GB798245A - Improvements in or relating to channel branching arrangements in carrier communication systems - Google Patents
Improvements in or relating to channel branching arrangements in carrier communication systemsInfo
- Publication number
- GB798245A GB798245A GB426556A GB426556A GB798245A GB 798245 A GB798245 A GB 798245A GB 426556 A GB426556 A GB 426556A GB 426556 A GB426556 A GB 426556A GB 798245 A GB798245 A GB 798245A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stations
- line
- outlying
- carrier
- terminal
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/08—Arrangements for combining channels
- H04J1/085—Terminal station; Combined modulator and demodulator circuits
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
798,245. Carrier multiplex systems; partyline systems. STANDARD TELEPHONES & CABLES, Ltd. Feb. 8, 1957 [Feb. 10, 1956], No. 4265/56. Class 40 (4). Multi-channel carrier terminal equipment 1, Fig. 1, is connected to one end of a line 2, outlying stations 3, 4, 5 having carrier equipment are bridged across the line 2 at separated points for communication with the terminal station 1, a different band of frequencies being used for each outlying station, and the far end of the line is terminated at 9 by its characteristic impedance at frequencies within the bands used for all the outlying stations. In a modification, Fig. 2, terminal stations 15 and 16 are connected to the two ends of a line which is divided into two sections 13 and 14, joined by a filter 17 which passes the carrier channels (1-4) used for communication between the two terminal stations. Outlying stations using channels 5-9 are spaced along section 13 of the line and stations using channels 5-8 are spaced along section 14, each section being terminated, at 20, 21 by its characteristic impedance connected through a filter 18, 19 passing the frequency bands used by the outlying stations connected to that section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB426556A GB798245A (en) | 1956-02-10 | 1956-02-10 | Improvements in or relating to channel branching arrangements in carrier communication systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB426556A GB798245A (en) | 1956-02-10 | 1956-02-10 | Improvements in or relating to channel branching arrangements in carrier communication systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB798245A true GB798245A (en) | 1958-07-16 |
Family
ID=9773846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB426556A Expired GB798245A (en) | 1956-02-10 | 1956-02-10 | Improvements in or relating to channel branching arrangements in carrier communication systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB798245A (en) |
-
1956
- 1956-02-10 GB GB426556A patent/GB798245A/en not_active Expired
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