KR100392961B1 - Cable modem communication system using public tv receiving network - Google Patents

Cable modem communication system using public tv receiving network Download PDF

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Publication number
KR100392961B1
KR100392961B1 KR1020020087175A KR20020087175A KR100392961B1 KR 100392961 B1 KR100392961 B1 KR 100392961B1 KR 1020020087175 A KR1020020087175 A KR 1020020087175A KR 20020087175 A KR20020087175 A KR 20020087175A KR 100392961 B1 KR100392961 B1 KR 100392961B1
Authority
KR
South Korea
Prior art keywords
public
cable modem
receiving network
frequency band
communication system
Prior art date
Application number
KR1020020087175A
Other languages
Korean (ko)
Inventor
Sang Hoon Cho
Han Bit Kang
Myung Soo Eun
Original Assignee
Net & Sys Co Ltd
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 Net & Sys Co Ltd filed Critical Net & Sys Co Ltd
Application granted granted Critical
Publication of KR100392961B1 publication Critical patent/KR100392961B1/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
    • H04N7/102—Circuits therefor, e.g. noise reducers, equalisers, amplifiers
    • 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

PURPOSE: A cable modem communication system using a public TV receiving network is provided to realize a stable data communication service by using a frequency band not used for a public TV receiving network and a cable modem, having a good noise characteristic. CONSTITUTION: A cable modem(20) converts a signal applied from a personal terminal into a first frequency band signal which is not used for a public TV receiving network, and transmits the converted signal to the public TV receiving network. A converter(16) is placed at a connection point of a transmission network connected with a CMTS(Cable Modem Termination System)(12) and the public TV receiving network connected with the cable modem. The converter converts the first frequency band signal applied from the cable modem into an upward frequency band signal defined in the CMTS. The converter converts a downward signal inputted from the CMTS into a frequency band signal which is not used for the public TV receiving network.
KR1020020087175A 2002-05-02 2002-12-30 Cable modem communication system using public tv receiving network KR100392961B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20020024219 2002-05-02

Publications (1)

Publication Number Publication Date
KR100392961B1 true KR100392961B1 (en) 2003-07-28

Family

ID=37421983

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020020087175A KR100392961B1 (en) 2002-05-02 2002-12-30 Cable modem communication system using public tv receiving network

Country Status (1)

Country Link
KR (1) KR100392961B1 (en)

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