NL89721C - - Google Patents
Info
- Publication number
- NL89721C NL89721C NL89721DA NL89721C NL 89721 C NL89721 C NL 89721C NL 89721D A NL89721D A NL 89721DA NL 89721 C NL89721 C NL 89721C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
- H04L25/207—Repeater circuits; Relay circuits using electromagnetic switches
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1001315X | 1954-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL89721C true NL89721C (fr) |
Family
ID=9561084
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL89721D NL89721C (fr) | 1954-06-28 | ||
| NL190297D NL190297A (nl) | 1954-06-28 | Beeldweergeefinrichting met plat vacuuemhuis. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL190297D NL190297A (nl) | 1954-06-28 | Beeldweergeefinrichting met plat vacuuemhuis. |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2941034A (fr) |
| DE (1) | DE1001315B (fr) |
| FR (1) | FR1107747A (fr) |
| GB (1) | GB773106A (fr) |
| NL (2) | NL190297A (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3040130A (en) * | 1958-12-24 | 1962-06-19 | Itt | Repeater station for a bidirectional communication system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1736786A (en) * | 1929-11-26 | Telegraph repeater circuits | ||
| US1472463A (en) * | 1921-04-30 | 1923-10-30 | Western Electric Co | Telegraph repeating system |
| US1817989A (en) * | 1928-07-05 | 1931-08-11 | Lorenz C Ag | Connection for telegraph plants |
| GB351487A (en) * | 1930-03-26 | 1931-06-26 | Creed & Co Ltd | Improvements in telegraph circuits |
| US1965347A (en) * | 1931-04-28 | 1934-07-03 | Bell Telephone Labor Inc | Direction control, switch for signaling systems |
| DE631627C (de) * | 1933-06-01 | 1936-06-26 | Lorenz Akt Ges C | Schaltungsanordnung fuer in beiden Richtungen benutzbare UEbertrager |
| FR789662A (fr) * | 1934-05-19 | 1935-11-04 | Nationale Telephon & Telegraphenwerke Gmbh | Installation télégraphique fonctionnant en double courant |
| US2055575A (en) * | 1934-07-05 | 1936-09-29 | American Telephone & Telegraph | Telegraph repeater circuits |
| DE921088C (de) * | 1951-11-03 | 1954-12-09 | Siemens Ag | Schaltungsanordnung zur Steuerung von Fernschreib-Entzerrern fuer die UEbertragung von Wahlkriterien und Rueckimpulsen |
| US2761896A (en) * | 1952-10-28 | 1956-09-04 | American Telephone & Telegraph | Telegraph repeater system |
-
0
- NL NL89721D patent/NL89721C/xx active
- NL NL190297D patent/NL190297A/xx unknown
-
1954
- 1954-06-28 FR FR1107747D patent/FR1107747A/fr not_active Expired
-
1955
- 1955-06-07 US US513743A patent/US2941034A/en not_active Expired - Lifetime
- 1955-06-10 DE DEC11379A patent/DE1001315B/de active Pending
- 1955-06-22 GB GB18037/55A patent/GB773106A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1107747A (fr) | 1956-01-04 |
| US2941034A (en) | 1960-06-14 |
| DE1001315B (de) | 1957-01-24 |
| NL190297A (nl) | |
| GB773106A (en) | 1957-04-24 |