JPS5680981A - Color video signal dubbing system - Google Patents
Color video signal dubbing systemInfo
- Publication number
- JPS5680981A JPS5680981A JP15851779A JP15851779A JPS5680981A JP S5680981 A JPS5680981 A JP S5680981A JP 15851779 A JP15851779 A JP 15851779A JP 15851779 A JP15851779 A JP 15851779A JP S5680981 A JPS5680981 A JP S5680981A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- signal
- recording medium
- color video
- mixer
- 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
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Abstract
PURPOSE:To prevent frequency characteristics, linearity, etc., from deteriorating and to eliminate beat interference and an inversion phenomenon with regard to a dubbing system for color video signals, by mixing a low-frequency converted chrominance signal and luminance signal to be frequency-modulated and by recording the mixture direct on a recording medium. CONSTITUTION:A color video signal from input terminal 1 is processed in the normal method to obtain a frequency-division multiplex signal, which is recorded on recording medium A. From this recording medium A (A'), the above-mentioned frequency-division multiplex signal is reproduced by reproducing head 12 and passed through low-pass filter 23 to obtain a low-frequency converted chrominance signal, which is level-adjusted and then applied to one input terminal of mixer 25. Further, a luminance signal to be frequency-modulated is obtained from the above- mentioned reproduced signal and the compensation of frequency deterioration, averaging of upper and lower side-band waves, compensation of the frequency decreased of a carrier component, and removal of fluctuations of amplitude are carried out to record on recording medium B the output of mixer 25 applied to the other three inputs mixer 25. By such a dubbing system, the occurrence of an inversion phenomenon can be prevented, frequency characteristics, pulse characteristics and linearity is improved and beat interference is also reduced.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15851779A JPS5680981A (en) | 1979-12-06 | 1979-12-06 | Color video signal dubbing system |
US06/210,155 US4396953A (en) | 1979-12-06 | 1980-11-25 | Color video signal dubbing system for collating the outputs of signal sources |
GB8038708A GB2067376B (en) | 1979-12-06 | 1980-12-03 | Colour video signal dubbing system |
FR8025659A FR2471718B1 (en) | 1979-12-06 | 1980-12-03 | COLOR VIDEO SIGNAL COPYING SYSTEM |
DE3046129A DE3046129C2 (en) | 1979-12-06 | 1980-12-06 | Color video signal copying device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15851779A JPS5680981A (en) | 1979-12-06 | 1979-12-06 | Color video signal dubbing system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5680981A true JPS5680981A (en) | 1981-07-02 |
Family
ID=15673464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15851779A Pending JPS5680981A (en) | 1979-12-06 | 1979-12-06 | Color video signal dubbing system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5680981A (en) |
-
1979
- 1979-12-06 JP JP15851779A patent/JPS5680981A/en active Pending
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