JPS5437454A - Reference carrier wave regenerating circuit - Google Patents
Reference carrier wave regenerating circuitInfo
- Publication number
- JPS5437454A JPS5437454A JP10229877A JP10229877A JPS5437454A JP S5437454 A JPS5437454 A JP S5437454A JP 10229877 A JP10229877 A JP 10229877A JP 10229877 A JP10229877 A JP 10229877A JP S5437454 A JPS5437454 A JP S5437454A
- Authority
- JP
- Japan
- Prior art keywords
- carrier wave
- reference carrier
- regenerating circuit
- wave regenerating
- phase
- 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
Landscapes
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
PURPOSE: To obtain a high-quality reference carrier wave for the reference carrier wave regenerating circuit using the AFC loop, by installing a phase shifter to offset the phase revolution of the band pass filter caused by the frequency variation of n-phase PSK signal.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10229877A JPS5437454A (en) | 1977-08-25 | 1977-08-25 | Reference carrier wave regenerating circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10229877A JPS5437454A (en) | 1977-08-25 | 1977-08-25 | Reference carrier wave regenerating circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5437454A true JPS5437454A (en) | 1979-03-19 |
Family
ID=14323701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10229877A Pending JPS5437454A (en) | 1977-08-25 | 1977-08-25 | Reference carrier wave regenerating circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5437454A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4409562A (en) * | 1978-08-12 | 1983-10-11 | Fujitsu Limited | Phase correction circuit employing bandpass filters |
JPS6211347A (en) * | 1985-07-09 | 1987-01-20 | Nec Home Electronics Ltd | Four-phase psk demodulating device |
-
1977
- 1977-08-25 JP JP10229877A patent/JPS5437454A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4409562A (en) * | 1978-08-12 | 1983-10-11 | Fujitsu Limited | Phase correction circuit employing bandpass filters |
JPS6211347A (en) * | 1985-07-09 | 1987-01-20 | Nec Home Electronics Ltd | Four-phase psk demodulating device |
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