KR950030704A - Decoder switching device and control method - Google Patents

Decoder switching device and control method Download PDF

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Publication number
KR950030704A
KR950030704A KR1019940007242A KR19940007242A KR950030704A KR 950030704 A KR950030704 A KR 950030704A KR 1019940007242 A KR1019940007242 A KR 1019940007242A KR 19940007242 A KR19940007242 A KR 19940007242A KR 950030704 A KR950030704 A KR 950030704A
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KR
South Korea
Prior art keywords
signal
satellite broadcast
decoder
scramble
switching
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Application number
KR1019940007242A
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Korean (ko)
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KR100258922B1 (en
Inventor
이호성
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김광호
삼성전자 주식회사
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Priority to KR1019940007242A priority Critical patent/KR100258922B1/en
Publication of KR950030704A publication Critical patent/KR950030704A/en
Application granted granted Critical
Publication of KR100258922B1 publication Critical patent/KR100258922B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/23—Arrangements for conditional access to broadcast information or to broadcast-related services using cryptography, e.g. encryption, authentication, key distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/90—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for satellite broadcast receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/61—Arrangements for services using the result of monitoring, identification or recognition covered by groups H04H60/29-H04H60/54

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

Abstract

이 발명은 위성방송 수신용 튜너 내장형 텔레비전에 이용되는 디코더 스위칭 시스템에 관한 것이다. 이 디코더 스위칭 시스템은 마이크로 컴퓨터를 이용하여 수신 안테나로부터 제공된 방송신호가 스크램블링되었는지를 판단하고, 그 판단신호에 따라 스위칭 회로를 제어하도록 구성되어 있다. 또한 펄스코드 디코더를 이용하여 복조기에서 복조된 신호를 디지털 신호로 바꾸어 마이크로 컴퓨터에 스크램블 판단에 기준되는 신호를 제공함으로써 스크램블 여부가 쉽게 검출된다. 따라서 현재 생산되고 있는 스크램블 디코더가 외부에 부착되는 위성방송 수신 내장형 텔레비전 수상기에 매우 유용하게 적용될 수가 있다.The present invention relates to a decoder switching system used in a tuner built-in television for satellite broadcasting reception. The decoder switching system is configured to determine whether the broadcast signal provided from the receiving antenna is scrambled using a microcomputer, and to control the switching circuit according to the determination signal. In addition, by using a pulse code decoder, the demodulated signal in the demodulator is converted into a digital signal to provide a signal based on the scramble determination to the microcomputer, thereby easily detecting scramble. Therefore, the presently produced scramble decoder can be very usefully applied to a satellite receiver built-in television receiver attached to the outside.

Description

디코더 스위칭 장치 및 그 제어방법Decoder switching device and control method

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

제1도는 이 발명에 따른 디코더 스위칭 장치의 개략적 회로도, 제2도는 이 발명에 따른 디코더 스위칭 장치의 제어방법을 나타낸 흐름도이다.1 is a schematic circuit diagram of a decoder switching device according to the present invention, and FIG. 2 is a flowchart showing a control method of the decoder switching device according to the present invention.

Claims (5)

위성방송 안테나로부터 수신된 위성방송 신호를 튜닝하는 위성방송 튜너와, 상기 위성방송신호를 시청 가능하도록 디코드하는 스크램블 디코더를 구비한 디코더 스위칭 장치에 있어서, 상기 안테나로부터의 위성방송 신호의 스크램블 여부를 검출하는 스크램블 검출수단과; 상기 스크램블 검출수단에 의해 판단된 정보에 의거하여 스위칭 제어신호를 발생시키는 스위칭 제어수단과; 상기 스위칭 제어수단의 출력신호에 따라 위성방송 튜너의 출력신호 또는 상기 스크램블 디코더의 출력신호중 하나를 선택하는 스위칭 수단으로 구성된 것을 특징으로 하는 디코더 스위칭 장치.A decoder switching device comprising a satellite broadcast tuner for tuning a satellite broadcast signal received from a satellite broadcast antenna, and a scramble decoder for decoding the satellite broadcast signal so that the satellite broadcast signal can be viewed. Scramble detection means; Switching control means for generating a switching control signal based on the information determined by the scramble detection means; And switching means for selecting one of an output signal of the satellite broadcast tuner and an output signal of the scramble decoder according to the output signal of the switching control means. 제1항에 있어서, 상기 스크램블 검출수단은, 펄스코드 변조방식에 의해 검출된 디지탈 신호를 이용하여 검출하는 마이크로 컴퓨터를 포함하는 것을 특징으로 하는 디코더 스위칭 장치.2. The decoder switching device according to claim 1, wherein said scramble detection means includes a microcomputer for detecting using a digital signal detected by a pulse code modulation method. 위성방송 수신기로부터 수신된 방송신호가 스크램블되었는지를 판단하여 스위칭 신호를 발생시키는 디코더 스위칭 장치의 제어방법에 있어서, 위성방송 수신하는지 및 유료방송인가를 판단하는 단계와; 복조된 방송신호를 펄스코드 변조방식에 의해 디지탈 신호로 변경하고, 그 변경된 디지탈 방송신호를 이용하여 스크램블되었는지를 판단하는 단계와, 상기 스크램블 여부 판단근거에 의거하여 스위칭 제어신호를 발생시키는 단계로 구성된 것을 특징으로 하는 디코더 스위칭 장치의 제어방법.A control method of a decoder switching device that determines whether a broadcast signal received from a satellite broadcast receiver is scrambled and generates a switching signal, the method comprising: determining whether satellite broadcast is received and whether pay is broadcast; Changing the demodulated broadcast signal into a digital signal by a pulse code modulation method, determining whether it is scrambled using the changed digital broadcast signal, and generating a switching control signal based on the scrambled basis A control method of a decoder switching device, characterized in that. 제3항에 있어서, 상기 위성방송 수신단계에서 위성방송 수신중이 아닐 경우에는 위성방송 튜너 선택용 제어신호 해제단계가 더 구비되는 것을 특징으로 하는 디코더 스위칭 장치의 제어방법.4. The method of claim 3, further comprising releasing a control signal for selecting a satellite broadcast tuner when the satellite broadcast is not being received in the satellite broadcast receiving step. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019940007242A 1994-04-07 1994-04-07 Decoder switching device and control method thereof KR100258922B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940007242A KR100258922B1 (en) 1994-04-07 1994-04-07 Decoder switching device and control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940007242A KR100258922B1 (en) 1994-04-07 1994-04-07 Decoder switching device and control method thereof

Publications (2)

Publication Number Publication Date
KR950030704A true KR950030704A (en) 1995-11-24
KR100258922B1 KR100258922B1 (en) 2000-06-15

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KR1019940007242A KR100258922B1 (en) 1994-04-07 1994-04-07 Decoder switching device and control method thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR980006992A (en) * 1996-06-13 1998-03-30 구자홍 Digital Broadcast Transceiver

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930009189B1 (en) * 1990-12-20 1993-09-23 주식회사 금성사 Automatic selecting method of scrambling signal
KR940000941B1 (en) * 1991-04-09 1994-02-04 주식회사 금성사 Scrambling signal switching circuit of charged broadcasting systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR980006992A (en) * 1996-06-13 1998-03-30 구자홍 Digital Broadcast Transceiver

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KR100258922B1 (en) 2000-06-15

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