KR100296752B1 - Digital tv receiver capable of inputting and outputting digital data at multiple points - Google Patents

Digital tv receiver capable of inputting and outputting digital data at multiple points Download PDF

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Publication number
KR100296752B1
KR100296752B1 KR1019980011651A KR19980011651A KR100296752B1 KR 100296752 B1 KR100296752 B1 KR 100296752B1 KR 1019980011651 A KR1019980011651 A KR 1019980011651A KR 19980011651 A KR19980011651 A KR 19980011651A KR 100296752 B1 KR100296752 B1 KR 100296752B1
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South Korea
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digital
external device
digital data
data
input
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KR1019980011651A
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Korean (ko)
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KR19990079178A (en
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도영수
정태홍
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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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • 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
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4135—Peripherals receiving signals from specially adapted client devices external recorder

Abstract

PURPOSE: A digital TV receiver capable of inputting and outputting digital data at multiple points is provided to directly input digital data of an external device and directly output digital data of the inside of a digital TV receiver. CONSTITUTION: A digital TV receiver capable of inputting and outputting digital data at multiple points includes a first switching part(11), a second switching part(17) and a third switching part(19). The first switching part switches input one of inside digital data of digital broadcast signal capable of being transmitted to a first external device and digital data input from the first external device and outputs to a TS(Transport Stream) decoder. The second switching part switches input one of the output data of the TS decoder and digital data input from a second external device and outputs to a video/audio decoder(18). The third switching part switches input one of the output data of the video/audio decoder and digital data input from a third external device, outputs video signal to a format converting part(14) and outputs audio signal to a speaker.

Description

다수 지점에서 디지탈데이터의 입/출력이 가능한 디지탈ＴＶ수상기Digital TV receiver capable of input / output of digital data at many points

본 발명은 디지탈TV수상기에 관한 것으로, 보다 상세하게는 다수 지점에서 외부기기들과의 상호 디지탈데이터의 전송이 가능한 디지탈TV수상기에 관한 것이다.The present invention relates to a digital TV receiver, and more particularly, to a digital TV receiver capable of transmitting mutual digital data with external devices at a plurality of points.

아날로그방송신호 및 디지탈방송신호의 수신이 가능한 디지탈TV수상기는 외부기기를 통하여 디지탈데이터를 입력받고, 또한 외부기기로 디지탈데이터를 출력하는 것이 가능하다. 도 1이 이와 관련된 디지탈TV수상기의 개략적인 구성을 나타낸다. 도 1에 도시한 바와 같이 제 1스위치부(11)는 안테나를 통하여 수신되는 디지탈방송신호에 대한 내부 디지탈데이터와 외부기기를 통한 외부 디지탈데이터 중 입력되는 데이터를 스위칭하여 TS(Transport Stream)디코더(12)로 출력한다. 이 때, 외부기기를 통한 디지탈데이터는 IEEE-1394와 같은 통신 프로토콜에 의한 데이터전송부(16)에서 TS디코더(12)의 입력데이터형태로 변환된 후 제 1스위치부(11)로 입력된다. TS디코더(12)는 입력받는 데이터에서 비데오신호와 오디오신호를 분리하여 비데오디코더(13)와 오디오디코더(15)로 각각 출력한다. 비데오디코더(13)는 입력받은 비데오신호를 디코딩하여 포맷변환부(14)로 출력하고, 포맷변환부(14)는 입력받는 비데오신호를 미리 설정된 디스플레이타입으로 포맷변환한 후 CRT상으로 출력한다. 한편, 오디오디코더(15)는 입력받은 오디오신호를 디코딩한 후 스피커로 출력한다. 또한, 디지탈방송신호에 대한 내부 디지탈데이터는 데이터전송부(16)를 통하여 외부기기로의 전송가능하다.A digital TV receiver capable of receiving an analog broadcast signal and a digital broadcast signal can receive digital data through an external device and also output digital data to an external device. 1 shows a schematic configuration of a related digital TV receiver. As illustrated in FIG. 1, the first switch unit 11 switches a data input among internal digital data for an external digital signal received through an antenna and external digital data through an external device, thereby transmitting a TS (Transport Stream) decoder ( 12) At this time, the digital data through the external device is converted into the input data form of the TS decoder 12 by the data transmission unit 16 by a communication protocol such as IEEE-1394 and then input to the first switch unit 11. The TS decoder 12 separates the video signal and the audio signal from the received data and outputs the video signal to the video decoder 13 and the audio decoder 15, respectively. The video decoder 13 decodes the received video signal and outputs it to the format conversion unit 14. The format conversion unit 14 converts the received video signal into a preset display type and outputs it on the CRT. On the other hand, the audio decoder 15 decodes the received audio signal and outputs it to the speaker. In addition, the internal digital data for the digital broadcast signal can be transmitted to the external device through the data transmitter 16.

그러나, 상술한 데이터전송부(16)의 데이터전송은 통신 프로토콜에 의한 것이므로 디지탈TV수상기와 외부기기는 하드웨어적으로나 소프트웨어적으로 복잡한 구성을 이루고 있다. 또한, 디지탈TV수상기와 외부기기 사이에서 상호 전송되는 데이터는 데이터전송부(16)를 통해 TS디코더(12)나 외부기기가 요구하는 데이터형태로 변환된 후 전송되어야만 한다.However, since the data transmission of the data transmission unit 16 described above is by a communication protocol, the digital TV receiver and the external device have a complicated configuration in hardware and software. In addition, the data transmitted between the digital TV receiver and the external device must be transmitted after being converted into the data format required by the TS decoder 12 or the external device through the data transmitter 16.

따라서, 본 발명에서는 외부기기의 디지탈데이터를 곧바로 입력받고, 또한 디지탈TV수상기의 내부 디지탈데이터를 곧바로 출력할 수 있도록 하는 다수 지점에서 디지탈데이터의 입/출력이 가능한 디지탈TV수상기를 제공하고자 한다.Accordingly, the present invention is to provide a digital TV receiver capable of inputting / outputting digital data at a plurality of points to directly receive the digital data of an external device and also to directly output the internal digital data of the digital TV receiver.

도 1은 일반적인 디지탈TV수상기의 개략적인 구성을 나타낸 블록도,1 is a block diagram showing a schematic configuration of a general digital TV receiver;

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

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

11,17,19 : 스위치부 20,21,22 : 버퍼11, 17, 19: switch unit 20, 21, 22: buffer

이와 같은 목적을 달성하기 위한 본 발명의 특징은 외부기기들과 디지탈데이터의 상호 전송이 가능한 디지탈TV수상기에 있어서, 제 1외부기기로 전송이 가능한 디지탈방송신호에 대한 내부데이터와 상기 제 1외부기기로부터 입력되는 디지탈데이터 중 어느 하나의 디지탈데이터를 스위칭하여 TS디코더로 출력하는 제 1스위치부; 제 2외부기기로 전송이 가능한 상기 TS디코더의 출력데이터와 상기 제 2외부기기로부터 입력되는 디지탈데이터 중 어느 하나의 디지탈데이터를 스위칭하여 비데오/오디오디코더로 출력하는 제 2스위치부; 및 제 3외부기기로 전송이 가능한 상기 비데오/오디오디코더의 출력데이터와 상기 제 3외부기기로부터 입력되는 디지탈데이터 중 어느 하나의 디지탈데이터를 스위칭한 후, 비데오신호는 포맷변환부로 출력하고, 오디오신호는 스피커로 출력하는 제 3스위치부를 구비하여 다수 지점에서 디지탈데이터의 입/출력이 가능한 디지탈TV수상기에 있다.A feature of the present invention for achieving the above object is in a digital TV receiver capable of mutual transmission of external devices and digital data, the internal data for the digital broadcast signal that can be transmitted to the first external device and the first external device A first switch unit which switches one of the digital data input from the digital data and outputs the digital data to the TS decoder; A second switch unit configured to switch one of the output data of the TS decoder capable of transmission to a second external device and the digital data input from the second external device to output to a video / audio decoder; And after switching either the output data of the video / audio decoder capable of transmission to a third external device and the digital data input from the third external device, the video signal is output to a format conversion unit and the audio signal is output. Is a digital TV receiver having a third switch unit for outputting to a speaker and capable of input / output of digital data at multiple points.

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

도 2는 본 발명에 따른 디지탈TV수상기의 개략적인 구성을 나타낸 블록도이다. 도 2의 디지탈TV수상기는 도 1의 디지탈TV수상기에서 동일 기능을 지닌 구성부분을 포함하고, 포함된 구성부분에는 동일 부호를 부가하였다. 그리고, 도 2의 디지탈TV수상기는 디지탈방송신호를 수신하는 경우의 내부 데이터와 외부기기를 통한 데이터 중 입력되는 데이터를 스위칭하기위한 스위치부(11, 17, 19)를 TS디코더(12)의 입력단, 비데오/오디오디코더(18)의 입력단 그리고 포맷변환부(14) 및 스피커의 입력단에 순서대로 연결한 구성을 갖는다. 또한, 각 스위치부(11, 17, 19)의 입력단에는 외부기기와의 데이터입/출력을 원활히 하기위한 전압, 전류, 임피던스 등의 신호를 구동하는 버퍼(20, 21, 22)가 연결되어 있다.2 is a block diagram showing a schematic configuration of a digital TV receiver according to the present invention. The digital TV receiver of FIG. 2 includes components having the same function in the digital TV receiver of FIG. 1, and the same reference numerals are added to the included components. In addition, the digital TV receiver of FIG. 2 includes switch units 11, 17, and 19 for switching input data among internal data and external data when receiving a digital broadcasting signal. , An input terminal of the video / audio decoder 18 and a format conversion unit 14 and an input terminal of a speaker are sequentially connected. In addition, buffers 20, 21, and 22 for driving signals such as voltage, current, and impedance for smooth data input / output with external devices are connected to the input terminals of the switch units 11, 17, and 19. .

이와 같이 구성된 디지탈TV수상기의 동작에 대해 알아보도록 한다.The operation of the digital TV receiver configured as described above will be described.

디지탈TV수상기와 외부기기들 사이에서, TS디코더(12)의 입력데이터형태로 상호 데이터를 전송하고자하는 경우, 제 1외부기기는 제 1버퍼(20)에 연결되고, 비데오/오디오디코더(18)의 입력데이터형태로 상호 데이터를 전송하고자하는 경우 제 2외부기기는 제 2버퍼(21)에 연결된다. 또한, 비데오/오디오디코더(18)의 출력데이터형태로 상호 데이터를 전송하고자하는 경우 제 3외부기기는 제 3버퍼(22)에 연결된다.When the digital TV receiver and the external devices wish to transmit data in the form of input data of the TS decoder 12, the first external device is connected to the first buffer 20, and the video / audio decoder 18 The second external device is connected to the second buffer 21 when the mutual data is to be transmitted in the form of input data. The third external device is also connected to the third buffer 22 when the mutual data is to be transmitted in the form of the output data of the video / audio decoder 18.

먼저, 제 1버퍼(20)에 제 1외부기기가 연결된 경우에 대해 설명하도록 한다. 제 1스위치부(11)는 안테나를 통하여 수신되는 디지탈방송신호에 대한 내부 디지탈데이터와 제 1버퍼(20)를 통한 제 1외부기기의 디지탈데이터 중 입력되는 데이터를 스위칭하여 TS디코더(12)로 출력한다. TS디코더(12)는 입력받는 데이터에서 비데오신호와 오디오신호를 분리하여 제 2스위치부(17)로 출력하고, 제 2스위치부(17)는 입력받은 비데오/오디오신호를 비데오/오디오디코더(18)로 출력한다. 비데오/오디오디코더(18)는 비데오/오디오신호를 각각 디코딩하여 제 3스위치부(19)로 출력한다. 제 3스위치부(19)는 입력받은 비데오신호를 포맷변환부(14)로 출력하고, 입력받은 오디오신호를 스피커로 출력한다. 포맷변환부(14)는 입력받는 비데오신호를 미리 설정된 디스플레이타입으로 포맷변환한 후 CRT상으로 출력한다. 그리고, 디지탈방송신호에 대한 내부데이터는 제 1버퍼(20)를 통해 제 1외부기기로 출력되는 것도 가능하다.First, a case in which a first external device is connected to the first buffer 20 will be described. The first switch unit 11 switches the input data among the internal digital data for the digital broadcast signal received through the antenna and the digital data of the first external device through the first buffer 20 to the TS decoder 12. Output The TS decoder 12 separates the video signal and the audio signal from the received data and outputs the video signal to the second switch unit 17. The second switch unit 17 outputs the input video / audio signal to the video / audio decoder 18. ) The video / audio decoder 18 decodes the video / audio signal, respectively, and outputs the decoded video / audio signal to the third switch unit 19. The third switch unit 19 outputs the input video signal to the format conversion unit 14 and outputs the input audio signal to the speaker. The format conversion unit 14 converts the input video signal into a preset display type and outputs the converted video signal on the CRT. In addition, the internal data for the digital broadcast signal may be output to the first external device through the first buffer 20.

다음으로, 제 2버퍼(21)에 제 2외부기기가 연결된 경우, 제 2스위치부(17)는 내부 디지탈데이터와 제 2버퍼(21)를 통한 제 2외부기기의 디지탈데이터 중 입력되는 데이터를 스위칭하여 비데오/오디오디코더(18)로 출력한다. 그리고, 비데오/오디오디코더(18), 제 3스위치부(19) 그리고 포맷변환부(14)의 동작은 제 1버퍼(20)에 제 1외부기기가 연결된 경우에서 상술한 동작과 동일하므로 생략한다. 또한, 디지탈방송신호에 대한 내부데이터는 제 2버퍼(21)를 통해 제 2외부기기로 출력되는 것도 가능하다.Next, when the second external device is connected to the second buffer 21, the second switch unit 17 may input data input from the internal digital data and the digital data of the second external device through the second buffer 21. It switches and outputs to the video / audio decoder 18. In addition, operations of the video / audio decoder 18, the third switch unit 19, and the format conversion unit 14 are the same as those described above in the case where the first external device is connected to the first buffer 20. . In addition, the internal data for the digital broadcast signal may be output to the second external device through the second buffer 21.

