A GB169724 A GB 169724A
- Authority
- GB
- United Kingdom
- Prior art keywords
- insulators
- line
- insulator
- carried
- signal
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5429—Applications for powerline communications
- H04B2203/5437—Wired telephone
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5429—Applications for powerline communications
- H04B2203/5441—Wireless systems or telephone
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5462—Systems for power line communications
- H04B2203/5483—Systems for power line communications using coupling circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5462—Systems for power line communications
- H04B2203/5491—Systems for power line communications using filtering and bypassing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Insulators (AREA)
Abstract
169,724. Huth Ges., Dr. E. F., and Opponheimer, J. Oct. 2, 1920, [Convention date]. Condensers.-Relates to means for utilizing existing telegraph, telephone, or high-tension power lines, for transmitting high-frequency currents modulated by signal frequencies. The capacity effects of the suspending-insulators are utilized to transfer the modulated signal current to or from the carrier line, or for bridging over high-impedance interruptions, and also for tuning the line to the fundamental frequency of the signal currents. As shown in Fig. 1, an ordinary telegraph line l is carried by an insulator i fastened by a clamp a to a second insulator s mounted on the pole m. Both insulators are preferably fitted with internal and external metal coatings u so as to act as condensers of definite capacity. The coupling-connections for the signal currents are shown at K, C. Fig. 2 shows an insulator suitable for a high-power line l, and fitted with metal coatings m. Fig. 3 shows the coupling K, C applied between the two top insulators h of a high-power suspension system using Hewlett insulators. Other forms of insulators and methods of utilizing their capacity effects are described.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1699806X | 1920-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB169724A true GB169724A (en) | 1923-04-03 |
Family
ID=7739838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26127/21A Expired GB169724A (en) | 1920-10-02 | 1921-10-03 | Improvements in the transmission of signals by electric oscillations which are guided or carried by line wires |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1699806A (en) |
| FR (1) | FR545123A (en) |
| GB (1) | GB169724A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4142178A (en) * | 1977-04-25 | 1979-02-27 | Westinghouse Electric Corp. | High voltage signal coupler for a distribution network power line carrier communication system |
| PL1776618T3 (en) * | 2004-08-04 | 2012-08-31 | Quadlogic Controls Corp | Method and system for radio-frequency signal coupling to medium tension power lines with auto-tuning device |
-
1921
- 1921-09-29 US US504216A patent/US1699806A/en not_active Expired - Lifetime
- 1921-10-01 FR FR545123D patent/FR545123A/en not_active Expired
- 1921-10-03 GB GB26127/21A patent/GB169724A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR545123A (en) | 1922-10-06 |
| US1699806A (en) | 1929-01-22 |
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