KR20200113526A - Apparatus for modulating satellite signal of multi channel - Google Patents

Apparatus for modulating satellite signal of multi channel Download PDF

Info

Publication number
KR20200113526A
KR20200113526A KR1020190033846A KR20190033846A KR20200113526A KR 20200113526 A KR20200113526 A KR 20200113526A KR 1020190033846 A KR1020190033846 A KR 1020190033846A KR 20190033846 A KR20190033846 A KR 20190033846A KR 20200113526 A KR20200113526 A KR 20200113526A
Authority
KR
South Korea
Prior art keywords
signal
dvb
modulator
channel
satellite signal
Prior art date
Application number
KR1020190033846A
Other languages
Korean (ko)
Inventor
김광호
Original Assignee
(주)코위
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 (주)코위 filed Critical (주)코위
Priority to KR1020190033846A priority Critical patent/KR20200113526A/en
Publication of KR20200113526A publication Critical patent/KR20200113526A/en

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04HBROADCAST COMMUNICATION
    • H04H40/00Arrangements specially adapted for receiving broadcast information
    • H04H40/18Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/90Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for satellite broadcast receiving
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04HBROADCAST COMMUNICATION
    • H04H20/00Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28Arrangements for simultaneous broadcast of plural pieces of information
    • H04H20/33Arrangements for simultaneous broadcast of plural pieces of information by plural channels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04HBROADCAST COMMUNICATION
    • H04H20/00Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65Arrangements characterised by transmission systems for broadcast
    • H04H20/71Wireless systems
    • H04H20/74Wireless systems of satellite networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/438Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4382Demodulation or channel decoding, e.g. QPSK demodulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61Network physical structure; Signal processing
    • H04N21/6106Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6143Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61Network physical structure; Signal processing
    • H04N21/6156Network physical structure; Signal processing specially adapted to the upstream path of the transmission network
    • H04N21/6193Network physical structure; Signal processing specially adapted to the upstream path of the transmission network involving transmission via a satellite

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The present invention relates to a multi-channel satellite signal modulation apparatus comprising: a satellite broadcasting receiver for receiving a multi-channel satellite signal; a digital video broadcasting-terrestrial (DVB-T) modulator for converting the received multi-channel satellite signal into a DVB-T signal in the form of a broadcast transport stream or a cable signal; and a remultiplexer which transmits a DVB-T signal or a cable signal that matches an input selection signal. According to the present invention, it is possible to save a space and power on an upper surface of the modulator by converting a multi-channel satellite signal into a DVB-T signal or a cable signal through the DVB-T modulator configured in a single modulator and transmitting the signal in Korea, and there is an effect of facilitating channel editing of a broadcast program by enabling selection of broadcast programs to be transmitted through the remultiplexer configured in a single modulation device.

Description

다채널 위성신호 변조 장치{Apparatus for modulating satellite signal of multi channel}Apparatus for modulating satellite signal of multi channel

본 발명은 다채널 위성신호 변조 장치에 관한 것으로 더욱 상세하게는, 집합 건물의 방송 장비 중 위성 신호(DVB-S/S2)를 수신하여 구내로 송출하는 장비의 상면공간 및 전력 소모를 줄이기 위하여 여러 개의 중복된 장비의 불 필요한 부분을 제거하고 방송 프로그램의 채널편집을 용이하게 하는 기술이다.The present invention relates to a multi-channel satellite signal modulator, and more particularly, to reduce the overhead space and power consumption of equipment that receives satellite signals (DVB-S/S2) among broadcasting equipment of an aggregate building and transmits them to the premises. It is a technology that removes unnecessary parts of duplicate equipment and facilitates channel editing of broadcast programs.

디지털 방송의 특징은 다채널화, 고품질화 및 다기능화로 요약된다. 특히, 다중화 기술의 발전으로 영상, 음성, 데이터 등을 내용 및 크기에 무관하게 동시에 묶어 전송할 수 있고, 모뎀을 통한 리턴 채널이 형성되어 대화형 서비스가 가능하다. 이에 따라 디지털 데이터 방송은 기존 아날로그 방송의 한계를 극복하고, 부가가치가 높은 멀티미디어 서비스를 시청자에게 제공할 수 있게 된다.The characteristics of digital broadcasting are summarized as multi-channel, high-quality and multifunctional. In particular, with the development of multiplexing technology, video, audio, and data can be simultaneously bundled and transmitted irrespective of the content and size, and a return channel through a modem is formed, enabling interactive services. Accordingly, digital data broadcasting can overcome the limitations of conventional analog broadcasting and provide multimedia services with high added value to viewers.

특히, 디지털 TV 방송 표준 중 하나인 지상파 디지털 비디오 방송(Digital Video Broadcasting - Terrestrial: DVB-T) 및 DVB-T에 기반을 둔 디지털 이동 방송(Digital Video Broadcasting - Handheld: DVB-H)은 비디오 이미지들 및 사운드를 나타내는 데이터를 방송 무선 통신신호를 통해 수신기들에 통신하는 유럽형 디지털 TV 방송이다.In particular, Digital Video Broadcasting (DVB-T), one of the digital TV broadcasting standards, and Digital Video Broadcasting (DVB-H) based on DVB-T, are video images. And data representing sound to receivers through broadcast wireless communication signals.

이러한 유럽형 디지털 TV 방송을 집합건물의 방송설비로 송출하는 경우, 유럽형 지상파 변조기(DVB-T Modulator)을 통해 방송용 전송 스트림(Transport Stream)을 입력받아 유럽형 표준으로 변조하여 송출하고, Remultiplxer를 통해 다수의 방송용 전송 스트림의 프로그램을 재배열하여 출력하게 된다.In the case of transmitting such a European digital TV broadcast to a broadcasting facility in a collective building, a transport stream for broadcasting is received through a European terrestrial modulator (DVB-T Modulator), modulated to the European standard, and transmitted. The program of the broadcast transport stream is rearranged and output.

그러나, 전술한 바와 같이 집합건물 내로 다채널 DVB-T 방송을 송출하기 위해서는 채널 개수와 대응하는 DVB-T 모듈레이터 및 리멀티플랙서를 구성하게 되며, 이에 따라 장비의 상면 공간 부피가 커지고, 전력소모가 큰 문제점이 있다.However, as described above, in order to transmit a multi-channel DVB-T broadcast into an aggregate building, a DVB-T modulator and a remultiplexer corresponding to the number of channels are configured. Accordingly, the volume of the upper surface of the equipment increases, and power consumption is reduced. There is a big problem.

이에 본 출원인은 단일 변조장치 내에 DVB-T 모듈레이터 및 리멀티플랙서를 구성하여 다채널 DVB-T 방송을 집합건물 내로 송출함으로써, 상면 공간 및 전력을 절약하는 장치를 제안하고자 한다.Accordingly, the present applicant intends to propose a device that saves space and power on a floor by configuring a DVB-T modulator and a remultiplexer in a single modulation device to transmit multi-channel DVB-T broadcasting into an aggregate building.

대한민국 등록특허 제10-671336호(2007.01.19.공고)Korean Patent Registration No. 10-671336 (announcement on January 19, 2007)

본 발명의 목적은, 단일 변조장치 내에 구성한 DVB-T 모듈레이터를 통해 다채널 위성신호를 단일 변조장치 내에 구비된 모듈레이터를 통해 DVB-T 또는 케이블 신호로 변환하여 국내에서 송출함으로써, 변조장치의 상면 공간 및 전력을 절약하는데 있다.An object of the present invention is to convert a multi-channel satellite signal into a DVB-T or cable signal through a DVB-T modulator configured in a single modulator and transmit it in Korea through a modulator provided in a single modulator. And to save power.

본 발명의 목적은, 단일 변조장치 내에 구성한 리멀티플랙서를 통해 송출할 방송 프로그램에 대한 취사선택이 가능하게 함으로써, 방송 프로그램의 채널편집을 용이하게 하는데 있다.An object of the present invention is to facilitate channel editing of a broadcast program by enabling selection and selection of a broadcast program to be transmitted through a remultiplexer configured in a single modulation device.

이러한 기술적 과제를 달성하기 위한 본 발명의 일 실시예는 다채널 위성신호 변조 장치로서, 다채널 위성신호를 수신하는 위성방송 수신기; 수신한 다채널 위성신호를 방송용 전송 스트림 형태의 DVB-T 신호 또는 케이블 신호로 변환하는 DVB-T 모듈레이터; 및 입력받은 선택신호와 부합하는 DVB-T 신호 또는 케이블 신호를 송출하는 리멀티플랙서를 포함한다.An embodiment of the present invention for achieving this technical problem is a multi-channel satellite signal modulating apparatus, comprising: a satellite broadcasting receiver for receiving a multi-channel satellite signal; A DVB-T modulator for converting the received multi-channel satellite signal into a DVB-T signal or a cable signal in the form of a broadcast transport stream; And a remultiplexer for transmitting a DVB-T signal or a cable signal matching the input selection signal.

바람직하게는, 방송용 전송 스트림은 그 헤더에 전체 스트림을 구성하는 프로그램 정보, 프로그램의 시간 정보 및 전체 시스템을 제어하기 위한 제어 정보를 포함한다.Preferably, the broadcast transport stream includes program information constituting the entire stream, time information of the program, and control information for controlling the entire system in its header.

선택신호는, 전송 스트림에 포함된 다 채널 중에 어느 하나에 대한 프로그램 정보를 선택하는 신호인 것을 특징으로 한다.The selection signal is characterized in that it is a signal for selecting program information for any one of multiple channels included in the transport stream.

리멀티플랙서는, 중복된 영상 및 음성을 부호화 및 복호화하는 것을 특징으로 한다.The remultiplexer is characterized by encoding and decoding duplicated video and audio.

상기와 같은 본 발명에 따르면, 단일 변조장치 내에 구성한 DVB-T 모듈레이터를 통해 다채널 위성신호를 단일 변조장치 내에 구비된 모듈레이터를 통해 DVB-T 또는 케이블 신호로 변환하여 국내에서 송출함으로써, 변조장치의 상면 공간 및 전력을 절약할 수 있다.According to the present invention as described above, by converting a multi-channel satellite signal into a DVB-T or cable signal through a modulator provided in a single modulation device through a DVB-T modulator configured in a single modulation device and transmitting it in Korea, It can save floor space and power.

본 발명에 따르면, 단일 변조장치 내에 구성한 리멀티플랙서를 통해 송출할 방송 프로그램에 대한 취사선택이 가능하게 함으로써, 방송 프로그램의 채널편집을 용이하게 하는 효과가 있다.According to the present invention, it is possible to select and select a broadcast program to be transmitted through a remultiplexer configured in a single modulation device, thereby facilitating channel editing of a broadcast program.

도 1은 본 발명의 일 실시예에 따른 다채널 위성신호 변조 장치를 도시한 구성도.
도 2는 종래의 다채널 위성신호 변조 장치를 도시한 블록도.
도 3은 본 발명의 일 실시예에 따른 다채널 위성신호 변조 장치의 DVB-T 모듈레이터를 도시한 블록도.
도 4는 종래의 위성신호 변조 장치와 본 발명의 일 실시예에 따른 다채널 위성신호 변조 장치를 비교한 예시도.
1 is a block diagram showing a multi-channel satellite signal modulating apparatus according to an embodiment of the present invention.
2 is a block diagram showing a conventional multi-channel satellite signal modulating apparatus.
3 is a block diagram showing a DVB-T modulator of a multi-channel satellite signal modulator according to an embodiment of the present invention.
4 is an exemplary view comparing a conventional satellite signal modulator and a multi-channel satellite signal modulator according to an embodiment of the present invention.

본 발명의 구체적인 특징 및 이점들은 첨부 도면에 의거한 다음의 상세한 설명으로 더욱 명백해질 것이다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 발명자가 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야 할 것이다. 또한, 본 발명에 관련된 공지 기능 및 그 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는, 그 구체적인 설명을 생략하였음에 유의해야 할 것이다.Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms or words used in the present specification and claims are based on the principle that the inventor can appropriately define the concept of terms in order to describe his or her invention in the best way. It should be interpreted as a corresponding meaning and concept. In addition, when it is determined that a detailed description of known functions and configurations related to the present invention may unnecessarily obscure the subject matter of the present invention, it should be noted that the detailed description has been omitted.

