1
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 ...


2
Ynjiun Wang, William H Havens: Bar code reading device with global electronic shutter control. Hand Held Products, Marjama Muldoon Blasiak & Sullivan, August 4, 2009: US07568628 (101 worldwide citation)

The invention features an image reader and a corresponding method for capturing a sharp distortion free image of a target, such as a one or two-dimensional bar code. In one embodiment, the image reader comprises a two-dimensional CMOS based image sensor array, a timing module, an illumination module ...


3
Ynjiun Wang, William H Havens: System and method to automatically focus an image reader. Hand Held Products, Marjama Muldoon Blasiak & Sullivan, November 3, 2009: US07611060 (86 worldwide citation)

The invention features a system and method to automatically focus an image reader using a single frame of image data. The method comprises exposing sequentially a plurality of rows of pixels in the image sensor. The method further comprising varying in incremental steps the focus of the image reader ...


4
Ynjiun Wang: Digital picture taking optical reader having hybrid monochrome and color image sensor array. Hand Held Products, Marjama Muldoon Blasiak & Sullivan, August 24, 2010: US07780089 (62 worldwide citation)

A portable hand held optical reader having a specially constructed two-dimensional image sensor array is operational in a bar code decoding mode and in a picture taking mode. The specially constructed image sensor array, in one embodiment, is a hybrid monochrome and color image sensor pixel array, w ...


5
Ynjiun Wang: System and method to automatically discriminate between a signature and a dataform. Hand Held Products, Marjama Muldoon Blasiak & Sullivan, November 13, 2007: US07293712 (55 worldwide citation)

There is described a system and method for automatically discriminating between different types of data with an image reader. In brief overview of one embodiment, the automatic discrimination feature of the present image reader allows a human operator to aim a hand-held image reader at a target that ...


6
Joseph Katz, Emanuel Marom, Boris Metlitsky, Jerome Swartz, Ynjiun Wang: Bar code incorporated into holographic display. Symbol Technologies, Fish & Richardson, June 6, 1995: US05422744 (54 worldwide citation)

In order to improve security for holographic labels which are positioned on a substrate base, a bar code symbol with regions of different light reflective properties is holographically recorded on the base. The base may be, for example an information card, such as a credit card, a label, or a contai ...


7
Ynjiun Wang: Data collection device having dynamic access to multiple wireless networks. Hand Held Products, Marjama Muldoon Blasiak & Sullivan, May 18, 2010: US07717342 (52 worldwide citation)

There is described a data collection device that can incorporate an encoded information reading unit that can operate within a system including an access point that is wireline connected to a server. The encoded information reading unit can include at least one of a bar code reading unit, an RFID ta ...


8
Jianhua Li, Chen Feng, William H Havens, Ynjiun Wang: Indicia reading terminal having multiple setting imaging lens. Hand Held Products, Marjama Muldoon Blasiak & Sullivan, April 5, 2011: US07918398 (45 worldwide citation)

An indicia reading terminal can include a multiple setting imaging lens assembly and an image sensor having an image sensor array. In one embodiment, an indicia reading terminal in an active reading state can cycle through a set of different lens settings, expose pixels of an image sensor array duri ...


9
Ynjiun Wang, William H Havens: Image reader having image sensor array. Hand Held Products, Heslin Rothenberg Farley & Mesiti P C, April 3, 2012: US08146820 (31 worldwide citation)

The invention features a system and method to automatically focus an image reader using a single frame of image data. The method comprises exposing sequentially a plurality of rows of pixels in the image sensor. The method further comprising varying in incremental steps the focus of the image reader ...


10
Ynjiun Wang: Indicia reading apparatus having image sensing and processing circuit. Hand Held Products, Heslin Rothenberg Farley & Mesiti P C, September 27, 2011: US08025232 (29 worldwide citation)

There is provided in one embodiment an indicia reading apparatus with enhanced functionality which can filter image data prior to the capture of image data into an image frame memory for further processing. In one aspect the indicia reading apparatus can have an image sensing and processing circuit ...