GB335935A - Composite signalling system - Google Patents
Composite signalling systemInfo
- Publication number
- GB335935A GB335935A GB2038629A GB2038629A GB335935A GB 335935 A GB335935 A GB 335935A GB 2038629 A GB2038629 A GB 2038629A GB 2038629 A GB2038629 A GB 2038629A GB 335935 A GB335935 A GB 335935A
- Authority
- GB
- United Kingdom
- Prior art keywords
- telegraph
- transmission
- signals
- cable
- msr
- 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
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL30479D NL30479C (da) | 1929-07-03 | ||
GB2038629A GB335935A (en) | 1929-07-03 | 1929-07-03 | Composite signalling system |
DE1930543686D DE543686C (de) | 1929-07-03 | 1930-04-25 | Anlage fuer gleichzeitiges Telegraphieren und Telephonieren, bei der die UEbertragungsrichtung der Sprache gewechselt wird |
FR697064D FR697064A (fr) | 1929-07-03 | 1930-06-03 | Système électrique pour la transmission combinée de courants de signalisation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2038629A GB335935A (en) | 1929-07-03 | 1929-07-03 | Composite signalling system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB335935A true GB335935A (en) | 1930-10-03 |
Family
ID=10145090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2038629A Expired GB335935A (en) | 1929-07-03 | 1929-07-03 | Composite signalling system |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE543686C (da) |
FR (1) | FR697064A (da) |
GB (1) | GB335935A (da) |
NL (1) | NL30479C (da) |
-
0
- NL NL30479D patent/NL30479C/xx active
-
1929
- 1929-07-03 GB GB2038629A patent/GB335935A/en not_active Expired
-
1930
- 1930-04-25 DE DE1930543686D patent/DE543686C/de not_active Expired
- 1930-06-03 FR FR697064D patent/FR697064A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL30479C (da) | |
FR697064A (fr) | 1931-01-12 |
DE543686C (de) | 1932-02-09 |
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