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Illegal view and copy protection method in digital video system and controlling method thereof 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04N-071/67
출원번호 US-0562047 (1995-11-22)
우선권정보 KR-0031364 (1994-11-26)
발명자 / 주소
  • Park Tae Joon,KRX
출원인 / 주소
  • LG Electronics, Inc., KRX
대리인 / 주소
    White
인용정보 피인용 횟수 : 108  인용 특허 : 0

초록 ▼

Illegal view and copy protection method in a digital video system for preventing an illegal user from viewing the digital video system and copying therefrom, by setting a descrambling method which decrypts split keystreams adopting a smart card, including a determination step for determining receive

대표청구항 ▼

[ What is claimed is:] [1.] An illegal view and copy protection method in a digital video system comprising:a determination step for determining received data of having been scrambled;a reproduction step, if the received data was determined to be scrambled data in the determination step, splitting t

이 특허를 인용한 특허 (108)

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