JPS5658112A - Recording/reproducing system of picture information - Google Patents
Recording/reproducing system of picture informationInfo
- Publication number
- JPS5658112A JPS5658112A JP13342579A JP13342579A JPS5658112A JP S5658112 A JPS5658112 A JP S5658112A JP 13342579 A JP13342579 A JP 13342579A JP 13342579 A JP13342579 A JP 13342579A JP S5658112 A JPS5658112 A JP S5658112A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- sampling pulse
- video signal
- recording
- reproduced
- 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)
- Optical Recording Or Reproduction (AREA)
Abstract
PURPOSE: To eliminate the effect of jitter, by carrying out the recording with an addition of the sampling pulse of the frequency adjacent to the upper limit of the video signal frequency band which is required during the recording.
CONSTITUTION: The sampling pulse applied to the terminal 6 is supplied to the PLL circuit 7 and converted into the 10-fold frequency to be furthermore divided down to the frequency of 1/16 through the frequency divider 12. The sampling pulse thus produced is turned into the frequency adjacent to the upper limit of the frequency band necessary for the video signal 1 and then receives an FM modulation after an addition at the adder 4. In reproduction, the FM signal detected through the photoelectric transducer 14 is demodulated by the demodulator 17, and then the sampling pulse is extracted through the tuning circuit 19 via the PLL circuit 20 and the frequency dividing circuit 25. In other words, both the reproduced video signal and the sampling pulse were recorded at one time, and thus the reproduced video signal is sampled by the reproduced sampling pulse. In this way, the jitter during the reproduction can be eliminated.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13342579A JPS5658112A (en) | 1979-10-16 | 1979-10-16 | Recording/reproducing system of picture information |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13342579A JPS5658112A (en) | 1979-10-16 | 1979-10-16 | Recording/reproducing system of picture information |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5658112A true JPS5658112A (en) | 1981-05-21 |
Family
ID=15104465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13342579A Pending JPS5658112A (en) | 1979-10-16 | 1979-10-16 | Recording/reproducing system of picture information |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5658112A (en) |
-
1979
- 1979-10-16 JP JP13342579A patent/JPS5658112A/en active Pending
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