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KR920014268A - Scrambled broadcast signal automatic selection method - Google Patents

Scrambled broadcast signal automatic selection method Download PDF

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Publication number
KR920014268A
KR920014268A KR1019900021213A KR900021213A KR920014268A KR 920014268 A KR920014268 A KR 920014268A KR 1019900021213 A KR1019900021213 A KR 1019900021213A KR 900021213 A KR900021213 A KR 900021213A KR 920014268 A KR920014268 A KR 920014268A
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KR
South Korea
Prior art keywords
signal
switching unit
normal
external input
selection method
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KR1019900021213A
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Korean (ko)
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KR930009189B1 (en
Inventor
김녹관
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이헌조
주식회사 금성사
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Priority to KR1019900021213A priority Critical patent/KR930009189B1/en
Publication of KR920014268A publication Critical patent/KR920014268A/en
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Publication of KR930009189B1 publication Critical patent/KR930009189B1/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite

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  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

내용 없음No content

Description

스크램블된 방송신호 자동선택방식Scrambled broadcast signal automatic selection method

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

제2도는 본 발명의 스크램블된 방송신호 자동선택방식을 실현하기 위한 블럭도.2 is a block diagram for realizing the scrambled broadcast signal automatic selection method of the present invention.

Claims (1)

위성신호처리부(1), 복호기(2), 외부신호스위칭부(3), 마이콤(4), 정상신호처리부(5)로 구성된 위성방송신호수신시스템에 있어서, 상기 마이콤(4)이 상기 자동이득제어신호검출부(6)를 통해 자동이득신호레벨을 기준치와 비교하여 상회하고 상기 동기신호분리부(7)를 통해 동기신호가 정상적으로 검출되면 상기 위성신호처리부(1)에 복원된 신호가 정상적인 영상 및 음성신호로 판단하여 이를 상기 신호절환부(8) 및 외부입력신호스위칭부(3)를 통해 상기 정상신호처리부(5)에 제공되게 상기 외부입력신호스위칭부(3) 및 신호절환부(8)를 제어하고 사기에서 동기신호가 정상적인 신호로 검출되지 않으면 상기 복호기(2)에서 정상신호로 복원된 영상 및 음성신호가 상기 신호절환부(8) 및 외부입력 신호스위칭부(3)를 통해 상기 정상신호처리부(5)에 제공되게 상기 외부입력 신호스위칭부(3) 및 신호절환부(8)를 제어하는 것을 특징으로 하는 스크램블된 방송신호 자동선택방식.In the satellite broadcast signal receiving system composed of a satellite signal processor (1), a decoder (2), an external signal switching unit (3), a microcomputer (4), and a normal signal processor (5), the microcomputer (4) obtains the automatic gain. When the control signal detector 6 exceeds the automatic gain signal level with a reference value and the synchronization signal is normally detected by the synchronization signal separator 7, the signal restored to the satellite signal processor 1 is a normal image. The external input signal switching unit 3 and the signal switching unit 8 determine the sound signal and provide the same to the normal signal processing unit 5 through the signal switching unit 8 and the external input signal switching unit 3. If the sync signal is not detected as a normal signal, the video and audio signals restored by the decoder 2 to the normal signal are transmitted through the signal switch 8 and the external input signal switch 3. To be provided to the signal processor 5 A scrambled broadcast signal automatic selection method, characterized in that for controlling the external input signal switching unit (3) and the signal switching unit (8). ※ 참고사항 : 최초출원내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900021213A 1990-12-20 1990-12-20 Automatic selecting method of scrambling signal Expired - Fee Related KR930009189B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900021213A KR930009189B1 (en) 1990-12-20 1990-12-20 Automatic selecting method of scrambling signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900021213A KR930009189B1 (en) 1990-12-20 1990-12-20 Automatic selecting method of scrambling signal

Publications (2)

Publication Number Publication Date
KR920014268A true KR920014268A (en) 1992-07-30
KR930009189B1 KR930009189B1 (en) 1993-09-23

Family

ID=19307996

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900021213A Expired - Fee Related KR930009189B1 (en) 1990-12-20 1990-12-20 Automatic selecting method of scrambling signal

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KR (1) KR930009189B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100258922B1 (en) * 1994-04-07 2000-06-15 윤종용 Decoder switching device and control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100258922B1 (en) * 1994-04-07 2000-06-15 윤종용 Decoder switching device and control method

Also Published As

Publication number Publication date
KR930009189B1 (en) 1993-09-23

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