KR960004403Y1 - Satellite broadcasting radio receiving system - Google Patents

Satellite broadcasting radio receiving system Download PDF

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Publication number
KR960004403Y1
KR960004403Y1 KR2019930015661U KR930015661U KR960004403Y1 KR 960004403 Y1 KR960004403 Y1 KR 960004403Y1 KR 2019930015661 U KR2019930015661 U KR 2019930015661U KR 930015661 U KR930015661 U KR 930015661U KR 960004403 Y1 KR960004403 Y1 KR 960004403Y1
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South Korea
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intermediate frequency
frequency signal
signal
satellite broadcasting
power
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KR2019930015661U
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Korean (ko)
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KR950007504U (en
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정진국
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엘지전자 주식회사
구자홍
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/90—Arrangements 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

내용 없음.No content.

Description

위성방송 무선수신 시스템Satellite broadcasting wireless receiving system

제1도는 종래의 기술에 의한 위성 방송 수신 시스템의 블럭도.1 is a block diagram of a satellite broadcast receiving system according to the prior art.

제2도는 본 고안에 의한 위성 방송 무선수신 시스템의 블럭도.2 is a block diagram of a satellite broadcasting wireless reception system according to the present invention.

제3도는 본 고안에 의한 대전력 송출시의 다가구 수신 상태도.Figure 3 is a multi-household reception state at the time of high power transmission according to the present invention.

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

21 : 방송 위성 안테나 23 : 엘엔비(LNB)21: broadcast satellite antenna 23: LNB

25, 27 : 대역통과필터 30 : 증폭부25, 27: band pass filter 30: amplifier

31 : 중간주파신호 송출안테나 33 : 정류기31: middle frequency signal transmission antenna 33: rectifier

35 : 리니어 트랜스 36 : 전원부35: linear transformer 36: power supply

37 : 전원 플러그 50 : 위성방송 중간주파신호 무선송출기37: power plug 50: satellite broadcasting intermediate frequency signal wireless transmitter

51 : 중간주파신호 수신안테나 52 : 튜닝부51: intermediate frequency signal receiving antenna 52: tuning unit

53 : 저역통과필터 54 : 증폭기53 low pass filter 54 amplifier

55 : 역강조부 56 : 영상신호처리부55: reverse emphasis 56: video signal processor

58 : 전압 제어 발진기(VCO) 59 : 에프엠(FM) 검파기58: voltage controlled oscillator (VCO) 59: FM detector

60 : 음성신호처리부 61 : 위성방송 신호 처리부60: voice signal processor 61: satellite broadcast signal processor

62 : 티브이 수상기62: TV receiver

본 고안은 위성방송 수신 시스템에 관한 것으로, 특히 실외에 설치된 중간주파 변환기(LNB)와 실내의 위성 방송수신기를 동축케이블(cable)로 연결하지 않고 무선으로 신호를 수신하도록 하는 위성방송 무선수신 시스템에 관한 것이다.The present invention relates to a satellite broadcasting reception system, and more particularly, to a satellite broadcasting wireless reception system for receiving a signal wirelessly without connecting an intermediate frequency converter (LNB) and an indoor satellite broadcasting receiver installed by a coaxial cable. It is about.

종래의 위성방송 수신시스템은 제1도에 도시된 바와 같이, 방송위성에서 송출된 다운링크데이타(down link data : 11GHz~12GHz) 신호를 위성파라볼라 안테나(parabola antenna)(1)에서 집적하고, 이 안테나(1)로부터 신호를 입력받아 LNB(Low Noise Blockdown Converter)(3)에서 1GHz대의 중간주파수(IF : Intermediate Frequency)로 변환시킨다. 이 IF 주파수는 동축케이블(cable)(5)을 거쳐 TV(13)와 연결된 위성방송 수신기(11)에 입력되며, 상기 동축케이블(5)을 통해 상기 LNB(3) 구동용 전원이 LNB(3)로 입력된다.In the conventional satellite broadcasting receiving system, as shown in FIG. 1, downlink data (11 GHz to 12 GHz) signals transmitted from a broadcasting satellite are integrated in a satellite parabola antenna 1, and The signal is received from the antenna 1 and converted into an intermediate frequency (IF: IF) in a low noise blockdown converter (LNB) 3. The IF frequency is input to the satellite broadcasting receiver 11 connected to the TV 13 via a coaxial cable 5, and the power for driving the LNB 3 is supplied to the LNB 3 through the coaxial cable 5. ) Is entered.