끝으로, 제 3버퍼(22)에 제 3외부기기가 연결된 경우, 제 3스위치부(19)는 내부 디지탈데이터와 제 3버퍼(22)를 통한 제 3외부기기의 디지탈데이터 중 입력되는 데이터를 스위칭하여, 포맷변환부(14)로 비데오신호를 출력하고, 스피커로 오디오신호를 출력한다. 포맷변환부(14)는 입력받은 비데오신호를 미리 설정된 디스플레이타입으로 포맷변환하여 CRT상으로 출력한다. 그리고, 디지탈방송신호에 대한 내부데이터는 제 3버퍼(22)를 통해 제 3외부기기로 출력되는 것이 가능하다.Finally, when the third external device is connected to the third buffer 22, the third switch unit 19 is configured to input data among the internal digital data and the digital data of the third external device through the third buffer 22. By switching, the video signal is output to the format converter 14, and the audio signal is output to the speaker. The format conversion unit 14 converts the input video signal into a preset display type and outputs the converted video signal on the CRT. And, the internal data for the digital broadcast signal can be output to the third external device through the third buffer 22.

상술한 바와 같이, 디지탈TV수상기와 외부기기들 사이에서 상호 전송하고자하는 디지탈데이터의 형태에 따라 디지탈TV수상기의 다수 임의의 지점에서 상호 데이터의 전송이 가능하므로 디지탈TV수상기 및 외부기기들은 신속하게 디지탈데이터를 전송할 수 있고, 하드웨어적으로나 소프트웨어적으로 간단해지는 잇점이 있다.As described above, since the digital TV receiver and the external devices can transmit data at a plurality of arbitrary points of the digital TV receiver according to the type of digital data to be transmitted to each other, the digital TV receiver and the external devices are quickly There is an advantage in that data can be transferred and simplified in hardware and software.

Claims (3)

외부기기들과 디지탈데이터의 상호 전송이 가능한 디지탈TV수상기에 있어서,In the digital TV receiver capable of mutual transmission of external devices and digital data, 제 1외부기기로 전송이 가능한 디지탈방송신호에 대한 내부 디지탈데이터와 상기 제 1외부기기로부터 입력되는 디지탈데이터 중 입력되는 디지탈데이터를 스위칭하여 TS(Transport Stream)디코더로 출력하는 제 1스위치부;A first switch unit configured to switch internal digital data for a digital broadcast signal that can be transmitted to a first external device and digital data input among the digital data input from the first external device to output to a TS (Transport Stream) decoder; 제 2외부기기로 전송이 가능한 상기 TS디코더의 출력데이터와 상기 제 2외부기기로부터 입력되는 디지탈데이터 중 입력되는 디지탈데이터를 스위칭하여 비데오/오디오디코더로 출력하는 제 2스위치부; 및A second switch unit configured to switch the digital data input among the output data of the TS decoder capable of transmission to a second external device and the digital data input from the second external device to output to a video / audio decoder; And 제 3외부기기로 전송이 가능한 상기 비데오/오디오디코더의 출력데이터와 상기 제 3외부기기로부터 입력되는 디지탈데이터 중 입력되는 디지탈데이터를 스위칭한 후, 비데오신호는 포맷변환부로 출력하고, 오디오신호는 스피커로 출력하는 제 3스위치부를 구비하여 다수 지점에서 디지탈데이터의 입/출력이 가능한 디지탈TV수상기.After switching the input data of the video / audio decoder which is transmitted to the third external device and the digital data input from the third external device, the video signal is output to the format converter and the audio signal is output to the speaker. A digital TV receiver capable of input / output of digital data at a plurality of points by including a third switch unit for outputting the data. 제 1항에 있어서, 상기 각 스위치부와 대응하는 외부기기 사이에는 디지탈데이터의 입/출력을 원활히 하기위한 신호를 구동하는 버퍼를 더 구비하는 것을 특징으로 하는 디지탈TV수상기.The digital TV receiver as claimed in claim 1, further comprising a buffer for driving a signal for smoothly input / output of digital data between each switch unit and a corresponding external device. 제 2항에 있어서, 상기 신호는 전압, 전류, 임피던스인 것을 특징으로 하는 디지탈 TV수상기.The digital TV receiver as claimed in claim 2, wherein the signal is a voltage, a current, or an impedance.
KR1019980011651A 1998-04-02 1998-04-02 Digital tv receiver capable of inputting and outputting digital data at multiple points KR100296752B1 (en)

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US4456928A (en) * 1980-08-08 1984-06-26 Thomson-Brandt Integrated interface circuit between a television receiver and its peritelevision connector
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