KR970024640A - Automatic Switching and Playback of Voice Signal Receiving Band of Satellite Broadcasting Receiver - Google Patents

Automatic Switching and Playback of Voice Signal Receiving Band of Satellite Broadcasting Receiver Download PDF

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Publication number
KR970024640A
KR970024640A KR1019950036835A KR19950036835A KR970024640A KR 970024640 A KR970024640 A KR 970024640A KR 1019950036835 A KR1019950036835 A KR 1019950036835A KR 19950036835 A KR19950036835 A KR 19950036835A KR 970024640 A KR970024640 A KR 970024640A
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KR
South Korea
Prior art keywords
voice signal
band
satellite broadcasting
signal
microcomputer
Prior art date
Application number
KR1019950036835A
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Korean (ko)
Inventor
이지운
Original Assignee
구자홍
엘지전자 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 구자홍, 엘지전자 주식회사 filed Critical 구자홍
Priority to KR1019950036835A priority Critical patent/KR970024640A/en
Publication of KR970024640A publication Critical patent/KR970024640A/en

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Abstract

본 발명은 위성방송 수신기의 음성신호 수신대역 자동절환 및 재생장치에 관한 것으로서, 특히 음성신호의 사용주파수 대역 및 프리엠퍼시스(Pre-Emphasis)가 서로 다른 두개의 위성으로부터 전송되는 음성신흐를 각 위성의 음성신호에 적합한 주파수 대역 및 디엠퍼시스(De-Emphasis)를 선택하여 양질의 음성신호를 수신할 수 있도록 한 음성신호 수신대역 자동절환 및 재생장치에 관한 것이다.The present invention relates to an automatic switching and reproducing apparatus for a voice signal receiving band of a satellite broadcasting receiver. In particular, a voice signal transmitted from two satellites having different frequency bands and pre-emphasis used for each voice signal is provided. The present invention relates to a voice signal receiving band automatic switching and reproducing apparatus for selecting a frequency band and de-emphasis suitable for a voice signal of a voice signal.

종래의 위성방송 수신기는 하나의 위성방송을 수신할 수 있도록 설계되어 있기 때문에 또 다른 방송방식의 위성방송을 수신하고자 할 경우 완전한 음성신호를 재생하지 못하는 문제점이 있다.Since the conventional satellite broadcasting receiver is designed to receive one satellite broadcasting, there is a problem in that it cannot reproduce a complete voice signal when trying to receive another satellite broadcasting.

따라서, 상기 문제점을 해결하기 위한 본 발명은 음성신호의 사용주파수 대역 및 프리엠퍼시스가 서로 다른 두개의 위성으로부터 전송되는 음성신호를 각 위성의 음성신호에 적합한 주파수 대역 및 디앰퍼시스를 선택하여 양질의 음성신호를 수신할 수 있도록 한 음성신호 수신대역 자동절환 및 재생장치이다.Accordingly, the present invention for solving the above problems is to select a frequency band and de-emphasis suitable for the voice signal of each satellite for the voice signal transmitted from two satellites having different frequency bands and pre-emphasis of the voice signal. An apparatus for automatically switching and reproducing a voice signal receiving band for receiving a voice signal.

Description

위성방송 수신기의 음성신호 수신대역 자동 절환 및 재생장치Automatic Switching and Playback of Voice Signal Receiving Band of Satellite Broadcasting Receiver

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

제2도는 본 발명의 음성신호 수신대역 자동 절환 및 재생 장치가 적용된 위성방송 수신기를 보인 회로도.2 is a circuit diagram showing a satellite broadcasting receiver to which a voice signal receiving band automatic switching and reproducing apparatus of the present invention is applied.

