KR100310046B1 - Device for inputting and outputting video signal of digital tv - Google Patents

Device for inputting and outputting video signal of digital tv Download PDF

Info

Publication number
KR100310046B1
KR100310046B1 KR1019980011302A KR19980011302A KR100310046B1 KR 100310046 B1 KR100310046 B1 KR 100310046B1 KR 1019980011302 A KR1019980011302 A KR 1019980011302A KR 19980011302 A KR19980011302 A KR 19980011302A KR 100310046 B1 KR100310046 B1 KR 100310046B1
Authority
KR
South Korea
Prior art keywords
digital
converter
video signal
output
format
Prior art date
Application number
KR1019980011302A
Other languages
Korean (ko)
Other versions
KR19990076376A (en
Inventor
유은종
Original Assignee
윤종용
삼성전자 주식회사
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
Application filed by 윤종용, 삼성전자 주식회사 filed Critical 윤종용
Priority to KR1019980011302A priority Critical patent/KR100310046B1/en
Publication of KR19990076376A publication Critical patent/KR19990076376A/en
Application granted granted Critical
Publication of KR100310046B1 publication Critical patent/KR100310046B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • 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
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes

Abstract

PURPOSE: A video signal input and output apparatus of a digital TV is provided to connect to the other outer units conveniently, and to enlarge the application range by inputting and outputting video signals from the digital TV to outer units. CONSTITUTION: A video signal input and output device of a digital TV is composed of outer input and output terminals(17,18) connected to outer units to input and output a video signal; a format converter(12) converting video data into the standard format, and outputting luminance and two chrominance signals; a D/A(digital to analog) converter(16) outputting to the outer unit by converting the digital video signal from the format converter to the analog signal; an A/D(analog to digital) converter(19) converting the analog video signal from the outer unit into the digital signal; an OSGM(On Screen Graphic Mixer)(13) outputting an RGB analog video signal by adding additional information to the digital video data from the format converter or the A/D converter; and a CRT(cathode ray tube) driving unit actuated by the OSGM for output on the screen. The application range is enlarged with inputting and outputting the HD(high definition) standard video signal to the outer unit.

Description

디지털 ＴＶ의 비디오신호 입출력장치Video signal input / output device of digital TV

본 발명은 디지털(Digital) TV에 관한 것으로, 보다 상세하게는, 고화질(High Definition; HD)규격의 휘도신호(Y)와 두 색차신호(PR,PB)형식의 비디오신호를 외부기기와 입출력하기 위한 디지털 TV의 비디오신호 입출력장치에 관한 것이다.The present invention relates to a digital TV, and more specifically, to a high definition (HD) standard luminance signal (Y) and a video signal of two color difference signals (P R , P B ) format with an external device. A video signal input and output device of a digital TV for input and output.

현재, 디지털 TV 방송에 관한 표준화가 빠른 속도로 진전되고 있고 그중에는 구체적인 서비스를 시작한 것도 나오고 있다. 방송 서비스는 그 성격상 표준화의 중요성이 매우 높은 응용이다. 서비스면에서는 고화질, 고음질등의 엄격한 요구조건을 만족시키면서도 수상기를 적절한 가격으로 보급할 수 있어야 하는데, 이런 점에서 MPEG, 특히 MPEG2는 매우 적합한 기술규격이라 할 수 있다. 그래서, 현재 표준화가 진행되고 있는 디지털 방송시스템의 대부분이 영상부호화방식으로는 MPEG2 비디오를, 다중화방식으로는 MPEG2시스템을 채용하고 있다. 한편, 음성부호화방식으로는 MPEG2오디오를 이용하는 것과 그렇지 않은 것이 검토되고 있다. 현 단계에서 영상포맷은 모든포맷에 대응하면서 컴퓨터등 기타미디어와의 정합성을 고려해야 한다.At present, the standardization of digital TV broadcasting is rapidly progressing, among which specific services have begun. Broadcast service is an application that is very important in standardization. In terms of service, it must be able to supply an award-winning device at a reasonable price while satisfying strict requirements such as high quality and high sound quality. In this regard, MPEG, especially MPEG2, is a very suitable technical standard. Therefore, most of the digital broadcasting systems currently being standardized employ MPEG-2 video as the video encoding method and MPEG2 system as the multiplexing method. On the other hand, the use of MPEG2 audio as a voice encoding method is considered. At this stage, video formats should be compatible with all formats while considering the compatibility with other media such as computers.

