JPS6457832A - Switching device for transmission line - Google Patents

Switching device for transmission line

Info

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
Application number
JP21428587A
Other languages
Japanese (ja)
Inventor
Hiroteru Yoshifuji
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP21428587A priority Critical patent/JPS6457832A/en
Publication of JPS6457832A publication Critical patent/JPS6457832A/en
Pending legal-status Critical Current

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.
JP21428587A 1987-08-28 1987-08-28 Switching device for transmission line Pending JPS6457832A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02246646A (en) * 1989-03-20 1990-10-02 Fujitsu Ltd Self-routing exchange system

Cited By (1)

* Cited by examiner, † Cited by third party
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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