Inventor · Suzhou, CN

Xi Tao

75Patents
26h-index
44Co-inventors
84Inventor score

Filing activity: Nov 13, 2003 → Aug 4, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US7128266B2 Hand-supportable digital imaging-based bar code symbol reader supporting narrow-area and wide-area modes of illumination and image capture Physics 688 Expired
US9111159B2 Imaging based barcode scanner engine with multiple elements supported on a common printed circuit board Electricity 132 Active
US9135483B2 Terminal having image data format conversion Physics 130 Active
US9098763B2 Encoded information reading terminal with replaceable imaging assembly Electricity 130 Active
US9342723B2 Encoded information reading terminal with multiple imaging assemblies Physics 130 Active
US7086595B2 METHOD 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 THEREIN Physics 71 Expired
US7240844B2 Hand-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 circuitry Physics 62 Expired
US7490774B2 Hand-supportable imaging based bar code symbol reader employing automatic light exposure measurement and illumination control subsystem integrated therein Physics 58 Expired
US7281661B2 Hand-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 reflection Physics 55 Expired
US7185817B2 Hand-supportable digital imaging-based bar codes symbol reader employing multi-mode subsystems Physics 44 Expired
US7237722B2 Hand-supported imaging-based bar code symbol reader employing a multi-mode image-processing based bar code reading subsystem with modular image-processing architecture Physics 40 Expired
US7775436B2 Method 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 operations Physics 39 Active
US7490778B2 Method 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 architecture Physics 39 Active
US7320431B2 Digital imaging-based bar code symbol reading system employing a multi-mode illumination subsystem with far-field and near field led-based illumination arrays Physics 38 Expired
US7357325B2 Hand-supportable imaging-based bar code symbol reader employing a CMOS-type image sensor using global exposure techniques Physics 37 Expired
US7255279B2 Hand-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 processing Physics 35 Expired
US7527206B2 Method 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 therewithin Physics 34 Active
US7273180B2 Hand-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 images Physics 34 Expired
US7513430B2 Digital 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 array Physics 34 Active
US7503499B2 Digital 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-detector Physics 34 Active
US7360706B2 Hand-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 analysis Physics 31 Expired
US7428998B2 Automatic 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 symbol Physics 31 Expired
US7681799B2 Method of reading code symbols using a digital image capturing and processing system employing a micro-computing platform with an event-driven multi-tier software architecture Physics 31 Active
US7225989B2 Method 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 operation Physics 29 Expired
US7954719B2 Tunnel-type digital imaging-based self-checkout system for use in retail point-of-sale environments Human Necessities 29 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.