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KR0139678B1 - VEAL's Helper Signal Killer Device - Google Patents

VEAL's Helper Signal Killer Device

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Publication number
KR0139678B1
KR0139678B1 KR1019950000526A KR19950000526A KR0139678B1 KR 0139678 B1 KR0139678 B1 KR 0139678B1 KR 1019950000526 A KR1019950000526 A KR 1019950000526A KR 19950000526 A KR19950000526 A KR 19950000526A KR 0139678 B1 KR0139678 B1 KR 0139678B1
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KR
South Korea
Prior art keywords
signal
helper
pal
marker
composite video
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Application number
KR1019950000526A
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Korean (ko)
Other versions
KR960030114A (en
Inventor
장창근
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구자홍
엘지전자주식회사
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Priority to KR1019950000526A priority Critical patent/KR0139678B1/en
Publication of KR960030114A publication Critical patent/KR960030114A/en
Application granted granted Critical
Publication of KR0139678B1 publication Critical patent/KR0139678B1/en

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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/10527Audio or video recording; Data buffering arrangements

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

Abstract

본 발명은 PAL+브이씨알에서 녹화된 테이프를 일반 브이씨알에서 재생처리하는 기술에 관한 것으로, PAL+브이씨알에 의해 PAL+신호가 기록된 테이프를 PAL+브이씨알이 아닌 일반 브이씨알에서 재생처리하는 경우 헬퍼신호의 레벨이 높게 나타나므로 이를 4:3티브이에 디스플레이하는 경우 래터박스의 상,하단에 화이트색깔로 디스플레이되어 메인 화면을 감상하는데 방해가 되는 문제점이 있었는바, 본 발명은 이를 해결하기 위하여, 라인카운터(22), 수평블랭킹신호 발진기(23), 헬퍼마커(24)를 이용하여 헬퍼마커신호를 생성하고, 헬퍼킬러(21)는 그 헬퍼마커신호를 이용하여 입력복합영상신호(CVBS)에 삽입된 헬퍼신호를 삭제하며, 데이타검출부(26)의 출력신호를 이용하여 스위치(27)의 스위칭을 제어함으로서 출력단에는 헬퍼신호가 삭제된 복합영상신호를 출력하도록 하였다.The invention PAL + V a tape recorded in the CR relates to techniques for handling play in general V CR, the process reproduces the tape PAL + signal is recorded by the PAL + V CR in general V CR non-PAL + V CR If the level of the helper signal is high, if the 4: 3 TV is displayed on the upper and lower portions of the letterbox, the white color is displayed, and there is a problem that interferes with viewing the main screen. In order to generate a helper marker signal using the line counter 22, the horizontal blanking signal oscillator 23, and the helper marker 24, the helper killer 21 uses the helper marker signal to input the composite video signal (CVBS). ) And deletes the helper signal inserted into the control unit, and controls the switching of the switch 27 by using the output signal of the data detection unit 26. It was to output.

Description

브이씨알의 헬퍼신호 킬러장치VEAL's Helper Signal Killer Device

제1도는 본 발명의 헬퍼신호 킬러장치가 적용되는 부위를 보인 브이씨알의 헬퍼킬러 블록도.1 is a helper killer block diagram of V-AL showing a portion to which the helper signal killer device of the present invention is applied.

제2도는 제1도에서 헬퍼킬러장치의 상세 블록도.2 is a detailed block diagram of the helper killer device in FIG.

제3도의 (a)는 복조된 헬퍼신호가 삽입된 복합영상신호의 파형도.3A is a waveform diagram of a composite video signal in which a demodulated helper signal is inserted.

(b)는 복조된 헬퍼신호가 제거된 복합영상신호의 파형도.(b) is a waveform diagram of the composite video signal from which the demodulated helper signal is removed.

(c)는 헬퍼마커신호의 파형도.(c) is a waveform diagram of a helper marker signal.

제4도는 와이드스크린신호 그룹 2의 b6, b7의 정보표.4 is an information table of b6 and b7 of widescreen signal group 2. FIG.

*도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

11:헤드 12:전치증폭기11: head 12: preamplifier

13:재생처리부 14:헬퍼킬러장치13: Playback processing unit 14: helper killer device

15:온스크린부 16:입출력장치15: On-screen unit 16: I / O device

21:헬퍼킬러 22:라인카운터21: helper killer 22: line counter

23:수평블랭킹신호 발진기 24:헬퍼마커23: horizontal blanking signal oscillator 24: helper marker

25:데이타슬라이서 26:데이타검출부25: Data Slicer 26: Data Detector

본 발명은 PAL+브이씨알에서 녹화된 테이프를 일반 브이씨알에서 재생처리하는 기술에 관한 것으로, 특히 PAL+브이씨알에서 녹화된 테이프를 일반 브이씨알에서 재생할때 헬퍼신호도 같이 재생되어 화면에서 래터박스(Letter box)의 상,하부에 흰색으로 디스플레이되는 것을 방지하는데 적당하도록한 브이씨알의 헬퍼신호 킬러장치에 관한 것이다.The present invention relates to a technology for reproducing a tape recorded in PAL + V-Cal in a general VAL. In particular, when a tape recorded in PAL + V-Cal is reproduced in a general VC, a helper signal is also reproduced together so that a letter box is displayed on the screen. A helper signal killer device of V-Cal which is adapted to prevent the display of white letters on the upper and lower portions of a letter box.

일반적으로 PAL+신호를 PAL+브이씨알에 녹화할때, 색부반송파(fsc)로 변조된 헬퍼신호가 복조되어 휘도영역에 기록되고, 이를 PAL+브이씨알에서 다시 재생처리하여 헬퍼신호를 PAL+수신기를 통해 디스플레이하는 경우 별다른 문제점이 발생되지 않는다.In general, PAL + for when recording a PAL + V CR signal, the helper signal modulated with a color subcarrier (f sc) is demodulated and written in the luminance region, treated again reproducing this in PAL + V CR a helper signal PAL + Displaying through a receiver does not cause any problem.

그러나, PAL+브이씨알에 의해 PAL+신호가 기록된 테이프를 PAL+브이씨알이 아닌 일반 브이씨알에서 재생처리하는 경우 헬퍼신호의 레벨이 높게 나타나므로 이를 4:3티브이에 디스플레이하는 경우 래터박스의 상,하단에 화이트 색깔로 디스플레이되어 메인 화면을 감상하는데 방해가 되는 문제점이 있었다.However, PAL + When a tape PAL + signal is recorded by the V-CR treatment play in general V CR non-PAL + V CR therefore it appears that the level of the helper signal higher this 4: raeteo box when displaying the three TV There was a problem that the white color is displayed at the top and bottom to interfere with the main screen.

따라서, 본 발명의 목적은 PAL+브이씨알에 의해 PAL+신호가 기록된 테이프를 일반 브이씨알에서 재생처리할때 헬퍼신호를 검출하여 소거하는 장치를 제공함에 있다.Accordingly, it is an object of the present invention to provide an apparatus for erasing detects the helper signal in the handling play back a tape PAL + signal is recorded by PAL + v CR in general V CR to provide.

제1도는 본 발명의 헬퍼신호 킬러장치가 적용되는 부위를 보인 브이씨알의 헬퍼킬러 블록도로서, 이에 도시한 바와 같이, 헤드(11)를 통해 독취되는 변조된 복합영상신호를 적정수준으로 증폭하는 전치증폭기(12) 및 재생처리하는 재생처리부(13)와, 상기 재생처리부(13)에서 출력되는 영상신호에 헬퍼신호가 삽입되어 있는지를 검출하여 그 헬퍼신호를 소거시키는 헬퍼킬러장치(14)와, 상기 헬퍼킬러장치(14)에서 출력되는 복합영상신호에 온스크린정보를 삽입하여 출력하는 온스크린부(15)와, 상기 온스크린부(15)의 출력신호를 휘도(Y)/색신호(C)분리하여 외부로 출력하는 입출력장치(16)로 구성하였다.FIG. 1 is a block diagram of a BT-AL helper killer showing a portion to which a helper signal killer device of the present invention is applied. As shown in FIG. A preamplifier 12 and a reproducing processor 13 for reproducing, and a helper killer device 14 for detecting whether a helper signal is inserted into the video signal output from the reproducing processor 13 and erasing the helper signal; On-screen unit 15 for inserting on-screen information into the composite video signal output from the helper killer device 14, and outputs the output signal of the on-screen unit 15 luminance (Y) / color signal (C) It was configured as an input / output device 16 for separating and outputting to the outside.

제2도는 제1도에서 헬퍼킬러장치의 상세 블록도로서 이에 도시한 바와 같이, 헬퍼마터(24)로부터 입력되는 헬퍼마커신호를 이용하여 복합영상신호(CVBS)에 삽입된 헬퍼신호를 소거하는 헬퍼킬러(21)와, 입력되는 복합영상신호(CVBS)의 라인을 카운트하여 헬퍼신호가 실려있는 구간을 체크하는 라인카운터(22)와, 수평블랭킹신호를 생성하는 수평블랭킹신호 발진기(23)와, 상기 라인카운터(22)에서 출력되는 신호와 수평블랭킹신호 발진기(23)에서 발생된 수평블랭킹신호를 합성하여 헬퍼마커신호를 생성하는 헬퍼마커(24)와, 복합영상신호(CVBS)를 슬라이싱하여 라인 23에 실려있는 와이드스크린신호(WSS)를 검출해내는 데이타슬라이서(25)와, 상기 데이타슬라이서(25)에서 출력되는 바이페이즈 코딩된 와이드스크린신호(WSS)를 근거로 스위칭제어신호를 출력하는 데이타검출부(26)와, 상기 데이타검출부(26)의 제어를 받아 헬퍼구간에서는 상기 헬퍼킬러(21)의 출력신호를 선택하고, 그 이외의 구간에서는 복합영상신호(CVBS)단자를 통해 입력되는 신호를 선택하여 출력하는 스위치(27)로 구성한 것으로, 이와 같이 구성한 본 발명의 작용 및 효과를 첨부한 제3도 및 제4도를 참조하여 상세히 설명하면 다음과 같다.FIG. 2 is a detailed block diagram of the helper killer device in FIG. 1, and as shown therein, a helper for erasing the helper signal inserted into the composite video signal CVBS using the helper marker signal input from the helper marker 24. A killer 21, a line counter 22 for counting a line of the input composite video signal CVBS and checking a section in which a helper signal is loaded, a horizontal blanking signal oscillator 23 for generating a horizontal blanking signal, The helper marker 24 which generates a helper marker signal by combining the signal output from the line counter 22 and the horizontal blanking signal oscillator 23 and generates a helper marker signal, and a composite video signal CVBS 23. A switching control signal is output based on a data slicer 25 that detects the wide screen signal WSS contained in 23 and a biphase coded widescreen signal WSS output from the data slicer 25. The output signal of the helper killer 21 is selected in the helper section under the control of the other detection unit 26 and the data detection unit 26, and the signal input through the composite video signal (CVBS) terminal in other sections. It is composed of a switch 27 for selecting and outputting, and will be described in detail with reference to FIGS.

먼저, 제1도를 참조하여 브이씨알의 전체적인 재생처리과정을 개략적으로 설명하면 하기와 같다.First, referring to FIG. 1, the overall regeneration treatment process of V-Cal will be described as follows.

테이프에 기록된 PAL+신호는 헤드(11)를 통해 독취된후 전치증폭기(12)를 통해 처리하기에 적당한 레벨로 증폭되고, 다시 재생처리부(13)를 통해 소정의 형식으로 재생처리된다.The PAL + signal recorded on the tape is read through the head 11, amplified to a level suitable for processing by the preamplifier 12, and then reproduced by a reproduction processing unit 13 in a predetermined format.

헬퍼킬러장치(14)는 상기 재생처리부(13)에서 출력되는 영상신호에 삽입된 와이드스크린신호(WSS)를 검출하여 현재 입력되고 있는 신호에 헬퍼신호가 실려있는지를 확인하게 되고, 그 결과 헬퍼신호가 실려 있으면 그 헬퍼신호를 삭제하여 출력하게 된다.The helper killer device 14 detects the wide screen signal WSS inserted in the video signal output from the playback processor 13 and checks whether the helper signal is loaded on the currently input signal. If is loaded, the helper signal is deleted and output.

이에 따라 상기 헬퍼킬러장치(14)에서 출력되는 영상신호에는 헬퍼신호가 존재하지 않게 되고, 그 신호가 온스크린부(15)를 통해 온스크린정보와 혼합된 후 입출력장치(16)를 통해 4:3 텔레비젼수상기측으로 공급되므로 그 텔레비젼수상기에는 헬퍼신호에 의한 화이트신호가 나타나지 않게 된다.Accordingly, the helper signal does not exist in the image signal output from the helper killer device 14, and the signal is mixed with the on-screen information through the on-screen unit 15 and then inputted through the input / output device 16. 3 Since it is supplied to the television receiver side, the white signal by the helper signal does not appear on the television receiver.

