Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7472285 | Apparatus and method for memory encryption with reduced decryption latency | Carlos V. Rozas | 2008-12-30 |
| 7426274 | Method and apparatus for generating pseudo random numbers in a video device having an embedded cipher unit | Robert W. Faber, David A. Lee, Brendan Traw | 2008-09-16 |
| 7369661 | Method and apparatus for detection of loss of cipher synchronization | — | 2008-05-06 |
| 7366914 | Source code transformation based on program operators | — | 2008-04-29 |
| 7305711 | Public key media key block | Carl M. Ellison, Brendan Traw, Michael Ripley | 2007-12-04 |
| 7298849 | Method and apparatus for simultaneous encryption and decryption of publicly distributed media | — | 2007-11-20 |
| 7233666 | Method and apparatus for increasing the entropy of a pseudorandom number | David A. Lee | 2007-06-19 |
| 7190787 | Stream cipher having a combiner function with storage based shuffle unit | Carl M. Ellison | 2007-03-13 |
| 7184550 | Method and apparatus for simultaneous decryption and re-encryption of publicly distributed content via stream ciphers | — | 2007-02-27 |
| 7068786 | Dual use block/stream cipher | David A. Lee, Robert W. Faber | 2006-06-27 |
| 7043021 | Digital video content transmission ciphering and deciphering method and apparatus | David A. Lee, Robert W. Faber | 2006-05-09 |
| 6985591 | Method and apparatus for distributing keys for decrypting and re-encrypting publicly distributed media | — | 2006-01-10 |
| 6956949 | Method and apparatus for authenticating an hierarchy of video receiving devices | Robert W. Faber, Brendan Traw, David A. Lee | 2005-10-18 |
| 6947558 | Stream cipher having a shuffle network combiner function | David A. Lee, Robert W. Faber | 2005-09-20 |
| 6931129 | Method and apparatus for generating pseudo random numbers in a video device having an embedded cipher unit | Robert W. Faber, David A. Lee, Brendan Traw | 2005-08-16 |
| 6920221 | Method and apparatus for protected exchange of status and secret values between a video source application and a video hardware interface | Robert W. Faber, David A. Lee, Brendan Traw, Richard P. Mangold | 2005-07-19 |
| 6804355 | Block cipher for small selectable block sizes | — | 2004-10-12 |
| 6731758 | Digital video content transmission ciphering and deciphering method and apparatus | David A. Lee, Robert W. Faber | 2004-05-04 |
| 6725373 | Method and apparatus for verifying the integrity of digital objects using signed manifests | John M. Carbajal, Carlos V. Rozas | 2004-04-20 |
| 6477252 | Digital video content transmission ciphering and deciphering method and apparatus | Robert W. Faber, David A. Lee, Brendan Traw | 2002-11-05 |
| 6256577 | Using predictive traffic modeling | — | 2001-07-03 |
| 6205550 | Tamper resistant methods and apparatus | Joseph M. Nardone, Richard P. Mangold, Jody L. Pfotenhauer, Keith L. Shippy, David W. Aucsmith +1 more | 2001-03-20 |
| 6178509 | Tamper resistant methods and apparatus | Joseph M. Nardone, Richard Mangold, Jody L. Pfotenhauer, Keith L. Shippy, David W. Aucsmith +1 more | 2001-01-23 |
| 6175925 | Tamper resistant player for scrambled contents | Joseph M. Nardone, Richard P. Mangold, Jody L. Pfotenhauer, Keith L. Shippy, David W. Aucsmith +1 more | 2001-01-16 |
| 6105137 | Method and apparatus for integrity verification, authentication, and secure linkage of software modules | Carlos V. Rozas | 2000-08-15 |