도 1을 참조하면 본 발명의 일 실시예에 따른 다채널 위성신호 변조 장치(100)는, 다채널 위성신호를 수신하는 위성방송 수신기(102)와, 수신한 다채널 위성신호를 방송용 전송 스트림(Transport Stream) 형태의 DVB-T 신호 또는 케이블 신호로 변환하는 DVB-T 모듈레이터(104), 및 중복된 영상 및 음성을 부호화 및 복호화하고, 입력받은 선택신호와 부합하는 DVB-T 신호 또는 케이블 신호를 송출하는 리멀티플랙서(106)를 포함하여 구성된다.Referring to FIG. 1, a multi-channel satellite signal modulator 100 according to an embodiment of the present invention includes a satellite broadcasting receiver 102 for receiving a multi-channel satellite signal, and a transmission stream for broadcasting the received multi-channel satellite signal. Transport Stream) DVB-T modulator 104 that converts into a DVB-T signal or cable signal, and encodes and decodes duplicated video and audio, and converts a DVB-T signal or cable signal corresponding to the input selection signal. It is configured to include a remultiplexer 106 to be transmitted.

이때, 방송용 전송 스트림의 헤더는 전체 스트림을 구성하는 프로그램 정보, 프로그램의 시간 정보 및 전체 시스템을 제어하기 위한 제어 정보를 포함하고, 선택신호는 전송 스트림에 포함된 다 채널 중에 어느 하나에 대한 프로그램 정보를 선택하는 신호이다.At this time, the header of the broadcast transport stream includes program information constituting the entire stream, time information of the program, and control information for controlling the entire system, and the selection signal is program information for any one of multiple channels included in the transport stream. It is a signal to choose.

구체적으로, 도 2를 참조하면 종래의 변조장치는, 위성신호 채널의 개수와 대응하도록 튜너(Tuner), 디모듈레이터(Demodulator), 셀랙터(Selector), 디스크램블러(Descrambler), 엔코더(Encoder), 스캠블러(Scrambler) 및 모듈레이터(Modulator)를 구성하여 위성신호를 DVB-T 신호 또는 케이블 신호로 송출하도록 구성되었다.Specifically, referring to FIG. 2, a conventional modulation device includes a tuner, a demodulator, a selector, a descrambler, an encoder, and a scam so as to correspond to the number of satellite signal channels. It is configured to transmit a satellite signal as a DVB-T signal or a cable signal by configuring a scrambler and a modulator.

그러나, 본 발명의 일 실시예에 따른 다채널 위성신호 변조 장치(100)는, 도 3에 도시된 바와 같이 DVB-T 모듈레이터(104)는 튜너(Tuner), 디모듈레이터(Demodulator), 리멀티플랙서(Remultiplxer), 디스크램블러(Descrambler), 스캠블러(Scrambler) 및 모듈레이터(Modulator)를 포함하여 구성된다.However, in the multi-channel satellite signal modulation apparatus 100 according to an embodiment of the present invention, as shown in FIG. 3, the DVB-T modulator 104 includes a tuner, a demodulator, and a remultiplexer. (Remultiplxer), a descrambler (Descrambler), a scrambler (Scrambler) and a modulator (Modulator).

즉, 본 발명의 일 실시예에 따르면 4에 도시된 바와 같이, 각 채널별로 리모듈레이터 및 엔코듈레이터를 구성하던 것을 단일 변조장치로 대체할 수 있다.That is, according to an embodiment of the present invention, as shown in Fig. 4, the remodulator and encoder configured for each channel can be replaced with a single modulator.

따라서, 전술한 바와 같은 본 발명에 따르면, 단일 변조장치 내에 구성한 DVB-T 모듈레이터(104)를 통해 다채널 위성신호를 단일 변조장치 내에 구비된 모듈레이터를 통해 DVB-T 또는 케이블 신호로 변환하여 국내에서 송출함으로써, 변조장치의 상면 공간 및 전력을 절약할 수 있고, 단일 변조장치 내에 구성한 리멀티플랙서(106)를 통해 송출할 방송 프로그램에 대한 취사선택이 가능하게 함으로써, 방송 프로그램의 채널편집을 용이하게 하는 효과가 있다.Therefore, according to the present invention as described above, multi-channel satellite signals are converted into DVB-T or cable signals through a modulator provided in a single modulation device through the DVB-T modulator 104 configured in a single modulation device. By transmitting, it is possible to save space and power on the upper surface of the modulation device, and by allowing selection and selection of a broadcast program to be transmitted through the remultiplexer 106 configured in a single modulation device, channel editing of a broadcast program is easy. There is an effect to make.

