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

David Emery Virag

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Conditional access system for set-top boxes

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Central trusted authority provides computer authentication
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Correlation detection improvement by averaging spread...

Pulse or digital communications – Spread spectrum – Direct sequence
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Directory delivery system and method for a digital...

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
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Method for automatically determining the configuration of a...

Interactive video distribution systems – Local video distribution system – Multiunit or multiroom structure
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Secure data transmission via multichannel entitlement...

Cryptography – Video cryptography – Video electric signal modification
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Profile ID: LFUS-PAI-P-2195100

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