JPS54140820A - Recorder for picture signal - Google Patents
Recorder for picture signalInfo
- Publication number
- JPS54140820A JPS54140820A JP4835078A JP4835078A JPS54140820A JP S54140820 A JPS54140820 A JP S54140820A JP 4835078 A JP4835078 A JP 4835078A JP 4835078 A JP4835078 A JP 4835078A JP S54140820 A JPS54140820 A JP S54140820A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- signals
- circuit
- synchronizing
- synchronizing 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
Landscapes
- Television Signal Processing For Recording (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
PURPOSE: To eliminate black-and-white uneveness by holding constant the DC levels of a synchronizing signal and a picture signal outputted from a pre-amplifier, by applying a scanning synchronizing signal to the input terminal of the pre-amplifier constantly.
CONSTITUTION: Signals transmitted at a low speed are time-converted into high- speed signals by single-line memories 18 and 19. Through the control of controller 20, picture signals stored in memories 18 and 19 are outputted synchronizing with the synchronizing signal of synchronizing-signal generating circuit 21 and then mixed with the synchronizing signal by signal synthesizer circuit 22. Then, they are amplified by pre-amplifier 23, FM-modulated by FM modulator circuit 24, and then sent out to recorder circuit 25, so that alternate signals of each line will be recorded intermittently via head 28 on magnetic discoid recording medium 29. Then, those signals are transmitted from head 28 to regenerating circuit 30 and reconverted into original signals via FM demodulator circuit 31 before being displayed on cathode-ray tube 32. Further, a scanning synchronizing signal is applied constantly even while no picture signal is applied.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4835078A JPS54140820A (en) | 1978-04-25 | 1978-04-25 | Recorder for picture signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4835078A JPS54140820A (en) | 1978-04-25 | 1978-04-25 | Recorder for picture signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54140820A true JPS54140820A (en) | 1979-11-01 |
Family
ID=12800918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4835078A Pending JPS54140820A (en) | 1978-04-25 | 1978-04-25 | Recorder for picture signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54140820A (en) |
-
1978
- 1978-04-25 JP JP4835078A patent/JPS54140820A/en active Pending
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