KR970057066A - Crosstalk prevention device and method of BAND - Google Patents

Crosstalk prevention device and method of BAND Download PDF

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Publication number
KR970057066A
KR970057066A KR1019950058521A KR19950058521A KR970057066A KR 970057066 A KR970057066 A KR 970057066A KR 1019950058521 A KR1019950058521 A KR 1019950058521A KR 19950058521 A KR19950058521 A KR 19950058521A KR 970057066 A KR970057066 A KR 970057066A
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KR
South Korea
Prior art keywords
vhf
band
signal
unit
uhf
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KR1019950058521A
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Korean (ko)
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박선준
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배순훈
대우전자 주식회사
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Priority to KR1019950058521A priority Critical patent/KR970057066A/en
Publication of KR970057066A publication Critical patent/KR970057066A/en

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Abstract

본 발명은 티브이(TV)시스템에 있어서, 튜너부에 일정 알에프(RF)에서의 일정 밴드(VHF―L,VHF―H,UHF)신호가 모두 입력되면서 이를 선국하도록 상기 튜너부가 선국동작을 하게 되지만, 만약 사용자가 어느 특정한 일정밴드만을 시청하고자 할 경우에는 사용되지 않는 일정 밴드(VHF―L,VHF―H,UHF)신호들간에 혼선이 발생되므로서, TV를 시청하는 사용자에게 보다 선명한 화면을 제공시키지 못하는 문제점이 있었다.According to the present invention, in the TV system, the tuner is tuned to tune to the tuner unit while all the predetermined band (VHF-L, VHF-H, UHF) signals are input to the tuner unit. If the user wants to watch only certain specific bands, crosstalk occurs between unused constant band (VHF-L, VHF-H, UHF) signals, thus providing a clearer screen to the user watching TV. There was a problem that can not be.

따라서, 본 발명은 상기와 같은 문제점을 해결하기 위해 일정신호를 선국시에 사용하지 않는 일정밴드의 신호를 플터링시킬 수 있도록 밴드 필터를 구성시키므로서, 사용하지 않는 밴드간에 발생하는 혼선을 방지하여 보다 선명한 방송을 시청할 수 있도록 하므로서, 사용자에게 다양한 생활편의를 제공시키고자 하는 밴드(BAND)의 혼선(Crosstalk)방지 장치 및 방법이다.Therefore, in order to solve the problems described above, the present invention configures a band filter so as to flutter a signal of a certain band that is not used when tuning a certain signal, thereby preventing crosstalk between unused bands. A device and a method for preventing crosstalk of a band, which is intended to provide a user with various conveniences, while allowing a user to watch a clearer broadcast.

Description

밴드(BAND)의 혼선(Corsstalk)방지 장치 및 방법BAND Corsstalk prevention device and method

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

제2도는 본 발명 TV시스템에서 밴드의 혼선 방지 장치의 구조를 보인 블럭 회로도.2 is a block circuit diagram showing the structure of the band crosstalk prevention apparatus in the TV system of the present invention.

제3도는 본 발명 TV시스테메서 밴드의 혼선 방지 방법을 보인 플로우 챠트.3 is a flow chart showing a method of preventing crosstalk of the TV system message band of the present invention.

Claims (2)

