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Class Information
Number: 250/557
Name: Radiant energy > Photocells; circuits and apparatus > Photocell controlled circuit > Including coded record > With means to position, direct, or detect record
Description: Subject matter having means for adjusting, centering, aligning, arranging or sorting the record; or means to detect the presence of the record, per se.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7573616 |
Enhanced data capture from imaged documents |
Aug. 11, 2009 |
| 7565034 |
Determination of a navigation window in an optical navigation system |
Jul. 21, 2009 |
| 7536268 |
Collecting information to identify defective locations of a display monitor |
May. 19, 2009 |
| 7502515 |
Method for detecting sub-pixel motion for optical navigation device |
Mar. 10, 2009 |
| 7259858 |
Imaging apparatus having media sensing system |
Aug. 21, 2007 |
| 7247836 |
Method and system for determining motion based on difference image correlation |
Jul. 24, 2007 |
| 7215424 |
Broadband ellipsometer or polarimeter system including at least one multiple element lens |
May. 8, 2007 |
| 7096058 |
Laser blood-flow meter and system for monitoring bio-data |
Aug. 22, 2006 |
| 7057148 |
Optical tracking sensor method |
Jun. 6, 2006 |
| 7034323 |
Method and device for performing a test for acceptability of bank notes by automatic vending machines |
Apr. 25, 2006 |
| 6993211 |
Code reader |
Jan. 31, 2006 |
| 6832517 |
Optical level detector |
Dec. 21, 2004 |
| 6782334 |
Method and system for calibration of time delay integration imaging devices |
Aug. 24, 2004 |
| 6774374 |
Isolation mounts for use with vacuum chambers and their application in lithographic projection apparatuses |
Aug. 10, 2004 |
| 6730920 |
Abbe arm calibration system for use in lithographic apparatus |
May. 4, 2004 |
| 6726103 |
Imaging system with built-in diagnostics |
Apr. 27, 2004 |
| 6657184 |
Optical navigation upon grainy surfaces using multiple navigation sensors |
Dec. 2, 2003 |
| 6580086 |
Shielded optical probe and method |
Jun. 17, 2003 |
| 6537836 |
Semiconductor structures and manufacturing methods |
Mar. 25, 2003 |
| 6456374 |
Exposure apparatus and a device manufacturing method using the same |
Sep. 24, 2002 |
| 6441891 |
System for detecting a foreign object attached to a bill passing through a bill validator |
Aug. 27, 2002 |
| 6293081 |
Fiber optic cable marking process and a sensor device use therewith |
Sep. 25, 2001 |
| 6163034 |
Optical sensor with planar wall |
Dec. 19, 2000 |
| 6130418 |
Optical scanning unit having a main lens and an auxiliary lens |
Oct. 10, 2000 |
| 5994710 |
Scanning mouse for a computer system |
Nov. 30, 1999 |
| 5910843 |
Positioning apparatus and method thereof, and exposure apparatus |
Jun. 8, 1999 |
| 5825044 |
Freehand image scanning device which compensates for non-linear color movement |
Oct. 20, 1998 |
| 5811792 |
Method and apparatus for accessing contents of envelopes and other similarly concealed information |
Sep. 22, 1998 |
| 5698860 |
Edge position sensor for magnetic tape using light pipes |
Dec. 16, 1997 |
| 5691533 |
Method and apparatus for the detection of the location of multiple character marks |
Nov. 25, 1997 |
| 5686720 |
Method and device for achieving high contrast surface illumination |
Nov. 11, 1997 |
| 5644139 |
Navigation technique for detecting movement of navigation sensors relative to an object |
Jul. 1, 1997 |
| 5628574 |
Web error recovery divert system |
May. 13, 1997 |
| 5569929 |
Double-beam light source apparatus, position detecting apparatus and aligning apparatus |
Oct. 29, 1996 |
| 5530256 |
Double-beam light source apparatus, position detecting apparatus and aligning apparatus |
Jun. 25, 1996 |
| 5530257 |
Double-beam light source apparatus, position detecting apparatus and aligning apparatus |
Jun. 25, 1996 |
| 5502311 |
Method of and apparatus for detecting plane position |
Mar. 26, 1996 |
| 5488230 |
Double-beam light source apparatus, position detecting apparatus and aligning apparatus |
Jan. 30, 1996 |
| 5477057 |
Off axis alignment system for scanning photolithography |
Dec. 19, 1995 |
| 5442187 |
Device and method for positioning the sensors of a web movement control device |
Aug. 15, 1995 |
| 5442188 |
Strip chart recorder paper attribute detector and monitor |
Aug. 15, 1995 |
| 5402508 |
Fiber optic probe having fibers with endfaces formed for improved coupling efficiency and method using same |
Mar. 28, 1995 |
| 5334848 |
Spacecraft docking sensor system |
Aug. 2, 1994 |
| 5324953 |
Reduced-projection exposure system with chromatic aberration correction system including diffractive lens such as holographic lens |
Jun. 28, 1994 |
| 5300787 |
Method for setting a sensor which detects the edge of a moving web of material in a contact-free manner |
Apr. 5, 1994 |
| 5293047 |
Method and an apparatus for detecting indices of paper based on a replaceable intermediate or average threshold value |
Mar. 8, 1994 |
| 5288994 |
Image detecting apparatus and method for reading and or verifying the contents of sealed envelopes |
Feb. 22, 1994 |
| 5283699 |
Micro-bar code reader system |
Feb. 1, 1994 |
| 5279157 |
Liquid level monitor |
Jan. 18, 1994 |
| 5223720 |
Predicting register mark position with data shifting and coincidence detection |
Jun. 29, 1993 |
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