전술한 장치를 기반으로 하는 본 발명의 일 실시예에 따른 다채널 위성신호 변조 방법에 대해 살피면 아래와 같다.A multi-channel satellite signal modulation method according to an embodiment of the present invention based on the above-described apparatus is as follows.

먼저, 위성방송 수신기가 다채널 위성신호를 수신한다.First, a satellite broadcasting receiver receives a multi-channel satellite signal.

이어서, DVB-T 모듈레이터가 수신한 다채널 위성신호를 방송용 전송 스트림(Transport Stream) 형태의 DVB-T 신호 또는 케이블 신호로 변환한다.Subsequently, the multi-channel satellite signal received by the DVB-T modulator is converted into a DVB-T signal or a cable signal in the form of a transport stream for broadcasting.

뒤이어, 리멀티플랙서가 중복된 영상 및 음성을 부호화 및 복호화한다.Subsequently, the remultiplexer encodes and decodes the duplicated video and audio.

그리고, 리멀티플랙서가 입력받은 선택신호와 부합하는 DVB-T 신호 또는 케이블 신호를 송출한다.Then, the remultiplexer transmits a DVB-T signal or a cable signal corresponding to the input selection signal.

이상으로 본 발명의 기술적 사상을 예시하기 위한 바람직한 실시예와 관련하여 설명하고 도시하였지만, 본 발명은 이와 같이 도시되고 설명된 그대로의 구성 및 작용에만 국한되는 것이 아니며, 기술적 사상의 범주를 일탈함이 없이 본 발명에 대해 다수의 변경 및 수정이 가능함을 당업자들은 잘 이해할 수 있을 것이다. 따라서 그러한 모든 적절한 변경 및 수정과 균등 물들도 본 발명의 범위에 속하는 것으로 간주되어야 할 것이다.As described above and shown in connection with a preferred embodiment for illustrating the technical idea of the present invention, the present invention is not limited to the configuration and operation as shown and described as described above, and deviates from the scope of the technical idea. It will be well understood by those skilled in the art that a number of changes and modifications can be made to the present invention without. Therefore, all such appropriate changes and modifications and equivalents should be considered to be within the scope of the present invention.

100: 다채널 위성신호 변조 장치
102: 위성방송 수신기
104: DVB-T 모듈레이터
106: 리멀티플랙서
100: multi-channel satellite signal modulator
102: satellite broadcasting receiver
104: DVB-T modulator
106: remultiplexer

Claims (4)

다채널 위성신호를 수신하는 위성방송 수신기;
수신한 다채널 위성신호를 방송용 전송 스트림 형태의 DVB-T 신호 또는 케이블 신호로 변환하는 DVB-T 모듈레이터; 및
입력받은 선택신호와 부합하는 DVB-T 신호 또는 케이블 신호를 송출하는 리멀티플랙서를
포함하는 것을 특징으로 하는 다채널 위성신호 변조 장치.
A satellite broadcasting receiver for receiving multi-channel satellite signals;
A DVB-T modulator for converting the received multi-channel satellite signal into a DVB-T signal or a cable signal in the form of a broadcast transport stream; And
Remultiplexer that transmits DVB-T signal or cable signal matching the input selection signal
Multi-channel satellite signal modulation device comprising a.
제1항에 있어서,
상기 방송용 전송 스트림은,
그 헤더에 전체 스트림을 구성하는 프로그램 정보, 프로그램의 시간 정보 및 전체 시스템을 제어하기 위한 제어 정보를 포함하는 것을 특징으로 하는 다채널 위성신호 변조 장치.
The method of claim 1,
The broadcast transport stream,
A multi-channel satellite signal modulator, characterized in that the header includes program information constituting the entire stream, time information of the program, and control information for controlling the entire system.
제1항에 있어서,
상기 선택신호는,
상기 전송 스트림에 포함된 다 채널 중에 어느 하나에 대한 프로그램 정보를 선택하는 신호인 것을 특징으로 하는 다채널 위성신호 변조 장치.
The method of claim 1,
The selection signal,
And a signal for selecting program information for any one of multiple channels included in the transport stream.
제1항에 있어서,
상기 리멀티플랙서는,
중복된 영상 및 음성을 부호화 및 복호화하는 것을 특징으로 하는 다채널 위성신호 변조 장치.
The method of claim 1,
The remultiplexer,
A multi-channel satellite signal modulation apparatus, characterized in that encoding and decoding duplicated video and audio.
KR1020190033846A 2019-03-25 2019-03-25 Apparatus for modulating satellite signal of multi channel KR20200113526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020190033846A KR20200113526A (en) 2019-03-25 2019-03-25 Apparatus for modulating satellite signal of multi channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020190033846A KR20200113526A (en) 2019-03-25 2019-03-25 Apparatus for modulating satellite signal of multi channel

Publications (1)

Publication Number Publication Date
KR20200113526A true KR20200113526A (en) 2020-10-07

Family

ID=72884341

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020190033846A KR20200113526A (en) 2019-03-25 2019-03-25 Apparatus for modulating satellite signal of multi channel

Country Status (1)

Country Link
KR (1) KR20200113526A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100671336B1 (en) 2005-10-21 2007-01-19 주식회사 케이티프리텔 Digital broadcasting transmitting system capable of conditionally accessing broadcasting signals for each transmitter in single or multiple frequency network and method thereof, and digital broadcasting receiving system and method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100671336B1 (en) 2005-10-21 2007-01-19 주식회사 케이티프리텔 Digital broadcasting transmitting system capable of conditionally accessing broadcasting signals for each transmitter in single or multiple frequency network and method thereof, and digital broadcasting receiving system and method thereof

Similar Documents

Publication Publication Date Title
CN1208958C (en) TV set top-box system and method for watching digital broadcasting
US5651010A (en) Simultaneous overlapping broadcasting of digital programs
KR20050087837A (en) Method and system for delivering dual layer hdtv signals through broadcasting and streaming
CN101803360A (en) Transport stream module for digital television receiver
US5563892A (en) Method of upgrading the program transport capacity of an RF broadcast channel
US8875192B2 (en) Method and apparatus for multiple audio outputs
CN102547377A (en) Method and device for transmitting video data to Set-top box
US20080055488A1 (en) Video channel changing
KR0184043B1 (en) Multi-interface system for a vod
US20030189666A1 (en) Multi-channel digital video broadcast to composite analog video converter
KR100673482B1 (en) Apparatus and method for controlling quality of image and sound field in a digital format broadcasting
KR20200113526A (en) Apparatus for modulating satellite signal of multi channel
KR102281856B1 (en) Apparatus for converting broadcasting signal method for using the same
EP1039751A2 (en) Method and apparatus for converting a digital broadcast signal to a second digital broadcast signal, method and apparatus for receiving this signal and medium for providing a computer readable programme for processing the signal
KR20160106069A (en) Method and apparatus for reproducing multimedia data
JP2000236523A (en) Re-transmitter for catv system
KR20020018231A (en) Multi digital broadcasting receiver
US8704956B2 (en) Apparatus and method for controlling infrastructure based on broadcasting signals
US20070113253A1 (en) On-demand service system and method thereof by applying broadcasting
KR20130114422A (en) A receiver for terrestrial uhdtv broadcasting and an analyzer for terrestrial uhdtv transmission signal
JP2009171381A (en) Terrestrial digital independent broadcast system and apparatus therefor
JP2004135170A (en) Digital broadcasting system, transmitter, receiver, broadcast contents transmitting method, and transmission line switching method
KR101377450B1 (en) Terrestrial broadcast reception system for implementing digital broadcasting by broadcast signal format conversion
JP2003163852A (en) Digital broadcast reception system
KR100853157B1 (en) Set top box capable of receiving signal with high symbol rate

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application