상기와 같은 위성방송 수신 시스템에서 각 방에서 위성방송을 시청하고자 할 때는, 위성방송용 분배기(7)를 설치하여 상기 LNB(3)에서 변환된 IF주파수를 분배시켜 각 방에 설치된 위성방송수신기(11,11')를 통해 TV(13,13')에 음성 및 화상신호를 전달하게 된다.In order to watch satellite broadcasting in each room in the satellite broadcasting receiving system as described above, a satellite broadcasting receiver 11 is installed in each room by distributing the IF frequency converted by the LNB 3 by installing a satellite broadcasting distributor 7. , 11 ') transmits audio and video signals to the TVs 13 and 13'.

이런 경우 각 방에 설치된 위성방송 수신기에 신호를 전송하기 위해 동축케이블을 이용하기 때문에, 상기 동축케이블을 설치하기 위한 인력과 장비가 소모되고, 배선을 위해 벽에 구멍을 뚫는 등 집구조물에 손상을 주게 되는 문제점이 있다.In this case, coaxial cables are used to transmit signals to satellite broadcasting receivers installed in each room. Therefore, manpower and equipment for installing the coaxial cables are consumed, and damage to house structures such as drilling holes in the walls for wiring is required. There is a problem.

따라서, 본 고안의 목적은 상기와 같은 문제점을 해결하기 위하여 IF 신호를 고주파 대전력 증폭기를 사용하여 무선으로 송출하고, 각방에 상기 IF 신호 수신 안테나를 설치하여 상기 IF 신호를 수신함으로써 무선으로 실내에서 위성방송을 수신할 수 있는 위성방송 무선 수신 시스템을 제공하는 것이다.Accordingly, an object of the present invention is to wirelessly transmit an IF signal wirelessly by using a high frequency high-power amplifier in order to solve the above problems, and to receive the IF signal by installing the IF signal receiving antenna in each room. It is to provide a satellite broadcasting wireless receiving system capable of receiving satellite broadcasting.

상기 목적을 달성하기 위한 본 고안의 위성방송 무선수신 시스템은, 안테나에서 집적된 위성신호를 엘엔비(LNB)에서 중간주파신호로 변환시키면 잡음성분을 제거하고 중간주파신호만을 검출하여 n단계로 증폭시켜 대전력화한 후 송출하는 위성방송 중간주파신호 무선송출기와, 상기 위성방송 중간주파신호 무선송출기에서 송출된 신호를 수신하기 위한 중간주파신호 수신안테나와, 상기 중간주파신호 수신안테나에서 수신된 중간주파신호에서 영상신호와 음성신호를 분리, 증폭하여 티브이 수상기로 전송하기 위한 위성방송 신호 처리부를 포함하여 구성된 것을 특징으로 한다.In the satellite broadcasting wireless reception system of the present invention for achieving the above object, when the satellite signal integrated in the antenna is converted from the LNB to the intermediate frequency signal, the noise component is removed and only the intermediate frequency signal is detected and amplified in n steps. A satellite broadcasting intermediate frequency signal radio transmitter for transmitting power after high power, an intermediate frequency signal receiving antenna for receiving a signal transmitted from the satellite broadcasting intermediate frequency signal radio transmitter, and an intermediate frequency received by the intermediate frequency signal receiving antenna And a satellite broadcasting signal processor for separating and amplifying the video signal and the audio signal from the signal and transmitting the amplified video signal to the TV receiver.

이하, 첨부도면을 참조하여 본 고안을 좀더 상세하게 설명하고자 한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

본 고안에 의한 위성방송 무선수신 시스템은 제2도에 도시된 바와 같이, 실외에는 위성방송 신호를 집적하기 위한 위성파라볼라 안테나(21)와, 상기 집적된 위성방송신호를 중간주파신호로 변환시키기 위한 LNB(23)와, 상기 LNB(23)를 통해 나온 중간주파 신호를 증폭하여 무선송출하기 위한 위성방송 중간주파신호 무선송출기(50)가 설치된다.As shown in FIG. 2, the satellite broadcasting wireless reception system according to the present invention includes a satellite parabolic antenna 21 for integrating satellite broadcasting signals outdoors, and an intermediate frequency signal for converting the integrated satellite broadcasting signals into an intermediate frequency signal. An LNB 23 and a satellite broadcasting intermediate frequency signal radio transmitter 50 for amplifying and transmitting radio frequency signals outputted through the LNB 23 are provided.

