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Post-compression hidden data transport for video 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04B-001/22
출원번호 US-0912434 (1997-08-18)
발명자 / 주소
  • Lee Chong U.
  • Moallemi Kamran
  • Hinderling Jurg
출원인 / 주소
  • Solana Technology Development Corporation
대리인 / 주소
    Lipsitz
인용정보 피인용 횟수 : 188  인용 특허 : 19

초록 ▼

Auxiliary data is carried substantially imperceptibly with video transform data in combined transform samples according to a visibility threshold. The auxiliary data provides a capability for a copy protect scheme or verification of television viewing activity. The video transform samples are extrac

대표청구항 ▼

[ What is claimed is:] [1.] A method for providing auxiliary data subband samples in a compressed digital video data stream, comprising the steps of:providing a plurality of video transform samples from said data stream;providing a data carrier sequence;modulating said data carrier sequence by an au

이 특허에 인용된 특허 (19)

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