제2도를 참조하여 상기 헬퍼킬러장치(14)의 작용을 보다 상세하게 설명하면 다음과 같다.Referring to Figure 2 will be described in more detail the operation of the helper killer device 14 as follows.

입력 복합영상신호(CVBS:Composite Vertical Blanking Sync)에 PAL+신호인 헬퍼신호가 기록되어 있는 경우 이를 재생처리하면 제3도의 (a)와 같이 나타나며, 이 복합영상신호(CVBS)의 라인 23에 와이드스크린신호(WSS)가 실려 있으므로 헬퍼킬러장치(21)에서는 이 와이드스크린신호(WSS)를 검출하여 현재 어떤 형태의 헬퍼신호가 실려있는지를 인지하게 된다.If a helper signal, which is a PAL + signal, is recorded in the input composite video signal (CVBS), it is displayed as (a) of FIG. 3 when the playback process is performed. The line 23 of the composite video signal (CVBS) is wide. Since the screen signal WSS is loaded, the helper killer device 21 detects the widescreen signal WSS to recognize what type of helper signal is currently loaded.

제4도는 헬퍼정보가 기록되어 있는 WSS의 그룹 2의 정보내용을 보인 것으로, 이에 도시된 바와 같이 복조된 헬퍼신호의 정보내용(b6,b7)은 11이다. b7은 PAL+브이씨알에서 변조된 헬퍼신호를 복조하면서 0에서 1로 재기록된 것이다.4 shows the information content of Group 2 of the WSS in which the helper information is recorded. As shown in FIG. 4, the information content (b6, b7) of the demodulated helper signal is 11. b7 is rewritten from 0 to 1 demodulating the helper signal modulated in PAL + VC.

PAL+신호의 유무를 판별하기 위하여 데이타슬라이서(25)는 복합영상신호(CVBS)에서 라인 23에 실려있는 와이드스크린신호(WSS)를 검출해내고, 이렇게 검출된 와이드스크린신호(WSS)를 데이타검출부(26)에서 감지하여 바이페이즈(biphase) 코딩된 WSS신호를 NRZ신호로 변환하고, b6, b7신호를 근거로 입력 복합영상신호(CVBS)가 PAL+신호인지를 확인하여 복조된 헬퍼신호이면 삭제된 헬퍼신호를 출력하기 위하여 스위치(27)의 스위칭을 제어하게 된다.In order to determine the presence or absence of the PAL + signal, the data slicer 25 detects the wide screen signal WSS on the line 23 from the composite video signal CVBS and uses the detected wide screen signal WSS. In step 26, the biphase-coded WSS signal is converted into an NRZ signal, and if the input composite video signal CVBS is a PAL + signal based on the b6 and b7 signals, the demodulated helper signal is deleted. The switching of the switch 27 is controlled to output the helper signal.

헬퍼신호를 삭제하기 위해서는 제3도의 (c)가 헬퍼마커신호를 필요로하게 되는데, 이 헬퍼신호는 첫번째 필드의 24∼59라인, 275∼310라인, 두번째 필드의 336∼371라인, 587∼622라인에 각각 실려있다.In order to delete the helper signal, (c) of FIG. 3 requires a helper marker signal, which is 24 to 59 lines in the first field, 275 to 310 lines in the first field, and 336 to 371 lines in the second field, and 587 to 622. Each on the line.

라인카운터(22)는 입력되는 복합영상신호(CVBS)의 라인을 카운트하여 헬퍼신호가 실려있는 구간을 체크하게 된다. 헬퍼마커(24)는 그 라인카운터(22)에서 출력되는 신호와 수평블랭킹신호 발진기(23)에서 발생된 수평블랭킹신호를 합성하여 제3도의 (c)와 같은 헬퍼마커신호를 생성하여 이를 상기 헬퍼킬러(21)에 공급하게 된다.The line counter 22 checks the section in which the helper signal is loaded by counting the input line of the composite video signal CVBS. The helper marker 24 synthesizes the signal output from the line counter 22 and the horizontal blanking signal generated by the horizontal blanking signal oscillator 23 to generate a helper marker signal as shown in FIG. Supply to the killer 21.

헬퍼킬러(21)는 상기 헬퍼마커(24)로부터 입력되는 제3도의 (c)와 같은 헬퍼마커신호를 이용하여 복합영상신호(CVBS)에 존재하는 복조된 헬퍼신호를 삭제시키게 된다.The helper killer 21 deletes the demodulated helper signal present in the composite video signal CVBS by using the helper marker signal as shown in FIG. 3C input from the helper marker 24.

그리고, 상기 스위치(27)는 데이타 검출부(28)에 의해 헬퍼구간에서만 헬퍼킬러(21)의 출력단측에 단락되고 나머지 구간에서는 복합영상신호(CVBS) 단자측으로 단락되므로 결국, 이 스위치(27)에서 출력되는 복합영상신호에는 제3도의 (b)와 같이 헬퍼신호가 존재하지 않게 된다.In addition, the switch 27 is short-circuited to the output end side of the helper killer 21 only in the helper section by the data detector 28, and shortly to the composite video signal CVBS terminal side in the remaining section. The helper signal does not exist in the composite video signal output as shown in FIG.

이상에서 상세히 설명한 바와 같이, 본 발명은 PAL+브이씨알에 의해 PAL+신호가 기록된 테이프를 일반 브이씨알에서 재생처리할때 헬퍼신호를 검출하여 자동적으로 소거되게 함으로써 PAL+브이씨알이 아닌 다른 브이씨알을 통해서도 PAL+신호를 재생처리하여 정상적인 화면을 제공할 수 있는 효과가 있다.As described above, another V invention PAL + by the PAL + signal is recorded tape by the V CR to be automatically cleared to detect the helper signal in the handling play in general V CR non-PAL + V CR Through AL, PAL + signal can be reproduced to provide a normal picture.

Claims (1)

헬퍼마커(24)로부터 입력되는 헬퍼마커신호를 이용하여 복합영상신호(CVBS)에 삽입된 헬퍼신호를 소거하는 헬퍼킬러(21)와, 입력되는 복합영상신호(CVBS)의 라인을 카운트하여 헬퍼신호가 실려있는 구간을 체크하는 라인카운터(22)와, 수평블랭킹신호를 생성하는 수평블랭킹신호 발진기(23)와, 상기 라인카운터(22)에서 출력되는 신호와 수평블랭킹신호 발진기(23)에서 발생된 수평블랭킹신호를 합성하여 헬퍼마커신호를 생성하는 헬퍼마커(24)와, 복합영상신호(CVBS)를 슬라이싱하여 라인 23에 실려있는 와이드스크린신호(WSS)를 검출해내는 데이타슬라이서(25)와, 상기 데이타슬라이서(25)에서 출력되는 바이페이즈 코딩된 와이드스크린신호(WSS)를 근거로 스위칭제어신호를 출력하는 데이타검출부(26)와, 상기 데이타검출부(26)의 제어를 받아 헬퍼구간에서는 상기 헬퍼킬러(21)의 출력신호를 선택하고, 그 이외의 구간에서는 복합영상신호(CVBS)단자를 통해 입력되는 신호를 선택하여 출력하는 스위치(27)로 구성한 것을 특징으로 하는 브이씨알의 헬퍼신호 킬러장치.A helper killer 21 for erasing the helper signal inserted into the composite video signal CVBS using the helper marker signal input from the helper marker 24, and the helper signal by counting lines of the input composite video signal CVBS. Generated by the line counter 22 and the horizontal blanking signal oscillator 23 for generating a horizontal blanking signal, the signal output from the line counter 22 and the horizontal blanking signal oscillator 23. A helper marker 24 for synthesizing the horizontal blanking signal to generate a helper marker signal, and a data slicer 25 for slicing the composite video signal CVBS to detect the wide screen signal WSS on line 23; The data detector 26 outputs a switching control signal based on the bi-phase coded widescreen signal WSS output from the data slicer 25 and the helper section under control of the data detector 26. VP's helper signal killer comprising an output signal of the helper killer 21 and a switch 27 for selecting and outputting a signal input through the composite video signal (CVBS) terminal in other sections. Device.
KR1019950000526A 1995-01-13 1995-01-13 VEAL's Helper Signal Killer Device KR0139678B1 (en)

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KR0139678B1 true KR0139678B1 (en) 1998-07-15

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