FR649485A - Improvements to high frequency electrical signaling systems using transmission lines - Google Patents
Improvements to high frequency electrical signaling systems using transmission linesInfo
- Publication number
- FR649485A FR649485A FR649485DA FR649485A FR 649485 A FR649485 A FR 649485A FR 649485D A FR649485D A FR 649485DA FR 649485 A FR649485 A FR 649485A
- Authority
- FR
- France
- Prior art keywords
- high frequency
- transmission lines
- frequency electrical
- signaling systems
- electrical signaling
- 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
- H04B3/58—Repeater circuits
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US166664A US1746808A (en) | 1927-02-08 | 1927-02-08 | Power-line signaling |
Publications (1)
Publication Number | Publication Date |
---|---|
FR649485A true FR649485A (en) | 1928-12-22 |
Family
ID=9776297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR649485D Expired FR649485A (en) | 1927-02-08 | 1928-02-07 | Improvements to high frequency electrical signaling systems using transmission lines |
Country Status (3)
Country | Link |
---|---|
US (1) | US1746808A (en) |
FR (1) | FR649485A (en) |
GB (1) | GB311451A (en) |
Families Citing this family (6)
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 |
US2515855A (en) * | 1947-12-11 | 1950-07-18 | Union Switch & Signal Co | Means for by-passing a fault of a line circuit and for telephoning to railway trains |
US2634334A (en) * | 1948-02-20 | 1953-04-07 | Harry N Kalb | Carrier current communication system |
US2501820A (en) * | 1948-04-29 | 1950-03-28 | Rca Corp | Intercommunication system |
US2654805A (en) * | 1949-10-28 | 1953-10-06 | Westinghouse Electric Corp | Remote-control system |
CZ309586B6 (en) * | 2020-02-03 | 2023-05-03 | Vysoká Škola Báňská - Technická Univerzita Ostrava | Mobile network repeater with induction power supply |
-
1927
- 1927-02-08 US US166664A patent/US1746808A/en not_active Expired - Lifetime
-
1928
- 1928-02-07 FR FR649485D patent/FR649485A/en not_active Expired
- 1928-02-11 GB GB4392/28A patent/GB311451A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1746808A (en) | 1930-02-11 |
GB311451A (en) | 1929-05-13 |
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