JPS5680982A - Color video signal dubbing system - Google Patents

Color video signal dubbing system

Info

Publication number
JPS5680982A
JPS5680982A JP15851879A JP15851879A JPS5680982A JP S5680982 A JPS5680982 A JP S5680982A JP 15851879 A JP15851879 A JP 15851879A JP 15851879 A JP15851879 A JP 15851879A JP S5680982 A JPS5680982 A JP S5680982A
Authority
JP
Japan
Prior art keywords
frequency
deterioration
low
signal
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
JP15851879A
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 JP15851879A priority Critical patent/JPS5680982A/en
Priority to US06/210,155 priority patent/US4396953A/en
Priority to FR8025659A priority patent/FR2471718B1/en
Priority to GB8038708A priority patent/GB2067376B/en
Priority to DE3046129A priority patent/DE3046129C2/en
Publication of JPS5680982A publication Critical patent/JPS5680982A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To eliminate the deterioration of frequency characteristics and the deterioration of picture quality and an inversion phenomenon due to beat interference 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 frequency-division multiplex signal recorded on recording medium A' 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 applied to one input terminal of mixer 25. Further, a luminance signal to be frequency-modulated is obtained from the above-mentioned reproduced signal by high- pass filter 15 and applied to the other input terminals of mixer 25 after the compensation of frequency deterioration, averaging of upper and lower side-band waves, the compensation of the frequency decrease of a carrier component, removal of fluctuations of amplitude, and removal of a disused low-frequency component. The output of mixer 25 is recorded on recording medium B. By such a dibbing system, the occurrence of an inversion phenomenon can be prevented, frequency characteritics, pulse characteristcs and linearity can be improved and beat interference is also reduced, so that the deterioration of picture quality is prevented.
JP15851879A 1979-12-06 1979-12-06 Color video signal dubbing system Pending JPS5680982A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP15851879A JPS5680982A (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
FR8025659A FR2471718B1 (en) 1979-12-06 1980-12-03 COLOR VIDEO SIGNAL COPYING SYSTEM
GB8038708A GB2067376B (en) 1979-12-06 1980-12-03 Colour video signal dubbing 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
JP15851879A JPS5680982A (en) 1979-12-06 1979-12-06 Color video signal dubbing system

Publications (1)

Publication Number Publication Date
JPS5680982A true JPS5680982A (en) 1981-07-02

Family

ID=15673486

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15851879A Pending JPS5680982A (en) 1979-12-06 1979-12-06 Color video signal dubbing system

Country Status (1)

Country Link
JP (1) JPS5680982A (en)

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