KR970014305A - RF modulator with bilingual broadcast modulation - Google Patents

RF modulator with bilingual broadcast modulation Download PDF

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Publication number
KR970014305A
KR970014305A KR1019950024971A KR19950024971A KR970014305A KR 970014305 A KR970014305 A KR 970014305A KR 1019950024971 A KR1019950024971 A KR 1019950024971A KR 19950024971 A KR19950024971 A KR 19950024971A KR 970014305 A KR970014305 A KR 970014305A
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KR
South Korea
Prior art keywords
signal
modulator
modulating
voice
frequency
Prior art date
Application number
KR1019950024971A
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Korean (ko)
Inventor
서용범
Original Assignee
김광호
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.)
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Publication date
Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019950024971A priority Critical patent/KR970014305A/en
Priority to CN96109293A priority patent/CN1146688A/en
Publication of KR970014305A publication Critical patent/KR970014305A/en

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Classifications

    • 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)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

2개국어방송 변조기능을 구비한 RF변조기는 RF변조기에 두개의 음성신호변회로를 구비하고, 각각의 채널로 분리되어 입력되는 2개국어방송신호를 동시에 변조하여 2캐리어방식으로 송출하도록 함으로써, 2개국어방송을 본래의 방송상태대로 변조하여 송출한다. 따라서, 본 발명의 장치는 2개국어방송을 RF변조기를 통해 변조하여 수신하더라도 본래의 신호조건에 따른 2개국어방송의 재생이 가능하므로, RF변조기를 사용하는 VCR등의 영사기기의 기능을 강화시킴으로써, 사용자의 만족도를 높일수 있는 효과가 있다.The RF modulator with bilingual broadcasting modulation function is provided with two voice signal modulation circuits in the RF modulator, and simultaneously modulates the bilingual broadcasting signal inputted into each channel to be transmitted in a two-carrier type. It transmits bilingual broadcasting by modulating the original broadcasting status. Therefore, the apparatus of the present invention can reproduce the bilingual broadcast according to the original signal condition even if the bilingual broadcast is modulated and received through the RF modulator, thereby enhancing the function of the projection apparatus such as a VCR using the RF modulator. By doing so, there is an effect that can increase the user's satisfaction.

Description

2개국어방송 변조기능을 구비한 RF변조기RF modulator with bilingual broadcast modulation

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명의 바람직한 실시예에 따른 2개국어방송 변조기능을 구비한 RF변조기의 구성을 나타내는 블록도.2 is a block diagram showing the configuration of an RF modulator having a bilingual broadcast modulation function according to a preferred embodiment of the present invention.

Claims (5)

