| Patent | Date |
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Renewable traitor tracing
Grant 11,108,569 - Jin , et al. August 31, 2 | 2021-08-31 |
Unified broadcast encryption system
Grant 9,866,377 - Jin , et al. January 9, 2 | 2018-01-09 |
Unified Broadcast Encryption System
App 20170317822 - Jin; Hongxia ; et al. | 2017-11-02 |
Identifying and locating authenticated services using broadcast encryption
Grant 9,755,836 - Bellwood , et al. September 5, 2 | 2017-09-05 |
Countering server-based attacks on encrypted content
Grant 9,621,345 - Lotspiech April 11, 2 | 2017-04-11 |
Renewable Traitor Tracing
App 20170063558 - Jin; Hongxia ; et al. | 2017-03-02 |
Content Distribution With Renewable Content Protection
App 20160171186 - Marking; Aaron ; et al. | 2016-06-16 |
Countering Server-based Attacks On Encrypted Content
App 20160164675 - Lotspiech; Jeffrey B. | 2016-06-09 |
Method, system and program product for attaching a title key to encrypted content for synchronized transmission to a recipient
Grant 9,300,465 - Foster , et al. March 29, 2 | 2016-03-29 |
Countering server-based attacks on encrypted content
Grant 9,294,276 - Lotspiech March 22, 2 | 2016-03-22 |
Countering Server-based Attacks On Encrypted Content
App 20150229470 - Lotspiech; Jeffrey B. | 2015-08-13 |
Device archiving of past cluster binding information on a broadcast encryption-based network
Grant 9,009,487 - Bellwood , et al. April 14, 2 | 2015-04-14 |
Device archiving of past cluster binding information on a broadcast encryption-based network
Grant 9,009,489 - Bellwood , et al. April 14, 2 | 2015-04-14 |
Authentication and authorization of a device by a service using broadcast encryption
Grant 8,862,878 - Bellwood , et al. October 14, 2 | 2014-10-14 |
Method, system and program product for modifying content usage conditions during content distribution
Grant 8,656,178 - Foster , et al. February 18, 2 | 2014-02-18 |
Processing performance of repeated device compliance update messages
Grant 8,528,055 - Bellwood , et al. September 3, 2 | 2013-09-03 |
Tracing traitor coalitions and preventing piracy of digital content in a broadcast encryption system
Grant 8,495,755 - Jin , et al. July 23, 2 | 2013-07-23 |
Device Archiving Of Past Cluster Binding Information On A Broadcast Encryption-based Network
App 20120308002 - Bellwood; Thomas A. ; et al. | 2012-12-06 |
System and method for cryptographically authenticating data items
Grant 8,265,275 - Lotspiech September 11, 2 | 2012-09-11 |
Device Archiving Of Past Cluster Binding Information On A Broadcast Encryption-based Network
App 20120131337 - Bellwood; Thomas A. ; et al. | 2012-05-24 |
Processing Performance Of Repeated Device Compliance Update Messages
App 20120131638 - Bellwood; Thomas A. ; et al. | 2012-05-24 |
Authentication And Authorization Of A Device By A Service Using Broadcast Encryption
App 20120131338 - Bellwood; Thomas A. ; et al. | 2012-05-24 |
Identifying And Locating Authenticated Services Using Broadcast Encryption
App 20120131344 - Bellwood; Thomas A. ; et al. | 2012-05-24 |
System and method for solving the "birthday problem" with watermarking
Grant 8,023,693 - Bellwood , et al. September 20, 2 | 2011-09-20 |
System and method for solving the "birthday" problem with watermarking
Grant 7,885,427 - Bellwood , et al. February 8, 2 | 2011-02-08 |
Delivering enhanced multimedia content on physical media
Grant 7,881,476 - Lotspiech , et al. February 1, 2 | 2011-02-01 |
Tamper-resistant trusted Java virtual machine and method of using the same
Grant 7,747,877 - Jin , et al. June 29, 2 | 2010-06-29 |
System and method for guaranteeing software integrity via combined hardware and software authentication
Grant 7,734,921 - Lotspiech June 8, 2 | 2010-06-08 |
Discouraging unauthorized redistribution of protected content by cryptographically binding the content to individual authorized recipients
Grant 7,725,945 - Ripley , et al. May 25, 2 | 2010-05-25 |
System and method for guaranteeing software integrity via combined hardware and software authentication
Grant 7,721,098 - Lotspiech May 18, 2 | 2010-05-18 |
System, service, and method for enabling authorized use of distributed content on a protected media
Grant 7,685,636 - Leake, Jr. , et al. March 23, 2 | 2010-03-23 |
Delivering Enhanced Multimedia Content On Physical Media
App 20090185688 - Lotspiech; Jeffrey B. ; et al. | 2009-07-23 |
Tamper-Resistant Trusted JAVA Virtual Machine And Method Of Using The Same
App 20090138731 - Jin; Hongxia ; et al. | 2009-05-28 |
System, method, and service for delivering enhanced multimedia content on physical media
Grant 7,539,307 - Lotspiech , et al. May 26, 2 | 2009-05-26 |
Tamper-resistant trusted java virtual machine and method of using the same
Grant 7,516,331 - Jin , et al. April 7, 2 | 2009-04-07 |
System and method for secure authentication of external software modules provided by third parties
