KR970032085A - CATV terminal capable of receiving text broadcasting in subscriber band - Google Patents

CATV terminal capable of receiving text broadcasting in subscriber band Download PDF

Info

Publication number
KR970032085A
KR970032085A KR1019950042894A KR19950042894A KR970032085A KR 970032085 A KR970032085 A KR 970032085A KR 1019950042894 A KR1019950042894 A KR 1019950042894A KR 19950042894 A KR19950042894 A KR 19950042894A KR 970032085 A KR970032085 A KR 970032085A
Authority
KR
South Korea
Prior art keywords
network
signal
tuner
text broadcasting
channel
Prior art date
Application number
KR1019950042894A
Other languages
Korean (ko)
Other versions
KR0185851B1 (en
Inventor
안성진
Original Assignee
배순훈
대우전자 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 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950042894A priority Critical patent/KR0185851B1/en
Publication of KR970032085A publication Critical patent/KR970032085A/en
Application granted granted Critical
Publication of KR0185851B1 publication Critical patent/KR0185851B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H04H20/77—Wired systems using carrier waves
    • H04H20/78—CATV [Community Antenna Television] systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • H03K19/1733—Controllable logic circuits
    • H03K19/1737—Controllable logic circuits using multiplexers
    • 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
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/44504—Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
    • 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
    • H04N5/455—Demodulation-circuits
    • 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
    • H04N5/50—Tuning indicators; Automatic tuning control

Abstract

본 발명은 네트워크와 연결되어 데이타 송수신을 담당하는 네트워크 인터페이스 유니트(NIU:100)와, MPEG-2신호를 NTSC신호로 변환하여 TV로 송출하는 셋톱유니트(STU:200)로 구성된 대화형 CATV시스템의 가입자 단말기에 있어서, 상기 네트웍 인터페이스유니트가 상기 네트웍으로부터 입력된 RF 신호에서 소정의 채널을 선택할 수 있도록 된 튜너(104); 상기 튜너에 의해 선택된 아날로그 채널의 영상신호를 복조하여 오디오신호와 베이스밴드 비디오신호를 출력하는 아날로그 복조 및 BTSC엔코더(107); 상기 튜너에 의해 선택된 문자방송을 수신하기 위한 문자방송 수신기(108); 및 상기 BTSC엔코더의 베이스밴드 비디오나 상기 문자방송 수신기의 출력을 입력받아 가입자 서비스 대기중에는 상기 문자방송 수신기의 출력을 선택하여 출력하는 멀티플랙서(109)가 구비되어 네트웍으로부터 소정의 RF신호를 입력받아 복조하여 아날로그 채널 및 디지탈 채널을 통해 비디오 서비스를 제공받을 수 있으며, 맨머신인터페이스수단에 의해 사용자가 선택한 정보가 디지탈 모뎀을 통해 상기 네트웍측으로 전달된다.The present invention relates to an interactive CATV system comprising a network interface unit (NIU: 100) connected to a network for data transmission and reception, and a set top unit (STU: 200) for converting MPEG-2 signals into NTSC signals and transmitting them to a TV. A subscriber station, comprising: a tuner (104) configured to allow the network interface unit to select a predetermined channel from an RF signal input from the network; An analog demodulation and BTSC encoder 107 for demodulating the video signal of the analog channel selected by the tuner and outputting an audio signal and a baseband video signal; A text broadcasting receiver 108 for receiving a text broadcasting selected by the tuner; And a multiplexer 109 for receiving the baseband video of the BTSC encoder or the output of the text broadcasting receiver and selecting and outputting the output of the text broadcasting receiver while waiting for subscriber service to input a predetermined RF signal from a network. Receives and demodulates the video service through the analog channel and the digital channel, and the information selected by the user by the man machine interface means is transmitted to the network side through the digital modem.

Description

가입자대역에서 문자방송수신이 가능한 CATV 단말기CATV terminal capable of receiving text broadcasting in subscriber band

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

제 2 도는 본 발명이 적용되는 CATV 가입자 단말기의 전체 블럭도.2 is an overall block diagram of a CATV subscriber station to which the present invention is applied.

제 3 도는 본 발명에 따라 문자방송을 수신하기 위한 네트워크 인터페이스부의 블럭도이다.3 is a block diagram of a network interface unit for receiving a text broadcast according to the present invention.

