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Class Information
Number: 250/566
Name: Radiant energy > Photocells; circuits and apparatus > Optical or pre-photocell system > Including coded record
Description: Subject matter comprising data bearing means containing information in symbolic form where the symbols are arbitrarily given certain meanings and means for illuminating said data bearing means prior to the photoelectric cell; or methods of using such means.

Sub-classes under this class:

Class Number Class Name Patents
250/568 Digital information 146

Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8558206 Flexible reading device for traceability of products Oct. 15, 2013
8498052 Composition including an item and an encoded optical substrate and a method for identifying an item Jul. 30, 2013
8461514 Optical spectrum modulated position sensor having a controller with at least one fiber optic line Jun. 11, 2013
8450708 Arrangement for and method of generating uniform distributed illumination pattern for imaging reader May. 28, 2013
8408476 Length measurement system based on optical recognition pattern for length measurement Apr. 2, 2013
7956340 Light concentrator for an optical code reader Jun. 7, 2011
7813891 Methods and systems for detecting spectrophotometer misalignment Oct. 12, 2010
7755073 Acousto-optic filter and optical CDMA system using the same Jul. 13, 2010
7731092 Optical information reading apparatus Jun. 8, 2010
7667217 Apparatus for observing and capturing latent images on objects, and method for using same Feb. 23, 2010
7659532 Image reading apparatus capable of reading infrared and visible images Feb. 9, 2010
7619819 Method and apparatus for drug product tracking using encoded optical identification elements Nov. 17, 2009
7397057 Optical information readout apparatus Jul. 8, 2008
7391546 Discrimination medium and discrimination method using the same Jun. 24, 2008
7388221 Viewer and method for displaying information based on viewer position Jun. 17, 2008
7335903 Detachable bill acceptor mounting arrangement Feb. 26, 2008
7279696 Optical information code reading apparatus using marker beam Oct. 9, 2007
7265370 Sensing light Sep. 4, 2007
7221998 Determining pallet case configurations for placement by a robot May. 22, 2007
7173235 Apparatus for optically reading target Feb. 6, 2007
7164533 Hybrid random bead/chip based microarray Jan. 16, 2007
7161134 Procedure for scanning identifying badges for automotive vehicle Jan. 9, 2007
7148499 Device for interacting with an interface surface Dec. 12, 2006
7126755 Method and apparatus for labeling using diffraction grating-based encoded optical identification elements Oct. 24, 2006
7071481 Automated reagentless system of product fingerprint authentication and trademark protection Jul. 4, 2006
7019319 Viewer configured to display, and method of displaying, information on a display to at least partially take into account a position of the viewer relative to a surface Mar. 28, 2006
6992846 Micro reader scan engine with prism Jan. 31, 2006
6946672 Viewer with code sensor and printer Sep. 20, 2005
6884993 Off-axis object detection system for a bar code scanner Apr. 26, 2005
6871116 Determining pallet case configurations for placement by a robot Mar. 22, 2005
6775077 Micro reader scan engine with prism Aug. 10, 2004
6765195 Method and apparatus for two-dimensional absolute optical encoding Jul. 20, 2004
6750479 Semiconductor component and a method for identifying a semiconductor component Jun. 15, 2004
6714351 Illumination apparatus with polarizing elements for beam shaping Mar. 30, 2004
6710364 Semiconductor wafer edge marking Mar. 23, 2004
6664535 Scale structures and methods usable in an absolute position transducer Dec. 16, 2003
6621070 Bar code scanning system with offset optical axes Sep. 16, 2003
6501087 Image reading apparatus having multiple wavelength light sources and control method for the same Dec. 31, 2002
6469294 Optical scanner and light source module with reduced light beam diameter Oct. 22, 2002
6465770 Device for positioning objects Oct. 15, 2002
6465787 Covert surveillance system for tracking light sensitive tagged moving vehicles Oct. 15, 2002
6429934 Optimal symbology illumination-apparatus and method Aug. 6, 2002
6410931 Electro-optical reader with hands-free and hand-held modes of operation Jun. 25, 2002
6376855 Horizontal scanning device able to scan a bar code label on an underside or on a standing side wall of an article Apr. 23, 2002
6365907 Device for recognizing diffraction optical markings Apr. 2, 2002
6323503 CCD scanner having improved specular reflection discrimination Nov. 27, 2001
6303927 Optical scan module with integral collection lens mount Oct. 16, 2001
6300645 Position sensing device having a single photosensing element Oct. 9, 2001
6270728 Test tube with optically readable coding Aug. 7, 2001
6265705 Alignment apparatus and method for an imaging system Jul. 24, 2001

1 2 3 4 5 6

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