4. Cryptography
  5. Key management
  6. Having particular key generator

Harumasa Kajita

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Cable television system

Cryptography – Key management – Having particular key generator
Patent

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Cable television transmission control system

Telecommunications – Interference signal transmission
Patent

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Key signal conversion device for CATV system

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent

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Pay television

Cryptography – Key management – Having particular key generator
Patent

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Surge absorber

Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – Space discharge device
Patent

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Profile ID: LFUS-PAI-P-522428

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