KR940017276A - Voice Multicasting Reception System - Google Patents

Voice Multicasting Reception System Download PDF

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Publication number
KR940017276A
KR940017276A KR1019920026005A KR920026005A KR940017276A KR 940017276 A KR940017276 A KR 940017276A KR 1019920026005 A KR1019920026005 A KR 1019920026005A KR 920026005 A KR920026005 A KR 920026005A KR 940017276 A KR940017276 A KR 940017276A
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KR
South Korea
Prior art keywords
voice
pilot signal
signal
detecting
amplifying
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KR1019920026005A
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Korean (ko)
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KR100270361B1 (en
Inventor
이규홍
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이헌조
주식회사 금성사
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Publication of KR100270361B1 publication Critical patent/KR100270361B1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06Receivers

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Television Receiver Circuits (AREA)

Abstract

본 발명은 전압제어 발진기를 이용하여 발진주파수를 설정해 놓고 입력되는 방송신호의 위상을 비교하여 그 결과값으로 스테레오 방송과 다중방송을 선택할 수 있도록 한 음성다중방송수신 시스템에 관한 것으로서, 이러한 본 발명의 목적은 입력되는 방송신호에서 음성중간주파를 검출하는 음성중간주파 검출수단과, 상기 음성중간주파 검출수단에서 얻어진 음성중간 주파에서 주음성신호와 부음성신호를 검파하는 주음성검파수단 및 부음성검파수단과, 상기 주음성검파수단에서 얻어진 주음성신호를 소정레벨로 증폭시켜 출력하는 제1 음성신호 증폭부수단과, 상기 부음성검파 수단에서 얻어진 부음성신호를 소정레벨로 증폭시켜 출력하는 제2 음성신호 증폭수단과, 상기 제2 음성신호 증폭수단에서 출력된 음성신호에서 파일롯트 신호를 검출하는 파일롯트 신호검출 수단과, 상기 파일롯트 신호 검출수단에서 출력된 파일롯트 신호를 디코딩하여 출력하는 파일롯트 신호 디코딩 수단과, 상기 파일롯트 신호 디코딩 수단에서 출력된 신호에 따라 음성모드를 선택하는 음성모드 선택수단과, 상기 음성모드 선택수단에서 출력된 신호에 따라 상기 제1 및 제2 음성 신호 증폭수단에서 각각 출력된 음성신호를 매트릭스하여 각 채널(L,R)로 출력시키는 매트릭스 수단을 구비함으로서 달성된다.The present invention relates to a voice multi-broadcasting reception system that sets a frequency of oscillation using a voltage controlled oscillator and compares the phase of an input broadcast signal to select stereo broadcasting and multicasting as a result. The objectives are: voice intermediate frequency detection means for detecting a voice intermediate frequency from an input broadcast signal, main voice detection means and sub voice detection means for detecting a main audio signal and a sub-audio signal at a voice intermediate frequency obtained by the voice intermediate frequency detection means. Means, a first audio signal amplifying unit for amplifying and outputting the main audio signal obtained by the main voice detecting means to a predetermined level, and a second voice for amplifying and outputting the sub voice signal obtained by the sub voice detecting means to a predetermined level. Detecting a pilot signal from the signal amplifying means and the audio signal output from the second audio signal amplifying means; A pilot signal detecting means, a pilot signal decoding means for decoding and outputting a pilot signal output from the pilot signal detecting means, and a voice mode for selecting a voice mode according to the signal output from the pilot signal decoding means And a matrix means for matrixing the voice signals output from the first and second voice signal amplifying means in accordance with the signals output from the voice mode selecting means and outputting them to the respective channels L and R. do.

Description

음성 다중방송 수신시스템Voice Multicasting Reception System

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

제1도는 본 발명 음성다중 방송 수신시스템 블럭구성도, 제2도는 제1도의 파일롯트 신호검출부 및 파일롯트 신호 디코더부 상세 블럭구성도, 제3도의 제2도의 상세회로도.FIG. 1 is a block diagram of the present invention, and FIG. 2 is a detailed block diagram of the pilot signal detector and the pilot signal decoder of FIG. 1, and FIG.

Claims (3)

입력되는 방송신호에서 음성중간주파를 검출하는 음성중간주파 검출수단과, 상기 음성중간주파 검출수단에서 얻어진 음성중간 주파에서 주음성신호와 부음성신호를 검파하는 주음성검파수단 및 부음성검파수단과, 상기 주음성검파수단에서 얻어진 주음성신호를 소정레벨로 증폭시켜 출력하는 제1 음성신호 증폭수단과, 상기 부음성검파 수단에서 얻어진 부음성신호를 소정레벨로 증폭시켜 출력하는 제2 음성신호 증폭수단과, 상기 제2 음성신호 증폭수단에서 출력된 음성신호에서 파일롯트 신호를 검출하는 파일롯트 신호검출 수단과, 상기 파일롯트 신호 검출수단에서 출력된 파일롯트 신호를 디코딩하여 출력하는 파일롯트 신호 디코딩 수단과, 상기 파일롯트 신호 디코딩 수단에서 출력된 신호에 따라 음성모드를 선택하는 음성모드 선택수단과, 상기 음성모드 선택수단에서 출력된 신호에 따라 상기 제1 및 제2 음성 신호 증폭수단에서 각각 출력된 음성신호를 매트릭스하여 각 채널(L,R)로 출력시키는 매트릭스 수단을 포함하여 된 것을 특징으로 한 음성다중방송 수신시스템.A voice intermediate frequency detecting means for detecting a voice intermediate frequency from an input broadcast signal, a main voice detection means and a sub voice detection means for detecting a main audio signal and a sub-audio signal from a voice intermediate frequency obtained by the voice intermediate frequency detecting means; First audio signal amplifying means for amplifying and outputting the main audio signal obtained by the main voice detecting means to a predetermined level, and a second audio signal amplifying means for amplifying and outputting the negative audio signal obtained from the sub voice detecting means to a predetermined level. Means, a pilot signal detecting means for detecting a pilot signal from the voice signal output from the second voice signal amplifying means, and a pilot signal decoding for decoding and outputting the pilot signal output from the pilot signal detecting means. Means, and a voice mode selecting means for selecting a voice mode according to the signal output from the pilot signal decoding means; Matrix means for matrixing the voice signals output from the first and second voice signal amplifying means according to the signals output from the voice mode selecting means and outputting the voice signals to the respective channels L and R, respectively. Voice multiple broadcasting reception system. 제1항에 있어서, 파일롯트 신호검출수단은 입력음성신호를 소정레벨 증폭시키는 증폭기(6a)와, 상기 증폭기(6a)에서 출력된 음성신호에서 파일롯트 신호를 검출하는 검출기(6b)로 이루어짐을 특징으로 한 음성다중방송 수신시스템.2. The pilot signal detecting means according to claim 1, wherein the pilot signal detecting means comprises an amplifier (6a) for amplifying a predetermined level of an input audio signal and a detector (6b) for detecting a pilot signal from the audio signal output from the amplifier (6a). Voice multicasting reception system characterized in that. 제1항에 있어서, 파일롯트 신호 디코딩수단은 입력파일롯트 신호를 소정레벨 증폭시키는 파일롯트 신호 증폭기(7a)와, 상기 파일롯트 신호 증폭기(7a)에서 얻어진 파일롯트 신호와 외부에서 인가되는 발진주파수와의 위상을 비교하는 위상비교부(7b)와, 상기 위상비교부(7b)에서 얻어진 파일롯트 신호를 소정대역으로 필터링하는 필터부(7c)와, 상기 필터부(7c)에서 출력된 신호를 입력받아 전압 제어하여 발진주파수를 출력하여 상기 위상비교부(7b)에 입력시키는 전압제어 발진부(7d)와, 상기 위상 비교부(7b)에서 얻어진 위상차에 상응하는 DC 전압을 발생하는 전압발생부(7e)와, 상기 전압발생부(7e)에서 출력된 전압과 각각 설정된 기준전압(1/3 vcc, 2/3 vcc)과 비교하고 그 결과값을 출력하는 비교부(7f)로 이루어진 것을 특징으로 한 음성다중방송 수신시스템.2. The pilot signal decoding means according to claim 1, wherein the pilot signal decoding means includes a pilot signal amplifier 7a for amplifying a predetermined level of the input pilot signal, a pilot signal obtained from the pilot signal amplifier 7a, and an oscillation frequency applied from the outside. A phase comparator 7b for comparing the phase with the filter, a filter part 7c for filtering the pilot signal obtained by the phase comparator 7b into a predetermined band, and a signal output from the filter part 7c. A voltage controlled oscillator 7d for inputting voltage and outputting an oscillation frequency and inputting the oscillation frequency to the phase comparator 7b; and a voltage generator for generating a DC voltage corresponding to the phase difference obtained by the phase comparator 7b. 7e) and a comparator 7f for comparing the voltage output from the voltage generator 7e with the reference voltages (1/3 vcc, 2/3 vcc) set and outputting the resultant values. One voice multiple broadcasting reception system. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920026005A 1992-12-29 1992-12-29 Voice multi-program receiving device KR100270361B1 (en)

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KR1019920026005A KR100270361B1 (en) 1992-12-29 1992-12-29 Voice multi-program receiving device

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Application Number Priority Date Filing Date Title
KR1019920026005A KR100270361B1 (en) 1992-12-29 1992-12-29 Voice multi-program receiving device

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KR940017276A true KR940017276A (en) 1994-07-26
KR100270361B1 KR100270361B1 (en) 2000-11-01

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JP4434758B2 (en) * 2004-01-22 2010-03-17 三洋電機株式会社 Audio signal processing circuit
KR100747545B1 (en) 2006-01-03 2007-08-08 엘지전자 주식회사 Multi-television system haved function of auto-correction and method thereof

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