Grant 7,500,109 - Nusser , et al. March 3, 2 | 2009-03-03 |
System And Method For Solving The Birthday Problem With Watermarking
App 20090034783 - Bellwood; Thomas A. ; et al. | 2009-02-05 |
System and Method for Solving the "Birthday Problem" with Watermarking
App 20090034785 - Bellwood; Thomas A. ; et al. | 2009-02-05 |
System And Method For Guaranteeing Software Integrity Via Combined Hardware And Software Authentication
App 20080313460 - Lotspiech; Jeffrey B. | 2008-12-18 |
Method, System And Program Product For Attaching A Title Key To Encrypted Content For Synchronized Transmission To A Recipient
App 20080273702 - Foster; Eric M. ; et al. | 2008-11-06 |
System And Method For Guaranteeing Software Integrity Via Combined Hardware And Software Authentication
App 20080215885 - Lotspiech; Jeffrey B. | 2008-09-04 |
Method, system and program product for attaching a title key to encrypted content for synchronized transmission to a recipient
Grant 7,356,147 - Foster , et al. April 8, 2 | 2008-04-08 |
Secure IP based streaming in a format independent manner
Grant 7,249,264 - Belknap , et al. July 24, 2 | 2007-07-24 |
Verifying the integrity of a media key block by storing validation data in the validation area of media
Grant 7,155,591 - Ripley , et al. December 26, 2 | 2006-12-26 |
System, service, and method for enabling authorized use of distributed content on a protected media
App 20060200865 - Leake; Donald E. JR. ; et al. | 2006-09-07 |
Method, system and program product for managing a size of a key management block during content distribution
Grant 7,092,527 - Foster , et al. August 15, 2 | 2006-08-15 |
System and method for secure authentication of external software modules provided by third parties
Grant 6,978,375 - Nusser , et al. December 20, 2 | 2005-12-20 |
System and method for secure authentication of external software modules provided by third parties
App 20050216422 - Lotspiech, Jeffrey B. ; et al. | 2005-09-29 |
Verifying the integrity of a media key block by storing validation data in a validation area of media
Grant 6,912,634 - Ripley , et al. June 28, 2 | 2005-06-28 |
System, method, and service for delivering enhanced multimedia content on physical media
App 20050111663 - Lotspiech, Jeffrey B. ; et al. | 2005-05-26 |
Tamper-resistant trusted java virtual machine and method of using the same
App 20050114683 - Jin, Hongxia ; et al. | 2005-05-26 |
Verifying the integrity of a media key block by storing validation data in the validation area of media
App 20040205315 - Ripley, Micheal S. ; et al. | 2004-10-14 |
Verifying the integrity of a media key block by storing validation data in the cutting area of media
Grant 6,738,878 - Ripley , et al. May 18, 2 | 2004-05-18 |
Method, system and program product for managing a size of a key management block during content distribution
App 20030198350 - Foster, Eric M. ; et al. | 2003-10-23 |
Method, system and program product for attaching a title key to encrypted content for synchronized transmission to a recipient
App 20030200176 - Foster, Eric M. ; et al. | 2003-10-23 |
Method, system and program product for modifying content usage conditions during content distribution
App 20030198351 - Foster, Eric M. ; et al. | 2003-10-23 |
Secure IP based streaming in a format independent manner
App 20030188152 - Belknap, William R. ; et al. | 2003-10-02 |
Secure electronic content distribution on CDS and DVDs
Grant 6,611,812 - Hurtado , et al. August 26, 2 | 2003-08-26 |
Secure Electronic Content Distribution On Cds And Dvds
App 20030105718 - HURTADO, MARCO M. ; et al. | 2003-06-05 |
Discouraging unauthorized redistribution of protected content by cryptographically binding the content to individual authorized recipients
App 20030005309 - Ripley, Michael S. ; et al. | 2003-01-02 |
Verifying the integrity of a media key block by storing validation data in the cutting area of media
App 20020087814 - Ripley, Michael S. ; et al. | 2002-07-04 |
Verifying the integrity of a media key block by storing validation data in a validation area of media
App 20020087818 - Ripley, Micheal S. ; et al. | 2002-07-04 |
Key management system for digital content player
Grant 6,398,245 - Gruse , et al. June 4, 2 | 2002-06-04 |
Electronic content delivery system
Grant 6,226,618 - Downs , et al. May 1, 2 | 2001-05-01 |
Method of generating lines and curves of user specified thicknesses on a raster device
Grant 5,293,472 - Lotspiech March 8, 1 | 1994-03-08 |
Method of controlling a bit-image printer
Grant 4,745,560 - Decker , et al. May 17, 1 | 1988-05-17 |
Algorithm for the segmentation of printed fixed pitch documents
Grant 4,377,803 - Lotspiech , et al. March 22, 1 | 1983-03-22 |
Method and apparatus for rotating the scan format of digital images
Grant 4,271,476 - Lotspiech June 2, 1 | 1981-06-02 |
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