KR870002729A - Magnetic recording and playback device - Google Patents

Magnetic recording and playback device Download PDF

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Publication number
KR870002729A
KR870002729A KR1019850005779A KR850005779A KR870002729A KR 870002729 A KR870002729 A KR 870002729A KR 1019850005779 A KR1019850005779 A KR 1019850005779A KR 850005779 A KR850005779 A KR 850005779A KR 870002729 A KR870002729 A KR 870002729A
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KR
South Korea
Prior art keywords
magnetic recording
reproducing apparatus
color signal
signal
input
Prior art date
Application number
KR1019850005779A
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Korean (ko)
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KR900005604B1 (en
Inventor
마사히로 혼죠오
Original Assignee
야마시다 도시히꼬
마쯔시다덴기산교 가부시기 가이샤
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
Priority claimed from JP59168251A external-priority patent/JPS6146691A/en
Priority claimed from JP60089218A external-priority patent/JPS61247186A/en
Application filed by 야마시다 도시히꼬, 마쯔시다덴기산교 가부시기 가이샤 filed Critical 야마시다 도시히꼬
Publication of KR870002729A publication Critical patent/KR870002729A/en
Application granted granted Critical
Publication of KR900005604B1 publication Critical patent/KR900005604B1/en

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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
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits 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
    • H04N9/78—Circuits 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 없음No content

Description

자기기록 재생장치Magnetic recording and playback device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 제1의 실시예에 의한 자기기록 재생장치의 기록계의 블록도.1 is a block diagram of a recording system of a magnetic recording and reproducing apparatus according to a first embodiment of the present invention.

제2도는 그 신호파형도.2 is a signal waveform diagram.

제5도는 본 발명의 제2의 실시예에 의한 자기기록 재생장치의 기록도5 is a recording diagram of the magnetic recording and reproducing apparatus according to the second embodiment of the present invention.

(2)(22)…빗살형필터 (23)(29)…지연소자 (26)(30)…검출회로(2) (22)... Comb filter 23, 29. Delay elements 26, 30... Detection circuit

(27)(28)…스위치회로 (59)…변환기 (60)…비교회로(27) (28)... Switch circuit 59. Converter 60... Comparison circuit

(52)(54)…1H지연회로 (55)(56)…검파회로 (57)…비교기(52) (54)... 1H delay circuit 55, 56... Detection circuit 57. Comparator

(61)(62)…OP앰프 (63)(64)…다이오우드(61) (62)... OP amplifiers 63 and 64. Diode

Claims (9)

