Issued Patents All Time
Showing 76–93 of 93 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6748539 | System and method for securely checking in and checking out digitized content | — | 2004-06-08 |
| 6738878 | Verifying the integrity of a media key block by storing validation data in the cutting area of media | Michael Ripley, Atsushi Ishihara, Taku Kato, Yoshihisa Fukushima | 2004-05-18 |
| 6650753 | System for encrypting broadcast programs in the presence of compromised receiver devices | Kevin Snow McCurley | 2003-11-18 |
| 6611812 | Secure electronic content distribution on CDS and DVDs | Marco M. Hurtado, Kenneth L. Milsted, George Gregory Gruse, Edgar Downs, Christopher T. Lehman +1 more | 2003-08-26 |
| 6609116 | System and method for securely updating copy-protected media | — | 2003-08-19 |
| 6398245 | Key management system for digital content player | George Gregory Gruse, Marco M. Hurtado, Kenneth L. Milsted | 2002-06-04 |
| 6345289 | Intermediate system transmitting relevant selections based on permutation function applied consumer/information signature vectors for privacy | Robert J. Morris | 2002-02-05 |
| 6226618 | Electronic content delivery system | Edgar Downs, George Gregory Gruse, Marco M. Hurtado, Christopher T. Lehman, Kenneth L. Milsted | 2001-05-01 |
| 6118873 | System for encrypting broadcast programs in the presence of compromised receiver devices | Kevin Snow McCurley | 2000-09-12 |
| 6038316 | Method and system for protection of digital information | Cynthia Dwork, Joseph Y. Halpern | 2000-03-14 |
| 5978482 | Method and system for protection of digital information | Cynthia Dwork, Joseph Y. Halpern | 1999-11-02 |
| 5946473 | LFSR implementation using split-table lookup | James Hugh Morgan | 1999-08-31 |
| 5913030 | Method and system for client/server communications with user information revealed as a function of willingness to reveal and whether the information is required | Robert J. Morris | 1999-06-15 |
| 5786907 | High speed color compensation system | — | 1998-07-28 |
| 5293472 | Method of generating lines and curves of user specified thicknesses on a raster device | — | 1994-03-08 |
| 4745560 | Method of controlling a bit-image printer | John W. Decker, James C. King, Ray A. Larner | 1988-05-17 |
| 4377803 | Algorithm for the segmentation of printed fixed pitch documents | Wayne L. Wohler | 1983-03-22 |
| 4271476 | Method and apparatus for rotating the scan format of digital images | — | 1981-06-02 |