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Class Information
Number: 235/462.06
Name: Registers > Coded record sensors > Particular sensor structure > Optical > Bar code > Light level adaptation
Description: Subject matter including means to maintain the light contrast or compensate for variations in the light contrast between the bar code to be sensed and the background illumination of the record.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7579582 |
Scanning method and scanning apparatus |
Aug. 25, 2009 |
| 7575168 |
Methods, devices and computer program products for generating, displaying and capturing a series of images of visually encoded data |
Aug. 18, 2009 |
| 7543754 |
Methods and apparatus for information capture illumination |
Jun. 9, 2009 |
| 7494065 |
Optical code reader system and method for control of illumination for aiming and exposure |
Feb. 24, 2009 |
| 7475823 |
Hand held bar code reader with improved image capture |
Jan. 13, 2009 |
| 7475822 |
Device for reading optical data code |
Jan. 13, 2009 |
| 7475821 |
Scanner and method for eliminating specular reflection |
Jan. 13, 2009 |
| 7413126 |
Analog-to-digital converter with automatic range and sensitivity adjustment |
Aug. 19, 2008 |
| 7401738 |
Apparatus for reading a color symbol |
Jul. 22, 2008 |
| 7389929 |
Long range optical reader |
Jun. 24, 2008 |
| 7380721 |
Low-cost compact bar code sensor |
Jun. 3, 2008 |
| 7364085 |
Identification document with printing that creates moving and three dimensional image effects with pulsed illumination |
Apr. 29, 2008 |
| 7360705 |
Apparatus and method for reading machine-readable symbols |
Apr. 22, 2008 |
| 7296743 |
Laser power control arrangements in electro-optical readers |
Nov. 20, 2007 |
| 7290711 |
System and method for reducing motion sensitivity in an imager based optical code reader |
Nov. 6, 2007 |
| 7281662 |
Methods and apparatus for information capture illumination |
Oct. 16, 2007 |
| 7273176 |
Electro-optic reader for retro-reflective bar codes |
Sep. 25, 2007 |
| 7264165 |
Method for reading a graphic pattern and acquiring its image |
Sep. 4, 2007 |
| 7210631 |
Color bar code system |
May. 1, 2007 |
| 7204420 |
Scanner and method for eliminating specular reflection |
Apr. 17, 2007 |
| 7201321 |
Electro-optically reading direct part markings on workpieces by image capture |
Apr. 10, 2007 |
| 7200466 |
Parts assembly management system |
Apr. 3, 2007 |
| 7152797 |
Apparatus and method for reading embedded indicia |
Dec. 26, 2006 |
| 7147161 |
Digitizing bar code symbol data |
Dec. 12, 2006 |
| 7070107 |
Led-based planar light illumination and imaging (PLIIM) systems |
Jul. 4, 2006 |
| 7063260 |
Spectrally-encoded labeling and reading |
Jun. 20, 2006 |
| 7028901 |
System and method for reading and decoding optical codes using multiple color illumination |
Apr. 18, 2006 |
| 7025270 |
Automatic adjustment of illumination for reading barcodes and similar items |
Apr. 11, 2006 |
| 7025267 |
Method for reading a graphic pattern and acquiring its image |
Apr. 11, 2006 |
| 7023626 |
Optical device, lens and optical element for focusing a laser beam and apparatus and method for assembling the optical device |
Apr. 4, 2006 |
| 6948662 |
Two-dimensional optical code scanner with scanning pattern having region of greater apparent brightness for assisting alignment of scanning pattern |
Sep. 27, 2005 |
| 6945462 |
Optical information reading apparatus |
Sep. 20, 2005 |
| 6915955 |
Apparatus for determining multi-bit data via light received by a light receiver and coupled to spectral sensors that measure light in spectral bands |
Jul. 12, 2005 |
| 6883711 |
Missing link/part detector employing scanning engine |
Apr. 26, 2005 |
| 6854650 |
Mirrored surface optical symbol scanner |
Feb. 15, 2005 |
| 6805449 |
Presentation imaging system |
Oct. 19, 2004 |
| 6766953 |
Tape indicia on clear film media |
Jul. 27, 2004 |
| 6752315 |
Detector assembly for use in a bar code scanner and methods for fabricating the same |
Jun. 22, 2004 |
| 6736321 |
Planar laser illumination and imaging (PLIIM) system employing wavefront control methods for reducing the power of speckle-pattern noise digital images acquired by said system |
May. 18, 2004 |
| 6698659 |
Optical data form reading apparatus |
Mar. 2, 2004 |
| 6688523 |
System for reading optical indicia |
Feb. 10, 2004 |
| 6637893 |
Presentation imaging system |
Oct. 28, 2003 |
| 6634553 |
Method and apparatus for even illumination of a target for image capture |
Oct. 21, 2003 |
| 6612494 |
Product authentication system |
Sep. 2, 2003 |
| 6601767 |
Ambient light sensing apparatus and method for a produce data collector |
Aug. 5, 2003 |
| 6599074 |
Binder strip having encoded surface and method |
Jul. 29, 2003 |
| 6588668 |
Bar code scanner |
Jul. 8, 2003 |
| 6568597 |
Scanning system with adjustable optical characteristics |
May. 27, 2003 |
| 6557764 |
Method and apparatus for illumination control to increase the manufacturing yield for a bar code and position reference reader in a mass storage auto-changer |
May. 6, 2003 |
| 6501547 |
Hand-held produce recognition system and produce data collector |
Dec. 31, 2002 |
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