하지만, 지금까지 제시된 디지털 TV는 외부입력단을 통해 일반방송규격의 포맷을 갖는 아날로그신호만을 입력받았기 때문에 사용범위의 제한이 있었다.However, the digital TV presented so far has only a limited range of use because it receives only an analog signal having a format of a general broadcasting standard through an external input terminal.

따라서, 본 발명의 목적은 전술한 점을 감안하여, 고화질(HD)규격인 1080i/33.75㎑(주사선수/라인주파수)의 휘도신호(Y)와 두 색차신호(PR,PB)형식의 비디오신호를 디지털 TV와 외부기기간에 입출력가능토록 하여 다른 외부기기와의 연결이 용이하도록 하는 디지털 TV의 비디오신호 입출력장치를 제공함에 있다.Accordingly, an object of the present invention, in view of the above-mentioned point, is that the luminance signal (Y) and the two color difference signals (P R , P B ) format of 1080i / 33.75 kHz (scanner / line frequency), which is a high definition (HD) standard The present invention provides a video signal input / output device of a digital TV that allows input and output of a video signal to a digital TV and external periods so as to facilitate connection with other external devices.

도 1은 본 발명이 적용된 디지털 TV의 일실시예를 나타내는 구성도,1 is a block diagram showing an embodiment of a digital TV to which the present invention is applied;

도 2는 본 발명이 적용된 디지털 TV의 다른 실시예를 나타내는 구성도.2 is a block diagram showing another embodiment of a digital TV to which the present invention is applied.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

11 : 중앙처리부(CPU) 12 : 포맷변환기11 central processing unit 12 format converter

13 : OSGM 14 : CRT구동기13: OSGM 14: CRT driver

15 : CRT 16 : D/A변환기15: CRT 16: D / A Converter

17,18 : 외부입출력단자 19 : A/D변환기17,18: External I / O terminal 19: A / D converter

20 : RGB변환기20: RGB converter

이와 같은 목적을 달성하기 위한 본 발명의 디지털 TV의 비디오신호 입출력장치는, 디지털 TV에 있어서, 외부기기와 연결하여 비디오신호를 입출력하기 위한 외부입출력단자와, 수신된 방송신호의 시청가능토록 복원된 비디오데이타를 미리 설정된 디스플레이규격으로 포맷 변환하여 휘도신호(Y)와 두 색차신호(PR,PB)형식으로 출력하기 위한 포맷변환기와, 상기 포맷변환기에서 포맷 변환된 휘도신호(Y)와 두 색차신호(PR,PB)형식의 디지털 비디오데이타를 아날로그형태로 변환하여 상기 외부출력단자에 연결된 외부기기로 출력하기 위한 D/A변환기와, 상기 외부입력단자에 연결된 외부기기로부터 입력되는 휘도신호(Y)와 두 색차신호(PR,PB)형식의 아날로그 비디오신호를 디지탈형태로 변환하기 위한 A/D변환기와, 상기 포맷변환기와 상기 A/D변환기중 하나에서 출력되는 디지털 비디오데이타에 화면에 나타낼 부가정보를 삽입하여 색신호(R,G,B)형식의 아날로그 비디오신호로 출력하는 OSGM, 및 상기 OSGM의 출력에 의해 구동되어 화면출력하는 CRT구동기를 포함한다.In order to achieve the above object, a video signal input / output device of a digital TV according to the present invention includes an external input / output terminal for inputting / outputting a video signal by connecting to an external device, and reconstructed to view a received broadcast signal. A format converter for converting the video data into a predetermined display standard and outputting the luminance signal Y and the two color difference signals P R and P B , and the luminance signal Y and the format converted by the format converter. D / A converter for converting digital video data of color difference signal (P R , P B ) into analog form and outputting it to an external device connected to the external output terminal, and luminance input from an external device connected to the external input terminal signal (Y) and two color difference signals (P R, P B) a / D converter, and the format converter and the a / D converter for converting analog video signals into digital format of the form OSGM which outputs analog video signal of color signal (R, G, B) format by inserting additional information to be displayed on the screen into digital video data outputted from one, and CRT driver driven and outputted by the output of the OSGM. do.