시스템의 각부를 제어하는 마이컴(1)과, 상기 마이컴(1)의 제어에 따라 입력되는 일정알에프(RF)에서의 일정 밴드(VHF―L,VHF―H,UHF)신호를 선국하여 출력시키는 튜너부(2)와, 상기 튜너부(2)에서 선국되어 출력되는 일정알에프(RF)에서의 일정 밴드(VHF―L,VHF―H,UHF)신호를 중간 주파수 처리시키는 중간 주파수 처리부A tuner that tunes and outputs a predetermined band (VHF-L, VHF-H, UHF) signal from a constant RF (RF) input under control of the microcomputer (1) for controlling each part of the system. Intermediate frequency processing unit for performing intermediate frequency processing of the predetermined band (VHF-L, VHF-H, UHF) signals in the constant RF signal outputted by the tuner unit 2 and the tuner unit 2. (3)와, 상기 중간 주파수 처리부(3)에 의해 중간 주파수 처리되어 출력된 일정알에프(RF)에서의 일정 밴드(VHF―L,VHF―H,UHF)신호를 영상 및 음성신호로 분리하여 출력시키는 영상/음성 분리부(4)와, 상기 영상/ 음성 분리부(4)에 의해 분리되어 출력된 음성신호를 스피커(6)에 출력시키도록 음성 처리하는 음성처리부(5)와, 상기 음성처리부(5)에 의해 음성 처리된 음성신호를 외부로 출력시키는 스피커(6)와, 영상/음성 분리부(4)에 의해 분리되어 출력된 영상신호를 씨피티(CPT)(8)에 출력시키도록 영상 처리하는 영상 처리부(7)와, 상기 영상 처리부(7)에 의해 영상 처리된 영상신호를 화면에 디스플레이시키는 CPT(8)로 구성된 종래 TV 시스템에서의 밴드 장치에 있어서, 상기 튜너부(2)에 입력되는 일정 알에프(RF)에서의 일정 밴드(VHF―L,VHF―H,UHF)신호중에서 원하지 않는 일정밴드를 선별적으로 제거하도록 필터링 동작하는 밴드 필터부(9)와, 마이컴(1)의 제어에 따라 상기 밴드 필터링부(9)의 필터링 동작을 제어하도록 스위칭 동작하는 스위칭부(10)로 구성된 것을 특징으로 하는 밴드(BAND)의 혼선(Crosstalk)방지 장치.(3) and outputting a predetermined band (VHF-L, VHF-H, UHF) signal in constant RF (RF) output by being subjected to intermediate frequency processing by the intermediate frequency processing section 3 into video and audio signals. An audio / video separation unit 4, an audio processing unit 5 for audio processing to output the audio signal separated and output by the video / audio separation unit 4 to the speaker 6, and the audio processing unit To output to the CPT 8 the speaker 6 for outputting the audio signal processed by the audio signal to the outside and the video signal separated and output by the video / audio separation unit 4; In a band device in a conventional TV system, comprising a video processing unit (7) for processing an image and a CPT (8) for displaying a video signal processed by the video processing unit (7) on a screen, the tuner unit (2) Undesired among the constant band (VHF-L, VHF-H, UHF) signals in the constant RF (RF) input to the Is a band filter unit 9 for filtering to selectively remove a predetermined band, and a switching unit 10 for switching to control the filtering operation of the band filtering unit 9 under the control of the microcomputer 1. Crosstalk prevention device of the band (BAND), characterized in that configured. 전원의 인가에 따라 일정 알에프(RF)에서의 일정 밴드(VHF―L)신호인가를 판단하는 제1과정과, 상기 판단결과 일정 밴드(VHF―L)신호이면, 다른 밴드(VHF―H,UHF)신호를 필터링하여 그라운드(Ground)시키면서 밴드간의 간섭을 방지시키고, 상기 일정 밴드(VHF―L)신호를 튜너부(2)에 입력시키는 제2과정과, 상기 제1과정의 판단결과 일정 밴드(VHF―H)신호인가를 판단하는 제3과정과, 상기 판단결과 일정 밴드(VHF―H)신호이면, 다른 밴드(VHF―L,UHF)신호를 필터링하여 그라운드(Ground)시키면서 밴드간의 간섭을 방지시키고, 상기 일정 밴드(VHF―H)신호를 튜너부(2)에 입력시키는 제4과정과, 상기 제3과정의 판단결과 일정 밴드(UHF)신호이면, 다른 밴드(VHF―L,VHF―H)신호를 필터링하여 그라운드(Ground)시키면서 밴드간의 간섭을 방지시키고, 상기 일정 밴드(UHF)신호를 튜너부(2)에 입력시키는 제5과정으로 구성된 것을 특징으로 하는 밴드(BAND)의 혼선(Crosstalk)방지 방법.A first process of determining whether a predetermined band VHF-L signal is applied to the constant RF according to the application of the power; and if the predetermined band VHF-L signal is determined as the result of the determination, another band VHF-H, UHF A second process of filtering the signal to prevent ground interference and grounding the signal, and inputting the predetermined band (VHF-L) signal to the tuner unit 2; and as a result of the determination of the first process, a predetermined band ( A third step of determining whether the VHF-H signal is applied; and if the predetermined band (VHF-H) signal is determined, filtering other bands (VHF-L, UHF) signals to ground to prevent interference between the bands. And the other band (VHF-L, VHF-H) if the fourth step of inputting the constant band (VHF-H) signal to the tuner unit 2 and the determination result of the third step are the constant band (UHF) signal. Signal to ground and prevent interference between bands, and the tuner unit 2 transmits the predetermined band (UHF) signal Crosstalk (Crosstalk) methods of prevention band (BAND), characterized in that consists of the process of the fifth input. ※참고사항:최초출원 내용에 의하여 공개하는 것임.※ Note: This is to be disclosed based on the first application.
KR1019950058521A 1995-12-27 1995-12-27 Crosstalk prevention device and method of BAND KR970057066A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950058521A KR970057066A (en) 1995-12-27 1995-12-27 Crosstalk prevention device and method of BAND

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950058521A KR970057066A (en) 1995-12-27 1995-12-27 Crosstalk prevention device and method of BAND

Publications (1)

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KR970057066A true KR970057066A (en) 1997-07-31

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KR1019950058521A KR970057066A (en) 1995-12-27 1995-12-27 Crosstalk prevention device and method of BAND

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