1
Chen Feng: Hand held dataform reader having strobing ultraviolet light illumination assembly for reading fluorescent dataforms. Meta Holdings Corporation, Watts Hoffmann Fisher & Heinke Co LPA, September 26, 2000: US06123263 (375 worldwide citation)

A portable data collection device having a modular imaging-based dataform reader. The dataform reader includes a two dimensional imaging assembly adapted to image and decode a dataform printed using ink that fluoresces when illuminated by ultraviolet light. The imaging assembly includes a two dimens ...


2
Chen Feng, Ynjiun P Wang: Portable data collection device with LED targeting and illumination assembly. Metanetics Corporation, Watts Hoffman Fisher & Heinke Co A, July 21, 1998: US05783811 (330 worldwide citation)

The device includes an imaging assembly including a two dimensional (2D) photosensor array overlied by a RGB color filter. The imaging assembly includes an illumination assembly providing a relatively uniform illumination pattern over an imaging target area. The illumination assembly includes a plur ...


3
Chen Feng, Ynjiun P Wang: Portable data collection device with viewing assembly. Metanetics Corporation, Watts Hoffmann Fisher & HeinkeCo A, November 10, 1998: US05834754 (285 worldwide citation)

A portable data collection device is disclosed. The device includes an imaging assembly including a two dimensional (2D) photosensor array. The imaging assembly is selectively actuatable with a first trigger for reading a target dataform in the imaging assembly's target area and actuatable with a se ...


4
Chen Feng, Ynjiun P Wang: Portable data collection device with viewing assembly. Metanetics Corporation, Watts Hoffman Fisher & Heinke Co A, August 11, 1998: US05793033 (277 worldwide citation)

A portable data collection device. The device includes an imaging assembly including a two dimensional (2D) photosensor array. The imaging assembly is selectively actuatable with a first trigger for reading a target dataform in the imaging assembly's target area and actuatable with a second trigger ...


5
Chen Feng: Portable data collection device with crosshair targeting illumination assembly. Telxon Corporation, Watts Hoffmann Fisher & Heinke Co, September 7, 1999: US05949057 (273 worldwide citation)

A portable data collection device is disclosed. The device includes an imaging assembly including a two dimensional (2D) photosensor array. The imaging assembly is selectively actuatable with a first trigger for reading a target dataform in the imaging assembly's target area and actuatable with a se ...


6
Chen Feng, Ynjiun P Wang: Imaging based slot dataform reader. Metanetics Corporation, Watts Hoffman Fisher & Heinke Co A, February 10, 1998: US05717195 (261 worldwide citation)

A fixed position dataform reader reads a dataform printed on a substrate and passed through a desired target area. The reader comprises a housing, a first camera assembly, image processing and decoder circuitry, and a mounting support. The housing has a base surface, a face surface, and at least one ...


7
Chen Feng: Portable data collection device including color imaging dataform reader assembly. Metanetics Corporation, Watts Hoffmann Fisher & Heinke Co A, May 16, 2000: US06062475 (259 worldwide citation)

A portable data collection device providing for dataform decoding and color imaging. An imaging assembly is provided that includes a board camera having black and white circuitry and generates a composite video signal representing an image of a target area of the imaging assembly when actuated. The ...


8
Chen Feng: Portable data collection device with variable focusing module for optic assembly. Metanetics Corporation, Watts Hoffmann Fisher & Heinke Co A, January 30, 2001: US06179208 (252 worldwide citation)

A portable data collection device including an imaging assembly including a two dimensional (2D) photosensor array. The imaging assembly is selectively actuatable with a first trigger for reading a target dataform in the imaging assembly's target area and actuatable with a second trigger for ca ...


9
Chen Feng: Portable data collection device including imaging assembly with modular high density dataform reader assembly. Metanetics Corporation, Watts Hoffmann Fisher & Heinke Co, July 6, 1999: US05920061 (229 worldwide citation)

A portable data collection device adapted to read high density bar code and matrix dataforms. The device includes an imaging assembly including a modular camera housing supporting a two dimensional (2D) photosensor array. The imaging assembly is selectively actuatable with a first trigger for readin ...


10
Yiwu Ding, Chen Feng, Ynjiun Paul Wang: Decodable indicia reading terminal with optical filter. Hand Held Products, Additon Higgins Pendleton & Ashe P A, January 28, 2014: US08636215 (214 worldwide citation)

A decodable indicia reading terminal can comprise a housing including a housing window, a multiple pixel image sensor disposed within the housing, an imaging lens configured to focus an image of decodable indicia on the image sensor, an optical bandpass filter disposed in an optical path of light in ...