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Pieter den Toonder
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Dordrecht, NL
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last 30 patents
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Patent Grant
Video scrambling by the application of a variable periodic scrambli...
Patent number
4,568,974
Issue date
Feb 4, 1986
Oak Industries Inc.
Pieter den Toonder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Phase change dynamic scrambling
Patent number
4,447,828
Issue date
May 8, 1984
Oak Industries Inc.
Pieter den Toonder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Coding and decoding system for video and audio signals
Patent number
4,424,532
Issue date
Jan 3, 1984
Oak Industries Inc.
Pieter den Toonder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Coding and decoding system for video and audio signals
Patent number
4,353,088
Issue date
Oct 5, 1982
Oak Industries, Inc.
Pieter den Toonder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Video signal coding by video signal polarity reversal on the basis...
Patent number
4,340,906
Issue date
Jul 20, 1982
Oak Industries Inc.
Pieter den Toonder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of coding audio and video signals
Patent number
4,336,553
Issue date
Jun 22, 1982
Oak Industries
Pieter den Toonder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Television coding system with channel level identification
Patent number
4,323,922
Issue date
Apr 6, 1982
Oak Industries Inc.
Pieter den Toonder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Pole mounted converter
Patent number
4,135,157
Issue date
Jan 16, 1979
Oak Industries Inc.
Pieter den Toonder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal distribution device for a cable television
Patent number
4,039,954
Issue date
Aug 2, 1977
Oak Holland B.V.
Pieter den Toonder
H04 - ELECTRIC COMMUNICATION TECHNIQUE