GB905815A - Improvements in or relating to telegraph receiving systems - Google Patents
Improvements in or relating to telegraph receiving systemsInfo
- Publication number
- GB905815A GB905815A GB3712260A GB3712260A GB905815A GB 905815 A GB905815 A GB 905815A GB 3712260 A GB3712260 A GB 3712260A GB 3712260 A GB3712260 A GB 3712260A GB 905815 A GB905815 A GB 905815A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistors
- condition
- conducts
- oct
- relating
- 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
- 238000004804 winding Methods 0.000 abstract 3
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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Dc Digital Transmission (AREA)
- Interface Circuits In Exchanges (AREA)
Abstract
905,815. Code telegraphy. SIEMENS & HALSKE A.G. Oct. 28, 1960 [Oct. 29, 1959], No. 37122/60. Class 40 (3). [Also in Group XL (c)] A double current telegraph receiving system includes two transistors, one conducting in the mark condition and the other in the space condition, which respectively energize the first and second windings of an electromagnetic receiving device. In the embodiment illustrated transistors of opposite type are used. The double current incoming line is connected at a1, b1 and has connected across it a resistor WL which presents a resistive load to the incoming line. When a1 is positive with respect to b1, the mark condition, transistor Tr2 conducts and current flows in winding II of the receiving magnet EM. When a1 is negative with respect to b1, the space condition, Tr1 conducts and a current flows in winding I of magnet EM. Fig. 2 (not shown), illustrates a system using transistors of the same type.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES65622A DE1089007B (en) | 1959-10-29 | 1959-10-29 | Circuit arrangement for teletype subscriber stations with indirect control of the receiving magnet by double current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB905815A true GB905815A (en) | 1962-09-12 |
Family
ID=7498175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3712260A Expired GB905815A (en) | 1959-10-29 | 1960-10-28 | Improvements in or relating to telegraph receiving systems |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1089007B (en) |
| GB (1) | GB905815A (en) |
-
1959
- 1959-10-29 DE DES65622A patent/DE1089007B/en active Pending
-
1960
- 1960-10-28 GB GB3712260A patent/GB905815A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1089007B (en) | 1960-09-15 |
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