색신호의 수직상관의 유무를 검출하는 검출수단과, 상기 수직상관이 소정량보다 약할 때에, 상기 색신호가 색신호의 기록 혹은 재생계에 포함되어 있는 빗살형필터를 통과하는 것을 지지하는 수단을 착설한 것을 특징으로 하는 자기기록 재생장치.Detecting means for detecting the presence or absence of vertical correlation of color signals, and means for supporting the color signal passing through a comb-shaped filter included in the recording or reproducing system of the color signal when the vertical correlation is weaker than a predetermined amount. Magnetic recording and reproducing apparatus. 제1항에 있어서, 기록계에 포함되어 있는 빗살형필터는, 입력영상신호를 휘도신호와 색신호로 분리하기 위한 빗살형필터인 것을 특징으로 하는 자기기록 재생장치.The magnetic recording and reproducing apparatus according to claim 1, wherein the comb filter included in the recording system is a comb filter for separating the input video signal into a luminance signal and a color signal. 제1항에 있어서, 재생계에 포함되어 있는 빗살형필터는, 재생색신호의 잡음저감에 사용되고 있는 것을 특징으로 하는 자기기록 재생장치.The magnetic recording and reproducing apparatus according to claim 1, wherein the comb filter included in the reproduction system is used for noise reduction of reproduction color signals. 제1항에 있어서, 색신호의 수직상관을 검출하는 검출수단은, 상기 색신호와 1수평주기 이전의 색신호와의 진폭 혹은 위상의 상관을 검출하는 것을 특징으로 하는 자기기록 재생장치.The magnetic recording and reproducing apparatus according to claim 1, wherein the detecting means for detecting the vertical correlation of the color signal detects a correlation between an amplitude or a phase of the color signal and the color signal before one horizontal period. 입력색신호의 진폭 및 위상의 수직방향의 변화를 함께 진폭방향의 변화로 변환해서 출력하는 변환기의 출력을 소정시간 지연한 지연신호의 진폭레벨과 상기 변환기의 출력의 진폭레벨을 비교하는 비교회로를 갖추고, 입력색신호의 진폭 및 위상의 수직방향의 변화를 상기 변환기에 의해 한번 진폭방향의 변화로 변환한 후에, 상기 비교회로에 의해 진폭레벨을 비교함으로서, 상기 입력색신호의 수직상관을 검출하는 것을 특징으로 하는 자기기록 재생장치.And a comparison circuit for comparing the amplitude level of the delayed signal with the delay of a predetermined time delayed output of the converter which converts the amplitude of the input color signal and the change in the vertical direction of the phase together with the change in the amplitude direction. And converting the change in the vertical direction of the amplitude and phase of the input color signal into the change in the amplitude direction once by the transducer, and then comparing the amplitude levels by the comparison circuit, thereby detecting the vertical correlation of the input color signal. Magnetic recording and reproducing apparatus. 제5항에 있어서, 변환기는, 입력신호를 소정기간 지연시키는 제1의 지연회로와, 상기 제1의 지연회로의 출력과 상기 입력신호를 합성하는 합성기로 구성되는 것을 특징으로 하는 자기기록 재생장치.6. The magnetic recording and reproducing apparatus according to claim 5, wherein the converter comprises a first delay circuit for delaying an input signal for a predetermined period, and a synthesizer for synthesizing the output of the first delay circuit and the input signal. . 제5항에 있어서, 비교회로는, 입력신호를 소정기간 지연시키는 제2의 지연회로와, 입력신호를 검파하는 제1의 검파기와, 상기 제2의 지연회로의 출력을 검파하는 제2의 검파기와, 상기 제1 및 제2의 검파기의 출력레벨을 비교하는 비교기로 구성되는 것을 특징으로 하는 자기기록 재생장치.The comparison circuit according to claim 5, wherein the comparison circuit includes a second delay circuit for delaying the input signal for a predetermined period, a first detector for detecting the input signal, and a second detector for detecting the output of the second delay circuit. And a comparator for comparing output levels of the first and second detectors. 제5항에 있어서, 소정기간을, 1수평주기기간으로 하는 것을 특징으로 하는 자기기록 재생장치.6. The magnetic recording and reproducing apparatus according to claim 5, wherein the predetermined period is one horizontal period period. 제5항에 있어서, 변환기의 입력단 혹은 후단, 혹은 비교회로의 전단에, 색신호성분을 통과시키는 대역 필터를 구비한 것을 특징으로 하는 자기 기록 재생장치.6. The magnetic recording and reproducing apparatus according to claim 5, wherein a band pass filter is provided at the input end or the rear end of the converter or at the front end of the comparison circuit to pass the color signal components. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019850005779A 1984-08-11 1985-08-10 Magnetic recording and playback device KR900005604B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP59-168251 1984-08-11
JP168251 1984-08-11
JP59168251A JPS6146691A (en) 1984-08-11 1984-08-11 Magnetic recording and reproducing device
JP60089218A JPS61247186A (en) 1985-04-25 1985-04-25 Signal processing circuit
JP89218 1985-04-25
JP60-89218 1985-04-25

Publications (2)

Publication Number Publication Date
KR870002729A true KR870002729A (en) 1987-04-06
KR900005604B1 KR900005604B1 (en) 1990-07-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850005779A KR900005604B1 (en) 1984-08-11 1985-08-10 Magnetic recording and playback device

Country Status (1)

Country Link
KR (1) KR900005604B1 (en)

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Publication number Publication date
KR900005604B1 (en) 1990-07-31

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