JPS6457832A - Switching device for transmission line - Google Patents
Switching device for transmission lineInfo
- Publication number
- JPS6457832A JPS6457832A JP21428587A JP21428587A JPS6457832A JP S6457832 A JPS6457832 A JP S6457832A JP 21428587 A JP21428587 A JP 21428587A JP 21428587 A JP21428587 A JP 21428587A JP S6457832 A JPS6457832 A JP S6457832A
- Authority
- JP
- Japan
- Prior art keywords
- transmission line
- transmission
- sent
- reception
- signal
- 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.)
- Pending
Links
Abstract
PURPOSE:To output an input signal of one transmission line as output signals of plural transmission lines with simple constitution by changing the transmission and reception frequency of a transmission means and a reception means so as to switch the transmission line. CONSTITUTION:An input signal from transmission lines 1, 2 is modulated by f1, f2Hz by modulators 4, 5 respectively and sent as a radio wave by transmitters 6, 7 and transmission antennas 8, 9. The reception antennas 10, 11 receive a radio wave and when the reception frequencies by the receivers 12, 13 are f1, f2Hz, the signal demodulated by demodulators 14, 15 is sent to the transmission lines 16,17. On the other hand, the reception frequencies of the receivers 12,13 are f2, f1Hz, the signal of the transmission line 1 is sent to the transmission line 17 and the signal of the transmission line 2 is sent to the transmission line 16. Thus, the constitution is made simple because no connecting point is required and the input signal of one transmission line is outputted as output signals for plural transmission lines.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21428587A JPS6457832A (en) | 1987-08-28 | 1987-08-28 | Switching device for transmission line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21428587A JPS6457832A (en) | 1987-08-28 | 1987-08-28 | Switching device for transmission line |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6457832A true JPS6457832A (en) | 1989-03-06 |
Family
ID=16653200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21428587A Pending JPS6457832A (en) | 1987-08-28 | 1987-08-28 | Switching device for transmission line |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6457832A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02246646A (en) * | 1989-03-20 | 1990-10-02 | Fujitsu Ltd | Self-routing exchange system |
-
1987
- 1987-08-28 JP JP21428587A patent/JPS6457832A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02246646A (en) * | 1989-03-20 | 1990-10-02 | Fujitsu Ltd | Self-routing exchange system |
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