상기 위성방송 중간주파신호 무선송출기(50)는 중간주파신호만을 증폭하여 송출해야 송출신호의 신뢰성이 높아지므로 상기 LNB(23)에서 출력되는 중간주파신호 중에서 잡음성분을 제거하기 위한 대역통과필터(25)가 필요하며, 이외에 상기 대역통과필터(25)를 통과한 잡음성분이 없는 순수한 중간주파신호를 다단계로 신호를 증폭시키기 위한 증폭부(30)와, 실제 증폭된 중간주파신호를 송출하기 위한 중간주파신호(IF-) 송출안테나(31)와, 상기 증폭부(30)에 필요한 전원과 LNB 구동전압을 공급하기 위한 전원부(36)로 구성된다.Since the satellite broadcasting intermediate frequency signal radio transmitter 50 amplifies and transmits only the intermediate frequency signal, the reliability of the transmission signal is high, and thus the bandpass filter 25 for removing noise components from the intermediate frequency signals output from the LNB 23 is performed. In addition, the amplification unit 30 for amplifying the signal in a multi-step pure pure frequency signal having no noise component passing through the band pass filter 25, and the intermediate for transmitting the actual amplified intermediate frequency signal A frequency signal (IF-) transmitting antenna 31, and a power supply unit 36 for supplying the power required for the amplifier 30 and the LNB driving voltage.

또한 상기 증폭부(30)는 상기 대역통과필터(25)를 통해 나온 중간주파신호가 상기 LNB(23)에서의 에프엠캐리어(FM carrier) 성분이 그대로 가지고 있기 때문에 각 단계마다 스위치를 통해 다단계로 대전력 증폭기(A1,…An)를 직렬연결하여, 증폭량이 작은 경우는 제1고주파 대전력 증폭기(A1)을 통하여 증폭하고, 더 큰 대전력 증폭을 원하는 경우 제1스위치를 온시켜 상기 제1고주파 대전력 증폭기(A1)와 제2고주파 대전력 증폭기(A2)를 직렬로 연결하여 증폭하며, 보다 더 큰 증폭을 원하는 경우 원하는 증폭량 만큼의 스위치들을 온 시켜 상기 고주파 대전력 증폭기들이 다단으로 직렬연결되도록 함으로써 증폭량을 조절한다.In addition, the amplification unit 30 is multi-stepped through the switch in each step because the intermediate frequency signal from the band pass filter 25 has the FM carrier component of the LNB 23 as it is. If the amplification amount is small by connecting the power amplifiers A1,... An in series, the amplification amount is amplified by the first high frequency high power amplifier A 1 . The high frequency large power amplifier A 1 and the second high frequency large power amplifier A 2 are connected in series and amplified, and when amplification is desired, the high frequency large power amplifiers are multi-stage by turning on switches as much as desired. Adjust the amount of amplification by making it connected in series.

그리고 상기 전원부(36)는 플러그(37)가 온되어 외부로부터 전원이 인가되면, 상기 전원전압을 인가받아 상기 위성방송 중간주파신호 무선송출기(50)내에 고주파 대전력 증폭기(A1,A2,A3)의 전원에 필요한 레벨의 교류(AC) 전압으로 변환하도록 선형 트랜스(liner trans)(35)를 연결하고, 그 뒷단에 정류기(33)를 더 연결함으로써 상기 선형트랜스(35)의 출력을 직류(DC) 전압으로 정류하여 상기 LNB(23)의 구동전압으로 공급한다.When the plug 37 is turned on and power is supplied from the outside, the power supply unit 36 receives the power supply voltage, and then receives the high frequency high power amplifiers A 1 , A 2 , in the satellite broadcasting intermediate frequency signal radio transmitter 50. The output of the linear transformer 35 is connected by connecting a linear transformer 35 to convert an AC voltage of a level required for the power supply of A 3 ) and further connecting a rectifier 33 to the rear end thereof. It rectifies to DC voltage and supplies it to the drive voltage of the LNB 23.

한편 실내에는 상기 중간주파신호 송출안테나(31)로부터 송출된 신호를 수신하기 위한 중간주파신호 수신안테나(51)와, 위성방송신호 처리부(61)를 각방마다 설치하여 티브이 수상기(62)와 연결한다.Meanwhile, an indoor frequency signal receiving antenna 51 and a satellite broadcasting signal processor 61 for receiving a signal transmitted from the intermediate frequency signal transmitting antenna 31 are installed in each room and connected to the TV receiver 62. .

