Inventor · disambiguated record
Songyang Yu
Also filed as: YU SONGYANG
9 granted patents·2 pending applications·48 citations·filing 2007–2022
86Inventor score
Files withYU SONGYANG4RAPISCAN SYSTEMS INC3ZHAN XIAONONG2KLA CORP1KONICA MINOLTA LABORATORY USA INC1
Top patents by PatentIndex Score
11 records- 0193US11287391B2Systems and methods for detecting threats and contraband in cargoRAPISCAN SYSTEMS INC·Filed 2020·Granted Mar 29, 2022·5 cites·21 claims
- 0292US10302807B2Systems and methods for detecting threats and contraband in cargoRAPISCAN SYSTEMS INC·Filed 2017·Granted May 28, 2019·20 cites·14 claims
- 0388US10768338B2Systems and methods for detecting threats and contraband in cargoRAPISCAN SYSTEMS INC·Filed 2019·Granted Sep 8, 2020·8 cites·20 claims
- 0479US8947736B2Method for binarizing scanned document images containing gray or light colored text printed with halftone patternYU SONGYANG·Filed 2010·Granted Feb 3, 2015·5 cites·21 claims
- 0574US9319556B2Method and apparatus for authenticating printed documents that contains both dark and halftone textZHAN XIAONONG·Filed 2011·Granted Apr 19, 2016·3 cites·16 claims
- 0670US8331670B2Method of detection document alteration by comparing characters using shape features of charactersYU SONGYANG·Filed 2011·Granted Dec 11, 2012·5 cites·38 claims
- 0758US8218879B2System and method for shutter detectionYU SONGYANG·Filed 2007·Granted Jul 10, 2012·2 cites·15 claims
- 0851US12266143B2Salient feature point based image alignmentKLA CORP·Filed 2022·Granted Apr 1, 2025·0 cites·19 claims
- 0949US9596378B2Method and apparatus for authenticating printed documents that contains both dark and halftone textKONICA MINOLTA LABORATORY USA INC·Filed 2016·Granted Mar 14, 2017·0 cites·16 claims
- 1047US2012275679A1System and method for shutter detectionYU SONGYANG·Filed 2012·Application pending·0 cites
- 1139US2013050765A1Method and apparatus for document authentication using image comparison on a block-by-block basisZHAN XIAONONG·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →