Inventor · disambiguated record
Xi Tao
Also filed as: RUSSELL GARRETT · TAO XI
75 granted patents·3 pending applications·2,753 citations·filing 2003–2020
99Inventor score
Top patents by PatentIndex Score
78 records- 0199US7128266B2Hand-supportable digital imaging-based bar code symbol reader supporting narrow-area and wide-area modes of illumination and image captureMETROLOGIC INSTR INC·Filed 2003·Granted Oct 31, 2006·785 cites·8 claims
- 0298US9342723B2Encoded information reading terminal with multiple imaging assembliesHONEYWELL INT INC·Filed 2013·Granted May 17, 2016·130 cites·20 claims
- 0398US9135483B2Terminal having image data format conversionLIU YONG·Filed 2011·Granted Sep 15, 2015·130 cites·17 claims
- 0498US9111159B2Imaging based barcode scanner engine with multiple elements supported on a common printed circuit boardLIU YONG·Filed 2011·Granted Aug 18, 2015·131 cites·20 claims
- 0598US9098763B2Encoded information reading terminal with replaceable imaging assemblyLU JUN·Filed 2012·Granted Aug 4, 2015·129 cites·16 claims
- 0697US7513430B2Digital image capturing and processing system employing an area-type image sensing array exposed to narrow-band illumination from a narrow-band illumination subsystem for a time duration controlled using a photodetector operated independently from said area-type image sensing arrayMETROLOGIC INSTR INC·Filed 2006·Granted Apr 7, 2009·36 cites·28 claims
- 0797US7503499B2Digital image capturing and processing system producing narrow-band illumination when image sensor elements in a state of integration, and simultaneously detecting narrow-band illumination using an area-type image sensor and independently-operated photo-detectorMETROLOGIC INSTR INC·Filed 2006·Granted Mar 17, 2009·36 cites·31 claims
- 0897US7490778B2Method of reading code symbols using a hand-supportable digital image capturing and processing device employing a micro-computing platform supporting an event-driven multi-tier modular software architectureMETROLOGIC INSTR INC·Filed 2006·Granted Feb 17, 2009·43 cites·15 claims
- 0997US7086595B2Method of and apparatus for processing captured digital images of objects within a semi-automatic hand-supportable imaging-based bar code symbol reader so as to read 1d and/or 2d bar code symbols graphically represented thereinMETROLOGIC INSTR INC·Filed 2004·Granted Aug 8, 2006·80 cites·28 claims
- 1096US7775436B2Method of driving a plurality of visible and invisible LEDs so as to produce an illumination beam having a dynamically managed ratio of visible to invisible (IR) spectral energy/power during object illumination and imaging operationsMETROLOGIC INSTR INC·Filed 2007·Granted Aug 17, 2010·41 cites·4 claims
- 1196US7681799B2Method of reading code symbols using a digital image capturing and processing system employing a micro-computing platform with an event-driven multi-tier software architectureMETROLOGIC INSTR INC·Filed 2007·Granted Mar 23, 2010·35 cites·20 claims
- 1296US7527206B2Method of setting the time duration of illumination from an LED-based illumination array employed in a digital imaging-based code symbol reader, using an image-processing based illumination metering program executed therewithinMETROLOGIC INSTR INC·Filed 2006·Granted May 5, 2009·37 cites·28 claims
- 1396US7240844B2Hand-suportable imaging-based bar code symbol reader employing an automatic light exposure measurement and illumination control subsystem for measuring illumination exposure on CMOS image sensing array and controlling LED illumination array driver circuitryMETROLOGIC INSTR INC·Filed 2004·Granted Jul 10, 2007·70 cites·9 claims
- 1495US7281661B2Hand-supportable digital imaging-based bar code symbol reading system employing a method of intelligently illuminating an object so as to generate a digital image thereof which is substantially free of noise caused by specular-type reflectionMETROLOGIC INSTR INC·Filed 2004·Granted Oct 16, 2007·55 cites·25 claims
- 1594US7546952B2Method of illuminating objects during digital image capture operations by mixing visible and invisible spectral illumination energy at point of sale (POS) environmentsMETROLOGIC INSTR INC·Filed 2007·Granted Jun 16, 2009·30 cites·6 claims
- 1694US7490774B2Hand-supportable imaging based bar code symbol reader employing automatic light exposure measurement and illumination control subsystem integrated thereinMETROLOGIC INSTR INC·Filed 2004·Granted Feb 17, 2009·63 cites·10 claims
- 1794US7320431B2Digital imaging-based bar code symbol reading system employing a multi-mode illumination subsystem with far-field and near field led-based illumination arraysMETROLOGIC INSTR INC·Filed 2004·Granted Jan 22, 2008·42 cites·19 claims
- 1894US7237722B2Hand-supported imaging-based bar code symbol reader employing a multi-mode image-processing based bar code reading subsystem with modular image-processing architectureMETROLOGIC INSTR INC·Filed 2004·Granted Jul 3, 2007·42 cites·42 claims
- 1994US7185817B2Hand-supportable digital imaging-based bar codes symbol reader employing multi-mode subsystemsMETROLOGIC INSTR INC·Filed 2004·Granted Mar 6, 2007·47 cites·9 claims
- 2093US9424454B2Chip on board based highly integrated imagerHONEYWELL INT INC·Filed 2013·Granted Aug 23, 2016·18 cites·13 claims
- 2193US9082031B2Package-on-package based integrated circuit chip imagerHONEYWELL INT INC·Filed 2013·Granted Jul 14, 2015·16 cites·15 claims
- 2293US7954719B2Tunnel-type digital imaging-based self-checkout system for use in retail point-of-sale environmentsMETROLOGIC INSTR INC·Filed 2007·Granted Jun 7, 2011·38 cites·7 claims
- 2393US7588188B2Pos-based digital image capturing and processing system using automatic object detection, spectral-mixing based illumination and linear imaging techniquesMETROLOGIC INSTR INC·Filed 2007·Granted Sep 15, 2009·23 cites·7 claims
- 2493US7588190B2Digital-imaging code symbol reading system supporting automatic programming of system parameters for automatic configuration of said system in hands-on and hands-free modes of operationMETROLOGIC INSTR INC·Filed 2006·Granted Sep 15, 2009·15 cites·17 claims
- 2593US7360706B2Hand-supportable imaging-based auto-discriminating 1D/2D bar code symbol reader employing a multi-mode image processing bar code symbol reading subsystem having a plurality of modes of operation which are dynamically reconfigurable in response to real-time image analysisMETROLOGIC INSTR INC·Filed 2004·Granted Apr 22, 2008·39 cites·18 claims
- 2693US7357325B2Hand-supportable imaging-based bar code symbol reader employing a CMOS-type image sensor using global exposure techniquesMETROLOGIC INSTR INC·Filed 2004·Granted Apr 15, 2008·39 cites·8 claims
- 2793US7273180B2Hand-supportable imaging-based bar code symbol reader having a multi-mode bar code symbol image processor dynamically reconfigurable in response to real-time image processing operations carried out on captured imagesMETROLOGIC INSTR INC·Filed 2004·Granted Sep 25, 2007·41 cites·20 claims
- 2893US7255279B2Hand-supportable digital imaging-based bar code reading system wherein, during each imaging cycle, a single frame of pixel data is automatically detected by a CMOS area-type image sensing array when substantially all rows of pixels therein are in a state of integration and have a common integration time, and then pixel data is transmitted from said CMOS area-type image sensing array into a FIFO buffer, and then mapped into memory for subsequent image processingMETROLOGIC INSTR INC·Filed 2004·Granted Aug 14, 2007·37 cites·16 claims
- 2992US7806335B2Digital image capturing and processing system for automatically recognizing objects in a POS environmentMETROLOGIC INSTR INC·Filed 2007·Granted Oct 5, 2010·22 cites·8 claims
- 3092US7503498B2Hand-supportable digital image capturing and processing system employing an area-type image sensing array exposed to illumination from an LED-based illumination array only when all sensor elements in said image-sensing array are activated and in a state of integrationMETROLOGIC INSTR INC·Filed 2006·Granted Mar 17, 2009·14 cites·11 claims
- 3192US7428998B2Automatic hand-supportable image-based bar code symbol reader having image-processing based bar code reading subsystem employing simple decode image processing operations applied in an outwardly-directed manner referenced from the center of a captured narrow-area digital image of an object bearing a 1D bar code symbolMETROLOGIC INSTR INC·Filed 2004·Granted Sep 30, 2008·34 cites·8 claims
- 3292US7178733B2Hand-supportable imaging-based bar code symbol reader employing automatic object presence and range detection to control the generation of near-field and far-field wide-area illumination during bar code symbol imaging operationsMETROLOGIC INSTR INC·Filed 2004·Granted Feb 20, 2007·32 cites·4 claims
- 3391US8042740B2Method of reading bar code symbols on objects at a point-of-sale station by passing said objects through a complex of stationary coplanar illumination and imaging planes projected into a 3D imaging volumeMETROLOGIC INSTR INC·Filed 2007·Granted Oct 25, 2011·19 cites·9 claims
- 3491US7575170B2POS-based digital image capturing and processing system using automatic object detection, spectral-mixing based illumination and linear imaging techniquesMETROLOGIC INSTR INC·Filed 2007·Granted Aug 18, 2009·21 cites·7 claims
- 3591US7267282B2Hand-supportable imaging-based bar code symbol reader capable of exposing an automatically detected object to a field of narrow-band LED-based illumination only when substantially all rows of pixels in a CMOS image sensing array are in a state of integrationMETROLOGIC INSTR INC·Filed 2004·Granted Sep 11, 2007·29 cites·5 claims
