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Patent applications and USPTO patent grants for Schipper; Robert.The latest application filed is for "tracing unauthorized use of secure modules".
Patent | Date |
---|---|
Content Decryption Device And Encryption System Using An Additional Key Layer App 20110238991 - Schipper; Robert | 2011-09-29 |
Tracing Unauthorized Use Of Secure Modules App 20110239296 - Schipper; Robert | 2011-09-29 |
Conditional access method and devices Grant 7,577,253 - Schipper , et al. August 18, 2 | 2009-08-18 |
Device and method for selectively supplying access to a service encrypted using a control word, and smart card Grant 7,477,744 - Schipper January 13, 2 | 2009-01-13 |
Conditional access method and devices App 20070133797 - Schipper; Robert ;   et al. | 2007-06-14 |
Device and method for selectively supplying access to a service encrypted using a control word, and smart card App 20040170278 - Schipper, Robert | 2004-09-02 |
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