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Tao Xian, Duane Ellis, Timothy Good, Xiaoxun Zhu: Bar code symbol reading system supporting visual or/and audible display of product scan speed for throughput optimization in point of sale (POS) environments. Metrologic Instruments, Summa Additon & Ashe P A, May 28, 2013: US08448863 (257 worldwide citation)

A POS-based bar code symbol reading system that reads bar code symbols on objects being passed through the 3D imaging or scanning volume supported by the system, and employs one or more object motion sensors (e.g. imaging based, IR Pulse-Doppler LIDAR-based, ultra-sonic energy based, etc.) to (i) me ...


2
Tao Xian, Gennady Germaine, Xiaoxun Zhu, Ynjiun Paul Wang: Indicia reading system employing digital gain control. Metrologic Instruments, Additon Higgins Pendleton & Ashe P A, June 17, 2014: US08752766 (222 worldwide citation)

A laser scanning code symbol reading system includes an analog scan data signal processor for producing digitized data signals, wherein during each laser beam scanning cycle, a light collection and photo-detection module generates an analog scan data signal corresponding to a laser scanned code symb ...


3
Tao Xian, Ynjiun P Wang, Yong Liu, Chen Feng: Laser scanning code symbol reading system employing multi-channel scan data signal processing with synchronized digital gain control (SDGC) for full range scanning. Metrologic Instruments, Additon Higgins Pendleton & Ashe P A, July 29, 2014: US08789759 (221 worldwide citation)

A laser scanning code symbol reading system includes an analog scan data signal processor for producing digital data signals, wherein during each scanning cycle, a light collection and photo-detection module generates an analog scan data signal corresponding to a laser scanned code symbol, a multi-c ...


4
Tao Xian, Ynjiun Paul Wang, Thomas Amundsen: Removeable scanning module for mobile communication terminal. Honeywell International, Additon Higgins & Pendleton P A, June 9, 2015: US09053380 (203 worldwide citation)

A decodable indicia reading system can comprise a mobile communication terminal and a removable scanning module. The mobile communication terminal can comprise a microprocessor and a memory. The mobile communication terminal can further comprise at least one wired communication interface including a ...


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Gennady Germaine, Tao Xian, Chen Feng, Ynjiun Wang, Xiaoxun Zhu, Stephen Colavito, Robert Blake: Barcode reader with edge detection enhancement. Hand Held Products, Additon Higgins & Pendleton P A, February 10, 2015: US08950678 (201 worldwide citation)

An optical reader for decoding an encoded symbol character of a symbology includes a scan data signal processor having as an input a scan data signal encoding information representative of the encoded symbol character. The scan data signal processor includes a first time delay stage adapted to provi ...


6
Tao Xian, Gennady Germaine, Xiaoxun Zhu, Ynjiun Paul Wang: Indicia reading system employing digital gain control. Metrologic Instruments, Additon Higgins & Pendleton P A, June 23, 2015: US09064167 (201 worldwide citation)

A scanning code symbol reading system includes an analog scan data signal processor for producing digitized data signals, wherein during each laser beam scanning cycle, a light collection and photo-detection module generates an analog scan data signal corresponding to a laser scanned code symbol, an ...


7
Tao Xian, Ynjiun Paul Wang, Yong Liu, Chen Feng: Laser scanning code symbol reading system. Metrologic Instruments, Additon Higgins & Pendleton P A, May 26, 2015: US09038911 (200 worldwide citation)

A laser scanning symbol reading system includes an analog scan data signal processor for producing digital data signals, wherein during each scanning cycle, a light collection and photo-detection module generates an analog scan data signal corresponding to a laser scanned symbol, a multi-channel par ...


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C Harry Knowles, Xiaoxun Zhu, Timothy Good, Tao Xian: Omni-directional digital image capturing and processing system employing coplanar illumination and imaging stations in horizontal and vertical housing sections of the system. Metrologic Instruments, Thomas J Perkowski Esq P C, September 1, 2009: US07581680 (22 worldwide citation)

An omni-directional digital image capturing and processing system for use in a POS environment, comprising a system housing having a horizontal housing section and a vertical housing section. The horizontal housing section has a horizontal imaging window, and contains a first plurality of coplanar i ...


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Chen Feng, Tao Xian, Mehul Patel, Sean Philip Kearney, Paul Poloniewicz: Add-on device with configurable optics for an image scanner for scanning barcodes. Hand Held Products, Additon Higgins & Pendleton P A, July 4, 2017: US09697401 (19 worldwide citation)

An add-on device for an image scanner for scanning barcodes is provided. The add-on device includes a housing mounted to the standard range lens front on an image scanner, and a lens holder. The lens holder has a first position for holding a first lens, a second position being an aperture, and a thi ...