이하, 첨부한 도면들을 참조하여 본 발명의 바람직한 실시예를 상세히 기술하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명이 적용된 디지털 TV의 일실시예를 나타내는 구성도로서, 일반적인 디지털 TV의 구성을 모두 포함하며, 포맷변환기(12)와 OSGM(On Screen Graphic Mixer)(13) 사이에 포맷 변환된 고화질(HD)규격의 휘도신호(Y)와 두 색차신호(PR,PB)형식의 디지털 비디오데이타를 아날로그형태로 변환하기 위한 D/A변환기(16)와, 외부기기와 연결되어 D/A변환기(16)에서 아날로그 변환된 고화질(HD)규격의 비디오신호를 연결된 외부기기로 출력하기 위한 외부출력단자(17)를 추가로 포함한다. 또한, 외부기기와 연결되어 외부기기로부터 휘도신호(Y)와 두 색차신호(PR,PB)형식의 아날로그 비디오신호를 입력받기 위한 외부입력단자(18)와, 외부입력인 아날로그 비디오신호를 디지털형태로 변환하여 OSGM(13)으로 출력하는 A/D변환기(19)를 추가로 포함한다.1 is a block diagram showing an embodiment of a digital TV to which the present invention is applied, and includes all the configurations of a general digital TV, and is converted between a format converter 12 and an on screen graphic mixer (OSGM) 13. D / A converter 16 for converting high-definition (HD) luminance signal (Y) and digital video data of two color difference signals (P R , P B ) into analog form, and connected to an external device The A converter 16 further includes an external output terminal 17 for outputting a high-definition (HD) standard video signal analog-converted by the converter. In addition, an external input terminal 18 for receiving an analog video signal in the form of a luminance signal Y and two color difference signals P R and P B from an external device connected to an external device, and an analog video signal as an external input It further includes an A / D converter 19 that converts to a digital form and outputs it to the OSGM 13.

한편, 도 2는 본 발명이 적용된 디지털 TV의 다른 실시예를 나타내는 구성도로서, 도 1 실시예의 구성과 모두 동일하며, 단지 OSGM(13)과 CRT구동기(14) 사이에 외부입력을 받도록 외부입력단자(18)를 통해 외부기기로부터 입력되는 휘도신호(Y)와 두 색차신호(PR,PB)형식의 아날로그 비디오신호를 색신호(R,G,B)형태로 변환하여 CRT구동기(14)로 출력하는 RGB변환기(20)를 A/D변환기(19) 대신에 추가로 포함한다. 이러한 구성들을 갖는 도 1 및 도 2 디지털 TV의 비디오신호 입출력동작을 좀더 구체적으로 설명한다.On the other hand, Figure 2 is a configuration diagram showing another embodiment of the digital TV to which the present invention is applied, all the same as the configuration of the embodiment of Figure 1, the external input only to receive an external input between the OSGM 13 and the CRT driver 14 The CRT driver 14 converts a luminance signal Y input from an external device through the terminal 18 and an analog video signal in the form of two color difference signals P R and P B into color signal R, G and B forms. In addition to the A / D converter 19, the RGB converter 20 for outputting as an additional. The video signal input / output operations of Figs. 1 and 2 digital TVs having these configurations will be described in more detail.

통상의 디지털 TV는, 수신되는 디지털 방송신호 및 일반방송신호를 CRT(15)에 디스플레이가능토록 처리하며, 그중 하나를 현재의 시청모드에 따라 선택하여 CRT(15)에 디스플레이한다. 이때, 포맷변환기(12)는 시청가능토록 복원된 디지털 방송신호의 비디오데이타 또는 일반방송신호의 비디오데이타를 인가받아 미리 설정된 디스플레이규격으로 포맷 변환하여 OSGM(13)으로 출력한다. 포맷변환기(12)의 출력은 고화질(HD)규격인 1080i(Interace)/33.75㎑(주사선수/라인주파수)의 휘도신호(Y)와 두 색차신호(PR,PB)형식의 디지털 비디오데이타이다. 포맷변환기(12)에서 포맷 변환된 비디오데이타는 OSGM(13)뿐만 아니라 외부기기로의 출력을 위해 D/A변환기(16)로도 입력된다. D/A변환기(16)는 포맷변환기(12)에서 포맷 변환된 고화질(HD)규격의 휘도신호(Y)와 두 색차신호(PR,PB)형식의 디지털 비디오데이타를 아날로그형태로 변환하여 외부출력단자(17)에 연결된 외부기기로 출력한다. 그래서, 디지털 TV 외의 다른 외부기기도 고화질(HD)규격의 비디오신호를 공급받을 수 있도록 한다. 한편, 외부입력단자(18)에 연결된 외부기기로부터 휘도신호(Y)와 두 색차신호(PR,PB)형식의 아날로그 비디오신호가 입력되면, A/D변환기(19)는 외부입력인 아날로그 비디오신호를 OSGM(13)에서 처리가능한 디지털형태로 변환하여 OSGM(13)으로 출력한다. OSGM(13)은 포맷 변환된 비디오데이타 또는 A/D변환기(19)에 의해 디지털 변환된 비디오데이타에 중앙처리부(CPU)(11)로부터 인가되는 화면에 나타낼 부가정보를 삽입하여 적(R), 녹(G), 청(B)의 색신호형태의 아날로그 비디오신호로 CRT구동기(14)에 출력한다. CPU(11)는 미도시하였지만, 디지털 TV내의 각구성블록의 동작을 전반적으로 제어한다. CRT구동기(14)는 OSGM(13)의 출력에 의해 구동되어 CRT(15)에 사용자에 의해 선택된 방송의 영상 또는 외부기기에서 입력된 비디오의 영상을 화면 출력한다.A normal digital TV processes the received digital broadcast signal and the general broadcast signal to be displayed on the CRT 15, and selects one of them according to the current viewing mode and displays them on the CRT 15. At this time, the format converter 12 receives the video data of the digital broadcast signal restored to viewable or the video data of the general broadcast signal, converts the format into a preset display standard, and outputs it to the OSGM 13. The output of the format converter 12 is digital video data in the form of a luminance signal (Y) of 1080i (Interace) /33.75 kHz (scanner / line frequency), which is a high definition (HD) standard, and two color difference signals (P R , P B ). to be. The video data converted in the format converter 12 is input to the D / A converter 16 for output to the external device as well as the OSGM 13. The D / A converter 16 converts the digital video data of the high definition (HD) standard luminance signal Y and the two color difference signals (P R , P B ) format converted by the format converter 12 into an analog form. Output to an external device connected to the external output terminal 17. Therefore, other external devices besides the digital TV can be supplied with a high-definition (HD) video signal. On the other hand, when an analog video signal in the form of a luminance signal Y and two color difference signals P R and P B is input from an external device connected to the external input terminal 18, the A / D converter 19 is an analog input. The video signal is converted into a digital form processable by the OSGM 13 and output to the OSGM 13. The OSGM 13 inserts additional information to be displayed on the screen applied from the CPU 11 to the format-converted video data or the video data digitally converted by the A / D converter 19 to display the red (R), An analog video signal in the form of color signals of green (G) and blue (B) is output to the CRT driver 14. Although not shown, the CPU 11 generally controls the operation of each component block in the digital TV. The CRT driver 14 is driven by the output of the OSGM 13 to output the video of the broadcast selected by the user or the video of the video input from an external device to the CRT 15.

한편, 도 2를 보면, 도 1의 A/D변환기(19) 대신에 외부입력단자(18)와 CRT구동기(14) 사이에 RGB변환기(20)를 구비한다. 그래서, 외부입력단자(18)에 연결된 외부기기로부터 휘도신호(Y)와 두 색차신호(PR,PB)형식의 아날로그 비디오신호가 입력되면, RGB변환기(20)는 외부입력인 아날로그 비디오신호를 CRT구동기(14)에서 처리가능한 적(R), 녹(G), 청(B)의 색신호형태로 변환하여 CRT구동기(14)로 출력한다. CRT구동기(14)는 OSGM(13)의 출력 또는 RGB변환기(20)의 출력에 의해 구동되어 CRT(15)에 사용자에 의해 선택된 방송의 영상 또는 연결된 외부기기로부터 입력된 영상을 화면 출력한다.2, an RGB converter 20 is provided between the external input terminal 18 and the CRT driver 14 instead of the A / D converter 19 of FIG. 1. Thus, when an analog video signal in the form of a luminance signal Y and two color difference signals P R and P B is input from an external device connected to the external input terminal 18, the RGB converter 20 is an analog video signal as an external input. Is converted into a color signal form of red (R), green (G), and blue (B) that can be processed by the CRT driver 14, and is output to the CRT driver 14. The CRT driver 14 is driven by the output of the OSGM 13 or the output of the RGB converter 20 to output the image of the broadcast selected by the user or the image input from the connected external device to the CRT 15.