- 3691US7225989B2Method of performing auto-discrimination of 1D/2D bar code symbologies in a semi-automatic hand-supportable imaging-based bar code symbol reader having narrow-area and wide-area image capture modes of operationMETROLOGIC INSTR INC·Filed 2004·Granted Jun 5, 2007·29 cites·6 claims
- 3791US7188770B2Hand-supportable semi-automatic imaging-based bar code reading system wherein an led-based illumination subsystem automatically illuminates a detected target object in a narrow-area field of illumination, and illuminates the detected target object in a wide-area field of illumination upon manual activation of a trigger switchMETROLOGIC INSTR INC·Filed 2004·Granted Mar 13, 2007·31 cites·25 claims
- 3890US7637433B1Digital image capture and processing system employing a micro-computing platform with an event-driven multi-tier modular software architecture and supporting an image-processing based illumination metering program for automatically adjusting illumination during object illumination and imaging operationsMETROLOGIC INSTR INC·Filed 2007·Granted Dec 29, 2009·15 cites·24 claims
- 3990US7571858B2POS-based digital image capturing and processing system using automatic object detection, spectral-mixing based illumination and linear imaging techniquesMETROLOGIC INSTRUEMTNS INC·Filed 2007·Granted Aug 11, 2009·23 cites·10 claims
- 4089US7614560B2Method of illuminating objects at a point of sale (POS) station by adaptively controlling the spectral composition of the wide-area illumination beam produced from an illumination subsystem within an automatic digital image capture and processing systemMETROLOGIC INSTR INC·Filed 2007·Granted Nov 10, 2009·16 cites·9 claims
- 4189US7604175B2Method of reading bar code symbols using a digital-imaging based code symbol reading system employing an event-driven multi-tier modular software architecture and supporting automatic operating system login and loading of bar code symbol reading applicationMETROLOGIC INSTR INC·Filed 2007·Granted Oct 20, 2009·8 cites·12 claims
- 4289US7278575B2Hand-supportable image-based bar code symbol reader employing helically-sweeping feature-extraction analysis on a captured digital image of an object referenced from the center thereofMETROLOGIC INSTR INC·Filed 2004·Granted Oct 9, 2007·24 cites·6 claims
- 4389US7213762B2Hand-supportable imaging-based bar code symbol reader employing a CMOS-type image sensing array in combination with a band-pass optical filter subsystem, narrow-band illumination subsystem, and automatic light exposure measurement and illumination control subsystemMETROLOGIC INSTR INC·Filed 2004·Granted May 8, 2007·23 cites·5 claims
- 4486US7216810B2Hand-supportable multi-mode digital imaging-based bar code symbol reader employing an automatic illumination and exposure control subsystem that automatically controls the operation of a multi-mode led-based illumination subsystem so that detected objects are sufficiently illuminated and good quality digital images thereof are formed and detectedMETROLOGIC INSTR INC·Filed 2004·Granted May 15, 2007·17 cites·5 claims
- 4585US7731091B2Digital image capturing and processing system employing automatic object detection and spectral-mixing based illumination techniquesMETROLOGIC INSTR INC·Filed 2007·Granted Jun 8, 2010·10 cites·8 claims
- 4685US7611064B2Digital image capture and processing system having automatic illumination measurement and control capabilities realized using a photodetector operating independently of the image sensing array, and an image-processing based illumination metering program for automatically adjusting the illumination duration of the system during object illumination and imaging operationsMETROLOGIC INSTR INC·Filed 2006·Granted Nov 3, 2009·9 cites·15 claims
- 4785US7243847B2Digital imaging-based bar code symbol reader employing an LED-based illumination subsystem driven by an automatic light exposure measurement and illumination control subsystemMETROLOGIC INSTR INC·Filed 2004·Granted Jul 17, 2007·15 cites·9 claims
- 4883US7878407B2POS-based digital image capturing and processing system employing automatic object motion detection and spectral-mixing based illumination techniquesMETROLOGIC INSTR INC·Filed 2007·Granted Feb 1, 2011·9 cites·10 claims
- 4982US7293714B2Hand-supportable digital imaging-based bar code symbol reading system automatically processing captured images along parallel virtual scan lines based on the maximum pixel height of the region of interest (ROI)METROLOGIC INSTR INC·Filed 2004·Granted Nov 13, 2007·12 cites·8 claims
- 5082US7284705B2Hand-supportable semi-automatic digital imaging-based bar code symbol reading system realized upon a multi-tier modular software platformMETROLOGIC INSTR INC·Filed 2004·Granted Oct 23, 2007·12 cites·24 claims
Showing the top 50 of 78 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Xi Tao files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →