4. Cryptography
  5. Video cryptography
  6. Video electric signal modification

William J. Wrobleski

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Method and apparatus for improving the effects of color...

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 improving the playability of a PAL...

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 recording scrambled video audio signals

Cryptography – Video cryptography – Video electric signal modification
Patent

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Method and system for preventing the off screen copying of a vid

Television – Video display – Projection device
Patent

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Profile ID: LFUS-PAI-P-1813211

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