Inventor · disambiguated record
Sik Piu Kwan
Also filed as: KWAN SIK P · KWAN SIK PIU
28 granted patents·7 pending applications·144 citations·filing 1986–2021
95Inventor score
Top patents by PatentIndex Score
35 records- 0188US10650368B2Pick list optimization methodNCR CORP·Filed 2017·Granted May 12, 2020·6 cites·17 claims
- 0286US8876001B2Methods and apparatus for image recognition in checkout verificationHERWIG NATHANIEL C·Filed 2007·Granted Nov 4, 2014·18 cites·8 claims
- 0381US10078827B2Item substitution fraud detectionNCR CORP·Filed 2015·Granted Sep 18, 2018·5 cites·17 claims
- 0479US10929675B2Decentralized video trackingNCR CORP·Filed 2018·Granted Feb 23, 2021·2 cites·19 claims
- 0577US9147095B2Optical code scanner optimized for reading 2D optical codesLI JUN·Filed 2013·Granted Sep 29, 2015·4 cites·19 claims
- 0677US8028916B2Methods and apparatus for positioning objects for scanning by a hybrid laser and imaging scannerNCR CORP·Filed 2007·Granted Oct 4, 2011·7 cites·16 claims
- 0777US6551738B2Electronic price label battery storage apparatus and replacement methodNCR CORP·Filed 2001·Granted Apr 22, 2003·15 cites·1 claims
- 0874US7893816B1High sensitivity radio frequency identification tagNCR CORP·Filed 2004·Granted Feb 22, 2011·19 cites·16 claims
- 0972US7286798B1Electronic shelf labelNCR CORP·Filed 2002·Granted Oct 23, 2007·7 cites·16 claims
- 1066US9870377B2Signal-to-noise ratio image validationKWAN SIK PIU·Filed 2014·Granted Jan 16, 2018·0 cites·14 claims
- 1166US9087248B2Method, system, and apparatus for a multiple path image scannerKWAN SIK PIU·Filed 2006·Granted Jul 21, 2015·3 cites·31 claims
- 1264US6367752B1Electronic price label mounting apparatusNCR CORP·Filed 1999·Granted Apr 9, 2002·27 cites·11 claims
- 1361US4717924AThermal printing control systemNCR CO·Filed 1986·Granted Jan 5, 1988·12 cites·28 claims
- 1458US10558703B2Signal-to-noise ratio image validationNCR CORP·Filed 2018·Granted Feb 11, 2020·0 cites·14 claims
- 1558US7556198B2Methods and apparatus for using noise data to enhance bar code scanning accuracyNCR CORP·Filed 2006·Granted Jul 7, 2009·1 cites·14 claims
- 1656US2009094140A1Methods and Apparatus for Inventory and Price Information ManagementNCR CORP·Filed 2007·Application pending·0 cites
- 1755US8186596B2Apparatus, method and system for selective reading of pixels from an image capture deviceKWAN SIK PIU·Filed 2008·Granted May 29, 2012·0 cites·13 claims
- 1855US4806948ARibbon separating mechanism for thermal printerNCR CO·Filed 1987·Granted Feb 21, 1989·9 cites·25 claims
- 1951US8584951B2Apparatus, method and system for extracting pixel data from an image capture deviceKWAN SIK PIU·Filed 2008·Granted Nov 19, 2013·0 cites·13 claims
- 2051US8254725B2Apparatus, method and system for elongating pixel dataKWAN SIK PIU·Filed 2009·Granted Aug 28, 2012·0 cites·21 claims
- 2151US7726574B2Method, device and system for scanning optical codesNCR CORP·Filed 2007·Granted Jun 1, 2010·0 cites·22 claims
- 2250US11587409B2Sanitizing self-service terminalNCR CORP·Filed 2021·Granted Feb 21, 2023·0 cites·20 claims
- 2350US8033468B2Apparatus, method and system for an image scanner with differential panningNCR CORP·Filed 2008·Granted Oct 11, 2011·0 cites·14 claims
- 2450US2010147951A1apparatus, method and system for reducing motion blur in an image capture deviceKWAN SIK PIU·Filed 2008·Application pending·0 cites
- 2548US2008283605A1Device and system for a low noise photodiode in a barcode scannerKWAN SIK PIU·Filed 2007·Application pending·0 cites
- 2648US2009160975A1Methods and Apparatus for Improved Image Processing to Provide Retroactive Image Focusing and Improved Depth of Field in Retail Imaging SystemsNCR CORP·Filed 2007·Application pending·0 cites
- 2747US2009152359A1Methods and Apparatus for Signals Exhibiting Improved Signal to Noise Ratio in Image Bar Code ScanningKWAN SIK PIU·Filed 2007·Application pending·0 cites
- 2847US2009140051A1Method, device and system for off optical axis illuminationKWAN SIK PIU·Filed 2007·Application pending·0 cites
- 2946US9330405B2Methods and apparatus for fast item identificationKWAN SIK PIU·Filed 2013·Granted May 3, 2016·0 cites·17 claims
- 3046US8953062B2Methods and apparatus for low resolution item identificationKWAN SIK PIU·Filed 2013·Granted Feb 10, 2015·0 cites·21 claims
- 3146US8567680B2Method, device and system for a laser bar code scanner with imaging assistROQUEMORE III JOHN P·Filed 2007·Granted Oct 29, 2013·0 cites·23 claims
- 3246US7264167B2Optical scanner having micro-electro-mechanical systems mirror array and associated methodNCR CORP·Filed 2004·Granted Sep 4, 2007·0 cites·35 claims
- 3345US2008142598A1Method, system, and apparatus for an electronic freeze frame shutter for a high pass-by image scannerKWAN SIK PIU·Filed 2006·Application pending·0 cites
- 3444US8584952B2Apparatus, system and method for extending the depth of field of an optical code scannerKWAN SIK PIU·Filed 2010·Granted Nov 19, 2013·0 cites·8 claims
- 3540US6317184B1Liquid crystal display with enhanced character visibilityNCR CORP·Filed 1999·Granted Nov 13, 2001·9 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →