BE520979A - - Google Patents
Info
- Publication number
- BE520979A BE520979A BE520979DA BE520979A BE 520979 A BE520979 A BE 520979A BE 520979D A BE520979D A BE 520979DA BE 520979 A BE520979 A BE 520979A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/03—Hybrid circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1031836X | 1952-06-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE520979A true BE520979A (en) |
Family
ID=9583381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE520979D BE520979A (en) | 1952-06-27 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE520979A (en) |
| DE (1) | DE1031836B (en) |
| FR (1) | FR1059246A (en) |
| GB (1) | GB749694A (en) |
| NL (2) | NL179303B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL251885A (en) * | 1960-05-21 | |||
| FR1429455A (en) * | 1965-01-15 | 1966-02-25 | Alsthom Cgee | Improvement in bilateral transmission of messages between a fixed station and a rail vehicle or between two rail vehicles |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2499423A (en) * | 1944-09-30 | 1950-03-07 | Hartford Nat Bank & Trust Comp | Telephone transmission circuits for coupling input and output devices to a telephone line |
| FR921171A (en) * | 1945-11-02 | 1947-04-29 | Sadir Carpentier | Improvements in connection devices between electrical signaling lines |
| DE826152C (en) * | 1949-11-22 | 1951-12-27 | Joachim Vetterling | Electrical arrangement for separating current paths |
-
0
- BE BE520979D patent/BE520979A/xx unknown
- NL NL89220D patent/NL89220C/xx active
- NL NLAANVRAGE7506599,A patent/NL179303B/en unknown
-
1952
- 1952-06-27 FR FR1059246D patent/FR1059246A/en not_active Expired
-
1953
- 1953-06-19 GB GB17036/53A patent/GB749694A/en not_active Expired
- 1953-06-24 DE DEI7394A patent/DE1031836B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR1059246A (en) | 1954-03-23 |
| GB749694A (en) | 1956-05-30 |
| DE1031836B (en) | 1958-06-12 |
| NL89220C (en) | |
| NL179303B (en) |