KR100253552B1 - System control information record/reproduce system - Google Patents

System control information record/reproduce system Download PDF

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KR100253552B1
KR100253552B1 KR1019930004965A KR930004965A KR100253552B1 KR 100253552 B1 KR100253552 B1 KR 100253552B1 KR 1019930004965 A KR1019930004965 A KR 1019930004965A KR 930004965 A KR930004965 A KR 930004965A KR 100253552 B1 KR100253552 B1 KR 100253552B1
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South Korea
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system control
recording
control information
digital
control signal
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KR1019930004965A
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Korean (ko)
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KR940022376A (en
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조도현
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구자홍
엘지전자주식회사
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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02Recording, reproducing, or erasing methods; Read, write or erase circuits therefor

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  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE: A system for recording/reproducing control information is provided to record VCR(Video Cassette Recorder) control information, necessary for reproducing digital video information in a magnetic recording tape, in a lengthwise recording area of the tape, and to search a position on a track of the recorded control signal in a reproducing operation. CONSTITUTION: The first system controller(1) outputs a digital video processing control signal and a control signal, according to a digital video recording command from an external video medium. The first amplifier(2) amplifies the control signal in the first system controller(1) to a predetermined level, for outputting. A system control recording head(3) records the signal obtained in the first amplifier(2) in a magnetic recording medium(16). The first digital video processor(4) processes digital video signal inputted from external, according to the digital video processing control signal obtained in the first system controller(1). The second amplifier(5) amplifies the video signal obtained in the first digital video processor(4) to a predetermined level, for outputting. And a video recording head(6) records the video signal obtained in the second amplifier(5) in the magnetic recording medium(16).

Description

시스템 콘트롤 정보 기록 및 재생시시템System control information recording and playback system

제1도는 본 발명에 적용되는 시스템 콘트롤 정보 기록시스템 블럭 구성도.1 is a block diagram of a system control information recording system applied to the present invention.

제2도는 본 발명에 적용되는 시스템 콘트롤 정보 재생 시스템 블럭 구성도.2 is a block diagram of a system control information reproduction system applied to the present invention.

제3도는 제1도 및 제2도의 동작설명을 위한 자기기록테이프의 트랙구분도.3 is a track classification diagram of a magnetic recording tape for explaining the operation of FIG. 1 and FIG.

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

1, 12 : 제1, 제2시스템 콘트롤부 3 : 시스템 콘트롤 정보 기록헤드1, 12: 1st, 2nd system control part 3: System control information recording head

4, 15 : 제1, 제2 디지탈영상처리부 10 : 시스템 콘트롤 정보 재생헤드4, 15: first and second digital image processing unit 10: system control information playback head

본 발명은 시스템 콘트롤 정보기록 및 재생시스템에 관한 것으로, 특히 자기기록테이프에 디지탈 영상정보 기록시 재생이나 특수재생을 위해 필요한 브이씨알 제어정보를 테이프의 길이 방향의 기록 영역에 기록하여 변속재생시나 특수재생시 드럼 및 캡스턴 구동계와 같은 서보계 제어를 위한 정보로 사용하고자한 시스템 콘트롤 정보기록 및 재생시스템에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system control information recording and reproducing system. In particular, the VRC control information necessary for reproducing or special reproducing when recording digital image information on a magnetic recording tape is recorded in a recording area in the longitudinal direction of a tape, so that The present invention relates to a system control information recording and reproducing system intended to be used as information for controlling a servo system such as a drum and a capstan drive system during regeneration.

일반적으로 테이프상 기록트랙에는 영상신호, 음성신호, 콘트롤신호의 3개 신호를 기록하여 두는 트랙이 필요하며 여기서 영상신호는 테이프 폭 방향의 대부분에 기록하며 음성신호와 콘트롤 신호는 각각 테이프의 에지부분에 길이방향 기록 영역에 기록을 하게 된다.In general, a tape recording track requires a track that records three signals of a video signal, an audio signal, and a control signal, where the video signal is recorded in most of the tape width direction, and the audio signal and the control signal are respectively an edge portion of the tape. In the longitudinal recording area, recording is performed.

상기 콘트롤 신호의 기록에 있어서 종래에는 60Hz의 수직동기신호를 1/2로 분주하여 30Hz의 기준신호를 만들어 이것을 콘트롤 헤드에 가하여 테이프의 길이방향의 기록영역에 콘트롤 트랙 펄스신호로써 기록하였다.In the recording of the control signal, conventionally, a vertical synchronization signal of 60 Hz is divided into 1/2 to generate a 30 Hz reference signal, which is applied to the control head, and recorded as a control track pulse signal in the longitudinal recording area of the tape.

그러나 이러한 기록방식은 아날로그 방식이기에 기록된 콘트롤신호의 주파수가 30Hz이므로 재생시도 동일 모드로 재생을 하여야 한다.However, since this recording method is analog, the frequency of the control signal recorded is 30 Hz, so the playback should be performed in the same mode.

따라서 재생시 모드가 변하게 되면 콘트롤신호의 재생주파수가 변하게 되어 화면구성을 정확히 할 수 없는 문제점을 유발시킨다.Therefore, if the mode is changed during playback, the playback frequency of the control signal is changed, which causes the problem of inaccurate screen configuration.

또한 변속재생시나 특수 재생시에는 재생 주파수가 변하게 되므로 상기 콘트롤신호를 사용하기가 매우 불편한 문제점이 있었다.In addition, there is a problem that it is very inconvenient to use the control signal since the reproduction frequency is changed during shift reproduction or special reproduction.

따라서 본 발명의 목적은 자기기록테이프에 디지탈 영상정보 기록시 재생이나 특수재생을 위해 필요한 브이씨알 제어정보를 테이프의 길이방향의 기록영역에 기록하여 두었다가 재생시 상기 기록된 콘트롤신호의 트랙상의 위치만 찾으므로써 변속, 특수재생시에 화면구성이 용이토록 시스템 콘트롤 정보 기록 및 재생시스템을 제공함에 있다.Accordingly, an object of the present invention is to record the V-Cal control information necessary for reproducing or special reproducing at the time of recording digital image information on a magnetic recording tape in the recording area in the longitudinal direction of the tape, and then reproducing only the position on the track of the recorded control signal during reproducing. The present invention provides a system control information recording and reproducing system for easy screen configuration during shifting and special reproduction.

제1도는 본 발명에 적용되는 시스템 콘트롤 정보 기록시스템 블럭구성도로서, 외부 영상 매개체로부터 얻어진 디지탈 영상기록 명령에 따라 디지탈영상처리 제어신호 및 콘트롤 신호를 출력하는 제1시스템 콘트롤부(1)와, 상기 제1시스템콘트롤부(1)에서 얻어진 콘트롤 신호를 소정레벨 증폭시켜 출력하는 제1증폭부(2)와, 상기 제1증폭부(2)에서 얻어진 신호를 자기기록매체(16)에 기록하는 시스템 콘트롤 정복 기록 헤드(3)와, 상기 제1 시스템 콘트롤부(1)에서 얻어진 디지탈 영상처리 제어신호에 따라 외부로 부터 입력되는 디지탈 영상신호를 처리하는 제1디지탈 영상처리부(4)와, 상기 제1디지탈 영상처리부(4)로 부터 얻어진 영상신호를 소정레벨 증폭시켜 출력하는 제2증폭부(5)와, 상기 제2증폭부(5)에서 얻어진 영상신호를 자기기록매체(16)에 기록하는 영상기록헤드(6)로 구성한다.1 is a block diagram of a system control information recording system applied to the present invention, comprising: a first system controller 1 for outputting a digital image processing control signal and a control signal in accordance with a digital image recording command obtained from an external image medium; A first amplifier 2 for amplifying and outputting a control signal obtained by the first system controller 1 by a predetermined level, and recording the signal obtained by the first amplifier 2 on a magnetic recording medium 16 A system control conquest recording head 3, a first digital image processing unit 4 for processing a digital image signal input from the outside in accordance with a digital image processing control signal obtained by the first system control unit 1, and The second amplifier 5 for amplifying and outputting the video signal obtained from the first digital image processor 4 by a predetermined level, and the video signal obtained by the second amplifier 5 is recorded on the magnetic recording medium 16. doing Is composed of a recording head (6).

