BE363945A - - Google Patents
Info
- Publication number
- BE363945A BE363945A BE363945DA BE363945A BE 363945 A BE363945 A BE 363945A BE 363945D A BE363945D A BE 363945DA BE 363945 A BE363945 A BE 363945A
- Authority
- BE
- Belgium
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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
- H04B1/46—Transmit/receive switching by voice-frequency signals; by pilot signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Insulating Bodies (AREA)
- Inorganic Insulating Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH245131X | 1924-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE363945A true BE363945A (instruction) |
Family
ID=4464721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE363945D BE363945A (instruction) | 1924-12-21 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE363945A (instruction) |
| FR (1) | FR608265A (instruction) |
| GB (1) | GB245131A (instruction) |
| NL (1) | NL32129C (instruction) |
-
0
- NL NL32129D patent/NL32129C/xx active
- BE BE363945D patent/BE363945A/xx unknown
-
1925
- 1925-12-14 FR FR608265D patent/FR608265A/fr not_active Expired
- 1925-12-21 GB GB32252/25A patent/GB245131A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB245131A (en) | 1927-01-06 |
| FR608265A (fr) | 1926-07-23 |
| NL32129C (instruction) |