NL67469C - - Google Patents
Info
- Publication number
- NL67469C NL67469C NL67469DA NL67469C NL 67469 C NL67469 C NL 67469C NL 67469D A NL67469D A NL 67469DA NL 67469 C NL67469 C NL 67469C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/16—Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission
-
- 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
- H04B1/54—Circuits using the same frequency for two directions of communication
- H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/20—Repeater circuits; Relay circuits
- H04L25/22—Repeaters for converting two wires to four wires; Repeaters for converting single current to double current
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Devices For Supply Of Signal Current (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL283929X | 1946-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL67469C true NL67469C (en:Method) |
Family
ID=19782419
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL67469D NL67469C (en:Method) | 1946-08-03 | ||
| NL62080D NL62080C (en:Method) | 1946-08-03 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL62080D NL62080C (en:Method) | 1946-08-03 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2559562A (en:Method) |
| BE (1) | BE483453A (en:Method) |
| CH (1) | CH283929A (en:Method) |
| FR (1) | FR958760A (en:Method) |
| GB (1) | GB661867A (en:Method) |
| NL (2) | NL62080C (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1064551B (de) * | 1956-03-29 | 1959-09-03 | Siemens Ag | Fernschreibteilnehmer-Gabelschaltung fuer den amtsseitigen Abschluss einer mit Einfachstrom betriebenen Fernschreibteilnehmer-Leitung |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1852050A (en) * | 1931-06-12 | 1932-04-05 | American Telephone & Telegraph | Telegraph system |
| US2117723A (en) * | 1936-05-20 | 1938-05-17 | Bell Telephone Labor Inc | Telegraph repeater |
| US2347813A (en) * | 1941-10-11 | 1944-05-02 | Blanche Fry Cummings | Inverse neutral telegraph repeater hub circuit |
-
0
- FR FR958760D patent/FR958760A/fr not_active Expired
- BE BE483453D patent/BE483453A/xx unknown
- NL NL67469D patent/NL67469C/xx active
- NL NL62080D patent/NL62080C/xx active
-
1947
- 1947-07-30 US US767533A patent/US2559562A/en not_active Expired - Lifetime
- 1947-12-19 CH CH283929D patent/CH283929A/fr unknown
- 1947-12-31 GB GB34976/47A patent/GB661867A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2559562A (en) | 1951-07-03 |
| FR958760A (en:Method) | 1950-03-17 |
| BE483453A (en:Method) | |
| GB661867A (en) | 1951-11-28 |
| CH283929A (fr) | 1952-06-30 |
| NL62080C (en:Method) |