JPS5680981A - Color video signal dubbing system - Google Patents

Color video signal dubbing system

Info

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
Application number
JP15851779A
Other languages
Japanese (ja)
Inventor
Mitsuo Fujita
Kazuo Negishi
Shigenori Onaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP15851779A priority Critical patent/JPS5680981A/en
Priority to US06/210,155 priority patent/US4396953A/en
Priority to GB8038708A priority patent/GB2067376B/en
Priority to FR8025659A priority patent/FR2471718B1/en
Priority to DE3046129A priority patent/DE3046129C2/en
Publication of JPS5680981A publication Critical patent/JPS5680981A/en
Pending legal-status Critical Current

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

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.
JP15851779A 1979-12-06 1979-12-06 Color video signal dubbing system Pending JPS5680981A (en)

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)

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