Inventor · disambiguated record
Lefan Zhong
Also filed as: ZHONG LEFAN
27 granted patents·4 pending applications·620 citations·filing 1997–2023
96Inventor score
Top patents by PatentIndex Score
31 records- 0197US6807308B2Multi-resolution image data management system and method based on tiled wavelet-like transform and sparse data codingZORAN CORP·Filed 2003·Granted Oct 19, 2004·112 cites·12 claims
- 0296US6549674B1Image compression based on tiled wavelet-like transform using edge and non-edge filtersPICSURF INC·Filed 2000·Granted Apr 15, 2003·94 cites·22 claims
- 0393US6031940ASystem and method for efficiently encoding video frame sequencesTERALOGIC INC·Filed 1997·Granted Feb 29, 2000·182 cites·44 claims
- 0492US7206451B2Multi-resolution image data management system and method based on tiled wavelet-like transform and distinct bitstreams for distinct groups of bit planesZORAN CORP·Filed 2005·Granted Apr 17, 2007·14 cites·8 claims
- 0586US6343155B1Memory saving wavelet-like image transform system and method for digital camera and other memory conservative applicationsPICSURF INC·Filed 2001·Granted Jan 29, 2002·26 cites·18 claims
- 0682US6978049B2Multi-resolution image data management system and method based on tiled wavelet-like transform and sparse data codingZORAN CORP·Filed 2004·Granted Dec 20, 2005·15 cites·18 claims
- 0779US8346831B1Systems and methods for computing mathematical functionsVIVANTE CORP·Filed 2006·Granted Jan 1, 2013·9 cites·14 claims
- 0878US6229926B1Memory saving wavelet-like image transform system and method for digital camera and other memory conservative applicationsPICSURF INC·Filed 1999·Granted May 8, 2001·50 cites·49 claims
- 0972US5949911ASystem and method for scalable coding of sparse data setsTERALOGIC INC·Filed 1997·Granted Sep 7, 1999·45 cites·30 claims
- 1070US8339406B2Variable-length coding data transfer interfacePRABHAKAR RAM·Filed 2009·Granted Dec 25, 2012·3 cites·21 claims
- 1168US6587507B1System and method for encoding video data using computationally efficient adaptive spline waveletsPICSURF INC·Filed 1998·Granted Jul 1, 2003·35 cites·12 claims
- 1266US9113162B2Dynamic packet size control for MPEG-4 data partition modePRABHAKAR RAM·Filed 2007·Granted Aug 18, 2015·2 cites·8 claims
- 1366US8073276B2De-ringing filter for decompressed video dataZHONG LEFAN·Filed 2007·Granted Dec 6, 2011·2 cites·8 claims
- 1461US9460525B2Tile-based compression and decompression for graphic applicationsVIVANTE CORP·Filed 2013·Granted Oct 4, 2016·2 cites·20 claims
- 1561US8660182B2MPEG motion estimation based on dual start pointsZHONG LEFAN·Filed 2003·Granted Feb 25, 2014·6 cites·29 claims
- 1660US11600243B2Display controller, display control method, and display control system for color space conversionVERISILICON HOLDINGS CO LTD·Filed 2021·Granted Mar 7, 2023·0 cites·13 claims
- 1753US12095981B2Visual lossless image/video fixed-rate compressionVERISILICON HOLDINGS CO LTD·Filed 2023·Granted Sep 17, 2024·0 cites·20 claims
- 1851US8427494B2Variable-length coding data transfer interfacePRABHAKAR RAM·Filed 2004·Granted Apr 23, 2013·2 cites·21 claims
- 1951US7792194B2MPEG artifacts post-processed filtering architectureZHONG LEFAN·Filed 2003·Granted Sep 7, 2010·5 cites·27 claims
- 2050US7920148B2Post-rendering anti-aliasing with a smoothing filterVIVANTE CORP·Filed 2007·Granted Apr 5, 2011·1 cites·6 claims
- 2150US2013091189A1Single datapath floating point implementation of RCP, SQRT, EXP and LOG functions and a low latency RCP based on the same techniquesVIVANTE CORP·Filed 2012·Application pending·0 cites
- 2248US9600236B2Systems and methods for computing mathematical functionsVIVANTE CORP·Filed 2014·Granted Mar 21, 2017·0 cites·18 claims
- 2346US2005111545A1Dynamic packet size control for MPEG-4 data partition modeFiled 2003·Application pending·0 cites
- 2445US9703530B2Systems and methods for computing mathematical functionsVIVANTE CORP·Filed 2015·Granted Jul 11, 2017·0 cites·20 claims
- 2545US8553046B2Thin-line detection apparatus and methodZHONG LEFAN·Filed 2007·Granted Oct 8, 2013·0 cites·20 claims
- 2643US9875084B2Calculating trigonometric functions using a four input dot product circuitVIVANTE CORP·Filed 2016·Granted Jan 23, 2018·0 cites·20 claims
- 2742US8554008B2Anti-aliasing system and methodZHONG LEFAN·Filed 2010·Granted Oct 8, 2013·0 cites·20 claims
- 2840US7747095B2Methods and systems for rate control in image compressionNVIDIA CORP·Filed 2004·Granted Jun 29, 2010·0 cites·25 claims
- 2938US6236762B1System and method for unified DCT and wavelet data codingPICSURF INC·Filed 1998·Granted May 22, 2001·15 cites·21 claims
- 3036US2014300628A1Tile-based compression and decompression for graphic applicationsVIVANTE CORP·Filed 2013·Application pending·0 cites
- 3132US2018217814A1Systems And Methods For Computing Mathematical FunctionsVIVANTE CORP·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →