Inventor · disambiguated record
Jeffrey Bruce Lotspiech
Also filed as: LOTSPIECH JEFFREY · LOTSPIECH JEFFREY B · LOTSPIECH JEFFREY BRUCE
94 granted patents·7 pending applications·6,505 citations·filing 1979–2023
99Inventor score
Top patents by PatentIndex Score
101 records- 0198US6398245B1Key management system for digital content playerIBM·Filed 1998·Granted Jun 4, 2002·442 cites·46 claims
- 0298US6226618B1Electronic content delivery systemIBM·Filed 1998·Granted May 1, 2001·3k cites·26 claims
- 0398US4271476AMethod and apparatus for rotating the scan format of digital imagesIBM·Filed 1979·Granted Jun 2, 1981·107 cites·20 claims
- 0497US7630497B2System and method for assigning sequence keys to a media player to enable hybrid traitor tracingIBM·Filed 2005·Granted Dec 8, 2009·45 cites·19 claims
- 0596US7971070B2Read/write media key blockIBM·Filed 2005·Granted Jun 28, 2011·27 cites·3 claims
- 0696US7039803B2Method for broadcast encryption and key revocation of stateless receiversIBM·Filed 2001·Granted May 2, 2006·69 cites·78 claims
- 0796US6748539B1System and method for securely checking in and checking out digitized contentIBM·Filed 2000·Granted Jun 8, 2004·151 cites·17 claims
- 0896US6118873ASystem for encrypting broadcast programs in the presence of compromised receiver devicesIBM·Filed 1998·Granted Sep 12, 2000·285 cites·26 claims
- 0995US6611812B2Secure electronic content distribution on CDS and DVDsIBM·Filed 1999·Granted Aug 26, 2003·824 cites·20 claims
- 1095US6609116B1System and method for securely updating copy-protected mediaIBM·Filed 1999·Granted Aug 19, 2003·67 cites·16 claims
- 1194US6738878B2Verifying the integrity of a media key block by storing validation data in the cutting area of mediaINTEL CORP·Filed 2001·Granted May 18, 2004·43 cites·24 claims
- 1293US7516331B2Tamper-resistant trusted java virtual machine and method of using the sameIBM·Filed 2003·Granted Apr 7, 2009·89 cites·33 claims
- 1393US6912634B2Verifying the integrity of a media key block by storing validation data in a validation area of mediaINTEL CORP·Filed 2001·Granted Jun 28, 2005·43 cites·15 claims
- 1493US6650753B1System for encrypting broadcast programs in the presence of compromised receiver devicesIBM·Filed 2000·Granted Nov 18, 2003·28 cites·8 claims
- 1591US7996685B2Method for effective tamper resistanceIBM·Filed 2008·Granted Aug 9, 2011·23 cites·29 claims
- 1691US7876895B2System, method, and service for performing unified broadcast encryption and traitor tracing for digital contentIBM·Filed 2007·Granted Jan 25, 2011·10 cites·9 claims
- 1791US7747877B2Tamper-resistant trusted Java virtual machine and method of using the sameIBM·Filed 2009·Granted Jun 29, 2010·27 cites·21 claims
- 1890US7010125B2Method for tracing traitor receivers in a broadcast encryption systemIBM·Filed 2001·Granted Mar 7, 2006·49 cites·21 claims
- 1990US6832319B1Content guard system for copy protection of recordable mediaIBM·Filed 1999·Granted Dec 14, 2004·153 cites·32 claims
- 2088US7831043B2System and method for cryptographically authenticating data itemsIBM·Filed 2006·Granted Nov 9, 2010·9 cites·21 claims
- 2188US6947563B2Method for assigning encryption keysIBM·Filed 2001·Granted Sep 20, 2005·22 cites·32 claims
- 2287US7380137B2Content guard system for copy protection of recordable mediaIBM·Filed 2004·Granted May 27, 2008·20 cites·6 claims
- 2386US7356147B2Method, system and program product for attaching a title key to encrypted content for synchronized transmission to a recipientIBM·Filed 2002·Granted Apr 8, 2008·41 cites·7 claims
- 2486US6888944B2Method for assigning encryption keysIBM·Filed 2001·Granted May 3, 2005·30 cites·24 claims
- 2585US7155591B2Verifying the integrity of a media key block by storing validation data in the validation area of mediaINTEL CORP·Filed 2004·Granted Dec 26, 2006·16 cites·11 claims
- 2685US6883097B1Coincidence-free media key block for content protection for recordable mediaIBM·Filed 2000·Granted Apr 19, 2005·35 cites·7 claims
- 2785US5978482AMethod and system for protection of digital informationIBM·Filed 1995·Granted Nov 2, 1999·41 cites·13 claims
- 2885US5913030AMethod and system for client/server communications with user information revealed as a function of willingness to reveal and whether the information is requiredIBM·Filed 1997·Granted Jun 15, 1999·87 cites·32 claims
- 2984US7685636B2System, service, and method for enabling authorized use of distributed content on a protected mediaIBM·Filed 2005·Granted Mar 23, 2010·15 cites·23 claims
- 3084US7092527B2Method, system and program product for managing a size of a key management block during content distributionIBM·Filed 2002·Granted Aug 15, 2006·17 cites·20 claims
- 3184US7007162B1Forensic media key block for identifying compromised keysIBM·Filed 2000·Granted Feb 28, 2006·17 cites·17 claims
- 3282US6038316AMethod and system for protection of digital informationIBM·Filed 1997·Granted Mar 14, 2000·93 cites·6 claims
- 3382US4377803AAlgorithm for the segmentation of printed fixed pitch documentsIBM·Filed 1980·Granted Mar 22, 1983·71 cites·18 claims
- 3481US9712321B2Unified broadcast encryption systemJIN HONGXIA·Filed 2008·Granted Jul 18, 2017·7 cites·4 claims
- 3580US8265275B2System and method for cryptographically authenticating data itemsLOTSPIECH JEFFREY B·Filed 2010·Granted Sep 11, 2012·5 cites·16 claims
- 3679US9866377B2Unified broadcast encryption systemIBM·Filed 2017·Granted Jan 9, 2018·2 cites·9 claims
- 3779US7734921B2System and method for guaranteeing software integrity via combined hardware and software authenticationIBM·Filed 2007·Granted Jun 8, 2010·6 cites·1 claims
- 3878US8656178B2Method, system and program product for modifying content usage conditions during content distributionFOSTER ERIC M·Filed 2002·Granted Feb 18, 2014·15 cites·24 claims
- 3978US8495755B2Tracing traitor coalitions and preventing piracy of digital content in a broadcast encryption systemJIN HONGXIA·Filed 2011·Granted Jul 23, 2013·3 cites·28 claims
- 4078US7249264B2Secure IP based streaming in a format independent mannerIBM·Filed 2002·Granted Jul 24, 2007·28 cites·20 claims
- 4177US9729316B2Unified broadcast encryption systemJIN HONGXIA·Filed 2008·Granted Aug 8, 2017·5 cites·2 claims
- 4277US7925025B2Method for broadcast encryption and key revocation of stateless receiversIBM·Filed 2008·Granted Apr 12, 2011·5 cites·49 claims
- 4377US7698551B2Method for broadcast encryption and key revocation of stateless receiversIBM·Filed 2005·Granted Apr 13, 2010·5 cites·1 claims
- 4476US9755836B2Identifying and locating authenticated services using broadcast encryptionBELLWOOD THOMAS A·Filed 2010·Granted Sep 5, 2017·4 cites·25 claims
- 4576US5946473ALFSR implementation using split-table lookupIBM·Filed 1997·Granted Aug 31, 1999·89 cites·30 claims
- 4675US9520993B2Renewable traitor tracingJIN HONGXIA·Filed 2005·Granted Dec 13, 2016·5 cites·20 claims
- 4775US8190918B2Interoperable digital rights managementARNAUD ROBERT·Filed 2006·Granted May 29, 2012·2 cites·10 claims
- 4875US8108928B2Adaptive traitor tracingJIN HONGXIA·Filed 2008·Granted Jan 31, 2012·6 cites·20 claims
- 4975US7305564B2System and method to proactively detect software tamperingIBM·Filed 2002·Granted Dec 4, 2007·17 cites·32 claims
- 5073US7975313B2System and method for tracing Tardos fingerprint codesIBM·Filed 2007·Granted Jul 5, 2011·5 cites·1 claims
Showing the top 50 of 101 patent records by PatentIndex Score.
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