Inventor · disambiguated record
Lawrence Tang
Also filed as: TANG LAWRENCE · TANG LAWRENCE W
25 granted patents·6 pending applications·258 citations·filing 1999–2022
95Inventor score
Files withGEN INSTRUMENT CORP10COMBINED CONDITIONAL ACCESS DEV AND SUPPORT LLC7COMBINED CONDITIONAL ACCESS DEV & SUPPORT LLC4TANG LAWRENCE W2CHEN ANNIE1
Top patents by PatentIndex Score
31 records- 0192US7257227B2System for denying access to content generated by a compromised off line encryption device and for conveying cryptographic keys from multiple conditional access systemsGEN INSTRUMENT CORP·Filed 2001·Granted Aug 14, 2007·72 cites·4 claims
- 0290US9930390B2Control word and associated entitlement control message caching and reuseCOMBINED CONDITIONAL ACCESS DEV AND SUPPORT LLC·Filed 2016·Granted Mar 27, 2018·11 cites·20 claims
- 0390US7076661B2System for denying access to content generated by a compromised off line encryption device and for conveying cryptographic keys from multiple conditional access systemsGEN INSTRUMENT CORP·Filed 2005·Granted Jul 11, 2006·17 cites·5 claims
- 0486US11552786B2System and method for authenticating data while minimizing bandwidthCOMBINED CONDITIONAL ACCESS DEV AND SUPPORT LLC·Filed 2020·Granted Jan 10, 2023·2 cites·28 claims
- 0583US6978022B2System for securing encryption renewal system and for registration and remote activation of encryption deviceGEN INSTRUMENT CORP·Filed 2001·Granted Dec 20, 2005·28 cites·24 claims
- 0674US11418364B2Determining a session key using session dataCOMBINED CONDITIONAL ACCESS DEV & SUPPORT LLC·Filed 2017·Granted Aug 16, 2022·2 cites·20 claims
- 0774US11418339B2Preservation of encryptionCOMBINED CONDITIONAL ACCESS DEV & SUPPORT LLC·Filed 2014·Granted Aug 16, 2022·4 cites·36 claims
- 0874US8958550B2Encryption operation with real data rounds, dummy data rounds, and delay periodsTANG LAWRENCE W·Filed 2011·Granted Feb 17, 2015·5 cites·20 claims
- 0971US7305555B2Smart card mating protocolGEN INSTRUMENT CORP·Filed 2002·Granted Dec 4, 2007·11 cites·17 claims
- 1070US10944579B2Device pairing and authenticationCOMBINED CONDITIONAL ACCESS DEV AND SUPPORT LLC·Filed 2017·Granted Mar 9, 2021·1 cites·24 claims
- 1170US8792637B2Downloading of data to secure devicesTANG LAWRENCE W·Filed 2011·Granted Jul 29, 2014·1 cites·21 claims
- 1268US10375030B2Initialization encryption for streaming contentCOMBINED CONDITIONAL ACCESS DEV & SUPPORT LLC CCAD LLC·Filed 2016·Granted Aug 6, 2019·2 cites·19 claims
- 1367US8385555B2Content delivery with segmented key listCOMBINED CONDITIONAL ACCESS DEV AND SUPPORT LLC·Filed 2008·Granted Feb 26, 2013·3 cites·18 claims
- 1466US11671279B2Determining a session key using session dataCOMBINED CONDITIONAL ACCESS DEV AND SUPPORT LLC·Filed 2022·Granted Jun 6, 2023·0 cites·28 claims
- 1564US11750576B2Initialization encryption for streaming contentCOMBINED CONDITIONAL ACCESS DEV AND SUPPORT LLC·Filed 2021·Granted Sep 5, 2023·0 cites·20 claims
- 1664US11115201B2Downloading of data to secure devicesCOMBINED CONDITIONAL ACCESS DEV & SUPPORT LLC·Filed 2014·Granted Sep 7, 2021·0 cites·22 claims
- 1762US10797864B2System and method for authenticating data while minimizing bandwidthTANG LAWRENCE·Filed 2011·Granted Oct 6, 2020·2 cites·20 claims
- 1861US6804782B1Countermeasure to power attack and timing attack on cryptographic operationsGEN INSTRUMENT CORP·Filed 1999·Granted Oct 12, 2004·50 cites·22 claims
- 1961US6711684B1Variable security code download for an embedded processorGEN INSTRUMENT CORP·Filed 1999·Granted Mar 23, 2004·39 cites·29 claims
- 2060US7764793B2Method to leverage a secure device to grant trust and identity to a second deviceGEN INSTRUMENT CORP·Filed 2005·Granted Jul 27, 2010·2 cites·15 claims
- 2159US11108743B2Initialization encryption for streaming contentCOMBINED CONDITIONAL ACCESS DEV & SUPPORT LLC·Filed 2019·Granted Aug 31, 2021·0 cites·20 claims
- 2255US9531778B2Message rate mixing for bandwidth managementCOMBINED CONDITIONAL ACCESS DEV AND SUPPORT LLC (CCAD LLC)·Filed 2014·Granted Dec 27, 2016·1 cites·20 claims
- 2354US7929483B2Method and apparatus for providing a secure system timeGEN INSTRUMENT CORP·Filed 2004·Granted Apr 19, 2011·3 cites·16 claims
- 2451US9473463B2Control word and associated entitlement control message caching and reuseCOMBINED CONDITIONAL ACCESS DEV AND SUPPORT LLC·Filed 2014·Granted Oct 18, 2016·0 cites·20 claims
- 2547US8156560B2Method and apparatus for providing a border guard between security domainsOKIMOTO JOHN I·Filed 2004·Granted Apr 10, 2012·2 cites·15 claims
- 2644US2008101614A1Method and Apparatus for Providing Secured Content DistributionGEN INSTRUMENT CORP·Filed 2007·Application pending·0 cites
- 2743US2006159264A1System for denying access to content generated by a compromised off line encryption device and for conveying cryptographic keys from multiple conditional access systemsCHEN ANNIE O·Filed 2005·Application pending·0 cites
- 2842US2006069645A1Method and apparatus for providing secured content distributionCHEN ANNIE·Filed 2005·Application pending·0 cites
- 2940US2004083177A1Method and apparatus for pre-encrypting VOD material with a changing cryptographic keyGEN INSTRUMENT CORP·Filed 2002·Application pending·0 cites
- 3036US2002083438A1System for securely delivering encrypted content on demand with access contrlFiled 2001·Application pending·0 cites
- 3124US2011321024A1Method and apparatus for updating an executing applicationKNOTHE DENNIS·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →