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Class Information
Number: 235/455
Name: Registers > Coded record sensors > Particular sensor structure > Optical > Light level control
Description: Subject matter including means to maintain the light contrast or compensate for variations in the light contrast between the coded indicia to be sensed and the background level of the record.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8701999 Method and apparatus for reading optical indicia Apr. 22, 2014
8684268 Product display system, profile assembly for a product display system, and method for illuminating a product Apr. 1, 2014
8636215 Decodable indicia reading terminal with optical filter Jan. 28, 2014
8632011 Systems and methods for illuminating a scan volume of an optical code reader Jan. 21, 2014
8628013 Apparatus comprising image sensor array and illumination control Jan. 14, 2014
8596542 Apparatus operative for capture of image data Dec. 3, 2013
8590792 Apparatus for and method of reading printed and electronic codes Nov. 26, 2013
8589801 Display screen user identification card for access to secured databases Nov. 19, 2013
8573497 Adaptive data reader and method of operating Nov. 5, 2013
8561903 System operative to adaptively select an image sensor for decodable indicia reading Oct. 22, 2013
8556179 Motion tolerant bar code reader Oct. 15, 2013
8534564 Integration of verification tokens with mobile communication devices Sep. 17, 2013
8523074 Bar code imagers Sep. 3, 2013
8485444 Apparatus and method for reading symbol information Jul. 16, 2013
8479991 Illumination setting support apparatus of optical information reading apparatus Jul. 9, 2013
8448862 Graphical code readers that are configured for glare reduction May. 28, 2013
8424767 Auto-exposure for multi-imager barcode reader Apr. 23, 2013
8408464 Auto-exposure method using continuous video frames under controlled illumination Apr. 2, 2013
8403220 Optical code detection with image exposure control Mar. 26, 2013
8387882 Decodable indicia reading terminal with a platter to inhibit light reflection Mar. 5, 2013
8387881 Terminal with screen reading mode Mar. 5, 2013
8342404 Illumination setting support apparatus of optical information reading apparatus Jan. 1, 2013
8342405 Light pipe illumination system and method Jan. 1, 2013
8336778 Graphical code readers that provide sequenced illumination for glare reduction Dec. 25, 2012
8322627 Nested binary code symbol Dec. 4, 2012
8302863 Lighting system for contrasting engraved codes Nov. 6, 2012
8282000 Method and apparatus for providing omnidirectional lighting in a scanning device Oct. 9, 2012
8245929 Information processing device, with a control unit to control supply of light to an IC card when communicating data to the IC card Aug. 21, 2012
8243134 Optical reader capable of changing the incident angle of dark field illumination Aug. 14, 2012
8220713 Illumination driver circuit for using in imaging-based barcode reader Jul. 17, 2012
8215554 Graphical code readers for balancing decode capability and speed by using image brightness information Jul. 10, 2012
8210436 Automatic video image reversal of difficult to read symbols Jul. 3, 2012
8167207 Integrated optical exit window May. 1, 2012
8167208 Arrangement for and method of controlling monitor photodiode leakage current in lasers in electro-optical readers May. 1, 2012
8152069 Dual focus imaging based symbology reading system Apr. 10, 2012
8146821 Auto-exposure for multi-imager barcode reader Apr. 3, 2012
8118226 High-resolution optical code imaging using a color imager Feb. 21, 2012
8061614 Light pipe illumination system and method Nov. 22, 2011
8061613 Method and apparatus for providing omnidirectional lighting in a scanning device Nov. 22, 2011
8028917 Adaptive optimizations for signal processing in imaging readers Oct. 4, 2011
8028913 Arrangement for and method of uniformly illuminating direct part markings to be imaged and electro-optically read Oct. 4, 2011
8011584 Graphical code readers that are configured for glare reduction Sep. 6, 2011
8002186 Laser power control arrangements in electro-optical readers Aug. 23, 2011
7971790 Laser pointer with controllable pattern and size of projected image Jul. 5, 2011
7963450 Near infrared ink security feature Jun. 21, 2011
7905414 Imaging reader with adaptive focusing for electro-optically reading symbols Mar. 15, 2011
7874487 Integrated illumination assembly for symbology reader Jan. 25, 2011
7871005 Information reader for optically reading code Jan. 18, 2011
7850083 Digital control system for an electro-optical device Dec. 14, 2010
7823783 Light pipe illumination system and method Nov. 2, 2010

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