음성 및 영상신호를 텔레비전방송으로 변조하는 RF변조기에 있어서, 영상신호를 입력받아 AM변조하는 영상신호변조부; 각각의 채널로 분리되어 입력되는 2개국어방송신호중 제1국어방송에 대한 제1음성신호를 FM변조하는 제1음성신호변조부; 상기 2개국어방송신호중 제2국어방송에 대한 제2음성신호를 FM변조하는 제2음성신호변조부; 및 상기 제1음성신호변조부 내지 상기 제2음성신호변조부 및 상기 영상신호변조부에서 변조되어 출력된 음성 및 영상신호들을 하나의 RF신호로 혼합하는 제1혼합기를 포함하는 2개국어방송 변조기능을 구비한 RF변조기.An RF modulator for modulating audio and video signals through television broadcasting, the RF modulator comprising: a video signal modulator for receiving an AM signal and modulating the video signal; A first voice signal modulator for FM-modulating a first voice signal for a first language broadcast among two language broadcast signals inputted separately into respective channels; A second voice signal modulator for FM-modulating a second voice signal for a second language broadcast among the bilingual broadcast signals; And a first mixer for mixing audio and video signals modulated and output by the first audio signal modulator to the second audio signal modulator and the video signal modulator into one RF signal. RF modulator with function. 제1항에 있어서, 상기 제2음성신호변조부와 제1혼합기 사이에는 상기 제2음성신호변조부의 동작실행 여부를 선택하기 위한 스위치부를 더 구비하고 있는 것을 특지으로 하는 2개국어방송변조기능을 구비한 RF변조기.2. The bilingual broadcasting modulation function according to claim 1, further comprising a switch unit for selecting whether or not to operate the second audio signal modulation unit between the second audio signal modulation unit and the first mixer. RF modulator. 제1항에 있어서, 상기 영상신호변조는 입력되는 영상신호를 AM변조하기 위한 영상반송파를 발생하는 영상반송파발진기; 및 상기 영상반송파발진기로부터 입력되는 영상반송파를 상기 영상신호의 신호파형에 따라 진폭변조하여 출력하는 AM변조수단을 포함하는 것을 특징으로 하는 2개국어방송 변조기능을 구비한 RF변조기.2. The apparatus of claim 1, wherein the image signal modulation comprises: an image carrier oscillator for generating an image carrier for AM modulation of an input video signal; And an AM modulating means for modulating and outputting an image carrier wave input from the image carrier oscillator in accordance with a signal waveform of the image signal. 제3항에 있어서, 상기 제1음성신호변조부는 상기 제1음성신호를 입력받기 위한 제1입력단; 상기 제1입력단을 통해 제1음성신호를 주파수변조하기 위한 제1음성반송파를 발생하는 제1음성판송파발진기; 상기 제1음성반송파를 상기 제1음성신호의 신호파형에 따라 주파수 변조하여 출력하는 제1FM변조수단; 및 상기 제1FM변조수단에서 출력된 변조파를 상기 영상반송파발진기로부터 입력되는 영상반송파의 주파수로 변환시킨 제1FM신호를 상기 제1혼합기로 출력하는 제1주파수변환기로 이루어진 것을 특징으로 하는 2개국어 방송 변조기능을 구비한 RF변조기.4. The apparatus of claim 3, wherein the first voice signal modulator comprises: a first input terminal for receiving the first voice signal; A first speech carrier oscillator for generating a first speech carrier for frequency modulating a first speech signal through the first input terminal; First FM modulating means for frequency modulating and outputting the first voice carrier according to a signal waveform of the first voice signal; And a first frequency converter configured to output a first FM signal obtained by converting a modulated wave output from the first FM modulator to a frequency of an image carrier input from the image carrier oscillator, to the first mixer. RF modulator with broadcast modulation. 제4항에 있어서, 상기 제2음성신호변조부는 상기 제2음성신호를 입력받기 위한 제2신호입력단; 상기 제2입력단을 통해 입력된 제2음성신호를 주파수변조하기 위한 제2음성반송파를 발생하는 제2음성판송파발진기; 상기 제2음성반송파를 상기 제2음성신호의 신호파형에 따라 주파수변조하여 출력하는 제2FM변조수단; 상기 제2FM변조수단에서 출력된 변조파의 내용을 수신측에서 바르게 재생하도록 하기 위한 파일럿신호를 발생하는 파일럿신호발생수단; 상기 제2FM변조수단에서 출력된 변조파와 상기 파일럿신호를 혼합하는 제2혼합기; 및 상기 제2혼합기의 출력신호를 상기 영상반송파발진기로부터 입력되는 영상반송파의 주파수로 변환시킨 제2FM신호를 상기 제1혼합기로 출력하는 제2주파수변환기로 이루어진 것을 특징으로 하는 2개국어방송 변조기능을 구비한 RF변조기.The apparatus of claim 4, wherein the second voice signal modulator comprises: a second signal input terminal for receiving the second voice signal; A second speech carrier oscillator for generating a second speech carrier for frequency modulating the second speech signal inputted through the second input terminal; Second FM modulating means for frequency-modulating the second voice carrier in accordance with the signal waveform of the second voice signal; Pilot signal generating means for generating a pilot signal for correctly reproducing the contents of the modulated wave output from the second FM modulating means at a receiving side; A second mixer for mixing the modulated wave output from the second FM modulator and the pilot signal; And a second frequency converter configured to output a second FM signal obtained by converting an output signal of the second mixer into a frequency of an image carrier input from the image carrier oscillator to the first mixer. RF modulator having a. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950024971A 1995-08-14 1995-08-14 RF modulator with bilingual broadcast modulation KR970014305A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019950024971A KR970014305A (en) 1995-08-14 1995-08-14 RF modulator with bilingual broadcast modulation
CN96109293A CN1146688A (en) 1995-08-14 1996-08-02 Radio modulator for modulating multiplex composite audio signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950024971A KR970014305A (en) 1995-08-14 1995-08-14 RF modulator with bilingual broadcast modulation

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KR970014305A true KR970014305A (en) 1997-03-29

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KR1019950024971A KR970014305A (en) 1995-08-14 1995-08-14 RF modulator with bilingual broadcast modulation

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Publication number Publication date
CN1146688A (en) 1997-04-02

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