GB114017A - Improvements relating to Electric Circuits Linked by a Relay or Repeater. - Google Patents
Improvements relating to Electric Circuits Linked by a Relay or Repeater.Info
- Publication number
- GB114017A GB114017A GB365217A GB365217A GB114017A GB 114017 A GB114017 A GB 114017A GB 365217 A GB365217 A GB 365217A GB 365217 A GB365217 A GB 365217A GB 114017 A GB114017 A GB 114017A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- transformers
- input circuit
- repeater
- output circuit
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
114,017. Grinsted, W. H. March 13, 1917. Relays, repeaters, and translators, non-circuitclosing.-To prevent " howling " in a relay having a local input circuit and a local output circuit, equal and opposite electromotive forces are set up in the input circuit by the currents in the output circuit. In the arrangement shown in Fig. 1, the input circuit is connected to the lines 1, 2 by transformers P<1>, I' P<2>, I<2> while the output circuit is connected to the lines by transformers 0', S'; O<2>, S<2> connected in such a manner that the electromotive forces induced in the input circuit by the currents in the windings P', P<2> derived from the transformers O<1>, S<1> ; O<2>, S<2> are equal and opposite. In the modification shown in Fig. 2, two transformers are provided, each of which has a winding P' or P<2> in the line, a winding I<1> or I<2> in the input circuit, and windings O<1>, O<2> connected in parallel in the output circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB365217A GB114017A (en) | 1917-03-13 | 1917-03-13 | Improvements relating to Electric Circuits Linked by a Relay or Repeater. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB365217A GB114017A (en) | 1917-03-13 | 1917-03-13 | Improvements relating to Electric Circuits Linked by a Relay or Repeater. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB114017A true GB114017A (en) | 1918-03-13 |
Family
ID=32407577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB365217A Expired GB114017A (en) | 1917-03-13 | 1917-03-13 | Improvements relating to Electric Circuits Linked by a Relay or Repeater. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB114017A (en) |
-
1917
- 1917-03-13 GB GB365217A patent/GB114017A/en not_active Expired
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