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

Mark A. Hollar

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Enhanced copy protection of proprietary material employing...

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate

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Method and apparatus for carrying data in a video signal so...

Cryptography – Video cryptography
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Method and apparatus for conveying rights across an analog...

Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate

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Method and apparatus for determining digital A/V content...

Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
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Method and apparatus for DVD copy protection with selective...

Electrical computers and digital processing systems: support – Data processing protection using cryptography
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