KR960016554A - Interactive data communication system of cable broadcasting network - Google Patents

Interactive data communication system of cable broadcasting network Download PDF

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Publication number
KR960016554A
KR960016554A KR1019940025358A KR19940025358A KR960016554A KR 960016554 A KR960016554 A KR 960016554A KR 1019940025358 A KR1019940025358 A KR 1019940025358A KR 19940025358 A KR19940025358 A KR 19940025358A KR 960016554 A KR960016554 A KR 960016554A
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KR
South Korea
Prior art keywords
data communication
transmitter
central processing
frequency
station
Prior art date
Application number
KR1019940025358A
Other languages
Korean (ko)
Other versions
KR0135478B1 (en
Inventor
이현곤
Original Assignee
박종명
신한정밀 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 박종명, 신한정밀 주식회사 filed Critical 박종명
Priority to KR1019940025358A priority Critical patent/KR0135478B1/en
Publication of KR960016554A publication Critical patent/KR960016554A/en
Priority to US08/962,179 priority patent/US6005937A/en
Application granted granted Critical
Publication of KR0135478B1 publication Critical patent/KR0135478B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/46—Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H03H7/463—Duplexers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/12—Arrangements for observation, testing or troubleshooting
    • 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

Abstract

본 발명은 유선TV방송망의 쌍방향 데이타 통신 시스템에 관한 것으로서, 종래의 유선 TV방송망에서 쌍방향 데이타 통신 스스템에서, 초단위 방송 광고 시청률 조사가 불가능한 단점과, 방송국의 가입자 관리 컴퓨터 (호스트 컴퓨터)와 가입자 단말기 사이에 데이타를 송수신하는 선로에 외부의 신호 침입과 간섭이 발생하면, 데이타 송수신이 불가능하게 되어 데이타 통신망이 마비되는 문제점을 해결한 것이다.The present invention relates to a two-way data communication system of a wired TV broadcasting network, and in the conventional two-way data communication system in a wired TV broadcasting network, it is impossible to investigate the viewer rating of a second broadcast advertisement, and a subscriber management computer (host computer) and a subscriber terminal of a broadcasting station When an external signal intrusion and interference occurs on a line for transmitting and receiving data between them, data transmission and reception are impossible and the data communication network is paralyzed.

본 발명은 가입자 단말기내의 수신기 수신 주파수나 송신기 송신 주파수를 변경하는 지시 신호를 방송국에서 송출하는 영상신호의 인밴드내에 실어 가입자 단말기의 중앙처리장치에 전송하고, 중앙처리장치를 통해 수신기의 수신 주파수와 송신기의 송신 주파수를 변경할 때 PLL 회로를 수신기용과 송신기용 별도로 구성하여 통제하거나 또는 겸용으로 구성하여 통제함으로써 쌍방향 통신망 운용에 편리와 능률을 기하고, 외부 신호의 침입이나 상호 간섭에 의해 방송국과 가입자 사이의 통신 장애에 능동적이고 효과적으로 대처할 수 있도록 하며, 또한 본 발명은 가입자 단말기의 중앙처리장치에 기억수단을 연결하여 중앙처리장치가 송신할 데이타를 방송국의 호수트 컴퓨터가 지정하는 시간과 방법으로 저장시켜 놓고 대기하다가 방송국의 호스트 컴퓨터가 요구할 때 이 저장된 데이타를 방송국측으로 송신하도록 함으로써 초단위의 광고 채널에 대한 시청률 조사를 즉시 시행할 수 있도록 한 유선방송망의 쌍방향 데이타 통신 시스템을 제공한다.According to the present invention, an indication signal for changing a receiver reception frequency or a transmitter transmission frequency in a subscriber station is loaded in an in-band of a video signal transmitted from a broadcasting station, and transmitted to a central processing unit of the subscriber station. When changing the transmitter frequency, the PLL circuit can be configured or controlled separately for the receiver and the transmitter, or can be controlled separately for convenient and efficient operation of the two-way communication network and between the broadcasting station and the subscriber due to intrusion or mutual interference of external signals. In addition, the present invention connects the storage means to the central processing unit of the subscriber station and stores the data to be transmitted by the central processing unit at the time and method specified by the broadcast computer. Wait for the host of the station It provides a two-way data communication system of a wired broadcasting network that allows a computer to transmit the stored data to a broadcasting station when required, so that an audience rating survey of an advertising channel in seconds can be performed immediately.

Description

유선방송망의 쌍방향 데이타 통신 시스템Interactive data communication system of cable broadcasting network

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

제1도는 본 발명의 유선방송망의 쌍방향 데이타 통신 시스템의 제1실시에 블록도,1 is a block diagram of a first embodiment of a two-way data communication system of a wired broadcasting network according to the present invention;

제2도는 본 발명의 유선방송망의 쌍방향 데이타 통신 시스템의 제2실시예 블록도.2 is a block diagram of a second embodiment of a two-way data communication system of a wired broadcasting network of the present invention.

Claims (4)

입력 터미널(1)에서 입력되는 데이타 신호를 듀플렉서(2)에서 분리하고, 상기 듀플렉서(2)에서 분리된 데이타 신호가 수신부(4)를 거쳐 중앙처리장치(5)에 도달하고, 상기 중앙처리장치(5)에서 송신하는 데이타는 송신부(7)에서 입력 터미널(1)을 거쳐 방송국의 호스트 컴퓨터로 송수신하는 쌍방향 유선 방송 데이타 통신에 있어서, 가입자 단말기내의 수신부(4)의 수신 주파수나, 또는 송신부(7)의 송신 주파수를 변경하는 지시 신호를 방송국에서 송출하는 영상신호의 인밴드내에 실어 가입자 단말기의 중앙처리장치(5)에 전송하고, 상기 중앙처리장치(5)를 통해 수신부(4)의 수신 주파수와 송신부(7)의 송신 주파수를 변경할 시 송신부(4)와 수신부(7)의 PLL회로부를 통해 송,수신 주파수를 제어하여 변경시켜줌을 특징으로 하는 유선방송망의 쌍방향 데이타 통신 시스템.The data signal input from the input terminal 1 is separated from the duplexer 2, the data signal separated from the duplexer 2 reaches the central processing unit 5 via the receiving unit 4, and the central processing unit In the two-way wired broadcast data communication in which data transmitted from (5) is transmitted and received from the transmitter 7 via the input terminal 1 to the host computer of a broadcasting station, the reception frequency of the receiver 4 in the subscriber terminal or the transmitter ( 7) an instruction signal for changing the transmission frequency is loaded in the in-band of a video signal transmitted from a broadcasting station and transmitted to the central processing unit 5 of the subscriber station, and received by the receiving unit 4 through the central processing unit 5. Two-way data communication in a wired broadcasting network, characterized in that when the frequency and the transmission frequency of the transmitter 7 are changed, the transmission and reception frequencies are controlled and changed through the PLL circuits of the transmitter 4 and the receiver 7. system. 제1항에 있어서, 상기 PLL회로부는 수신부(4)의 수신 주파수를 가변시키는 수신 PLL부(6)와, 송신부(7)의 송신 주파수를 가변시키는 송신PLL부(8)로 분리하여 구성함을 특징으로 하는 유선방송망의 쌍방향 데이타통신 시스템.2. The PLL circuit unit according to claim 1, wherein the PLL circuit unit is divided into a reception PLL unit 6 for varying the reception frequency of the receiver 4 and a transmission PLL unit 8 for varying the transmission frequency of the transmitter 7. Interactive data communication system of a cable broadcasting network. 제1항에 있어서, 상기 PLL회로부는 수신부(4)와 송신부(7)의 수신 주파수 및 송신 주파수를 가변시키는 송수신 겸용 PLL로(10)로 구성함을 특징으로 하는 유선방송망의 쌍방향 데이타 통신 시스템.2. The bidirectional data communication system according to claim 1, wherein the PLL circuit unit comprises a transmission / reception PLL channel (10) for varying a reception frequency and a transmission frequency of the reception unit (4) and the transmission unit (7). 제1항에 있어서, 상기 중앙처리장치(5)에 연결되어 중앙처리장치(5)가 송신할 데이타를 방송국의 호스트 컴퓨터가 지정하는 시간과 방법으로 저장시켜 좋고 대기하다가 호스트 컴퓨터가 요구할 때 이 데이타를 송신해 줄 수 있도록 하는 기억수단(9)을 포함하여 구성됨을 특징으로 하는 유선방송망의 쌍방향 데이타 통신 시스템.The data processing apparatus according to claim 1, wherein the data is transmitted to the central processing unit 5 and stored in a time and method designated by the host computer of the broadcasting station. Interactive data communication system of a wired broadcasting network, characterized in that it comprises a storage means (9) for transmitting a. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940025358A 1994-03-07 1994-10-04 Both sides data communication system of cable broadcasting KR0135478B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019940025358A KR0135478B1 (en) 1994-10-04 1994-10-04 Both sides data communication system of cable broadcasting
US08/962,179 US6005937A (en) 1994-03-07 1997-10-31 Universal decoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940025358A KR0135478B1 (en) 1994-10-04 1994-10-04 Both sides data communication system of cable broadcasting

Publications (2)

Publication Number Publication Date
KR960016554A true KR960016554A (en) 1996-05-22
KR0135478B1 KR0135478B1 (en) 1998-04-22

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KR1019940025358A KR0135478B1 (en) 1994-03-07 1994-10-04 Both sides data communication system of cable broadcasting

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100703078B1 (en) * 2005-06-20 2007-04-06 삼성전기주식회사 Bidirection receiver for cable broadcating

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0964840A (en) * 1995-08-24 1997-03-07 Sony Corp Information processor and method, therefor broadcast equipment and data collection method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100703078B1 (en) * 2005-06-20 2007-04-06 삼성전기주식회사 Bidirection receiver for cable broadcating

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