상술한 바와 같이, 본 발명의 디지털 TV의 비디오신호 입출력장치는, 디지털 TV에서 고화질(HD)규격인 1080i/33.75㎑(주사선수/라인주파수)의 휘도신호(Y)와 두 색차신호(PR,PB)형식의 비디오신호를 외부기기로 출력 및 외부기기로부터 입력받아 화면 출력할 수 있도록 하므로써, 디지털 TV의 외부입출력을 확장시켜 사용범위를 넓힐 수 있는 효과를 갖는다.As described above, the video signal input / output device of the digital TV of the present invention is a luminance signal Y of 1080i / 33.75 kHz (scanner / line frequency), which is a high definition (HD) standard, and two color difference signals (P R ) in a digital TV. , P B) receives the video signal of a format to the external device and output received from the external device to output by screen, has an effect that can widen the range of use to expand the external input and output of the digital TV.

Claims (3)

디지털 TV에 있어서,In digital TV, 외부기기와 연결하여 비디오신호를 입출력하기 위한 외부입출력단자;An external input / output terminal for inputting / outputting a video signal by connecting to an external device; 수신된 방송신호의 시청가능토록 복원된 비디오데이타를 미리 설정된 디스플레이규격으로 포맷 변환하여 휘도신호(Y)와 두 색차신호(PR,PB)형식으로 출력하기 위한 포맷변환기;A format converter for converting the video data reconstructed so that the received broadcast signal can be watched into a preset display standard and outputting the luminance signal Y and two color difference signals P R and P B in a format; 상기 포맷변환기에서 포맷 변환된 휘도신호(Y)와 두 색차신호(PR,PB)형식의 디지털 비디오데이타를 아날로그형태로 변환하여 상기 외부출력단자에 연결된 외부기기로 출력하기 위한 D/A변환기;A D / A converter for converting the digital video data of the luminance signal Y and the two color difference signals (P R , P B ) format converted by the format converter into an analog form and outputting them to an external device connected to the external output terminal. ; 상기 외부입력단자에 연결된 외부기기로부터 입력되는 휘도신호(Y)와 두 색차신호(PR,PB)형식의 아날로그 비디오신호를 디지탈형태로 변환하기 위한 A/D변환기;An A / D converter for converting a luminance signal Y input from an external device connected to the external input terminal and an analog video signal having two color difference signals P R and P B into a digital form; 상기 포맷변환기와 상기 A/D변환기중 하나에서 출력되는 디지털 비디오데이타에 화면에 나타낼 부가정보를 삽입하여 색신호(R,G,B)형식의 아날로그 비디오신호로 출력하는 OSGM; 및An OSGM for inserting additional information to be displayed on a screen into digital video data output from one of the format converter and the A / D converter and outputting the analog video signal in a color signal (R, G, B) format; And 상기 OSGM의 출력에 의해 구동되어 화면출력하는 CRT구동기를 포함하는 디지털 TV의 비디오신호 입출력장치.And a CRT driver driven by the output of the OSGM to output a screen. 제 1항에 있어서, 상기 외부입출력단자에서 입출력되는 비디오신호는 고화질(HD)규격인 1080i/33.75㎑(주사선수/라인주파수)의 휘도신호(Y)와 두 색차신호(PR,PB)형식인 것을 특징으로 하는 디지털 TV의 비디오신호 입출력장치.The video signal input and output from the external input and output terminal is a luminance signal (Y) of 1080i / 33.75kHz (scanner / line frequency) of high-definition (HD) and two color difference signals (P R , P B ) A video signal input and output device of a digital TV, characterized in that the form. 제 1항에 있어서, 상기 A/D변환기 대신에 상기 외부입력단자와 상기 CRT구동기 사이에 연결되어 상기 외부입력단자에 연결된 외부기기로부터 입력되는 휘도신호(Y)와 두 색차신호(PR,PB)형식의 아날로그 비디오신호를 색신호(R,G,B)형식으로 변환하여 바로 CRT구동기로 출력하는 RGB변환기를 구비하는 디지털 TV의 비디오신호 입출력장치.The luminance signal (Y) and two color difference signals (P R , P) connected between the external input terminal and the CRT driver instead of the A / D converter and input from an external device connected to the external input terminal. B ) A video signal input / output device of a digital TV having an RGB converter which converts an analog video signal of a format into a color signal (R, G, B) format and directly outputs it to a CRT driver.
KR1019980011302A 1998-03-31 1998-03-31 Device for inputting and outputting video signal of digital tv KR100310046B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019980011302A KR100310046B1 (en) 1998-03-31 1998-03-31 Device for inputting and outputting video signal of digital tv

