FR1119875A - Système de téléphonie à courants porteurs - Google Patents
Système de téléphonie à courants porteursInfo
- Publication number
- FR1119875A FR1119875A FR1119875DA FR1119875A FR 1119875 A FR1119875 A FR 1119875A FR 1119875D A FR1119875D A FR 1119875DA FR 1119875 A FR1119875 A FR 1119875A
- Authority
- FR
- France
- Prior art keywords
- powerline
- telephony system
- telephony
- powerline telephony
- 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
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/16—Arrangements for interconnection between switching centres in systems employing carrier frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/44—Arrangements for feeding power to a repeater along the transmission line
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/18—Frequency-division multiplex systems in which all the carriers are amplitude-modulated
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems
- H04Q5/08—Signalling by continuous AC
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US40988854A | 1954-02-12 | 1954-02-12 | |
| US846040A US3086171A (en) | 1954-02-12 | 1959-10-12 | Carrier wave telephony |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1119875A true FR1119875A (fr) | 1956-06-26 |
Family
ID=27020796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1119875D Expired FR1119875A (fr) | 1954-02-12 | 1955-02-11 | Système de téléphonie à courants porteurs |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3086171A (fr) |
| CH (1) | CH345670A (fr) |
| FR (1) | FR1119875A (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2755619C2 (de) * | 1977-12-14 | 1979-09-27 | Danfoss A/S, Nordborg (Daenemark) | Sendeempfangsweiche |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2102138A (en) * | 1936-02-21 | 1937-12-14 | Bell Telephone Labor Inc | Transmission system |
| US2214130A (en) * | 1939-03-03 | 1940-09-10 | Bell Telephone Labor Inc | Measurement of phase change and envelope delay of a transmission line |
| US2273719A (en) * | 1940-10-02 | 1942-02-17 | Bell Telephone Labor Inc | Television signaling system |
| US2379744A (en) * | 1942-03-31 | 1945-07-03 | Bell Telephone Labor Inc | Electric circuit arrangement employing delay networks |
| BE473802A (fr) * | 1946-08-20 | |||
| US2490833A (en) * | 1947-04-26 | 1949-12-13 | Fed Telecomm Labs Inc | All electronic line finder and selector system |
| US2604544A (en) * | 1949-12-30 | 1952-07-22 | W C Dillon & Company Inc | Carrier telephone system with audio-frequency signaling |
-
1955
- 1955-02-07 CH CH345670D patent/CH345670A/de unknown
- 1955-02-11 FR FR1119875D patent/FR1119875A/fr not_active Expired
-
1959
- 1959-10-12 US US846040A patent/US3086171A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CH345670A (de) | 1960-04-15 |
| US3086171A (en) | 1963-04-16 |
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