Inventor · disambiguated record
David Tsi Shi
Also filed as: SHI DAVID · SHI DAVID T · SHI DAVID TSI
45 granted patents·14 pending applications·768 citations·filing 2002–2024
98Inventor score
Files withSYMBOL TECHNOLOGIES INC28ZEBRA TECH CORP15SYMBOL TECHNOLOGIES LLC5GUREVICH VLADIMIR2VINOGRADOV IGOR2
Top patents by PatentIndex Score
59 records- 0196US7021542B2Imaging and illumination engine for an optical code readerSYMBOL TECHNOLOGIES INC·Filed 2003·Granted Apr 4, 2006·190 cites·16 claims
- 0295US11790197B2Miniature long range imaging engine with auto-focus, auto-zoom, and auto-illumination systemZEBRA TECH CORP·Filed 2021·Granted Oct 17, 2023·3 cites·37 claims
- 0395US11775783B1Compact opto-mechanical layout of long-range dual-camera bar-code imagerZEBRA TECH CORP·Filed 2022·Granted Oct 3, 2023·4 cites·20 claims
- 0495US9185306B1Imaging module and reader for, and method of, illuminating and imaging targets to be read over an extended range of working distancesSYMBOL TECHNOLOGIES INC·Filed 2014·Granted Nov 10, 2015·30 cites·20 claims
- 0594US7044377B2Plug-and-play imaging and illumination engine for an optical code readerSYMBOL TECHNOLOGIES INC·Filed 2003·Granted May 16, 2006·149 cites·29 claims
- 0691US7331524B2Feedback mechanism for scanner devicesSYMBOL TECHNOLOGIES INC·Filed 2005·Granted Feb 19, 2008·28 cites·26 claims
- 0791US7201318B2Optical adjustment for increased working range and performance in electro-optical readersSYMBOL TECHNOLOGIES INC·Filed 2004·Granted Apr 10, 2007·52 cites·19 claims
- 0889US7180052B1Non-heavy metal optical bandpass filter in electro-optical readersSYMBOL TECHNOLOGIES INC·Filed 2005·Granted Feb 20, 2007·20 cites·20 claims
- 0988US9202094B1Aiming pattern shape as distance sensor for barcode scannerSYMBOL TECHNOLOGIES INC·Filed 2014·Granted Dec 1, 2015·15 cites·20 claims
- 1087US9798912B1Imaging module and reader for, and method of, reading targets by image capture with a substantially constant resolution over an extended range of working distancesSYMBOL TECHNOLOGIES LLC·Filed 2016·Granted Oct 24, 2017·5 cites·20 claims
- 1187US7140546B1Battery pack with integrated human interface devicesSYMBOL TECHNOLOGIES INC·Filed 2002·Granted Nov 28, 2006·43 cites·37 claims
- 1285US11934911B2Laser driving mode for aiming system of barcode imagerZEBRA TECH CORP·Filed 2021·Granted Mar 19, 2024·1 cites·30 claims
- 1384US7025273B2Miniature auto focus voice coil actuator systemSYMBOL TECHNOLOGIES INC·Filed 2003·Granted Apr 11, 2006·42 cites·26 claims
- 1483US7494065B2Optical code reader system and method for control of illumination for aiming and exposureSYMBOL TECHNOLOGIES INC·Filed 2005·Granted Feb 24, 2009·13 cites·12 claims
- 1582US6811085B2Miniature imagerSYMBOL TECHNOLOGIES INC·Filed 2002·Granted Nov 2, 2004·19 cites·10 claims
- 1680US7063261B2Electro-optical reader with improved laser intensity modulation over extended working rangeSYMBOL TECHNOLOGIES INC·Filed 2004·Granted Jun 20, 2006·24 cites·9 claims
- 1779US12327160B2Laser driving mode for aiming system of barcode imagerZEBRA TECH CORP·Filed 2024·Granted Jun 10, 2025·0 cites·23 claims
- 1877US7182260B2Aiming light pattern generator in imaging readers for electro-optically reading indiciaSYMBOL TECHNOLOGIES INC·Filed 2004·Granted Feb 27, 2007·24 cites·24 claims
- 1977US7040538B2Bar code reader including linear sensor array and hybrid camera and bar code readerSYMBOL TECHNOLOGIES INC·Filed 2002·Granted May 9, 2006·17 cites·6 claims
- 2077US6938824B2Decoding algorithm for laser scanning bar code readersSYMBOL TECHNOLOGIES INC·Filed 2002·Granted Sep 6, 2005·25 cites·10 claims
- 2176US2024192461A1Imaging Lens Check and Active Alignment Method to Maintain Consistent Rear Focusing Distance for an Autofocus LensZEBRA TECH CORP·Filed 2024·Application pending·0 cites
- 2274US8978982B2Aiming system for imaging scannerVINOGRADOV IGOR·Filed 2012·Granted Mar 17, 2015·3 cites·28 claims
- 2373US7224538B2Electro-optical reader with improved laser intensity modulation over extended working rangeSYMBOL TECHNOLOGIES INC·Filed 2006·Granted May 29, 2007·4 cites·9 claims
- 2471US12164994B2Compact opto-mechanical layout of long-range dual-camera bar-code imagerZEBRA TECH CORP·Filed 2023·Granted Dec 10, 2024·0 cites·19 claims
- 2571US6805295B2High speed laser scan module with folded beam pathSYMBOL TECHNOLOGIES LTD·Filed 2002·Granted Oct 19, 2004·19 cites·10 claims
- 2670US12417364B2Miniature long range imaging engine with auto-focus and auto-zoom systemZEBRA TECH CORP·Filed 2023·Granted Sep 16, 2025·0 cites·22 claims
- 2770US7743989B2Laser power control arrangements in electro-optical readersSYMBOL TECHNOLOGIES INC·Filed 2006·Granted Jun 29, 2010·4 cites·11 claims
- 2868US7500612B2Compact imaging lens assembly in imaging readerSYMBOL TECHNOLOGIES INC·Filed 2006·Granted Mar 10, 2009·3 cites·18 claims
- 2968US6820810B2Optical collector for improving sensor signal uniformity over a target scanSYMBOL TECHNOLOGIES INC·Filed 2002·Granted Nov 23, 2004·12 cites·8 claims
- 3067US11906806B2Imaging lens check and active alignment method to maintain consistent rear focusing distance for an autofocus lensZEBRA TECH CORP·Filed 2021·Granted Feb 20, 2024·0 cites·20 claims
- 3165US2024291238A1Vertical cavity surface emitting laser with integrated photodiodeZEBRA TECH CORP·Filed 2023·Application pending·0 cites
- 3261US6909080B2Arrangement for and method of imaging targets at plural focal planesSYMBOL TECHNOLOGIES INC·Filed 2002·Granted Jun 21, 2005·7 cites·9 claims
- 3357US12231756B2Compact long focal length auto-focus lens with actively aligned front compensatorZEBRA TECH CORP·Filed 2022·Granted Feb 18, 2025·0 cites·17 claims
- 3456US12050961B2Methods and apparatus for configuring reduced decode ranges for barcode scannersZEBRA TECH CORP·Filed 2022·Granted Jul 30, 2024·0 cites·20 claims
- 3553US12372737B2Autofocus optical arrangements and assemblies including voice coil motorsZEBRA TECH CORP·Filed 2020·Granted Jul 29, 2025·0 cites·16 claims
- 3653US12086678B2Compact diffractive optical element laser aiming systemZEBRA TECH CORP·Filed 2021·Granted Sep 10, 2024·0 cites·30 claims
- 3753USD485841SImaging moduleSYMBOL TECHNOLOGIES INC·Filed 2002·Granted Jan 27, 2004·8 cites·1 claims
- 3853US2008197199A1Battery pack with integrated human interface devicesSYMBOL TECHNOLOGIES INC·Filed 2008·Application pending·0 cites
- 3952USRE46984EFocus adjustment with actuator in imaging scannerSYMBOL TECHNOLOGIES LLC·Filed 2015·Granted Aug 7, 2018·0 cites·21 claims
- 4051US2011127334A1Mem auto-focusing systemSYMBOL TECHNOLOGIES INC·Filed 2009·Application pending·0 cites
- 4149US8348168B2Focus adjustment with liquid crystal device in imaging scannerSYMBOL TECHNOLOGIES INC·Filed 2010·Granted Jan 8, 2013·0 cites·15 claims
- 4248US10514524B2Imaging devices having progressive magnificationSYMBOL TECHNOLOGIES LLC·Filed 2017·Granted Dec 24, 2019·0 cites·22 claims
- 4348US2009302116A1Semi-zoom imaging optical systemSYMBOL TECHNOLOGIES INC·Filed 2008·Application pending·0 cites
- 4448US2022381955A1Moving front lens group mechanically located to fixed rear lens groupZEBRA TECH CORP·Filed 2021·Application pending·0 cites
- 4547US11960961B2Aiming patterns for auto-focus rolling shutter camera with dual imaging FOV and associated systemsZEBRA TECH CORP·Filed 2021·Granted Apr 16, 2024·0 cites·5 claims
- 4646US11105898B2Adaptive illumination system for 3D-time of flight sensorSYMBOL TECHNOLOGIES LLC·Filed 2017·Granted Aug 31, 2021·0 cites·14 claims
- 4746US2008037080A1Illumination arrangement for an imagerSPANO ROBERT·Filed 2006·Application pending·0 cites
- 4845US8167207B2Integrated optical exit windowSHI DAVID TSI·Filed 2008·Granted May 1, 2012·0 cites·10 claims
- 4945US2015371070A1Efficient optical illumination system and method for an imaging readerSYMBOL TECHNOLOGIES INC·Filed 2014·Application pending·0 cites
- 5045US2008023555A1Aperture stop in imaging readerBARKAN EDWARD·Filed 2006·Application pending·0 cites
Showing the top 50 of 59 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →