KR920006748Y1 - Electronic to electronic monitor circuit of video reproducing device - Google Patents

Electronic to electronic monitor circuit of video reproducing device Download PDF

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Publication number
KR920006748Y1
KR920006748Y1 KR2019890019088U KR890019088U KR920006748Y1 KR 920006748 Y1 KR920006748 Y1 KR 920006748Y1 KR 2019890019088 U KR2019890019088 U KR 2019890019088U KR 890019088 U KR890019088 U KR 890019088U KR 920006748 Y1 KR920006748 Y1 KR 920006748Y1
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South Korea
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signal
video
output
mode
processing unit
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KR2019890019088U
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Korean (ko)
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KR910012696U (en
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김상욱
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삼성전자 주식회사
강진구
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/44504Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02Control of operating function, e.g. switching from recording to reproducing
    • G11B15/026Control of operating function, e.g. switching from recording to reproducing by using processor, e.g. microcomputer
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02Control of operating function, e.g. switching from recording to reproducing
    • G11B15/12Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
    • G11B15/125Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams conditioned by the operating function of the apparatus
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/22Stopping means
    • 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
    • G11B20/10009Improvement or modification of read or write signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/765Interface circuits between an apparatus for recording and another apparatus
    • H04N5/775Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver

Abstract

내용 없음.No content.

Description

영상재생기의 재생모드 중 E-E화면 시청회로E-E screen viewing circuit in playback mode of video player

제1도는 본 고안의 회로도.1 is a circuit diagram of the present invention.

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

100 : 마이콤 110 : 시스템 제어부100: micom 110: system control unit

120 : 튜너부 130 : 음성신호 처리부120: tuner unit 130: voice signal processing unit

140 : 영상신호 처리부 150 : 고주파 변환기140: image signal processing unit 150: high frequency converter

TR1-TR4: 트랜지스터TR 1 -TR 4 : Transistor

본 고안은 비디오 테이프 레코더(VTR)나 비디오 디스크 플레이어(VDP)와 같이 영상을 재생할 수 있는 영상 재생기에 있어서, 정지 모드가 아닌 재생모드의 수행중에 외부로부터의 E-E(Electronic to Electronic) 화면을 시청할 수 있도록 한 영상재생기의 재생모드 중 E-E화면 시청 회로에 관한 것이다.According to the present invention, in a video player capable of playing back a video such as a video tape recorder (VTR) or a video disk player (VDP), it is possible to watch an EE (Electronic to Electronic) screen from the outside during the playback mode other than the stop mode. The present invention relates to an EE screen viewing circuit in a playback mode of a video player.

종래에는 재생되어진 영상신호를 텔레비젼 수상기를 통해 시청하는 재생모드를 수행하는 도중에 튜너를 통해 수신되는 텔레비젼 전파나 다른 기기로 부터 입력되는 라인 영상 신호를 시청하려면 모드를 E-E모드로 절환하여야 하며, 이 경우 데크는 정지모드는 변환되어 언로딩(Unloading)상태가 되고, 텔레비젼 수상기를 통해서는 기기외부로 부터 입력된 E-E신호 화면이 나타나게 된다.Conventionally, in order to watch a television signal received through a tuner or a line video signal input from another device while performing a playback mode in which a reproduced video signal is viewed through a television receiver, the mode must be switched to the EE mode. The deck is converted to the unloading state by changing the stop mode, and the EE signal screen input from the outside of the device is displayed through the TV receiver.

그러므로 E-E 화면을 시청하다가 다시 재생화면을 시청하기 위해 재생키를 누르게 되면 데크에서 테이프를 로딩시키기 위한 시간이 필요하게 되고, 풀 로딩(Full loading)방식의 경우에는 이 시간이 짧지만 그외의 방식에서는 이와같은 로딩 시간의 요구로 인해 재생 화면의 시청이 늦어지게 됨은 물론, 로딩 모터의 구동에 따른 간격 소모가 많아지게 되는 문제점이 있었다.Therefore, if you press the play key to watch the playback screen again while watching the EE screen, it takes time to load the tape from the deck, and this time is short for the full loading method, but in other methods Due to the demand of the loading time, the viewing of the playback screen is delayed, and there is a problem that the interval consumption due to the driving of the loading motor is increased.

본 고안은 상기와 같은 종래의 문제점을 해결하기 위하여, 재생 모드의 수행 도중에 E-E화면을 시청하게 되면 데크가 정지모드가 아닌 스틸(Still )모드로 동작되도록 함으로써 테이프의 로딩 상태를 그대로 유지하여 불필요한 로딩 동작을 행하는데 따른 시간과 전력 소모를 줄일 수 있게 안출한 것으로, 이를 첨부된 도면을 참조하여 설명하면 다음과 같다.The present invention is to solve the conventional problem as described above, when watching the EE screen during the playback mode, the deck is operated in a still (Still) mode instead of the stop mode by maintaining the loading state of the tape as it is unnecessary loading In order to reduce the time and power consumption according to the operation is described, with reference to the accompanying drawings as follows.

제1도는 본 고안의 재생모드 중 E-E화면 시청 회로도로서, 이에 도시된 바와같이 시스템 전체의 동작을 제어하는 마이콤(100)과, 마이콤(100)의 제어신호에 따라 음성 및 영상신호 처리부와 데크 구동부를 제어하여 재생 모드에서 E-E 화면을 시청할 경우 데크가 스틸 모드로 동작되도록 하는 트랜지스터(TR1-TR3)와 저항(R1)(R2)으로 된 시스템 제어부(110)와, 튜너에서 수신된 신호를 중간 주파신호로 변환 증폭한 뒤 영상 신호와 음성신호를 복조 분리하여 각 영상 및 음성신호 처리부로 인가하는 튜너부(120)와, 시스템 제어부(110)의 제어신호에 따라 음성신호를 재생하고 재생된 음성신호와 E-E 음성신호를 선택적으로 출력하는 음성신호 처리부(130)와, 시스템 제어부(110)의 제어신호에 따라 영상신호를 재생하고 재생 영상신호와 E-E 영상신호를 선택적으로 출력하는 영상신호 처리부(140)와, 상기 음성 및 영상신호 처리부(130)(140)의 출력을 혼합하여 수상기로 출력하는 고주파 변환기(150)둥을 연결해 구성하였다.FIG. 1 is an EE screen viewing circuit diagram of a reproduction mode of the present invention. As shown therein, a microcomputer 100 for controlling the operation of the entire system, and audio and video signal processing units and a deck driver according to control signals of the microcomputer 100 are shown. System control unit 110 comprising transistors TR 1 -TR 3 and resistors R 1 (R 2 ) for controlling the deck to operate in the still mode when watching the EE screen in the playback mode. Converts and amplifies the signal into an intermediate frequency signal, demodulates the video signal and the audio signal, and reproduces the audio signal according to the control signal of the tuner unit 120 and the system control unit 110 to apply to each video and audio signal processor. The audio signal processor 130 selectively outputs the reproduced audio signal and the EE audio signal, and reproduces the video signal according to the control signal of the system controller 110, and selectively outputs the reproduced video signal and the EE video signal. A video signal by mixing the output of the processor 140, the audio and video signal processor 130 140 was configured to connect the high frequency transducer 150 to output a round receiver for.

상기와 같이 구성된 본 고안의 작용효과를 상세히 설명하면 다음과 같다.Referring to the effect of the present invention configured as described above in detail.

먼저, 시스템이 재생모드로 동작할 경우 마이콤(100)의 재생 단자(PB)와 스틸단자로부터는 고전위 신호가 출력되므로 시스템 제어부(110)의 트랜지스터(TR1)의 베이스에 고전위 신호가 인가되어 트랜지스터(TR1)는 도통되고, 이때 마이콤(100)의 콘트롤 단자를 통해서는 저전위 신호가 출력되므로 트랜지스터(TR2)(TR3)가 도통되어 상기 트랜지스터(TR2)의 콜렉터에는 고전위 신호가 출력되고, 상기 고전위 신호는 시스템의 각 부로 공급되어 각부의 동작을 제어하게 되며, 트랜지스터(TR3)에서 출력된 고전위 신호는 테크구동부로 인가된다.First, when the system operates in the playback mode, the playback terminal (PB) and the still terminal of the microcomputer 100 Since the high potential signal is output from the high potential signal is applied to the base of the transistor TR 1 of the system control unit 110, the transistor TR 1 is turned on, and at this time, the control terminal of the microcomputer 100 Through the low potential signal is output through the transistor (TR 2 ) (TR 3 ) is conducted so that the high potential signal is output to the collector of the transistor (TR 2 ), the high potential signal is supplied to each part of the system to The operation is controlled, and the high potential signal output from the transistor TR 3 is applied to the tech driver.

여기서, 시스템내의 다른 부분의 동작을 보면, 튜너부(120)에서는 튜너(121)에 수신된 텔레비젼 전파의 수신 주파수에 국부 발진 주파수를 혼합하여 영상 중간 주파 신호로 변환하고, 이것을 중간 주파 중폭기(122)를 통해 중폭한 뒤 4.5㎒대역을 필터링하는 음성 분리 회로(123)에 인가함으로써 음성 신호를 분리해 내며, 리미터(124)에서 상기 음성 신호의 진폭 성분이 일정한 레벨로 제한되어 진폭의 변동이나 큰 진폭을 가지는 펄스성 잡음이 제거된 후 증폭되어 음성신호 처리부(130)로 출력된다.Here, in the operation of other parts of the system, the tuner unit 120 converts the local oscillation frequency into the video intermediate frequency signal by mixing the local oscillation frequency with the reception frequency of the television radio wave received by the tuner 121, and converts it into an intermediate frequency amplifier ( 122, the voice signal is separated by applying to the voice separation circuit 123 that filters the 4.5 MHz band, and the amplitude component of the voice signal is limited to a constant level at the limiter 124, so that The pulsed noise having a large amplitude is removed and then amplified and output to the voice signal processor 130.

또한 중간 주파 증폭기(122)에서 출력된 영상 중간 주파 신호는 음성 트랩 회로(125)에 의해서 음성신호가 제거되므로 영상 신호만이 분리되어 영상 증폭기(126)로 인가되고, 증폭된 영상 신호가 영상신호 처리부(140)로 출력된다.In addition, since the audio signal is removed by the audio trap circuit 125, only the video signal is separated and applied to the video amplifier 126, and the amplified video signal is output from the intermediate frequency amplifier 122. It is output to the processing unit 140.

음성신호 처리부(130)에서는 자기 테이프에 기록된 음성신호를 음성헤드로 픽업하여 전치중폭기(131)로 인가하는데, 상기 전치중폭기(131)는 재생 이퀼라이저 중폭기로서 기록시와 정반대의 주파수 특성을 가지며, 상기 전치 증폭기(131)에서 주파수 특성이 평탄해지도록 저역 성분이 높아지고 고역 성분이 낮아진 음성신호는 음성 뮤트 회로(132)를 거쳐 출력된다.The voice signal processing unit 130 picks up the voice signal recorded on the magnetic tape to the voice head and applies the preamplifier 131. The preamplifier 131 has a frequency characteristic opposite to that of recording as a reproduction equalizer heavy amplifier. In the preamplifier 131, the low frequency component is increased and the low frequency component is reduced so that the frequency characteristic is flat, and is output through the voice mute circuit 132.

그러므로 상기 시스템 제어부(110)에서 출력된 고전위 신호가 음성신호 처리부(130)의 EE/PB 제어회로(134)로 인가되면 EE/PB 제어회로(134)에서는 재생 신호가 선택되도록 스위치를 제어하여 음성 뮤트 회로(132)에서 출력된 재생된 음성신호가 라인 증폭기(135)를 거치면서 증폭되어 고주파 변환기(150)로 인가되고, 동시에 상기 시스템 제어부(110)의 고전위 출력 신호가 영상신호 처리부(140)의 트랜지스터(TR4)로 인가되면 상기 트랜지스터(TR4)가 도통되면서 튜너 및 외부 기기로 부터의 E-E 영상신호가 차단되므로 영상헤드(도시되지 않옴)에 의해 재생된 영상신호가 고주파 변환기(150)로 인가되면서 재생된 음성신호와 혼합되어 텔레비전 수상기를 통해서는 재생 화면을 시청할 수 있게 된다.Therefore, when the high potential signal output from the system controller 110 is applied to the EE / PB control circuit 134 of the voice signal processor 130, the EE / PB control circuit 134 controls the switch to select a playback signal. The reproduced voice signal output from the voice mute circuit 132 is amplified while being passed through the line amplifier 135 and applied to the high frequency converter 150. At the same time, the high potential output signal of the system controller 110 is inputted to the video signal processor. When the transistor TR 4 is applied to the transistor TR 4 , the EE image signal from the tuner and the external device is blocked while the transistor TR 4 is turned on, so that the image signal reproduced by the image head (not shown) is converted into a high frequency converter ( 150, the audio signal is mixed with the reproduced audio signal so that the reproduction screen can be viewed through the television receiver.

이와같은 상태에서 사용자가 E-E 화면을 시청하기 위해 모드를 절환하게 되면 마이콤(100)의 재생 단자(PB) 및 스틸 단자로 부터는 여전히 고전위 신호가 출력되지만, 콘트롤 단자-13,1b;PB/EE)를 통해서는 고전위 신호가 출력되므로 트랜지스터(TR2)(TR3)는 모두 오프되고, 이로 인해 재생 모드시 고전위 신호가 인가되던 데크 구동부로 저전위 신호가 인가되므로 데크가 스틸모드로 동작하여 테이프는 그대로 로딩 상태를 유지하게 된다.In this state, when the user switches the mode to watch the EE screen, the playback terminal (PB) and the still terminal of the microcomputer 100 The high potential signal is still output from, but since the high potential signal is output through the control terminals -13, 1b; PB / EE, the transistors TR 2 and TR 3 are all turned off, which causes the high voltage in the regeneration mode. Since the low potential signal is applied to the deck driver to which the above signal was applied, the deck operates in the still mode and the tape remains loaded.

또한 트랜지스터(TR2)가 오프되어 트랜지스터(TR1)에서 출력된 고전위 신호가 차단되므로 시스템 제어부(110)에서는 저전위 신호가 출력되어 음성 및 영상신호 처리부(130)(140)로 인가된다.In addition, since the transistor TR 2 is turned off and the high potential signal output from the transistor TR 1 is cut off, a low potential signal is output from the system controller 110 and applied to the audio and video signal processor 130 and 140.

그러므로 음성신호 처리부(130)의 EE/PB 제어회로(134)에서는 저전위신호가 입력됨에 따라 E-E 신호가 선택되도록 스우치를 제어하게 되고, 이것에 의해 라인잭을 통해 입력되는 라인 음성신호와 뉴류너부(120)로 부터 인가되는 텔레비젼 음성신호가 자동레벨 조절회로(133)를 거침으로써 그 레벨이 조절되어 라인 중폭기(135)로 입력되므로 중폭된 E-E 음성신호가 고주파 변환기(150)로 인가된다.Therefore, in the EE / PB control circuit 134 of the voice signal processor 130, as the low potential signal is input, the ouch signal is controlled so that the EE signal is selected. Since the television audio signal applied from the nucleus 120 passes through the automatic level control circuit 133 and its level is adjusted and input to the line heavy amplifier 135, the heavy EE audio signal is applied to the high frequency converter 150. .

영상신호 처리부(140)에서는 시스템 제어부(110)로 부터 저전위 신호가 인가됨에 따라 트랜지스터(TR4)가 오프되므로 자동 이득 조절회로(141)에는 투너부(120)로 부터 인가되는 텔레비젼 영상신호와 외부로 부터의 라인 영상 신호가 선택되어 입력되고, 입력 레벨의 변동에 대웅하여 일정한 출력 레벨을 갖도록 제어된 상기 E-E 영상신호는 중폭기(142)에 의해 중폭된 뒤 고주파 변환기(150)로 인가되어 음성신호와 혼합된다.Since the transistor TR 4 is turned off in response to the low potential signal being applied from the system controller 110 in the image signal processor 140, the automatic gain control circuit 141 may include a television video signal applied from the toner unit 120. The line image signal from the outside is selected and input, and the EE image signal controlled to have a constant output level in response to the variation of the input level is amplified by the heavy amplifier 142 and then applied to the high frequency converter 150. It is mixed with the audio signal.

따라서 마이콤이나 시스템 제어부에서는 기존과 같이 재생모드를 수행하지만 음성신호나 영상신호를 처리하는 신호계에서는 E-E 화면 전송 모드를 수행하게 되므로 텔레비젼 수상기를 통해서는 E-E 화면을 시청할 수 있게 되고, 이때 데크는 스틸 모드를 수행하게 되므로 재생 모드시와 같은 테이프의 로딩 상태가 그대로 유지된다.Therefore, the microcomputer or the system controller performs the playback mode as before, but the signal system processing the audio signal or the video signal performs the EE screen transmission mode, so that the EE screen can be viewed through the TV receiver. Because of this, the loading state of the tape as in the playback mode is maintained.

이상에서와 같이 본 고안은 재생모드의 수행 도중에 E-E 화면을 시청하게 될 경우 데크가 스틸 모드로 동작되도록 하여 이전의 로딩 상태를 그래도 유지함으로써 시청자가 짧은 시간에 다시 재생 화면을 시청할 수 있게 기다려야 하는 불편을 해소하였고, 테이프의 로딩 동작 횟수를 줄일 수 있으므로 기기의 전력 소모를 줄일 수 있는 효과가 있다.As described above, when the EE screen is watched while the play mode is being performed, the deck operates in the still mode, thereby maintaining the previous loading state so that the viewer has to wait for the play screen to be viewed again in a short time. This solves the problem and reduces the number of loading operations of the tape, thereby reducing the power consumption of the device.

Claims (1)

영상 및 옴성신호를 재생하도록 된 영상재생기에 있어서, 시스템전체의 동작을 제어하는 마이콤(100)과, 상기 마이콤(100)의 제어신호에 따라 재생모드에서 E-E 화면 모드 절환시 데크가 스틸모드로 동작되도록 제어하는 트랜지스터(TR1-TR3), 저항(R1)(R2)으로 된 시스템제어부(110)와, 튜너에서 수신된 신호를 중간주파 신호에 변환증폭한뒤 영상신호와 음성신호로 분리하는 튜너부(120)와, 상기 시스템제어부(110)의 제어신호에 따라 상기 튜너부(120)로 부터의 음성 또는 영상신호를 재생하고, 상기 재생음성영상신호와 E-E 옴성영상신호 각각을 선택적으로 출력하는 음성신호처리부(130)와, 영상신호처리부(140)와, 상기 옴성신호처리부(130), 영상신호처리부(140)의 출력을 혼합하여 수상기로 출력하는 고주파변환기(150)로 구성하여서된 것을 특징으로하는 영상재생기의 재생모드중 E-E 화면 시청회로.In a video player configured to reproduce video and omni signals, the microcomputer 100 controls the operation of the entire system and the deck operates in the still mode when the EE screen mode is switched from the playback mode according to the control signal of the microcomputer 100. The system control unit 110 comprising transistors TR 1 -TR 3 , resistors R 1 , R 2 , and the signal received from the tuner is converted into an intermediate frequency signal, and then converted into an image signal and an audio signal. A separate tuner 120 and a voice or video signal from the tuner 120 are reproduced according to the control signal of the system controller 110, and each of the reproduced audio video signal and the EE ohmic video signal are selectively selected. And a high frequency converter 150 for mixing the output of the audio signal processing unit 130, the video signal processing unit 140, the ohmic signal processing unit 130, and the video signal processing unit 140 to be output to the receiver. Image characterized in that During playback mode animation screen-EE circuit.
KR2019890019088U 1989-12-16 1989-12-16 Electronic to electronic monitor circuit of video reproducing device KR920006748Y1 (en)

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KR2019890019088U KR920006748Y1 (en) 1989-12-16 1989-12-16 Electronic to electronic monitor circuit of video reproducing device

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KR920006748Y1 true KR920006748Y1 (en) 1992-09-26

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