KR890012096U - 쌍방향 catv 시스템 - Google Patents

쌍방향 catv 시스템

Info

Publication number
KR890012096U
KR890012096U KR2019870020147U KR870020147U KR890012096U KR 890012096 U KR890012096 U KR 890012096U KR 2019870020147 U KR2019870020147 U KR 2019870020147U KR 870020147 U KR870020147 U KR 870020147U KR 890012096 U KR890012096 U KR 890012096U
Authority
KR
South Korea
Prior art keywords
catv system
interactive catv
interactive
catv
Prior art date
Application number
KR2019870020147U
Other languages
English (en)
Other versions
KR910009591Y1 (ko
Inventor
이원식
Original Assignee
삼성전기 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 삼성전기 주식회사 filed Critical 삼성전기 주식회사
Priority to KR2019870020147U priority Critical patent/KR910009591Y1/ko
Publication of KR890012096U publication Critical patent/KR890012096U/ko
Application granted granted Critical
Publication of KR910009591Y1 publication Critical patent/KR910009591Y1/ko

Links

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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Systems (AREA)
KR2019870020147U 1987-11-20 1987-11-20 쌍방향 catv 시스템 KR910009591Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870020147U KR910009591Y1 (ko) 1987-11-20 1987-11-20 쌍방향 catv 시스템

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870020147U KR910009591Y1 (ko) 1987-11-20 1987-11-20 쌍방향 catv 시스템

Publications (2)

Publication Number Publication Date
KR890012096U true KR890012096U (ko) 1989-07-15
KR910009591Y1 KR910009591Y1 (ko) 1991-12-13

Family

ID=19269622

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870020147U KR910009591Y1 (ko) 1987-11-20 1987-11-20 쌍방향 catv 시스템

Country Status (1)

Country Link
KR (1) KR910009591Y1 (ko)

Also Published As

Publication number Publication date
KR910009591Y1 (ko) 1991-12-13

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Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20010912

Year of fee payment: 11

EXPY Expiration of term