Claims (2)

위성방송을 수신하는 위성방송 수신기에 있어서, 검파된 음성신호의 반송파 주파수 대역만을 통과시키는 광대역폭을 가진 제1대역필터(14)와, 수신된 음성신호의 대역폭에 적합한 대역 필터링 및 디엠퍼시스 동작이 이루어지도록 하기위한 일정 제어신호를 출력하는 마이컴(15)과, 상기 마이컴(l5)에서 출력된 제어신호에 따라 제2 대역필터(17)를 온/오프 제어하는 구동제어부(16)와, 상기 구동제어부(16)의 제어에 따라 온동작하여 입력되는 반송파신호를 협대역에 대해 필터링하는 제2대역필터(17)와, 상기 제1대역필터(14) 또는 제2대역필터(17)를 통과한 반송파 신호를 원래의 음성신호로 복조하는 복조부(18)와, 각기 다른 RC 시정수로 상기 복조부(18)에서 복조된 음성신호를 디엠퍼시스시켜 원래의 음으로 븍귀시키는 제1 디앰퍼시스(19) 및 제2 디앰퍼시스[20)와, 상기 마이컴(15)의 제어신호에 따라 상기 제1, 제2 디엠퍼시스(19)(20)에서 출력되는 음성신호중 하나를 선택출력하는 스위치(21)로 구성된 것을 특징으로 하는 위성방송 수신기의 음성신호 수신대역 자동절환 및 재생 장치.A satellite broadcasting receiver for receiving satellite broadcasting, comprising: a first band filter (14) having a wide bandwidth for passing only a carrier frequency band of a detected voice signal, and band filtering and deemphasis operation suitable for the bandwidth of the received voice signal. A microcomputer 15 for outputting a predetermined control signal to make a switch, a driving control unit 16 for controlling on / off of the second band filter 17 according to the control signal output from the microcomputer l5, and the driving Under the control of the controller 16, the second band filter 17 for filtering the carrier signal inputted in a narrow band, and passed through the first band filter 14 or the second band filter 17 A demodulator 18 for demodulating a carrier signal into an original speech signal, and a first de-emphasis 19 for de-emphasizing the demodulated speech signal at the demodulator 18 with different RC time constants and returning it to the original sound. ) And second de-emphasis [20) And a switch 21 for selectively outputting one of audio signals output from the first and second de-emphasis 19 and 20 according to the control signal of the microcomputer 15. Audio signal reception band automatic switching and playback device. 제1항에 있어서, 상기 구동제어부(16)는 상기 마이컴(l5)에서 출력되는 제어신호에 따라 온/오프 동작하여 제1 대역필터(14)에서 출력된 반송파신호를 복조부(18)로 공급 또는 차단하는 다이오드(D11)와, 상기 마이컴(15)에서 출력되는 제어신호에 따라 충방전하는 콤덴서(C13)와, 상기 콘덴서(C13)의 충방전 동작에 따라 온/오프동작하여 제2 대역필터(17)를 온/오프 제어하는 트랜지스터(Ql1)로 구성된 것을 특징으로하는 위성방송 수신기의 음성신호 수신대역 자동절환 및 재생장치.The driving control unit 16 operates on / off according to a control signal output from the microcomputer 15 and supplies a carrier signal output from the first band filter 14 to the demodulator 18. Or a second band which is turned on / off according to the charge / discharge operation of the diode D11 to cut off, the capacitor C13 to charge and discharge according to the control signal output from the microcomputer 15, and the capacitor C13. An automatic signal receiving band automatic switching and reproducing apparatus for a satellite broadcasting receiver, comprising: a transistor (Ql1) for controlling the filter (17) on / off. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950036835A 1995-10-24 1995-10-24 Automatic Switching and Playback of Voice Signal Receiving Band of Satellite Broadcasting Receiver KR970024640A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950036835A KR970024640A (en) 1995-10-24 1995-10-24 Automatic Switching and Playback of Voice Signal Receiving Band of Satellite Broadcasting Receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950036835A KR970024640A (en) 1995-10-24 1995-10-24 Automatic Switching and Playback of Voice Signal Receiving Band of Satellite Broadcasting Receiver

Publications (1)

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KR970024640A true KR970024640A (en) 1997-05-30

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KR1019950036835A KR970024640A (en) 1995-10-24 1995-10-24 Automatic Switching and Playback of Voice Signal Receiving Band of Satellite Broadcasting Receiver

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