4. Motion video signal processing for recording or reproducing
  5. Local trick play processing
  6. With randomly accessible medium

Wenjun Zeng

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Digital image scrambling for image coding systems

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Packet header designating cryptographically protected data
Reexamination Certificate

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Digital watermarking in a perceptually uniform domain

Image analysis – Applications
Reexamination Certificate

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Distortion-adaptive visual frequency weighting

Image analysis – Image compression or coding – Quantization
Reexamination Certificate

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Distortion-adaptive visual frequency weighting

Image analysis – Image compression or coding – Quantization
Reexamination Certificate

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Error resilient digital video scrambling

Cryptography – Video cryptography – Video electric signal modification
Reexamination Certificate

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