Assignee
FAN ZHIGANG
US·46 granted patents·6 pending applications·281 citations·filing 1998–2023
Top patents by PatentIndex Score
52 records- 0196US9014432B2License plate character segmentation using likelihood maximizationFAN ZHIGANG·Filed 2012·Granted Apr 21, 2015·58 cites·20 claims
- 0295US8792682B2Method and system for identifying a license plateFAN ZHIGANG·Filed 2011·Granted Jul 29, 2014·41 cites·16 claims
- 0392US8462394B2Document type classification for scanned bitmapsFAN ZHIGANG·Filed 2008·Granted Jun 11, 2013·16 cites·19 claims
- 0488US9100576B2Camera positioning tool for symbology readingFAN ZHIGANG·Filed 2012·Granted Aug 4, 2015·8 cites·19 claims
- 0585US8550367B2System and method for embedding machine-readable codes in combination with other images such as logosFAN ZHIGANG·Filed 2012·Granted Oct 8, 2013·8 cites·20 claims
- 0685US8265498B2Method and apparatus for determining media thickness in a feeder section of an image production deviceFAN ZHIGANG·Filed 2009·Granted Sep 11, 2012·7 cites·21 claims
- 0785US8056821B2Security marks simulating natural defects for embedding information in documentsFAN ZHIGANG·Filed 2006·Granted Nov 15, 2011·6 cites·24 claims
- 0884US8159720B2Color error diffusionFAN ZHIGANG·Filed 2005·Granted Apr 17, 2012·8 cites·20 claims
- 0982US8830533B2System and method for creating machine-readable codes in combination with other images such as logosFAN ZHIGANG·Filed 2012·Granted Sep 9, 2014·6 cites·17 claims
- 1082US8531733B2Image processing system with electronic book reader modeFAN ZHIGANG·Filed 2010·Granted Sep 10, 2013·5 cites·15 claims
- 1182US8500026B2Dual resolution two-dimensional barcodeFAN ZHIGANG·Filed 2011·Granted Aug 6, 2013·6 cites·17 claims
- 1282US8483440B2Methods and systems for verifying automatic license plate recognition resultsFAN ZHIGANG·Filed 2011·Granted Jul 9, 2013·9 cites·17 claims
- 1381US9052329B2Tire detection for accurate vehicle speed estimationFAN ZHIGANG·Filed 2012·Granted Jun 9, 2015·4 cites·18 claims
- 1481US8224019B2Embedding information in document blank spaceFAN ZHIGANG·Filed 2007·Granted Jul 17, 2012·6 cites·23 claims
- 1580US9900519B2Image capture by scene classificationFAN ZHIGANG·Filed 2016·Granted Feb 20, 2018·3 cites·20 claims
- 1679US8605189B2Product identification using mobile deviceFAN ZHIGANG·Filed 2012·Granted Dec 10, 2013·7 cites·20 claims
- 1779US8139270B2Variable data periodic line patterns for composing a font systemFAN ZHIGANG·Filed 2007·Granted Mar 20, 2012·2 cites·21 claims
- 1878US9367966B2Smartphone augmented video-based on-street parking management systemFAN ZHIGANG·Filed 2012·Granted Jun 14, 2016·4 cites·17 claims
- 1978US8611608B2Front seat vehicle occupancy detection via seat pattern recognitionFAN ZHIGANG·Filed 2011·Granted Dec 17, 2013·7 cites·6 claims
- 2076US8477371B2Color lookup table generation which minimizes interpolation errors over the entire color space of a color gamutFAN ZHIGANG·Filed 2010·Granted Jul 2, 2013·3 cites·18 claims
- 2176US8335342B2Protecting printed items intended for public exchange with information embedded in blank document bordersFAN ZHIGANG·Filed 2008·Granted Dec 18, 2012·4 cites·18 claims
- 2276US8243982B2Embedding information in document border spaceFAN ZHIGANG·Filed 2008·Granted Aug 14, 2012·1 cites·30 claims
- 2376US8237964B2Print job scheduling for processing print jobs based on user set delay criteriaFAN ZHIGANG·Filed 2009·Granted Aug 7, 2012·9 cites·15 claims
- 2475USD782603SStun gun with flashlightFAN ZHIGANG·Filed 2015·Granted Mar 28, 2017·16 cites·1 claims
- 2574US8807442B2System and method for embedding machine-readable codes in a document backgroundFAN ZHIGANG·Filed 2012·Granted Aug 19, 2014·3 cites·20 claims
