KR19990080074A - Video equipment to insert caption data and V-chip data when converting digital broadcasting signal into NTSC signal - Google Patents

Video equipment to insert caption data and V-chip data when converting digital broadcasting signal into NTSC signal Download PDF

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KR19990080074A
KR19990080074A KR1019980013067A KR19980013067A KR19990080074A KR 19990080074 A KR19990080074 A KR 19990080074A KR 1019980013067 A KR1019980013067 A KR 1019980013067A KR 19980013067 A KR19980013067 A KR 19980013067A KR 19990080074 A KR19990080074 A KR 19990080074A
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South Korea
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signal
ntsc
data
chip
decoder
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KR1019980013067A
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Korean (ko)
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KR100310044B1 (en
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이태성
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윤종용
삼성전자 주식회사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4348—Demultiplexing of additional data and video streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division

Abstract

본 발명은 수신받는 디지탈방송신호를 NTSC신호로 변환할 때 캡션(caption)데이터와 브이-칩(V-chip)데이터를 NTSC신호에 삽입할 수 있는 영상기기에 관한 것으로, 디지탈방송신호를 NTSC신호로 변환시 캡션기능과 브이-칩기능이 수행되는 영상을 현시할 수 있다.The present invention relates to a video device capable of inserting caption data and V-chip data into an NTSC signal when converting a received digital broadcast signal into an NTSC signal. When converting to an image, caption and V-chip functions can be displayed.

Description

디지탈방송신호를 ＮＴＳＣ신호로 변환시 캡션데이터와 브이-칩데이터를 삽입하는 영상기기Imaging device to insert caption data and V-chip data when converting digital broadcasting signal into NTSC signal

본 발명은 수신받는 디지탈방송신호를 NTSC신호로 변환가능한 기능을 갖는 영상기기(디지탈TV수상기)에 관한 것으로, 보다 상세하게는, 디지탈방송신호를 NTSC신호로 변환할 때 캡션데이터(caption data) 및 브이-칩데이터(V-chip data)를 NTSC신호에 삽입할 수 있는 영상기기에 관한 것이다.The present invention relates to a video apparatus (digital TV receiver) having a function capable of converting a received digital broadcast signal into an NTSC signal. More particularly, the present invention relates to caption data when converting a digital broadcast signal into an NTSC signal. The present invention relates to an imaging apparatus capable of inserting V-chip data into an NTSC signal.

디지탈TV수상기를 전반적으로 제어하는 제어부는 수신되는 디지탈방송신호에 포함된 캡션데이터와 브이-칩데이터를 직접 읽어들여 캡션기능과 브이-칩기능이 수행되도록 처리한다. 그리고, 디지탈TV수상기가 NTSC신호를 만들어 출력하는 경우 수신받는 디지탈방송신호를 NTSC신호로 변환하여 출력하는 데, 이 때 NTSC신호에는 캡션데이터와 브이-칩데이터가 없는 영상신호이다. 그래서, 화면에는 캡션기능과 브이-칩기능이 수행되지않은 영상이 현시된다.The control unit for controlling the digital TV receiver generally reads the caption data and the V-chip data included in the received digital broadcasting signal to process the caption function and the V-chip function. When the digital TV receiver generates and outputs an NTSC signal, the digital TV receiver converts the received digital broadcast signal into an NTSC signal and outputs the NTSC signal. In this case, the NTSC signal is a video signal without caption data and V-chip data. Thus, an image without a caption function and a V-chip function is displayed on the screen.

따라서, 본 발명에서는 수신받는 디지탈방송신호를 NTSC신호로 변환시 캡션데이터와 브이-칩데이터가 NTSC신호에 삽입되어 캡션기능과 브이-칩기능이 수행될 수 있도록 하는 영상기기를 제공하고자 한다.Accordingly, an aspect of the present invention is to provide a video device capable of performing a caption function and a V-chip function by inserting caption data and V-chip data into an NTSC signal when converting a received digital broadcasting signal into an NTSC signal.

도 1은 본 발명에 따른 제 1디지탈TV수상기의 개략적인 구성을 나타낸 블록도,1 is a block diagram showing a schematic configuration of a first digital TV receiver according to the present invention;

도 2는 본 발명에 따른 제 2디지탈TV수상기의 개략적인 구성을 나타낸 블록도.2 is a block diagram showing a schematic configuration of a second digital TV receiver according to the present invention;

<도면의 주요부분에 대한 설명><Description of main parts of drawing>

15, 21 : 제 1,2포맷변환부 10, 20 : 제 1,2제어부15, 21: first and second format conversion unit 10, 20: first and second control unit

16 : 스위치부16 switch unit

이와 같은 목적을 달성하기 위한 본 발명의 특징은 수신받는 디지탈방송신호를 NTSC신호로 변환가능한 기능을 갖는 영상기기에 있어서, 상기 영상기기를 제어하고, TS(Transport Stream)디코더에서 읽어들인 캡션데이터(caption data)와 브이-칩(V-chip)데이터를 NTSC신호로 변환하여 출력하는 제어부; 상기 제어부의 제어하에 상기 TS디코더에서 영상신호를 입력받아 NTSC신호로 변환하여 출력하는 포맷변환부; 및 상기 제어부의 제어하에 모니터상의 기설정된 위치에는 캡션기능과 브이-칩기능이 수행되도록 상기 제어부와 포맷변환부의 출력신호를 스위칭하여 모니터상으로 출력하는 스위치부를 구비하여 디지탈방송신호를 NTSC신호변환시 캡션데이터와 브이-칩데이터가 삽입되도록 하는 영상기기에 있다.A feature of the present invention for achieving the above object is in a video device having a function capable of converting a received digital broadcast signal into an NTSC signal, controlling the video device and reading caption data read from a TS (Transport Stream) decoder. a control unit for converting caption data and V-chip data into NTSC signals and outputting the NTSC signals; A format conversion unit which receives a video signal from the TS decoder and converts the image signal into an NTSC signal under the control of the controller; And a switch unit for switching the output signals of the control unit and the format conversion unit and outputting them to the monitor so that the caption function and the V-chip function are performed at a predetermined position on the monitor under the control of the control unit. It is in an imaging device to insert data and V-chip data.

이와 같은 목적을 달성하기 위한 본 발명의 다른 특징은 수신받는 디지탈방송신호를 NTSC신호로 변환가능한 기능을 갖는 영상기기에 있어서, 상기 영상기기를 제어하고, TS디코더에서 읽어들인 캡션데이터와 브이-칩데이터를 출력하는 제어부; 및 상기 제어부의 제어하에 상기 TS디코더에서 입력받는 영상신호와 상기 제어부에서 입력받는 캡션데이터와 브이-칩데이터를 NTSC신호로 변환하고, NTSC신호 출력시 기설정된 위치에 상기 캡션데이터와 브이-칩데이터의 NTSC신호를 삽입하여 모니터상으로 출력하는 포맷변환부를 구비하여 디지탈방송신호를 NTSC신호변환시 캡션데이터와 브이-칩데이터가 삽입되도록 하는 영상기기에 있다.Another feature of the present invention for achieving the above object is in a video device having a function capable of converting a received digital broadcast signal into an NTSC signal, the caption data and V-chip to control the video device and read from the TS decoder A controller for outputting data; And converting the caption data and the V-chip data received from the TS decoder and the caption data and the V-chip data received from the control unit into NTSC signals under the control of the controller, and the caption data and the V-chip data at a predetermined position when the NTSC signal is output. And a format conversion unit for inserting an NTSC signal and outputting it onto a monitor so that caption data and V-chip data are inserted when converting a digital broadcast signal into an NTSC signal.

첨부한 도면들을 참조하여 본 발명을 구현한 바람직한 실시 예들을 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명에 따른 제 1디지탈TV수상기의 개략적인 구성을 나타낸 블록도이다. 도시한 바와 같이 도 1의 제 1디지탈TV수상기는 제 1디지탈TV수상기를 전반적으로 제어하고, 캡션데이터와 브이-칩데이터를 읽어들여 출력하는 제 1제어부(10)를 포함한다. 또한, 제 1디지탈TV수상기는 안테나를 통하여 디지탈방송신호를 수신하여 IF신호를 출력하는 튜너(11)를 포함한다. 튜너(11)의 출력단에는 디지탈방송신호에 대해 입력받는 IF신호를 베이스밴드처리하여 출력하는 IF처리부(12), 입력받는 신호를 오류 검출 및 정정하여 출력하는 채널디코더(13), 입력받는 신호에서 영상신호를 분리하여 출력하는 TS(Transport Stream)디코더(14)가 순서대로 연결된다. TS디코더(14)의 출력단에는 입력받는 영상신호를 미리 설정된 디스플레이타입으로 포맷변환하여 디지탈신호(D-TV신호)로써 출력하고, NTSC신호변환시 입력받는 영상신호를 아날로그신호(NTSC신호)로 변환하여 출력하는 제 1포맷변환부(15)가 연결된다. 제 1제어부(10)와 제 1포맷변환부(15)의 출력단에는 제 1제어부(10)와 제 1포맷변환부(15)의 출력 NTSC신호를 선택하여 모니터상으로 출력하는 스위치부(16)가 연결되어 있다.1 is a block diagram showing a schematic configuration of a first digital TV receiver according to the present invention. As shown in FIG. 1, the first digital TV receiver of FIG. 1 includes a first control unit 10 which controls the first digital TV receiver as a whole and reads and outputs caption data and V-chip data. In addition, the first digital TV receiver includes a tuner 11 for receiving a digital broadcast signal through an antenna and outputting an IF signal. At the output of the tuner 11, an IF processor 12 for performing baseband processing on the IF signal received for the digital broadcast signal and outputting the channel decoder 13 for detecting and correcting an error in the received signal and outputting the received signal TS (Transport Stream) decoders 14 for separating and outputting video signals are connected in sequence. The output of the TS decoder 14 converts the input video signal into a preset display type and outputs it as a digital signal (D-TV signal), and converts the input video signal into an analog signal (NTSC signal) during NTSC signal conversion. An output first format converter 15 is connected. A switch unit 16 which selects output NTSC signals of the first control unit 10 and the first format conversion unit 15 to the output terminal of the first control unit 10 and the first format conversion unit 15 and outputs them on a monitor. Is connected.

이와 같이 구성된 제 1디지탈TV수상기의 NTSC신호변환시의 동작에 대해 알아보도록 한다.The operation of converting the NTSC signal of the first digital TV receiver configured as described above will be described.

안테나를 통하여 수신되는 디지탈방송신호는 튜너(11)를 통하여 IF처리부(12)로 입력된다. IF처리부(12)는 튜너(11)를 통하여 입력받는 IF신호를 베이스밴드처리하여 채널디코더(13)로 출력한다. 채널디코더(13)는 IF처리부(12)의 출력신호를 입력받아 오류 검출 및 정정하여 TS디코더(14)로 출력한다. TS디코더(14)는 채널디코더(13)의 출력신호를 입력받아 영상신호를 분리하여 제 1포맷변환부(15)로 출력한다. 그리고, 제 1제어부(10)는 TS디코더(14)에서 캡션데이터와 브이-칩데이터를 읽어들인다. 이 때, 제 1디지탈TV수상기가 NTSC신호변환의 동작을 않는다면 제 1제어부(10)는 읽어들인 캡션데이터와 브이-칩데이터를 직접 처리하여 미도시한 OSGM(On Screen Graphics & Mixer)으로 출력하고, 제 1포맷변환부(15)는 입력받은 영상신호를 미리 설정된 디스플레이타입으로 포맷변환하여 D-TV신호로써 OSGM으로 출력한다. 그러나, 디지탈TV수상기가 NTSC신호변환의 동작을 한다면, 제 1제어부(10)는 읽어들인 캡션데이터와 브이-칩데이터를 NTSC신호로 변환하여 스위치부(16)로 출력하고, 제 1포맷변환부(15)도 입력받은 영상신호를 NTSC신호로 변환하여 스위치부(16)로 출력한다. 그러면, 스위치부(16)는 모니터상에서 제 1제어부(10)에 의해 기설정된 위치에는 캡션데이터와 브이-칩데이터에 대한 신호가 현시되도록 제 1제어부(10)로부터 입력되는 NTSC신호와 제 1포맷변환부(15)로부터 입력되는 NTSC신호를 스위칭하여 모니터상으로 출력한다.The digital broadcast signal received through the antenna is input to the IF processor 12 through the tuner 11. The IF processor 12 performs baseband processing on the IF signal received through the tuner 11 and outputs the result to the channel decoder 13. The channel decoder 13 receives an output signal from the IF processor 12 and detects and corrects an error, and outputs the result to the TS decoder 14. The TS decoder 14 receives the output signal of the channel decoder 13, separates the video signal, and outputs the video signal to the first format converter 15. The first controller 10 reads caption data and V-chip data from the TS decoder 14. At this time, if the first digital TV receiver does not operate the NTSC signal conversion, the first controller 10 directly processes the read caption data and the V-chip data and outputs the same to the OSGM (On Screen Graphics & Mixer). The first format converter 15 converts the received video signal into a preset display type and outputs the converted video signal to the OSGM as a D-TV signal. However, if the digital TV receiver operates NTSC signal conversion, the first control unit 10 converts the read caption data and the V-chip data into NTSC signals and outputs them to the switch unit 16, and the first format conversion unit. (15) also converts the received video signal to an NTSC signal and outputs it to the switch unit (16). Then, the switch unit 16 inputs the NTSC signal and the first format inputted from the first control unit 10 so that the caption data and the V-chip data are displayed at the position preset by the first control unit 10 on the monitor. The NTSC signal input from the converter 15 is switched and output on the monitor.

도 2는 본 발명에 따른 제 2디지탈TV수상기의 개략적인 구성을 나타낸 블록도이다. 도 2의 제 2디지탈TV수상기는 제 2디지탈TV수상기를 전반적으로 제어하고, 캡션데이터와 브이-칩데이터를 읽어들여 출력하는 제 2제어부(20)와 상술한 제 1디지탈TV수상기에서 튜너(11), IF처리부(12), 채널디코더(13), TS디코더(14)를 동일하게 포함한다. 그리고, TS디코더(14)의 출력단에는 TS디코더(14)의 출력신호와 제 2제어부(20)의 출력신호를 입력받아 NTSC신호로 변환하여 모니터상으로 출력하는 제 2포맷변환부(21)가 연결된다.2 is a block diagram showing a schematic configuration of a second digital TV receiver according to the present invention. The second digital TV receiver of FIG. 2 controls the second digital TV receiver as a whole, the second control unit 20 which reads and outputs caption data and V-chip data, and the tuner 11 in the above-described first digital TV receiver. ), The IF processor 12, the channel decoder 13, and the TS decoder 14 are included in the same manner. At the output end of the TS decoder 14, a second format converter 21 which receives the output signal of the TS decoder 14 and the output signal of the second control unit 20, converts it into an NTSC signal and outputs it to the monitor. Connected.

이와 같은 구성을 이루는 제 2디지탈TV수상기의 NTSC신호변환시의 동작에 대해 설명하도록 한다.The operation of converting the NTSC signal of the second digital TV receiver having the above configuration will be described.

제 2디지탈TV수상기의 구성부분에서 튜너(11), IF처리부(12), 채널디코더(13), TS디코더(14)의 동작은 상술한 제 1디지탈TV수상기에서의 동작과 동일하다. 그리고, 제 2제어부(20)는 TS디코더(14)에서 캡션데이터와 브이-칩데이터를 읽어들인다. 이 때, 제 2디지탈TV수상기가 NTSC신호변환의 동작을 않는다면 제 2제어부(20)는 읽어들인 캡션데이터와 브이-칩데이터를 직접 처리하여 미도시한 OSGM으로 출력하고, 제 2포맷변환부(21)는 TS디코더(14)로부터 입력받은 영상신호를 미리 설정된 디스플레이타입으로 포맷변환하여 D-TV신호로써 OSGM으로 출력한다. 그러나, 제 2디지탈TV수상기가 NTSC신호변환의 동작을 한다면, 제 2제어부(20)는 읽어들인 캡션데이터와 브이-칩데이터를 제 2포맷변환부(21)로 출력한다. 그리고, 제 2포맷변환부(21)는 TS디코더(14)로부터 입력받은 영상신호와 제 2제어부(20)로부터 입력받은 캡션데이터와 브이-칩데이터를 NTSC신호로 변환하고, NTSC신호를 출력시 기설정된 위치에 캡션데이터와 브이-칩데이터의 NTSC신호를 삽입하여 모니터상으로 출력한다.The operation of the tuner 11, the IF processor 12, the channel decoder 13, and the TS decoder 14 in the components of the second digital TV receiver are the same as those of the first digital TV receiver described above. The second controller 20 reads caption data and V-chip data from the TS decoder 14. At this time, if the second digital TV receiver does not operate the NTSC signal conversion, the second control unit 20 directly processes the read caption data and the V-chip data and outputs them to the OSGM (not shown). 21) converts the video signal received from the TS decoder 14 to a preset display type and outputs it to the OSGM as a D-TV signal. However, if the second digital TV receiver operates NTSC signal conversion, the second control unit 20 outputs the read caption data and the V-chip data to the second format conversion unit 21. The second format converter 21 converts the video signal input from the TS decoder 14 and the caption data and the V-chip data received from the second controller 20 into NTSC signals, and outputs NTSC signals. NTSC signals of caption data and V-chip data are inserted into the preset positions and output on the monitor.

상술한 바와 같이, 수신받는 디지탈방송신호를 NTSC신호로 변환시 캡션데이터와 브이-칩데이터가 삽입되므로 캡션기능과 브이-칩기능이 수행되는 영상이 현시된다.As described above, when the received digital broadcasting signal is converted into an NTSC signal, the caption data and the V-chip data are inserted, thereby displaying an image in which the caption function and the V-chip function are performed.

Claims (4)

수신받는 디지탈방송신호를 NTSC신호로 변환가능한 기능을 갖는 영상기기에 있어서,In an image device having a function of converting a received digital broadcasting signal into an NTSC signal, 상기 영상기기를 제어하고, TS(Transport Stream)디코더에서 읽어들인 캡션데이터(caption data)와 브이-칩(V-chip)데이터를 NTSC신호로 변환하여 출력하는 제어부;A control unit which controls the video device and converts caption data and V-chip data read from a TS (transport stream) decoder into NTSC signals; 상기 제어부의 제어하에 상기 TS디코더에서 영상신호를 입력받아 NTSC신호로 변환하여 출력하는 포맷변환부; 및A format conversion unit which receives a video signal from the TS decoder and converts the image signal into an NTSC signal under the control of the controller; And 상기 제어부의 제어하에 모니터상의 기설정된 위치에는 캡션기능과 브이-칩기능이 수행되도록 상기 제어부와 포맷변환부의 출력신호를 스위칭하여 모니터상으로 출력하는 스위치부를 구비하여 디지탈방송신호를 NTSC신호변환시 캡션데이터와 브이-칩데이터가 삽입되도록 하는 영상기기.The control unit controls a caption function and a V-chip function at a predetermined position on the monitor to switch the output signal of the control unit and the format conversion unit to the monitor to output the caption data when converting the digital broadcast signal to the NTSC signal. Imaging device to insert V-chip data. 제 1항에 있어서, 상기 디지탈방송신호를 NTSC신호로 변환하지않는 경우 상기 제어부는 캡션데이터와 브이-칩데이터를 직접 처리하여 OSGM(On Screen Graphics & Mixer)으로 출력하고, 상기 포맷변환부는 상기 TS디코더에서 입력받는 영상신호를 미리 설정된 디스플레이타입으로 포맷변환하여 상기 OSGM으로 출력하는 것을 특징으로 하는 영상기기.The method of claim 1, wherein when the digital broadcasting signal is not converted into an NTSC signal, the control unit directly processes caption data and V-chip data and outputs the same to an on-screen graphics & mixer (OSGM), and the format conversion unit performs the TS. And converting the video signal received from the decoder into a predetermined display type and outputting the converted video signal to the OSGM. 수신받는 디지탈방송신호를 NTSC신호로 변환가능한 기능을 갖는 영상기기에 있어서,In an image device having a function of converting a received digital broadcasting signal into an NTSC signal, 상기 영상기기를 제어하고, TS디코더에서 읽어들인 캡션데이터와 브이-칩데이터를 출력하는 제어부; 및A controller for controlling the video device and outputting caption data and V-chip data read from a TS decoder; And 상기 제어부의 제어하에 상기 TS디코더에서 입력받는 영상신호와 상기 제어부에서 입력받는 캡션데이터와 브이-칩데이터를 NTSC신호로 변환하고, NTSC신호 출력시 기설정된 위치에 상기 캡션데이터와 브이-칩데이터의 NTSC신호를 삽입하여 모니터상으로 출력하는 포맷변환부를 구비하여 디지탈방송신호를 NTSC신호변환시 캡션데이터와 브이-칩데이터가 삽입되도록 하는 영상기기.Under the control of the control unit, the video signal input from the TS decoder and the caption data and V-chip data input from the control unit are converted into NTSC signals, and the caption data and the V-chip data are stored at a predetermined position when the NTSC signal is output. And a format conversion unit for inserting an NTSC signal and outputting it onto a monitor so that caption data and V-chip data are inserted when converting a digital broadcast signal into an NTSC signal. 제 3항에 있어서, 상기 디지탈방송신호를 NTSC신호로 변환하지않는 경우 상기 제어부는 캡션데이터와 브이-칩데이터를 직접 처리하여 OSGM으로 출력하고, 상기 포맷변환부는 상기 TS디코더에서 입력받는 영상신호를 미리 설정된 디스플레이타입으로 포맷변환하여 상기 OSGM으로 출력하는 것을 특징으로 하는 영상기기.4. The method of claim 3, wherein the controller converts the caption data and the V-chip data directly to the OSGM when the digital broadcasting signal is not converted into an NTSC signal, and outputs the image signal received from the TS decoder. And converting the format into a preset display type and outputting the converted format to the OSGM.
KR1019980013067A 1998-04-13 1998-04-13 Digital tv for inserting caption data and v-chip data in converting digital broadcasting signal into ntsc signal KR100310044B1 (en)

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