상기 위성방송신호 처리부(61)는, 상기 중간주파신호 수신안테나의 출력을 튜닝하기 위한 튜닝부(52), 상기 튜닝된 위성방송신호를 영상신호와 음성신호로 분리, 증폭하여 티브이 수상기로 전송하기 위한 영상신호 처리부(56)와, 음성신호 처리부(60)로 구성된다.The satellite broadcasting signal processing unit 61 is a tuning unit 52 for tuning the output of the intermediate frequency signal receiving antenna, and amplifies and amplifies the tuned satellite broadcasting signal into a video signal and an audio signal to be transmitted to a TV receiver. And a video signal processor 56 and an audio signal processor 60.

여기서 상기 영상신호 처리부(56)는, 저역통과필터(53)와, 증폭기(54) 및 역강조부(de-emphasis)(55)를 순차적으로 연결하여, 상기 저역통과 필터(53)를 통해 상기 튜닝부에서 튜닝된 위성방송 베이스 밴드 신호에서 영상신호만 분리한 후 증폭기를 통해 증폭시키고, 역강조하여 위성방송의 영상신호를 티브이 수상기로 출력하며,상기 음성신호 처리부(60)는, 대역통과 필터(57)와 에프엠 검파기(59)를 순차적으로 연결하고, 상기 에프엠 검파기(59)에 또한 전압 제어 발진기(VCO)(58)를 연결함으로써 상기 대역통과필터(57)를 통해 상기 튜닝부에서 출력되는 베이스 밴드 신호로부터 음성신호만을 분리한 후 전압제어발진신호로 에프엠 검파하여 위성방송의 음성신호를 티브이 수상기(62)로 출력한다.Here, the image signal processor 56 sequentially connects the low pass filter 53, the amplifier 54, and the de-emphasis 55, and through the low pass filter 53. After separating only the video signal from the satellite broadcast baseband signal tuned by the tuning unit, and amplifying through an amplifier, and outputs the video signal of the satellite broadcast to the TV receiver by the reverse emphasis, the voice signal processing unit 60, band pass filter And a voltage controlled oscillator (VCO) 58 connected to the FM detector 59 and sequentially output from the tuning unit through the band pass filter 57. After separating only the voice signal from the baseband signal, the FM is detected by the voltage-controlled oscillation signal and outputs the voice signal of the satellite broadcast to the TV receiver 62.

즉, 상기 위성방송 중간주파신호 무선송출기(50)에서 순수 IF 신호를 중간주파신호 송출안테나(31)를 통해 송출하면, 실내의 각 방에 설치된 중간주파신호 수신안테나(51)에서 이를 수신하여 각각 영상신호와 음성신호를 분리처리한 후 각 방의 티브이 수상기(62)로 전송함으로써 위성방송을 시청하게 되는 것이다.That is, when the satellite broadcasting intermediate frequency signal wireless transmitter 50 transmits a pure IF signal through the intermediate frequency signal transmitting antenna 31, the intermediate frequency signal receiving antenna 51 installed in each room in the room receives the respective signals. After separating the video signal and the audio signal is transmitted to the TV receiver 62 of each room to watch satellite broadcasting.

또한, 이러한 시설을 이용하면 제3도에 도시된 바와 같이, 실외에 위성방송 안테나 외에 LNB와 하나의 위성방송 중간주파신호 무선송출기(50)를 설치하고, 각 가구마다 중간주파신호 수신안테나(51,51',51＂51'＂)를 설치하여 인접하는 여러 가구에 위성 방송을 수신할 수 있다.In addition, when such a facility is used, as shown in FIG. 3, in addition to the satellite broadcasting antenna, an LNB and one satellite broadcasting radio frequency transmitter 50 are installed outside, and the intermediate frequency signal receiving antenna 51 is provided for each household. , 51 ', 51 ＂51'＂) can be installed to receive satellite broadcasts in several adjacent households.

이상에서와 같이 본 고안에 의하면, 위성방송 중간주파신호 송출기와 중간주파신호 수신안테나를 이용하여 무선으로 실내에 위성방송 중간주파신호를 수신하도록 함으로써, 종래에 실외와 실내를 연결하기 위해 동축케이블을 설치해야 하는 번거로움을 없앴으며, 하나의 위성방송 중간주파신호 송출기로 여러구에서 위성방송을 시청할 수 있기 때문에 여러가구가 밀집해 있는 지역의 경우에는 더욱 편리하게 위성방송을 시청할 수 있다.According to the present invention as described above, by using the satellite broadcasting intermediate frequency signal transmitter and the intermediate frequency signal receiving antenna to wirelessly receive the satellite broadcasting intermediate frequency signal indoors, the conventional coaxial cable for connecting the outdoor and indoor It eliminates the hassle of installing and can watch satellite broadcasting in several households with one satellite broadcasting mid-frequency signal transmitter, so you can watch satellite broadcasting more conveniently in the area where many households are concentrated.

Claims (4)

안테나에서 집적된 위성신호를 엘엔비(LNB)에서 중간주파신호로 변환시키면 잡음성분을 제거하고 중간주파신호만을 검출하여 n단계로 증폭시켜 대저력화한 후 송출하는 위성방송 중간주파신호 무선송출기와 상기 위성방송 중간주파신호 무선송출기에서 송출된 신호를 수신하기 위한 중간주파신호 수신안테나와, 상기 중간주파신호 수신안테나에서 수신된 중간주파신호에서 영상신호와 음성신호를 분리, 증폭하여 티브이 수상기로 전송하기 위한 위성방송 신호 처리부를 포함하여 구성된 것을 특징으로 하는 위성방송 무선수신 시스템.When the satellite signal integrated in the antenna is converted into an intermediate frequency signal from the LNB, the noise component is removed, and only the intermediate frequency signal is detected, amplified in n steps, and then reduced, and then transmitted. Satellite broadcasting intermediate frequency signal receiving the signal transmitted from the radio transmitter and the intermediate frequency signal receiving antenna, the intermediate frequency signal received from the intermediate frequency signal receiving antenna, and amplifying the video signal and audio signal transmitted to the TV receiver Satellite broadcasting wireless receiving system, characterized in that configured for including a satellite broadcasting signal processing unit. 제1항에 있어서, 상기 위성방송 중간주파신호 무선송출기는 방송위성으로부터 송출된 신호 중 중간주파신호 외에 다른 잡음성분을 제거하여 중간주파신호만을 검출하는 대역통과 필터와, 상기 대역통과 필터에서 전송된 중간주파신호를 n단계에 걸쳐 대전력 증폭시키는 증폭부와, 상기 엘엔비(LNB)와 상기 증폭부에 전원을 공급하기 위한 전원부와, 상기 증폭부로부터 증폭된 중간주파신호를 송출하기 위한 중간주파신호 송출안테나를 포함하여 구성된 것을 특징으로 하는 위성방송 무선수신 시스템.The radio frequency transmitter of claim 1, wherein the satellite broadcasting intermediate frequency signal radio transmitter detects only an intermediate frequency signal by removing noise components other than the intermediate frequency signal among the signals transmitted from the broadcasting satellite, and the bandpass filter transmitted from the bandpass filter. An amplifying unit for power amplifying the intermediate frequency signal in n steps, a power supply unit for supplying power to the LNB and the amplification unit, and an intermediate frequency signal for transmitting the amplified intermediate frequency signal from the amplifying unit Satellite broadcasting wireless receiving system comprising a signal transmitting antenna. 제2항에 있어서, 상기 증폭부는 n개의 고주파 대전력 증폭기와, 실내에 설치된 티브이 수에 따라 상기 각각의 고주파 대전력 증폭기 사이에서 개방 또는 단락되어 상기 고주파 대전력 증폭기들을 직렬연결하거나 연결하지 않음으로써 증폭량을 조절하는 스위치부를 포함하여 구성된 것을 특징으로 하는 위성방송 무선수신 시스템.The method of claim 2, wherein the amplifying unit is open or shorted between the n high frequency high power amplifiers and the high frequency high power amplifiers according to the number of TVs installed in the room, thereby not connecting or connecting the high frequency high power amplifiers in series. Satellite broadcasting wireless receiving system comprising a switch unit for adjusting the amount of amplification. 제1항에 있어서, 상기 전원부는 외부로부터 교류전원이 인가되면 이를 상기 증폭기에 적합한 레벨의 교류전원으로 변환시키기 위한 선형 트랜스와, 상기 선형 트랜스의 출력을 정류하여 엘엔비 구동에 적합하도록 직류 전원으로 변환시키기 위한 정류기를 포함하여 구성된 것을 특징으로 하는 위성방송 무선수신 시스템.The DC power supply of claim 1, wherein the AC power supply unit converts the AC power into an AC power having a level suitable for the amplifier when the AC power is applied from the outside, and rectifies the output of the linear transformer to a DC power source to be suitable for driving the LNB. Satellite broadcasting wireless receiving system comprising a rectifier for converting.
KR2019930015661U 1993-08-14 1993-08-14 Satellite broadcasting radio receiving system KR960004403Y1 (en)

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