- 2671USD783118SStun gun with flashlightFAN ZHIGANG·Filed 2015·Granted Apr 4, 2017·13 cites·1 claims
- 2770US8860979B2Deletion of unwanted reply messages in e-mail printingFAN ZHIGANG·Filed 2009·Granted Oct 14, 2014·2 cites·16 claims
- 2868US8086040B2Text representation method and apparatusFAN ZHIGANG·Filed 2007·Granted Dec 27, 2011·2 cites·17 claims
- 2966US9020200B2Geometric pre-correction for automatic license plate recognitionFAN ZHIGANG·Filed 2012·Granted Apr 28, 2015·3 cites·18 claims
- 3064US8204306B2Method for image segmentation based on block clustering for improved processing of touching charactersFAN ZHIGANG·Filed 2006·Granted Jun 19, 2012·1 cites·20 claims
- 3162US8774450B2Unauthorized text alteration prevention with contour following background patternsFAN ZHIGANG·Filed 2011·Granted Jul 8, 2014·1 cites·25 claims
- 3261US8888010B2Detection of security marks simulating natural defects for embedding information in documentsFAN ZHIGANG·Filed 2011·Granted Nov 18, 2014·0 cites·24 claims
- 3360US8619340B2Augmenting page orientation direction detection in a digital document processing environmentFAN ZHIGANG·Filed 2010·Granted Dec 31, 2013·2 cites·16 claims
- 3458US8244038B2Text vectorization using OCR and stroke structure modelingFAN ZHIGANG·Filed 2008·Granted Aug 14, 2012·3 cites·14 claims
- 3557US8482807B2Embedding information using modulated periodic line patternsFAN ZHIGANG·Filed 2009·Granted Jul 9, 2013·1 cites·13 claims
- 3657US2025100453A1Storage box under central control screenFAN ZHIGANG·Filed 2023·Application pending·0 cites
- 3756US8660373B2PDF de-chunking and object classificationFAN ZHIGANG·Filed 2008·Granted Feb 25, 2014·1 cites·21 claims
- 3854US8305636B2Undercolor removal gray color replacement with improved device color linearityFAN ZHIGANG·Filed 2009·Granted Nov 6, 2012·0 cites·20 claims
- 3954US8294952B2Memory efficient hierarchical error diffusion with color consistency constraintsFAN ZHIGANG·Filed 2009·Granted Oct 23, 2012·0 cites·20 claims
- 4052US8754909B2Method and system for utilizing transformation matrices to process rasterized image dataFAN ZHIGANG·Filed 2008·Granted Jun 17, 2014·0 cites·34 claims
- 4150US9033371B2Counterfeit prevention using miniature security marksFAN ZHIGANG·Filed 2005·Granted May 19, 2015·0 cites·11 claims
- 4250US2015178896A1Image processing and enhancement methods and associated display systemsFAN ZHIGANG·Filed 2014·Application pending·0 cites
- 4350US2015184628A1Fobless keyless vehicle entry and ingnition methodand systemFAN ZHIGANG·Filed 2014·Application pending·0 cites
- 4446US8200043B2Page orientation detection based on selective character recognitionFAN ZHIGANG·Filed 2008·Granted Jun 12, 2012·0 cites·15 claims
- 4546US8180164B2OCR-guided text tokenization of digital imagesFAN ZHIGANG·Filed 2008·Granted May 15, 2012·0 cites·15 claims
- 4641US2013286198A1Method and system for automatically detecting anomalies at a traffic intersectionFAN ZHIGANG·Filed 2012·Application pending·0 cites
- 4740USD744059SPortable battery stun gun device with flashlightFAN ZHIGANG·Filed 2014·Granted Nov 24, 2015·3 cites·1 claims
- 4840US9076251B2Component specific image modification using natural language colorFAN ZHIGANG·Filed 2010·Granted Jul 7, 2015·0 cites·23 claims
- 4940US2016078696A1Access method and system with wearable controllerFAN ZHIGANG·Filed 2015·Application pending·0 cites
- 5039US8441684B2Between-segment discontinuity reduction for text vectorization using dominant point classificationFAN ZHIGANG·Filed 2009·Granted May 14, 2013·0 cites·14 claims
Showing the top 50 of 52 patent records by PatentIndex Score.
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