FR822129A - Wave transmission systems - Google Patents
Wave transmission systemsInfo
- Publication number
- FR822129A FR822129A FR822129DA FR822129A FR 822129 A FR822129 A FR 822129A FR 822129D A FR822129D A FR 822129DA FR 822129 A FR822129 A FR 822129A
- Authority
- FR
- France
- Prior art keywords
- wave transmission
- transmission systems
- systems
- wave
- transmission
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/16—Monitoring arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73067A US2089179A (en) | 1936-04-07 | 1936-04-07 | Coaxial transmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR822129A true FR822129A (en) | 1937-12-21 |
Family
ID=22111521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR822129D Expired FR822129A (en) | 1936-04-07 | 1937-04-01 | Wave transmission systems |
Country Status (4)
Country | Link |
---|---|
US (1) | US2089179A (en) |
BE (1) | BE420598A (en) |
FR (1) | FR822129A (en) |
GB (1) | GB472806A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE446492A (en) * | 1941-04-17 | |||
BE793053A (en) * | 1971-12-20 | 1973-06-20 | Siemens Ag | MOUNTING FOR SUBSCRIBER LINES CONTAINING TWO SYMMETRICAL BIFILAR LINES FOR ADDITIONAL SIGNAL TRANSMISSION, IN PARTICULAR FOR VIDEO TELEPHONES |
US3973170A (en) * | 1974-09-09 | 1976-08-03 | Honeywell Inc. | Intrinsic safety barrier |
US5880535A (en) * | 1997-10-14 | 1999-03-09 | Honeycutt; Larry W. | Tap resistant security circuit |
-
0
- BE BE420598D patent/BE420598A/xx unknown
-
1936
- 1936-04-07 US US73067A patent/US2089179A/en not_active Expired - Lifetime
-
1937
- 1937-04-01 FR FR822129D patent/FR822129A/en not_active Expired
- 1937-04-07 GB GB9918/37A patent/GB472806A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE420598A (en) | 1900-01-01 |
US2089179A (en) | 1937-08-10 |
GB472806A (en) | 1937-09-30 |
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