KR970024950A - 3-channel (CH3) dedicated receiver for cable connectors - Google Patents

3-channel (CH3) dedicated receiver for cable connectors Download PDF

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Publication number
KR970024950A
KR970024950A KR1019950036837A KR19950036837A KR970024950A KR 970024950 A KR970024950 A KR 970024950A KR 1019950036837 A KR1019950036837 A KR 1019950036837A KR 19950036837 A KR19950036837 A KR 19950036837A KR 970024950 A KR970024950 A KR 970024950A
Authority
KR
South Korea
Prior art keywords
channel
frequency
channels
cable connector
cable
Prior art date
Application number
KR1019950036837A
Other languages
Korean (ko)
Other versions
KR0150697B1 (en
Inventor
박문수
최현종
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.)
Filing date
Publication date
Application filed by 구자홍, 엘지전자 주식회사 filed Critical 구자홍
Priority to KR1019950036837A priority Critical patent/KR0150697B1/en
Publication of KR970024950A publication Critical patent/KR970024950A/en
Application granted granted Critical
Publication of KR0150697B1 publication Critical patent/KR0150697B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6406—Filters characterised by a particular frequency characteristic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/148—Video amplifiers

Abstract

본 발명은 케이블 콘넥터 고주파출력중 3채널만을 전용으로 수신 가능하도록한 케이블 콘넥터용 3채널(CH3) 전용수신장치에 관한 것으로서, 그러나 종래 케이블 콘넥터용 채널수신장치는 케이블 티브이를 케이블 콘넥터에 고주파 케이블로 연결하여 사용할때 케이블 콘넥터의 고주파 출력이 채널 3 또는 채널 4로 국한되어 있으므로 튜너부(1)를 통해 방송채널을 선국해야하므로 튜너에 의한 가격이 상승되고 상기 튜너가 슈퍼헤테로 다인 방식으로 국부발진주파수 및 고주파주파수가 존재하여 간섭주파수가 될 가능성이 있고 여러채널중 채널 3 또는 채널 4만을 선국해야 하는 번거로운 문제점이 있었다.The present invention relates to a three-channel (CH3) dedicated receiver for a cable connector that allows only three channels of the high-frequency output of the cable connector to be dedicated. However, the conventional channel connector for a cable connector is a cable TV to a high-frequency cable. When connecting and using, the high-frequency output of the cable connector is limited to channel 3 or channel 4, so the broadcast channel must be tuned through the tuner unit 1, so that the price by the tuner increases and the tuner is a local oscillation frequency in a superheterodyne manner. And there is a possibility that the high frequency frequency exists to be an interference frequency, and there is a troublesome problem of only selecting channel 3 or channel 4 among several channels.

본 발명은 이와같은 종래 문제점을 해결하기 위하여 케이블 콘넥터 출력중 3채널에 맞는 주파수만을 필터링하는 SAW필터를 구비하여 튜너가 필요없이 3채널을 전용으로 수신할 수 있도록 한 것으로 케이블 콘넥터용 전용수신기에 채용한다.In order to solve the conventional problem, the present invention is provided with a SAW filter for filtering only frequencies corresponding to three channels of the cable connector output, so that only three channels can be exclusively received without using a tuner. do.

Description

케이블 콘넥트용 3채널(CH3) 전용수신장치3-channel (CH3) dedicated receiver for cable connectors

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

제4도는 본 고안 케이블 콘넥터용 3채널 전용수신장치 블럭도,Figure 4 is a block diagram of a three-channel dedicated receiver for the cable connector of the present invention,

제5도의 (가)는 본 고안 SAW필터부의 특성 그래프,5A is a characteristic graph of the SAW filter unit of the present invention,

(나)는 본 고안 고주파증폭부의 특성그래프(B) is characteristic graph of high frequency amplification part

Claims (1)

안테나(ANT)에 수신된 방송신호를 일정주파수 대역으로 증폭출력시키는 고주파증폭부(101)와, 고주파증폭부(101)에서 증폭출력된 신호를 입력받아 3채널의 픽쳐주파수인 특정주파수에 맞게 필터링하는 SAW필터부(102)와, 상기 SAW필터부(102)에서 필터링출력된 3채널의 픽쳐주파수를 중간주파수 처리하는 IF처리부(103)와, IF처리부(103)에서 중간주파수 처리된 신호중 영상신호를 처리하는 영상처리부(l04)와, 중간주파수 처리된 신호중 음성신호를 처리하는 음성처리부(105)로 구성된 케이블 콘넥터용 3채널(CH3) 전용수신장치.The high frequency amplifier 101 amplifies and outputs the broadcast signal received by the antenna ANT at a predetermined frequency band, and receives the signal amplified and output from the high frequency amplifier 101 to filter according to a specific frequency which is a picture frequency of three channels. The video signal of the SAW filter unit 102, the IF processor 103 for intermediate-processing the picture frequencies of the three channels filtered by the SAW filter unit 102, and the intermediate frequency processed signal from the IF processor 103. 3 channel (CH3) dedicated receiver for the cable connector consisting of an image processing unit (04) for processing a; and an audio processing unit (105) for processing the audio signal of the intermediate frequency processed signal.
KR1019950036837A 1995-10-24 1995-10-24 3-channel private receiving apparatus for cable connector KR0150697B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950036837A KR0150697B1 (en) 1995-10-24 1995-10-24 3-channel private receiving apparatus for cable connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950036837A KR0150697B1 (en) 1995-10-24 1995-10-24 3-channel private receiving apparatus for cable connector

Publications (2)

Publication Number Publication Date
KR970024950A true KR970024950A (en) 1997-05-30
KR0150697B1 KR0150697B1 (en) 1998-10-15

Family

ID=19431089

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950036837A KR0150697B1 (en) 1995-10-24 1995-10-24 3-channel private receiving apparatus for cable connector

Country Status (1)

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KR (1) KR0150697B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101415753B1 (en) * 2013-05-28 2014-07-08 (주) 기산텔레콤 Repeater and Repeating Method for Mobile Communication System

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Publication number Publication date
KR0150697B1 (en) 1998-10-15

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