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019980011302A KR100310046B1 (en) 1998-03-31 1998-03-31 Device for inputting and outputting video signal of digital tv

Publications (2)

Publication Number Publication Date
KR19990076376A KR19990076376A (en) 1999-10-15
KR100310046B1 true KR100310046B1 (en) 2001-11-15

Family

ID=37530884

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019980011302A KR100310046B1 (en) 1998-03-31 1998-03-31 Device for inputting and outputting video signal of digital tv

Country Status (1)

Country Link
KR (1) KR100310046B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100750106B1 (en) * 2001-08-17 2007-08-21 삼성전자주식회사 Apparatus and method for determining a format of video signal automatically

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4609938A (en) * 1982-07-30 1986-09-02 Tokyo Shibaura Denki Kabushiki Kaisha Digital TV receiver with digital video processing circuit
JPH0614277A (en) * 1992-06-26 1994-01-21 Hitachi Ltd Television receiver
EP0665696A2 (en) * 1994-01-31 1995-08-02 Hitachi Denshi Kabushiki Kaisha Digital video signal processing device and tv camera device arranged to use it
US5530484A (en) * 1995-05-19 1996-06-25 Thomson Multimedia S.A Image scanning format converter suitable for a high definition television system
JPH08331467A (en) * 1995-05-31 1996-12-13 Casio Comput Co Ltd Av monitor device and on-vehicle av monitor device
JPH08331471A (en) * 1995-05-30 1996-12-13 Toshiba Corp Multi-picture television receiver

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4609938A (en) * 1982-07-30 1986-09-02 Tokyo Shibaura Denki Kabushiki Kaisha Digital TV receiver with digital video processing circuit
JPH0614277A (en) * 1992-06-26 1994-01-21 Hitachi Ltd Television receiver
EP0665696A2 (en) * 1994-01-31 1995-08-02 Hitachi Denshi Kabushiki Kaisha Digital video signal processing device and tv camera device arranged to use it
US5530484A (en) * 1995-05-19 1996-06-25 Thomson Multimedia S.A Image scanning format converter suitable for a high definition television system
JPH08331471A (en) * 1995-05-30 1996-12-13 Toshiba Corp Multi-picture television receiver
JPH08331467A (en) * 1995-05-31 1996-12-13 Casio Comput Co Ltd Av monitor device and on-vehicle av monitor device

Also Published As

Publication number Publication date
KR19990076376A (en) 1999-10-15

Similar Documents

Publication Publication Date Title
US7206025B2 (en) Device and method for converting format in digital TV receiver
CN101867831B (en) Strategies for processing image information using a color information data structure
US6462786B1 (en) Method and apparatus for blending image input layers
US7250979B2 (en) Format converting apparatus and method
US8730400B2 (en) Image displaying apparatus and image processing apparatus
KR100247242B1 (en) A digital characteristic control apparatus in tv adopting a flat type display
US7362383B2 (en) System, method and apparatus for utilizing a single video input of an electronic audio/visual signal receiver as an input for multiple video signal formats
US20030067552A1 (en) Digital video data signal processing system and method of processing digital video data signals for display
US7480012B1 (en) Multiplexed video digitization system and method
US6335761B1 (en) Method and apparatus for converting color base of an image layer
US7068324B2 (en) System for displaying graphics in a digital television receiver
KR20020040303A (en) Apparatus for managing PIP of TV
KR100310046B1 (en) Device for inputting and outputting video signal of digital tv
JP5317693B2 (en) High definition and standard definition digital television decoder
KR100468209B1 (en) Electric bulletin board for processing image with variety characteristic and scaling
KR100310047B1 (en) Device for inputting and outputting video signal of digital tv
KR100299984B1 (en) Video signal input and output device of digital tv
KR100303800B1 (en) Video Signal Format Conversion Apparatus and Method according to the receive signal
KR100531780B1 (en) Receiving system and method for selective decoding and multiple display to digital television
US20060244763A1 (en) Device, system and method for realizing on screen display translucency
US20050105005A1 (en) Image transferring device connected to a display
US20070008431A1 (en) Method and circuit for displaying graphics in a digital television receiver
KR100238095B1 (en) Apparatus for preventing the overlapping of an original picture due to information
KR100717469B1 (en) Television receiver using common port
JP2005117306A (en) Video display device

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20090827

Year of fee payment: 9

LAPS Lapse due to unpaid annual fee