FR1167448A - Dispositif de télégraphie par courants porteurs à plusieurs voies - Google Patents
Dispositif de télégraphie par courants porteurs à plusieurs voiesInfo
- Publication number
- FR1167448A FR1167448A FR1167448DA FR1167448A FR 1167448 A FR1167448 A FR 1167448A FR 1167448D A FR1167448D A FR 1167448DA FR 1167448 A FR1167448 A FR 1167448A
- Authority
- FR
- France
- Prior art keywords
- power line
- channel power
- telegraphy device
- line telegraphy
- telegraphy
- 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
- H04J1/06—Arrangements for supplying the carrier waves ; Arrangements for supplying synchronisation signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transmitters (AREA)
- Radio Transmission System (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL323186X | 1953-05-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1167448A true FR1167448A (fr) | 1958-11-25 |
Family
ID=19784074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1167448D Expired FR1167448A (fr) | 1953-05-30 | 1954-05-28 | Dispositif de télégraphie par courants porteurs à plusieurs voies |
Country Status (7)
Country | Link |
---|---|
US (1) | US2820095A (fr) |
BE (1) | BE527606A (fr) |
CH (1) | CH323186A (fr) |
DE (1) | DE1011458B (fr) |
FR (1) | FR1167448A (fr) |
GB (1) | GB757145A (fr) |
NL (2) | NL178726B (fr) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2374567A (en) * | 1944-09-06 | 1945-04-24 | Western Union Telegraph Co | Multichannel carrier transmission system |
US2623123A (en) * | 1950-02-10 | 1952-12-23 | Bell Telephone Labor Inc | Carrier telegraph system |
US2662933A (en) * | 1951-04-26 | 1953-12-15 | Bell Telephone Labor Inc | Multiplex carrier telegraph system |
US2630493A (en) * | 1951-07-10 | 1953-03-03 | American Telephone & Telegraph | Carrier telegraph system |
-
0
- NL NL85097D patent/NL85097C/xx active
- NL NLAANVRAGE7804623,B patent/NL178726B/xx unknown
- BE BE527606D patent/BE527606A/xx unknown
-
1954
- 1954-05-19 US US430934A patent/US2820095A/en not_active Expired - Lifetime
- 1954-05-27 GB GB15734/54A patent/GB757145A/en not_active Expired
- 1954-05-28 FR FR1167448D patent/FR1167448A/fr not_active Expired
- 1954-05-28 DE DEN8974A patent/DE1011458B/de active Pending
- 1954-05-31 CH CH323186D patent/CH323186A/de unknown
Also Published As
Publication number | Publication date |
---|---|
NL178726B (nl) | |
BE527606A (fr) | |
DE1011458B (de) | 1957-07-04 |
US2820095A (en) | 1958-01-14 |
GB757145A (en) | 1956-09-12 |
NL85097C (fr) | |
CH323186A (de) | 1957-07-15 |
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