FR950746A - Carrier frequency duplex communications systems - Google Patents
Carrier frequency duplex communications systemsInfo
- Publication number
- FR950746A FR950746A FR950746DA FR950746A FR 950746 A FR950746 A FR 950746A FR 950746D A FR950746D A FR 950746DA FR 950746 A FR950746 A FR 950746A
- Authority
- FR
- France
- Prior art keywords
- carrier frequency
- communications systems
- duplex communications
- frequency duplex
- systems
- 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
- H04J3/00—Time-division multiplex systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/026—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse time characteristics modulation, e.g. width, position, interval
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US950746XA | 1946-03-09 | 1946-03-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR950746A true FR950746A (en) | 1949-10-05 |
Family
ID=22249303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR950746D Expired FR950746A (en) | 1946-03-09 | 1947-08-01 | Carrier frequency duplex communications systems |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE478610A (en) |
FR (1) | FR950746A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3504118A (en) * | 1965-08-20 | 1970-03-31 | Siemens Ag | Method and apparatus for the additional transmission of communications over lines |
EP0072857A1 (en) * | 1981-02-26 | 1983-03-02 | Gen Electric | Data communication system. |
-
0
- BE BE478610D patent/BE478610A/xx unknown
-
1947
- 1947-08-01 FR FR950746D patent/FR950746A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3504118A (en) * | 1965-08-20 | 1970-03-31 | Siemens Ag | Method and apparatus for the additional transmission of communications over lines |
EP0072857A1 (en) * | 1981-02-26 | 1983-03-02 | Gen Electric | Data communication system. |
EP0072857A4 (en) * | 1981-02-26 | 1985-07-01 | Gen Electric | Data communication system. |
Also Published As
Publication number | Publication date |
---|---|
BE478610A (en) |
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