KR960036848A - Secam broadcasting stereo receiver and reception control method - Google Patents

Secam broadcasting stereo receiver and reception control method Download PDF

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Publication number
KR960036848A
KR960036848A KR1019950004829A KR19950004829A KR960036848A KR 960036848 A KR960036848 A KR 960036848A KR 1019950004829 A KR1019950004829 A KR 1019950004829A KR 19950004829 A KR19950004829 A KR 19950004829A KR 960036848 A KR960036848 A KR 960036848A
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KR
South Korea
Prior art keywords
signal
voice
audio signal
nikcam
stereo
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KR1019950004829A
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Korean (ko)
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KR970010262B1 (en
Inventor
강춘택
전철완
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구자홍
엘지전자 주식회사
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Priority to KR95004829A priority Critical patent/KR970010262B1/en
Publication of KR960036848A publication Critical patent/KR960036848A/en
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Publication of KR970010262B1 publication Critical patent/KR970010262B1/en

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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
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H04N5/607—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for more than one sound signal, e.g. stereo, multilanguages
    • 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
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Television Receiver Circuits (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

본 발명은 세캄 엘(Secam-L) 방송방식의 무선주파수가 전송시 AM 음성신호와 FM 음성 캐리어신호를 각각 동시에 검출하여 우선적으로 FM 음성 캐리어신호에 니캄(Nicam) 음성신호가 실려 있는지 판단하여 니캄 음성신호를 우선적으로 수신 할 수 있도록 한 세캄 방송방식의 스테레오 수신장치 및 수신 제어방법에 관한 것이다.The present invention simultaneously detects AM voice signal and FM voice carrier signal at the same time when the radio frequency of Secam-L broadcasting system is transmitted, and determines whether the Nicam voice signal is loaded on the FM voice carrier signal. The present invention relates to a stereo receiver and a reception control method of the Sekam broadcast system that can receive a voice signal preferentially.

종래 세캄 방송방식의 음성신호 검출장치는 마이컴(5)에서 출력된 음성 시스템 제어신호에 의해 AM/FM용 SAW 필터부(2)(3)에서 필터링된 AM/FM 음성신호를 스위칭 선택하여 음성신호 검파부(7)에 인가하면, 상기 음성신호 검파부(7)는 마이컴(5)에서 출력된 영상 시스템 제어신호에 의해 AM음성신호를 우선 선택하여 검파함으로서 FM 음성신호에 실려있는 세캄 방송방식의 음성신호를 검파하지 못하는 문제점이 있었다.The conventional Secam broadcasting voice signal detection apparatus switches and selects the AM / FM voice signal filtered by the SAW filter unit (2) (3) for AM / FM by the voice system control signal output from the microcomputer (5). When applied to the detector 7, the audio signal detector 7 first selects and detects an AM audio signal according to the video system control signal output from the microcomputer 5, so that the audio signal is stored in the FM audio signal. There was a problem that can not detect the voice signal.

본 발명은 이와 같은 종래 문제점을 해결하기 위하여 마이컴의 제어신호에 의해 AM 음성신호를 검파하면서 동시에 FM 음성신호를 검파하여 우선적으로 FM 음성신호에 니캄 음성신호가 포함되어 있는지 판단한 후 상기 FM 음성신호에 니캄 음성신호가 포함되어 있을 경우 우선적으로 니캄 음성신호를 수신할 수 있도록 한 것으로 TV 또는 VTR의 음성신호 처리부에 적용한다.The present invention detects an AM voice signal by a control signal of a microcomputer and simultaneously detects an FM voice signal by determining whether the Nikcam voice signal is included in the FM voice signal. When the Nikcam audio signal is included, the Nikcam audio signal is preferentially received and applied to the audio signal processing unit of the TV or VTR.

Description

세캄 방송방식의 스테레오 수신장치 및 수신 제어방법Secam broadcasting stereo receiver and reception control method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명의 세캄 방송방식의 스테레오 수신장치의 블럭도, 제3도는 본 발명의 음성검파 및 스위칭부 구조를 보인 상세블럭도, 제4도는 본 발명의 니캄음성신호 검파기의 상세블럭도.2 is a block diagram of a Secam broadcast stereo receiver according to an embodiment of the present invention, and FIG. 3 is a detailed block diagram showing the structure of the voice detection and switching unit of the present invention, and FIG. 4 is a detailed block diagram of the Nikcam speech signal detector of the present invention.

Claims (2)

전송된 세캄 방송방식의 무선주파수(RF) 신호를 입력받아 중간 주파수(IF) 처리하여 출력하는 튜너부(11)와, 상기 튜너부(11)에서 중간 주파수 처리된 신호중 AM 음성신호 만을 출력시키는 AM 처리부(12)와, 상기 중간 주파수 처리된 신호중 FM 음성신호 만을 출력시키는 FM 처리부(13)와, I2C제어 버스라인이 연결되어 시스템 각 부를 제어하는 마이컴(14)과, 상기 마이컴(14)에 연결된 I2C제어버스라인에 의하여 AM 처리부(12) 또는 FM 처리부(13)에서 출력된 AM/FM 음성신호를 검파하여 스위칭 출력시키는 음성검파 및 스위칭부(15)와, 상기 검파되어 스위칭 출력된 음성신호를 입력받아 I2C제어 버스라인에 의하여 스위칭 출력된 음성신호를 검파하는 음성신호 검파부(16)와 검파된 음성신호를 증폭 출력시키는 음성 증폭부(17)와, 상기 스위칭 선택된 음성신호를 리드한 마이컴(14)의 영상 시스템 제어신호에 의해 FM 음성신호에 실린 영상신호를 검파하는 영상신호 검파부(18)로 구성된 것을 특징으로 하는 세캄 방송방식의 스테레오 수신장치.A tuner unit 11 for receiving the transmitted radio frequency (RF) signal of the transmitted Secam broadcasting method and processing the intermediate frequency (IF), and outputting only the AM audio signal of the intermediate frequency processed signal from the tuner unit 11; A processing unit 12, an FM processing unit 13 for outputting only an FM audio signal among the intermediate frequency processed signals, a microcomputer 14 connected to an I 2 C control bus line to control each unit, and the microcomputer 14 A voice detection and switching unit 15 for detecting and switching the AM / FM audio signal output from the AM processing unit 12 or the FM processing unit 13 by an I 2 C control bus line connected thereto; A voice signal detector 16 for detecting the voice signal switched by the I 2 C control bus line by receiving the received voice signal, a voice amplifier 17 for amplifying and outputting the detected voice signal, and the switched selected voice. Lead signal The microcomputer 14 controls the imaging system sekam signal broadcasting system of stereo reception device, characterized in that consisting of the video signal detector 18, which detects the video signals carried on the FM audio signal by the. I2C제어 버스라인을 통해 음성검파 및 스위칭부(15)에 입력된 신호를 리드하여 영상시스템을 검사하는 제1과정과, 영상시스템 검사결과 세캄 엘 방송방식(주음성방식)이면 주음성에 니캄 스테레오 음성신호가 포함되어 있는지 검사하는 제2과정과, 검사결과 니캄 스테레오 음성신호가 포함되어 있으면 우선적으로 FM 처리부(13)에서 출력된 신호를 입력받아 음성신호 검파부(16)를 통해 니캄 스테레오 음성신호를 검출하는 제3과정과, 상기 제2과정의 결과, 니캄 스테레오 음성신호가 포함되어 있지 않으면 AM 처리부(12)에서 출력된 신호를 입력받아 음성신호 검파부(16)를 통해 AM 음성신호를 검파하여 바이패스시키는 제4과정과, 상기 제1과정의 결과 팔-비지 방송방식(Pal-B/G:부음성 방식)이면 부음성에 니캄 스테레오 음성신호가 포함되어 있는지 검사하는 제5과정과, 검사결과 니캄 스테레오 음성신호가 포함되어 있으면 FM 처리부(13)에서 출력된 신호를 입력받아 니캄 스테레오 음성신호를 검출하는 제6과정과, 상기 제5과정의 결과 니캄 스테레오 음성신호가 포함되어 있지 않으면 FM 스테레오 음성신호 또는 FM 모노 음성신호를 검출하는 제7과정으로 진행되는 세캄 방송방식의 스테레오 수신방법.The first process of inspecting the imaging system by reading the signal input to the voice detection and switching unit 15 through the I 2 C control bus line, and the result of the imaging system inspection is the Secam El broadcasting system (main audio system). The second process of checking whether the Nikam stereo audio signal is included, and if the Nikcam stereo audio signal is included as a result of the test, first receives the signal output from the FM processor 13 and receives the Nikcam stereo signal through the voice signal detector 16. A third process of detecting a voice signal and, as a result of the second process, if the Nikcam stereo voice signal is not included, receives the signal output from the AM processor 12 and receives the AM voice signal through the voice signal detector 16. In the fourth process of detecting and bypassing the signal, and the result of the first process, the arm-busy broadcasting method (Pal-B / G: sub-voice method) checks whether the sub-audio includes the Nikcam stereo voice signal. And a sixth process of detecting the Nikcam stereo audio signal by receiving the signal output from the FM processing unit 13 if the Nikcam stereo audio signal is included in the inspection process and the Nikcam stereo audio signal as a result of the fifth process. If not, the Secam broadcasting stereo receiving method proceeds to the seventh step of detecting the FM stereo audio signal or FM mono audio signal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR95004829A 1995-03-09 1995-03-09 Apparatus for receiving stereo signal KR970010262B1 (en)

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Application Number Priority Date Filing Date Title
KR95004829A KR970010262B1 (en) 1995-03-09 1995-03-09 Apparatus for receiving stereo signal

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Application Number Priority Date Filing Date Title
KR95004829A KR970010262B1 (en) 1995-03-09 1995-03-09 Apparatus for receiving stereo signal

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KR960036848A true KR960036848A (en) 1996-10-28
KR970010262B1 KR970010262B1 (en) 1997-06-23

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