이와같이 구성한 본 발명에 적용되는 시스템 콘트롤 정보 기록 시스템의 작용 및 효과를 첨부한 도면 제3도를 참조하여 상세히 설명하면, 외부영상매개체로 부터 디지탈 영상기록 명령이 제1시스템 콘트롤부(1)에 입력되면 제1시스템 콘트롤부(1)는 변속, 특수재생 제어신호, 테이프특성, 기록밀도, 기록시간 등에 관한 시스템 콘트롤 신호를 출력하고 아울러 제1디지탈 영상처리부(4)를 제어하여 영상처리를 할 수 있도록 한다.The operation and effects of the system control information recording system applied to the present invention configured as described above will be described in detail with reference to FIG. 3 to which the digital image recording command is input from the external image medium to the first system controller 1. When the first system controller 1 outputs a system control signal regarding a shift, a special playback control signal, a tape characteristic, a recording density, a recording time, and the like, the first system controller 1 controls the first digital image processor 4 to perform image processing. Make sure

상기 제1시스템 콘트롤부(1)에서 출력된 시스템 콘트롤 신호는 제1증폭부(2)를 통해 소정레벨증폭되며 이 증폭된 시스템 콘트롤 정보를 시스템 콘트롤 정보 기록헤드(3)는 제3도에 도시한 자기기록매체(16)의 길이방향 기록영역(음성신호 기록 트랙 또는 제어펄스 기록 트랙)(7)(9)에 디지탈 정보로써 기록하게 된다.The system control signal output from the first system controller 1 is amplified by a predetermined level through the first amplifier 2, and the system control information recording head 3 is shown in FIG. In the longitudinal recording area (voice signal recording track or control pulse recording track) 7 and 9 of one magnetic recording medium 16, recording is performed as digital information.

아울러 외부로 부터 입력되는 디지탈 영상신호는 제1디지탈 영상처리부(4)를 통해 영상신호가 처리되고 이와같이 처리된 영상신호는 제2증폭부(5)를 통해 소정레벨 증폭되고 영상기록헤드(6)를 통해 제3도에 도시한 자기기록매체(16)의 영상기록영역(8)에 기록되어진다.In addition, the digital image signal input from the outside is processed by the first digital image processor 4, the image signal is processed by the second amplification section 5 is a predetermined level amplified by the image recording head (6) Is recorded in the image recording area 8 of the magnetic recording medium 16 shown in FIG.

이와같이 기록되어진 영상신호 및 시스템 콘트롤 정보를 재생시에는 시스템 콘트롤 정보가 기록되어진 트랙의 위치만 찾으므로써 간단히 재생을 할 수 있는데 이는 다음과 같다.When the video signal and system control information recorded as described above are reproduced, only the position of the track on which the system control information is recorded can be simply reproduced.

제2도는 본 발명에 적용되는 시스템 콘트롤 정보 재생시스템 블럭 구성도로서, 자기기록매체(16)에 기록되어진 시스템 콘트롤 정보를 읽어들이는 시스템 콘트롤 정보재생헤드(10)와, 상기 시스템 콘트롤 정보생헤드(10)에서 얻어진 콘트롤 신호를 소정레벨 증폭시켜 출력하는 제3증폭부(11)와, 상기 제3증폭부(11)에서 얻어진 시스템 콘트롤 신호를 인식하고 재생 및 특수재생에 따른 제어명령을 출력시키는 제2시스템 콘트롤부(12)와, 상기 자기기록매체(16)에 기록되어진 영상신호를 읽어들이는 영상재생헤드(13)와, 상기 영상재생헤드(13)로부터 얻어진 영상신호를 소정레벨 증폭시켜 출력하는 제4증폭부(14)와, 상기 제4증폭부(14)에서 얻어진 디지탈 영상신호를 처리하여 외부의 영상매개체에 영상정보를 출력하는 제2디지탈 영상처리부(15)로 구성한다.2 is a block diagram of a system control information reproducing system according to the present invention, which includes a system control information reproducing head 10 for reading system control information recorded on a magnetic recording medium 16, and the system control information reproducing head. A third amplifier 11 for amplifying and outputting the control signal obtained at (10) by a predetermined level; and for recognizing the system control signal obtained at the third amplifier 11 and outputting a control command according to the reproduction and the special reproduction. The second system controller 12, the video reproduction head 13 for reading the video signal recorded on the magnetic recording medium 16, and the video signal obtained from the video reproduction head 13 are amplified by a predetermined level. And a second digital image processor 15 which processes the digital image signal obtained by the fourth amplifier 14 and outputs image information to an external image medium.

이와같이 구성한 시스템 콘트롤 정보 재생시스템의 작용 및 효과를 첨부한 도면 제3도를 참조하여 상세히 설명하면 제3도에 도시한 자기기록매체(16)의 길이방향 기록영역(음성신호 기록 트랙 또는 콘트롤 신호 기록 트랙)(7)(9)에 기록 되어진 시스템 콘트롤 정보를 시스템 콘트롤 정보재생헤드(10)는 읽어들인다.The operation and effects of the system control information reproducing system configured as described above will be described in detail with reference to FIG. 3 attached to the longitudinal recording area (voice signal recording track or control signal recording) of the magnetic recording medium 16 shown in FIG. The system control information reproducing head 10 reads the system control information recorded in the tracks (7) and (9).

이와같이 읽어들인 시스템 콘트롤 정보는 제3증폭부(11)를 통해 소정레벨 증폭된 후 제2시스템 콘트롤부(12)에 입력되어진다.The system control information thus read is amplified by the third amplifier 11 to a predetermined level and then input to the second system controller 12.

이에 따라 제2시스템 콘트롤부(12)는 이 입력신호를 인식하고 트랙의 위치를 파악하여 화면구성을 위해 재생, 변속, 특수재생등에 관한 명령을 외부영상매개체로 출력시키게 된다.Accordingly, the second system controller 12 recognizes the input signal, grasps the position of the track, and outputs a command regarding playback, shifting, special playback, etc. to the external video media for screen configuration.

아울러 제3도에 도시한 자기기록매체(16)의 영상기록트랙(8)에 기록되어진 영상신호를 영상재생헤드(13)는 읽어들인다.In addition, the image reproducing head 13 reads the video signal recorded on the video recording track 8 of the magnetic recording medium 16 shown in FIG.

이와같이 영상재생헤드(13)를 통해 읽어들인 영상신호는 제4증폭부(14)를 통해 소정레벨 증폭된 후 제2디지탈 영상처리부(15)에 입력된다.The image signal read through the image reproduction head 13 is amplified by the fourth amplifier 14 and is input to the second digital image processor 15.

따라서 제2디지탈 영상처리부(15)는 이 입력 디지탈 영상신호를 처리하고 그 처리한 영상신호를 외부의 영상매개체에 출력시키게 되는 것이다.Therefore, the second digital image processor 15 processes the input digital image signal and outputs the processed image signal to an external image medium.

이상에서 상세히 설명한 바와같이 본 발명은 브이씨알의 제어를 위해 테이프 특성, 기록밀도, 기록시간, 변속재생, 특수재생에 관한 시스템 콘트롤 정보를 디지탈로써 자기기록 매체의 길이방향 기록영역에 기록 가능하기에 재생이나 특수재생시 상기와 같이 시스템 콘트롤 정보가 기록되어진 트랙의 위치만 파악함으로써 용이하게 재생을 할 수 있는 효과가 있다.As described in detail above, the present invention can digitally record system control information related to tape characteristics, recording density, recording time, shift reproduction, and special reproduction in the longitudinal recording area of the magnetic recording medium for the control of the VRC. During playback or special playback, it is possible to easily play back by grasping only the position of the track on which the system control information is recorded as described above.

Claims (3)

외부로부터 입력된 디지탈 영상기록 명령에 따라 디지탈 영상처리 제어신호 및 디지탈 시스템 콘트롤 신호를 출력하는 제1시스템 콘트롤수단과, 상기 제1시스템 콘트롤 수단에서 얻어진 디지탈 시스템 콘트롤신호를 소정레벨 증폭시켜 출력하는 제1증폭수단과, 상기 제1증폭수단에서 얻어진 디지탈 시스템 콘트롤 신호를 자기 기록매체에 기록하는 시스템 콘트롤 정보기록헤드와, 상기 제1시스템 콘트롤 수단에서 얻어진 디지탈 영상처리 제어신호에 따라 외부로 부터 입력되는 디지탈 영상신호를 처리하는 제1디지탈 영상 처리수단과, 상기 제1디지탈 영상처리수단에서 얻어진 디지탈 영상신호를 소정레벨 증폭시켜 출력하는 제2증폭수단과, 상기 제2증폭수단에서 얻어진 영상신호를 상기 자기기록매체에 기록하는 영상기록헤드를 포함하여 된것을 특징으로 한 시스템 콘트롤 정보 기록 시스템.A first system control means for outputting a digital image processing control signal and a digital system control signal according to a digital image recording command input from an external source, and a first level amplifying and outputting the digital system control signal obtained by the first system control means. A first amplifying means, a system control information recording head for recording the digital system control signal obtained by the first amplifying means to a magnetic recording medium, and a digital image processing control signal obtained from the first system control means to be input from the outside. A first digital image processing means for processing a digital video signal, second amplifying means for amplifying and outputting a predetermined level of the digital video signal obtained by said first digital image processing means, and a video signal obtained by said second amplifying means. Comprising an image recording head for recording on magnetic recording media System control information recording system. 제1항에 있어서, 시스템 콘트롤 신호는 상기 자기기록매체의 길이방향 기록 영역인 음성신호 기록 영역 또는 콘트롤 신호 기록영역에 기록함을 특징으로 한 시스템 콘트롤 정보 기록 시스템.2. The system control information recording system according to claim 1, wherein the system control signal is recorded in an audio signal recording area or a control signal recording area which is a longitudinal recording area of the magnetic recording medium. 자기기록매체에 기록되어진 디지탈 시스템 콘트롤 정보를 읽어들이는 시스템 콘트롤 정보 재생헤드와, 상기 시스템 콘트롤 정보 재생헤드에서 얻어진 디지탈 시스템 콘트롤 정보를 소정레벨 증폭시켜 출력하는 제1 증폭수단과 상기 제3증폭수단에서 얻어진 시스템 콘트롤 신호를 인식하고 재생 및 특수재생에 따른 제어명령을 출력시키는 제2시스템 콘트롤 수단과, 상기 자기기록매체에 기록되어진 영상신호를 읽어들이는 영상재생헤드와, 상기 영상재생헤드로 부터 얻어진 영상신호를 소정레벨 증폭시켜 출력하는 제2증폭수단과, 상기 제4증폭수단에서 얻어진 영상신호를 처리하고 외부영상매개체에 상기 처리한 영상신호 출력하는 제2디지탈 영상처리수단을 포함하여 된 것을 특징으로 한 시스템 콘트롤 정보 재생 시스템.A system control information reproduction head for reading digital system control information recorded on a magnetic recording medium, and first amplification means and third amplification means for amplifying and outputting a predetermined level of digital system control information obtained from the system control information reproduction head. Second system control means for recognizing the system control signal obtained from the < Desc / Clms Page number 9 > and outputting control commands for reproduction and special reproduction, from an image reproduction head for reading an image signal recorded on the magnetic recording medium, and A second amplifying means for amplifying and outputting the obtained video signal by a predetermined level, and a second digital video processing means for processing the video signal obtained by the fourth amplifying means and outputting the processed video signal to an external video medium. A system control information reproduction system characterized by the above-mentioned.
KR1019930004965A 1993-03-29 1993-03-29 System control information record/reproduce system KR100253552B1 (en)

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