Issued Patents All Time
Showing 1–25 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11212583 | Securing media content using interchangeable encryption key | Andrew D. Maholski | 2021-12-28 |
| 9762958 | Localization of customer premises equipment in a digital communication network | Douglas F. Woodhead, William Woodward | 2017-09-12 |
| 9485095 | Client control through content key format | — | 2016-11-01 |
| 9420336 | Localization of customer premises equipment in a digital communication network | Douglas F. Woodhead, William Woodward | 2016-08-16 |
| 9277295 | Securing media content using interchangeable encryption key | Andrew D. Maholski | 2016-03-01 |
| 8837726 | Content protection key encryptor for security providers | — | 2014-09-16 |
| 8693692 | Direct delivery of content descrambling keys using chip-unique code | — | 2014-04-08 |
| 8577033 | Method for partially encrypting program data | Anthony J. Wasilewski | 2013-11-05 |
| 8548166 | Method for partially encrypting program data | Anthony J. Wasilewski | 2013-10-01 |
| 8542830 | Method for partially encrypting program data | Anthony J. Wasilewski | 2013-09-24 |
| 8526613 | Subscriber network receiving digital packets and transmitting digital packets below a predetermined maximum bit rate | — | 2013-09-03 |
| 8396216 | Partial dual-encryption using program map tables | Jonathan Bradford Evans, Anthony J. Wasilewski, William Woodward | 2013-03-12 |
| 8385545 | Secure content key distribution using multiple distinct methods | — | 2013-02-26 |
| 8312265 | Encrypting received content | Jeffrey C. Hopper | 2012-11-13 |
| 8229115 | Use of copyright text in key derivation function | — | 2012-07-24 |
| 8130949 | Partially reversible key obfuscation | — | 2012-03-06 |
| 8127009 | Renewable conditional access | Henry Clarence Lilly, III, David A. Sedacca, Michael A. Gaul | 2012-02-28 |
| 7949133 | Controlled cryptoperiod timing to reduce decoder processing load | — | 2011-05-24 |
| 7861082 | Validating client-receivers | Anthony J. Wasilewski, Mark D. Mattox | 2010-12-28 |
| 7860250 | Apparatus for entitling and transmitting service instances to remote client devices | Samuel H. Russ, Michael A. Gaul, Anthony J. Wasilewski | 2010-12-28 |
| 7805399 | Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system | William Woodward, Jonathan Bradford Evans, Anthony J. Wasilewski | 2010-09-28 |
| 7715552 | Data authentication with a secure environment | David A. Sedacca | 2010-05-11 |
| 7555123 | Processing an MPEG elementary stream in a conditional access overlay environment | Jeffrey C. Hopper | 2009-06-30 |
| 7505592 | Apparatus for entitling and transmitting service instances to remote client devices | Samuel H. Russ, Michael A. Gaul, Anthony J. Wasilewski | 2009-03-17 |
| 7496198 | Partial dual encrypted stream utilizing program map tables | Jonathan Bradford Evans, Anthony J. Wasilewski, William Woodward | 2009-02-24 |