Claims (1)

네트워크와 연결되어 데이타 송수신을 담당하는 네트워크 인터페이스 유니트(NU:100)와, MPEG-2신호를 NTSC신호로 변환하여 TV로 송출하는 셋톱유니트(STU:200)로 구성되어 네트웍으로부터 소정의 RF신호를 입력받아 복조하여 아날로그 채널 및 디지탈 채널을 통해 비디오 서비스를 제공받을 수 있으며, 맨머신인터페이스수단에 의해 사용자가 선택한 정보가 디지탈 모뎀을 통해 상기 네트웍측으로 전달되도록 된 대화형 CATV시스템의 가입자 단말기에 있어서, 상기 네트웍 인터페이스 유니트(100)가 상기 네트웍으로부터 입력된 RF 신호에서 소정의 채널을 선택할 수 있도록 된 튜너(104); 상기 튜너에 의해 선택된 아날로그 채널의 영상신호를 복조하여 오디오신호와 베이스밴드비디오신호를 출력하는 아날로그 복조 및 BTSC엔코더(107); 상기 튜너에 의해 선택된 문자방송을 수신하기 위한 문자방송수신기(108); 및 상기 BTSC엔코더의 베이스밴드 비디오나 상기 문자방송 수신기의 출력을 입력받아 가입자 서비스 대기중에는 상기 문자방송 수신기의 출력을 선택하여 출력하는 멀디플랙서(109)가 구비된 것을 특징으로 하는 가입자대역에서 문자방송수신이 가능한 CATV 단말기.It is composed of network interface unit (NU: 100) which is connected to the network and takes care of data transmission, and set-top unit (STU: 200) which converts MPEG-2 signal into NTSC signal and sends it to TV. In the subscriber terminal of the interactive CATV system can receive the video demodulation through the analog channel and the digital channel, the user selected by the man machine interface means is transmitted to the network side through the digital modem, A tuner 104 which allows the network interface unit 100 to select a predetermined channel from an RF signal input from the network; An analog demodulation and BTSC encoder 107 for demodulating the video signal of the analog channel selected by the tuner and outputting an audio signal and a baseband video signal; A text broadcast receiver 108 for receiving a text broadcast selected by the tuner; And a multiplexer 109 for receiving the baseband video of the BTSC encoder or the output of the text broadcasting receiver and selecting and outputting the output of the text broadcasting receiver while waiting for subscriber service. CATV terminal capable of receiving broadcasts. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950042894A 1995-11-22 1995-11-22 Catv terminal capable of receiving a text broadcasting in a subscriber band KR0185851B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950042894A KR0185851B1 (en) 1995-11-22 1995-11-22 Catv terminal capable of receiving a text broadcasting in a subscriber band

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950042894A KR0185851B1 (en) 1995-11-22 1995-11-22 Catv terminal capable of receiving a text broadcasting in a subscriber band

Publications (2)

Publication Number Publication Date
KR970032085A true KR970032085A (en) 1997-06-26
KR0185851B1 KR0185851B1 (en) 1999-05-01

Family

ID=19435181

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950042894A KR0185851B1 (en) 1995-11-22 1995-11-22 Catv terminal capable of receiving a text broadcasting in a subscriber band

Country Status (1)

Country Link
KR (1) KR0185851B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3785579B2 (en) * 1995-11-22 2006-06-14 サムソン インフォメーション システムズ アメリカ Home multimedia network architecture
KR100344793B1 (en) * 1999-10-21 2002-07-19 엘지전자주식회사 Apparatus for generating local digital TV for test

Also Published As

Publication number Publication date
KR0185851B1 (en) 1999-05-01

Similar Documents

Publication Publication Date Title
KR100466237B1 (en) Method and system for converting protocol of digital broadcasting system
KR19980060006U (en) CATV with Analog and Digital Broadcasting
HK1005634A1 (en) Selection of compressed television signals from single channel allocation based on viewer characteristics
GB0016245D0 (en) A receiver
TW367694B (en) An apparatus for the integration of television signals and information from an information service provider
US5430492A (en) Method of transmitting digital HDTV signals
KR970009349A (en) Apparatus for integrating digital audio and analog video broadcasting on the user (receiver) side
MY132685A (en) Transmission and reception of television programs and additional data service
EP0652677A2 (en) Terrestrial television broadcast system converter
JPH08242436A (en) Two-way television reception system
US7027106B2 (en) Digital/analog broadcast receiver receiving digital/analog broadcast in range of read carrier frequency
KR970032085A (en) CATV terminal capable of receiving text broadcasting in subscriber band
JP2004336518A (en) Digital broadcasting reception device
JPH11284963A (en) Information supply method on broadcasting wave and reception device receiving broadcasting wave
KR100286259B1 (en) Hybrid digital broadcast receiver
KR970057762A (en) Multifunctional Digital Receiver
KR100258957B1 (en) Set topbox operation method for using wire and wireless net work in common
KR980007710A (en) Satellite broadcasting receiver using analog cable (CATV) transmission network
KR980007709A (en) Satellite broadcasting receiver using digital cable (CATV) transmission network
KR20000021599A (en) Broadcasting satellite receiver having function for simultaneously listening to multi-language
JP2003163852A (en) Digital broadcast reception system
JPH04298186A (en) Subscriber broadcast signal transmission system
KR20000028464A (en) System for distributing satellite broadcasts for households use
JPH09307826A (en) Small screen generator and program information transmission system
KR19990070246A (en) Broadcast receiver on cable TV subscriber

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20011128

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee