KR850006832A - Radio wave management system for CATV - Google Patents

Radio wave management system for CATV Download PDF

Info

Publication number
KR850006832A
KR850006832A KR1019840001140A KR840001140A KR850006832A KR 850006832 A KR850006832 A KR 850006832A KR 1019840001140 A KR1019840001140 A KR 1019840001140A KR 840001140 A KR840001140 A KR 840001140A KR 850006832 A KR850006832 A KR 850006832A
Authority
KR
South Korea
Prior art keywords
catv
management system
receiver
signal
radio wave
Prior art date
Application number
KR1019840001140A
Other languages
Korean (ko)
Other versions
KR850001717B1 (en
Inventor
김종해
Original Assignee
김종해
한국 미디어 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 김종해, 한국 미디어 주식회사 filed Critical 김종해
Priority to KR1019840001140A priority Critical patent/KR850001717B1/en
Publication of KR850006832A publication Critical patent/KR850006832A/en
Application granted granted Critical
Publication of KR850001717B1 publication Critical patent/KR850001717B1/en

Links

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

Abstract

내용없음No content

Description

CATV용 전파 관리 시스템Radio wave management system for CATV

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

제2도는 본 발명에 의한 관리 시스템의 개략구성도.2 is a schematic configuration diagram of a management system according to the present invention.

제3도 a, b는 본 발명의 감지기와 제어장치의 회로도.3 is a circuit diagram of a detector and a control device of the present invention.

제4도는 제2도중 수신자측의 변환기 회로도.4 is a converter circuit diagram on the receiver side in FIG.

Claims (5)

CATV 전송 시스템에 있어서, 유선 송신국(C)측에 주파수 변환기(9), 감지기(10) 및 제어장치(11)를 설치하고, 수신기(D)측에 변환기(12)를 설치하여 제어장치(11)의 순차호출에 대한 다수의 변환기(12)에서의 순차상태 응답으로서 수신기(8)의 상태를관리하는 CATV용 전파관리시스템.In the CATV transmission system, a frequency converter 9, a detector 10, and a control device 11 are provided on the wired transmitting station C side, and a converter 12 is provided on the receiver D side to control the device ( A radio wave management system for CATV, which manages the state of the receiver 8 as a sequential state response in the plurality of transducers 12 to the sequential call of 11). 제1항에 있어서, 상기 감지기(10)가 트랜지스터(Q1)에 입력단자를 연결하고 트랜지스터(Q1) 및 트랜지스터(Q2)를 콜렉터폴로워 증폭기로서 구성시키고 트랜지스터(Q2)를 다이오드(D, D2) 및 콘덴서로 주파수신호를 전압 신호로 변화시키도록 구성된 것을 특징으로하는 CATV용 전파관리 시스템.The diode and the detector 10, the transistor connecting the input terminal to the (Q 1) and the transistor (Q 1) and a transistor (Q 2) the collector-follower configuration as an amplifier and a transistor (Q 2) according to claim 1 ( D, D 2 ) and a capacitor radio wave management system configured to change the frequency signal into a voltage signal. 제1항에 있어서, 상기 변환기(12)가 영상 신호를 TV채널 주파수대로 변환시키는 주파수 변환기(24)와, 지정 어드레스 호출 신호를 수신하는 명령 수신부(28), 상기 명령 수신부(28)의 출력신호에 의하여 구동되며 수신측의 상태 정보를 같이 송출하는 응답송신기(29)로 송신국측에서의 전송신호를 텔레비젼 신호로 변환하며, 수신기(8)의 상태정보를 호출에 응답하여 전송하는 것을 특징으로하는 CATV용 전파관리 시스템.A frequency converter (24) for converting a video signal into a TV channel frequency, a command receiver (28) for receiving a designated address call signal, and an output signal of the command receiver (28). CATV, characterized by converting the transmission signal at the transmitting station side into a television signal and transmitting the status information of the receiver 8 in response to a call by a response transmitter 29 which transmits the status information of the receiving side together. Radio management system. 제2항에 있어서, 상기 제어장치(11)가 지정어드레스를 호출장치(13), 지정어드레스 호출을 순차적으로 제어하는 시간구동 제어회로(14), 응답 정보를 해독하는 해독기(15), 기억장치(16) 인쇄기(17) 및 경보기(18)로서 구성된 것을 특징으로하는 CATV 전파관리 시스템.3. The control apparatus (11) according to claim 2, wherein the control device (11) calls a designated address (13), a time drive control circuit (14) for sequentially controlling a designated address call, a decoder (15) for decoding response information, and a storage device. (16) A CATV radio wave management system, characterized by comprising a printer (17) and an alarm (18). 제3항에 있어서, 유선송신국(C)측에 정보 변환용 변환기(9)를 설치하고 수신기(D)측에 정보 변환용 변환기(12)를 설치하여 도청방지가 되도록 한 것을 특징으로하는 CATV용 전파관리 시스템.The CATV according to claim 3, wherein an information conversion converter (9) is provided on the wired transmitting station (C) side and an information conversion converter (12) is installed on the receiver (D) side to prevent eavesdropping. Radio management system. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019840001140A 1984-03-07 1984-03-07 Cable television system KR850001717B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019840001140A KR850001717B1 (en) 1984-03-07 1984-03-07 Cable television system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019840001140A KR850001717B1 (en) 1984-03-07 1984-03-07 Cable television system

Publications (2)

Publication Number Publication Date
KR850006832A true KR850006832A (en) 1985-10-16
KR850001717B1 KR850001717B1 (en) 1985-11-26

Family

ID=19233099

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019840001140A KR850001717B1 (en) 1984-03-07 1984-03-07 Cable television system

Country Status (1)

Country Link
KR (1) KR850001717B1 (en)

Also Published As

Publication number Publication date
KR850001717B1 (en) 1985-11-26

Similar Documents

Publication Publication Date Title
US4509211A (en) Infrared extension system
KR880001154A (en) Remote control system
KR880005811A (en) Tv transmission system
DE69829785D1 (en) Signalisierungssytem
MY110481A (en) System for wireless transmitting and receiving a video
KR840001027A (en) Recorder remote control device for cordless phone
KR880002381A (en) Video signal switching device
IT1261466B (en) PROCEDURE AND CIRCUIT FOR SELECTIVE TUNING OF APPARATUS.
KR890003223A (en) How to set service mode of electronic equipment
KR890006053A (en) Video communication devices
KR850006832A (en) Radio wave management system for CATV
KR910017896A (en) Communication system for color television signal
JPS57190473A (en) Switching unit for high frequency video signal
KR970029474A (en) Video cassette recorder with cable TV converter control
KR850006831A (en) Mutual Transmission Control System for CATV
ES431289A1 (en) Switchable video amplifier
KR940005150A (en) TV Power and Channel Conversion Circuit and Method in VCR Playback Operation
KR980004562A (en) Method for controlling a wired broadcasting converter in a video cassette recorder
KR910013963A (en) Telephone Remote Control Unit
KR970019604A (en) Information screen recorder of information TV
KR970009289A (en) PIP sharing device with external tuner built-in device of television
KR960033116A (en) Closed Circuit TV (CCTV) System
JPS5721180A (en) Multi-purpose information processor
KR960020299A (en) Remote control system using telephone
KR920008733A (en) VCR reserved recording device

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
O035 Opposition [patent]: request for opposition
E701 Decision to grant or registration of patent right
O073 Decision to grant registration after opposition [patent]: decision to grant registration
GRNT Written decision to grant
J2X1 Appeal (before the patent court)

Free format text: INVALIDATION

Free format text: TRIAL NUMBER: 1988200000088; INVALIDATION

J2X1 Appeal (before the patent court)

Free format text: INVALIDATION

Free format text: TRIAL NUMBER: 1988200000093; INVALIDATION

Free format text: TRIAL NUMBER: 1988200000094; INVALIDATION

FPAY Annual fee payment

Payment date: 20021121

Year of fee payment: 18

LAPS Lapse due to unpaid annual fee