KR840002792A - Color video signal recording device - Google Patents

Color video signal recording device Download PDF

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Publication number
KR840002792A
KR840002792A KR1019820004980A KR820004980A KR840002792A KR 840002792 A KR840002792 A KR 840002792A KR 1019820004980 A KR1019820004980 A KR 1019820004980A KR 820004980 A KR820004980 A KR 820004980A KR 840002792 A KR840002792 A KR 840002792A
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KR
South Korea
Prior art keywords
frequency
signal
output
converted
phase
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Application number
KR1019820004980A
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Korean (ko)
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KR850001024B1 (en
Inventor
노보루 고지마 (외2)
Original Assignee
미쓰다 가쓰시게
가부시기가이샤 히다찌세이사꾸쇼
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Priority claimed from JP56175673A external-priority patent/JPS5877387A/en
Priority claimed from JP56175677A external-priority patent/JPS5877390A/en
Priority claimed from JP56175678A external-priority patent/JPS5877391A/en
Application filed by 미쓰다 가쓰시게, 가부시기가이샤 히다찌세이사꾸쇼 filed Critical 미쓰다 가쓰시게
Publication of KR840002792A publication Critical patent/KR840002792A/en
Application granted granted Critical
Publication of KR850001024B1 publication Critical patent/KR850001024B1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/79Processing of colour television signals in connection with recording
    • H04N9/80Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/82Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
    • H04N9/83Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal
    • H04N9/84Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal the recorded signal showing a feature, which is different in adjacent track parts, e.g. different phase or frequency
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/77Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • H04N9/78Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

내용 없음.No content.

Description

컬러(Color)비듸오(Video)신호 기록장치Color video signal recording device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제5도는 본 발명에 따르는 실시예의 컬러 비듸오 신호의 녹화장치에서 색도 신호 주파수의 변환회로의 블럭 회로도를 표시한 것이다.5 shows a block circuit diagram of a conversion circuit of a chroma signal frequency in the recording apparatus of the color video signal of the embodiment according to the present invention.

제6도는 본 발명에 따르는 실시예인 1/8분주기(分周器)의 회로도.6 is a circuit diagram of a 1/8 divider, which is an embodiment according to the present invention.

제7도는 제6도에 표시한 회로 배치도의 동작을 나타내는 각부의 파형을 표시한 파형도표.FIG. 7 is a waveform diagram showing waveforms of respective parts representing the operation of the circuit arrangement diagram shown in FIG. 6. FIG.

Claims (3)

컬러 비듸오 신호로부터 휘도 신호와 색도 신호가 분리되고, 상기의 휘도 신호는 주파수 변조 신호로 변환되고, 상기의 색도 신호는 낮은 주파수로 변환되며, 상기의 주파수 변조된 휘도 신호와 상기의 주파수 변환된 색도 신호가 주파수의 다중화 형태로 기록 매체위에 기록이 되는 다음과 같은 것으로 구성되는 컬러비듸오 신호 기록장치; 상기의 컬러 비듸오 신호로 부터 분리된 상기의 색도 신호를 받아들이는 주파수 변환기(2)와 기준 신호를 발생하기 위한 기준발진기(10)과, 상기의 기준 발진기의 출력을 받고 매 수평 주기에 있어서 상기의 기준 발진기의 출력의 위상을 90° 또들 180°편이 시키는 위상 선택 회로(8)와 상기의 위상 선택회로의 출력을 상기의 주파수 변환기에 공급하고, 상기의 색도 신호의 주파수를 상기의 낮은 신호로 변환하기 위하여 상기의 색도 신호를 상기의 위상 선택회로의 출력과 혼합시키는 수단(5,6)과, 상기의 기준 발진기에 연결되고, 상기의 주파수 변환된 색도 신호의 주파수가 3/8N.fH(여기서 N은 실수, fH는 수평 주사 주파수)가 되고 동시에 1/N이 실수가 되어 이 경우 상술한 위상 선택 회로가 90°의 위상편이를 선택 하거나 또는 (3N-2)/4가 실수가 되어 상기의 위상 선택회로가 180°의 위상 편이를 선택하는 상술한 기준 발진기의 발진 주파수를 제어하기 위해 채택되는 제어 수단(48), 그리고 상기의 주파수 변환기의 출력에 연결되고 상기의 주파수 변환기의 출력에 연결되고 상기의 주파수 변환되어 낮은 주파수로 된 색도 신호를 얻어내기 위해 채택되는 수단(3).The luminance signal and the chroma signal are separated from the color video signal, the luminance signal is converted into a frequency modulated signal, the chroma signal is converted to a low frequency, and the frequency modulated luminance signal and the frequency converted A color video signal recording device comprising: a chroma signal being recorded on a recording medium in a multiplexed form of frequency; A frequency converter 2 which receives the chromaticity signal separated from the color video signal, a reference oscillator 10 for generating a reference signal, and the output of the reference oscillator and in every horizontal period The phase selector circuit 8 for shifting the phase of the output of the reference oscillator of 90 ° or 180 ° and the output of the phase selector circuit are supplied to the frequency converter, and the frequency of the chroma signal is changed to the low signal. of the chrominance signals and means (5, 6) for mixing the output of the phase selection circuit in order to convert, coupled to the reference oscillator, the frequency of the frequency-converted chrominance signal of the 3 / 8N.f H (Where N is a real number, f H is a horizontal scanning frequency) and at the same time 1 / N is a real number, the phase selection circuit described above selects a phase shift of 90 ° or (3N-2) / 4 Been above A control means 48 which is adapted for controlling the oscillation frequency of the above-mentioned reference oscillator which selects a phase shift of 180 degrees, and is connected to the output of said frequency converter and to the output of said frequency converter, Means (3) adapted to obtain said frequency-converted, low-frequency chromaticity signal. NTSC 방식의 컬러 비듸오 신호로 부터 휘도 신호와 색도 신호가 분리되고, 상기의 휘도 신호는 주파수 변조 신호로 변환되고, 상기의 색도 신호는 낮은 주파수로 변환되며, 상기의 주파수 변조된 휘도 신호와 상기의 주파수 변환된 색도 신호가 주파수 다중화 형태로 기록 매체 위에 기록되어지는 다음과 같이 구성되는 컬러 비듸오 신호 기록장치 상기의 컬러 비듸오 신호로 부터 분리된 상기의 색도 신호를 받아들이는 주파수 변환기(2)와, 기준신호 발생을 위한 전압제어 발진기(10)와, 상기의 전압제어 발진기 출력을 받아들여 그의 출력 주파수를 분주하는 제1의 주파수 분주기(2)와, 상기의 제1의 주파수분주기의 출력을 받아서 매 수평 주사 주기안에서 상기의 주파수 변환 방식의 출력위상을 90°또는 180°편이시키는 위상선택회로(8)와, 상기의 색도 신호의 주파수를 상기의 낮은 주파수로 변환하기 위하여 상기의 색도 신호를 상기의 위상 선택 회로의 출력과 혼합시키는 동작을 하는 상기의 주파수 변환기에 상기의 위상 선택회로의 출력을 공급하는 수단(5,6)과, 상기의 전압 제어 발진기 연결되고, 상기의 주파수 변환된 색도 신호의 주파수가 3/8H.fH(N은 실수 fH는 수평 주파수)가 되고 동시에 1/N이 실수가 되어 이 경우 상기의 위상 선택회로가 90°위상 편위를 선택하거나 또는 (3N-2)/4가 실수가 되어 상기의 위상 선택회로가 180°위상편이를 선택하는 상기의 전압제어 발진기의 발진 주파수를 제어하기 위해 채택되어진 제2의 주파수 분주 수단(12)과, 그리고 상기의 주파수 변환기의 출력에 연결되고, 상기의 주파수 변환된 색도 신호를 얻어내기 위해 채택되는 수단(3).A luminance signal and a chroma signal are separated from an NTSC color video signal, the luminance signal is converted into a frequency modulated signal, and the chroma signal is converted to a low frequency, and the frequency modulated luminance signal and the A color video signal recording apparatus in which a frequency-converted chromaticity signal of is recorded on a recording medium in the form of frequency multiplexing, the frequency converter receiving said chromaticity signal separated from said color video signal (2) And a voltage controlled oscillator 10 for generating a reference signal, a first frequency divider 2 which receives the output of the voltage controlled oscillator and divides its output frequency; A phase selection circuit (8) which receives the output and shifts the output phase of the frequency conversion method by 90 degrees or 180 degrees within every horizontal scanning period, Means (5,6) for supplying the output of said phase selector circuit to said frequency converter operable to mix said chromaticity signal with said output of said phase selector circuit to convert the frequency of said < RTI ID = 0.0 > to < / RTI > And the voltage controlled oscillator is connected, and the frequency of the frequency-converted chromaticity signal is 3 / 8H.f H (N is a real number f H is a horizontal frequency) and 1 / N is a real number in this case. Phase selector circuit is adopted to control the oscillation frequency of the above voltage controlled oscillator which selects a 90 ° phase shift or (3N-2) / 4 is a real number so that the phase selector circuit selects a 180 ° phase shift. Means (3) connected to a second frequency dividing means (12) and to an output of said frequency converter and adapted to obtain said frequency converted chromaticity signal. 상기의 제1의 분주기는 1/8분주기로 구성되고 상기 제2의 분주기는 최소한 하나의 1/3분주기로 구성되는 것을 특징으로 하는 특허 청구 범위 2의 컬러 비듸오 신호 녹화 장치.And said first divider comprises one eighth divider and said second divider comprises at least one third divider. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR8204980A 1981-11-04 1982-11-04 Color video signal recorder KR850001024B1 (en)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP56175673A JPS5877387A (en) 1981-11-04 1981-11-04 Pal system high density magnetic recorder and reproducer
JP175678 1981-11-04
JP56175677A JPS5877390A (en) 1981-11-04 1981-11-04 Chrominance signal processing circuit for video tape recorder
JP56175678A JPS5877391A (en) 1981-11-04 1981-11-04 Chroma signal recording circuit of ntsc system video tape recorder
JP57-53820 1982-04-02
JP175677 1982-04-02
JP57-37994 1982-04-02
JP56-175673 1982-04-02
JP37996 1986-03-15
JP175673 1987-07-14

Publications (2)

Publication Number Publication Date
KR840002792A true KR840002792A (en) 1984-07-16
KR850001024B1 KR850001024B1 (en) 1985-07-18

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Application Number Title Priority Date Filing Date
KR8204980A KR850001024B1 (en) 1981-11-04 1982-11-04 Color video signal recorder

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KR (1) KR850001024B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100475029B1 (en) * 1998-01-06 2005-07-18 삼성전자주식회사 Automatic correction device for delay characteristics during recording / playback of video signals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100475029B1 (en) * 1998-01-06 2005-07-18 삼성전자주식회사 Automatic correction device for delay characteristics during recording / playback of video signals

Also Published As

Publication number Publication date
KR850001024B1 (en) 1985-07-18

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