JPS5553968A - Carrier regenerating device - Google Patents
Carrier regenerating deviceInfo
- Publication number
- JPS5553968A JPS5553968A JP12608378A JP12608378A JPS5553968A JP S5553968 A JPS5553968 A JP S5553968A JP 12608378 A JP12608378 A JP 12608378A JP 12608378 A JP12608378 A JP 12608378A JP S5553968 A JPS5553968 A JP S5553968A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- carrier
- phase
- facsimile
- regenerated
- 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
- Facsimile Image Signal Circuits (AREA)
Abstract
PURPOSE: To ensure the accurate regeneration of the carrier along with reduction of the jitter on the screen for the facsimile signal carrier regenerating device by providing the gate which makes pass through the phase error signals only in the first phase matching period and the picture signal flyback time.
CONSTITUTION: Phase comparator 1 compares the phase between facsimile signal S1 of input 5 and regenerated carrier S2. And the error signal is formed according to the phase error. This signal is made to pass through gate circuit 4 only in the first phase matching period and the flyback time under transmission of the picture signal. Control voltage generator 2 generates the control voltage based on the phase error signal and then generates the regenerated carrier through voltage control generator 3. In such constitution, the carrier can be regenerated accurately even in case the facsimile black signal continues long or short. Thus almost no jitter is caused to the picture received.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12608378A JPS5553968A (en) | 1978-10-16 | 1978-10-16 | Carrier regenerating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12608378A JPS5553968A (en) | 1978-10-16 | 1978-10-16 | Carrier regenerating device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5553968A true JPS5553968A (en) | 1980-04-19 |
Family
ID=14926175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12608378A Pending JPS5553968A (en) | 1978-10-16 | 1978-10-16 | Carrier regenerating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5553968A (en) |
-
1978
- 1978-10-16 JP JP12608378A patent/JPS5553968A/en active Pending
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