KR950016386A - Analog / digital satellite broadcasting receiver - Google Patents

Analog / digital satellite broadcasting receiver Download PDF

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Publication number
KR950016386A
KR950016386A KR1019930025978A KR930025978A KR950016386A KR 950016386 A KR950016386 A KR 950016386A KR 1019930025978 A KR1019930025978 A KR 1019930025978A KR 930025978 A KR930025978 A KR 930025978A KR 950016386 A KR950016386 A KR 950016386A
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KR
South Korea
Prior art keywords
signal
outputting
analog
video
demodulator
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Application number
KR1019930025978A
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Korean (ko)
Inventor
최장진
Original Assignee
김광호
삼성전자 주식회사
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Publication date
Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019930025978A priority Critical patent/KR950016386A/en
Publication of KR950016386A publication Critical patent/KR950016386A/en

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Abstract

위성방송 수신기에 관한 것으로, 특히 하나의 위성방송 수신기로 아날로그 또는 디지탈 위성방송을 수신하는 아날로그 디지탈 겸용 위성방송 수신기에 관한 것이다. 별도의 아날로그 위성방송 수신기와 디지탈 위성방송 수신기를 구비하지 않고 사용자의 스위치 선택에 따라 아날로그 위성방송과 디지탈 위성방송을 하나의 수신기로 겸용으로 사용한다.The present invention relates to a satellite broadcasting receiver, and more particularly, to an analog digital satellite broadcasting receiver for receiving analog or digital satellite broadcasting with one satellite broadcasting receiver. It does not have a separate analog satellite receiver and digital satellite receiver, and it uses analog satellite and digital satellite broadcast as one receiver according to the user's switch selection.

Description

아날로그/디지탈 위성방송 겸용수신기Analog / digital satellite broadcasting receiver

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

제2도는 일반적인 디지탈 위성방송 수신기의 블럭구성도,2 is a block diagram of a general digital satellite broadcasting receiver,

제3도는 본 발명에 따른 아날로그 디지탈 겸용 위성방송 수신기의 블럭구성도 도면상의 참조부호들 중 주용 부호의 설명.3 is a block diagram of an analog digital satellite broadcasting receiver according to the present invention.

Claims (2)

아날로그/디지탈 위성방송 겸용 수신기에 있어서, 위성안테나와 LNB로부터 방송신호의 선국채널을 동조시켜 약 27MHZ정도의 대역폭을 갖는 반송파신호를 출력하는 튜너(31)와, 상기 튜너(31)로부터 출력된 아날로그 위성방송신호와 디지탈 위성방송신호를 스위칭 선택하는 제1스위칭부(32)와, 상기 제1스위칭부(32)에 의해 스위칭 선택된 동조된 채널신호를 약 27MHZ정도의 대역폭을 갖는 반송파 신호로 필터링하여 출력하는 제1중간주파릴터(33)와, 상기 필터링된 중간주파수신호를 PLL에 의해 FM복조하여 출력하는 FM복조부(34)와, 상기 FM복조부(34)로부터 FM복조 출력된 신호로부터 비디오신호를 검파한후 비디오 신호를 처리하여 출력하는 비디오 처리부(35)와, 상기 FM복조부(34)로부터 FM복조 출력된 신호로부터 오디오 신호를 검파한후 오디오 처리하여 출력하는 오디오 처리부(36)와, 상기 동조된 채널신호를 약 20MHZ정도의 대역폭을 갖는 반송파신호인 중간주파수로 필터링하여 출력하는 중간주파필터(37)와, 디지탈 복조를 베이스 밴드신호로 변환하여 출력하는 베이스 밴드 변환부(38)와, 상기 베이스 밴드신호를 디지탈신호로 변환하고, QPSK 변조하여 출력하는 QPSK 복조부(39)와, 상기 QPSK복조부(24)로부터 QPSK복조된 신호를 압축된 비디오 신호를 신장시킬수 있도록 디코딩하여 출력하는 비디오 디코더(25)와, 상기 QPSK복조부(24)로부터 QPSK복조된 신호를 압축된 오디오 신호를 신장시킬 수 있도록 디코딩하여 출력하는 오디오 디코더(26)와, 상기 비디오 처리부(35)로부터 처리된 아나로그 비디오신호와 상기 비디오디코더(40)로부터 디코딩 처리된 디지탈 비디오신호를 스위칭 선택출력하는 제2스위칭부(42)와, 상기 오디오 처리부(36)로부터 처리된 아나로그 오디오신호와 상기 오디오디코더(41)로부터 디코딩 처리된 디지탈 오디오신호를 스위칭 선택출력하는 제3스위칭부(43)로 구성함을 특징으로 하는 아날로그 디지탈 겸용 위성방송 수신기.In the analog / digital satellite broadcasting combined receiver, a tuner 31 which outputs a carrier signal having a bandwidth of about 27 MHz by tuning a tuning channel of a broadcast signal from a satellite antenna and an LNB, and an analog output from the tuner 31. The first switching unit 32 for switching and selecting the satellite broadcast signal and the digital satellite broadcast signal, and the tuned channel signal switched and selected by the first switching unit 32 is filtered by a carrier signal having a bandwidth of about 27 MHz A first demodulator 33 for outputting, an FM demodulator 34 for FM demodulating and outputting the filtered intermediate frequency signal by a PLL, and a video from the FM demodulated output signal from the FM demodulator 34. After detecting the signal, the video processor 35 processes the video signal and outputs the audio signal from the FM demodulated output signal from the FM demodulator 34. An audio processor 36, an intermediate frequency filter 37 for filtering the tuned channel signal to an intermediate frequency that is a carrier signal having a bandwidth of about 20 MHz, and a base for converting and outputting digital demodulation to a base band signal A video signal obtained by compressing a QPSK demodulated signal from the QPSK demodulator 39 and a QPSK demodulator 39 for converting the baseband signal into a digital signal, QPSK modulated and outputting the same, A video decoder 25 for decoding and outputting the decoded signal, an audio decoder 26 for decoding and outputting the QPSK demodulated signal from the QPSK demodulator 24 so as to extend the compressed audio signal, and the video processor A second switching unit 42 for switching and outputting the analog video signal processed from (35) and the digital video signal decoded from the video decoder 40; The analog digital satellite broadcasting, comprising: a third switching unit 43 for switching and outputting the analog audio signal processed by the error processor 36 and the digital audio signal decoded by the audio decoder 41. receiving set. 제1항에 있어서, 상기 제2 스위칭부(42)와 상기 제3 스위칭부(43)는 연동으로 동작함을 특징으로 하는 아날로그 디지탈 겸용 위성방송 수신기.The analog digital satellite receiver as claimed in claim 1, wherein the second switching unit (42) and the third switching unit (43) operate in conjunction with each other. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930025978A 1993-11-30 1993-11-30 Analog / digital satellite broadcasting receiver KR950016386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930025978A KR950016386A (en) 1993-11-30 1993-11-30 Analog / digital satellite broadcasting receiver

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Application Number Priority Date Filing Date Title
KR1019930025978A KR950016386A (en) 1993-11-30 1993-11-30 Analog / digital satellite broadcasting receiver

Publications (1)

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KR950016386A true KR950016386A (en) 1995-06-17

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100232504B1 (en) * 1995-12-04 1999-12-01 마찌다 가쯔히꼬 Tuner being able to receive qpsk and fm signal from satellite broadcasting
KR100267238B1 (en) * 1997-10-31 2000-10-16 윤종용 Method and apparatus for analog type broadcasting receiving in digital type broadcasting receiver
KR100313890B1 (en) * 1998-05-15 2001-11-15 구자홍 TV set of watching Digital and Analog broadcasting signal
KR100313856B1 (en) * 1998-06-16 2001-12-17 윤종용 Apparatus for processing the audio signal on the dual digit al/analog broadcasting system
KR100398603B1 (en) * 2001-02-27 2003-09-19 (주)프리샛 코리아 Analog and Digital Audio broadcasting Composition Receiver
KR100433236B1 (en) * 1996-11-29 2004-09-18 엘지전자 주식회사 Complicated medium processing system, especially in relation to watching analog and digital catv broadcast programs, and performing data communication such as the internet through tv
KR100821021B1 (en) * 2000-07-19 2008-04-08 소니 가부시끼 가이샤 Television receiving apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100232504B1 (en) * 1995-12-04 1999-12-01 마찌다 가쯔히꼬 Tuner being able to receive qpsk and fm signal from satellite broadcasting
KR100433236B1 (en) * 1996-11-29 2004-09-18 엘지전자 주식회사 Complicated medium processing system, especially in relation to watching analog and digital catv broadcast programs, and performing data communication such as the internet through tv
KR100267238B1 (en) * 1997-10-31 2000-10-16 윤종용 Method and apparatus for analog type broadcasting receiving in digital type broadcasting receiver
KR100313890B1 (en) * 1998-05-15 2001-11-15 구자홍 TV set of watching Digital and Analog broadcasting signal
KR100313856B1 (en) * 1998-06-16 2001-12-17 윤종용 Apparatus for processing the audio signal on the dual digit al/analog broadcasting system
KR100821021B1 (en) * 2000-07-19 2008-04-08 소니 가부시끼 가이샤 Television receiving apparatus
KR100398603B1 (en) * 2001-02-27 2003-09-19 (주)프리샛 코리아 Analog and Digital Audio broadcasting Composition Receiver

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