JPS54153509A - Branch insertion system to direct relaying - Google Patents
Branch insertion system to direct relayingInfo
- Publication number
- JPS54153509A JPS54153509A JP6258878A JP6258878A JPS54153509A JP S54153509 A JPS54153509 A JP S54153509A JP 6258878 A JP6258878 A JP 6258878A JP 6258878 A JP6258878 A JP 6258878A JP S54153509 A JPS54153509 A JP S54153509A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- shift
- insertion system
- sfo3
- output
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/10—Intermediate station arrangements, e.g. for branching, for tapping-off
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
Abstract
PURPOSE:To avoid the effect to other line, by using the output of oscillation, when the reception signal from one direction decreases to a given value. CONSTITUTION:When the input signal f3 from the No. 1 direction is a given value or less, the output of the detector DET1 is below the reference value and the switch SW1 is selected to the b side. The shift oscillator SFO3 oscillates the same continuous waves as the shift signal fs. Accordingly, the signal of the shift oscillator SFO3 shifts the signal f2 from the No. 2 direction in the mixer MIX3 to produce f1' and is delivered as the signal f1' toward the No. 3 direction. Thus, the signal from the No. 2 to No. 3 is kept with the shift oscillator and no effect is caused with the vanishing of the input signal toward the No. 1 direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6258878A JPS54153509A (en) | 1978-05-25 | 1978-05-25 | Branch insertion system to direct relaying |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6258878A JPS54153509A (en) | 1978-05-25 | 1978-05-25 | Branch insertion system to direct relaying |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54153509A true JPS54153509A (en) | 1979-12-03 |
Family
ID=13204622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6258878A Pending JPS54153509A (en) | 1978-05-25 | 1978-05-25 | Branch insertion system to direct relaying |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54153509A (en) |
-
1978
- 1978-05-25 JP JP6258878A patent/JPS54153509A/en active Pending
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