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Class Information
Number: 250/559.37
Name: Radiant energy > Photocells; circuits and apparatus > With circuit for evaluating a web, strand, strip, or sheet > Measuring position > Angular orientation (e.g., skew)
Description: Subject matter wherein the circuit output is indicative of an angle of the material relative to the reference frame.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7502127 |
Sensor device and stage device |
Mar. 10, 2009 |
| 7462855 |
Optical recording and reproducing apparatus, optical head, optical recording and reproducing method and skew detection method |
Dec. 9, 2008 |
| 7385214 |
System and method for correcting systematic error of, and calibrating for, tilt angle of surface topology sensor head having plurality of distance sensors |
Jun. 10, 2008 |
| 7345293 |
Device and method for inspecting piston ring |
Mar. 18, 2008 |
| 7129507 |
Chip mis-position detection method |
Oct. 31, 2006 |
| 7126145 |
Frame transfer prober |
Oct. 24, 2006 |
| 7110153 |
Optical apparatus and laser display apparatus having laser beam scanner each |
Sep. 19, 2006 |
| 7068408 |
Optical apparatus and laser display apparatus having laser beam scanner each |
Jun. 27, 2006 |
| 7034279 |
Method and system for printhead rotation detection using photosensors |
Apr. 25, 2006 |
| 6950548 |
Creating geometric model descriptions for use in machine vision inspection systems |
Sep. 27, 2005 |
| 6903857 |
Optical apparatus and laser display apparatus having laser beam scanner each |
Jun. 7, 2005 |
| 6891183 |
Ultrasonic-welding apparatus, optical sensor and rotation sensor for the ultrasonic-welding apparatus |
May. 10, 2005 |
| 6813377 |
Methods and apparatuses for generating a model of an object from an image of the object |
Nov. 2, 2004 |
| 6707053 |
Tilt detector |
Mar. 16, 2004 |
| 6653944 |
Semiconductor wafer transport pod equipped with cover latch indicator |
Nov. 25, 2003 |
| 6650769 |
Review station and appearance inspection device for checking semiconductor wafers |
Nov. 18, 2003 |
| 6639239 |
Angle rejection filter |
Oct. 28, 2003 |
| 6566642 |
Image recording apparatus and image recording method |
May. 20, 2003 |
| 6545284 |
Face position detection method and apparatus, and exposure method and exposure apparatus, a production method for an exposure apparatus and a production method for a semiconductor device |
Apr. 8, 2003 |
| 6542839 |
Apparatus and method for calibrating the position of a cassette indexer |
Apr. 1, 2003 |
| 6538252 |
Method and device for determining the alignment of line formations in areal, especially longitudinally moved, webs of a structural formed body |
Mar. 25, 2003 |
| 6525332 |
Method for detecting and compensating disk tilt and apparatus used it |
Feb. 25, 2003 |
| 6521906 |
Method and apparatus for measuring the distortion angle of a strip of textile, wherein a sensor array scans at progressively altered angles |
Feb. 18, 2003 |
| 6512578 |
Method and apparatus for surface inspection |
Jan. 28, 2003 |
| 6459092 |
6 degree-of-freedom (DOF) motion measuring apparatus |
Oct. 1, 2002 |
| 6160265 |
SMIF box cover hold down latch and box door latch actuating mechanism |
Dec. 12, 2000 |
| 6137566 |
Method and apparatus for signal processing in a laser radar receiver |
Oct. 24, 2000 |
| 6043502 |
Apparatus and method for sensing an insertion state of a wafer in a cassette |
Mar. 28, 2000 |
| 6040903 |
Electro-optical measuring device for determining the relative position of two bodies, or of two surface areas of bodies, in relation to each other |
Mar. 21, 2000 |
| 5990567 |
System for in-line monitoring of photo processing tilt in VLSI fabrication |
Nov. 23, 1999 |
| 5964564 |
Method and apparatus for detecting cross-slotted objects |
Oct. 12, 1999 |
| 5949547 |
System for in-line monitoring of photo processing in VLSI fabrication |
Sep. 7, 1999 |
| 5895928 |
Automatic document presence, width and skew detection method and apparatus for a document scanner |
Apr. 20, 1999 |
| 5801823 |
Driver's eyes location determining apparatus and method |
Sep. 1, 1998 |
| 5737063 |
Projection exposure apparatus |
Apr. 7, 1998 |
| 5717491 |
Process and device for determining the center-line of a curvature |
Feb. 10, 1998 |
| 5691921 |
Thermal sensors arrays useful for motion tracking by thermal gradient detection |
Nov. 25, 1997 |
| 5676477 |
Sheet carrying apparatus |
Oct. 14, 1997 |
| 5646414 |
Method and apparatus for measuring distortion angle of weft in textiles |
Jul. 8, 1997 |
| 5609428 |
Sheet carrying apparatus |
Mar. 11, 1997 |
| 5510625 |
Method and apparatus for electro optically determining the dimension, location and attitude of objects |
Apr. 23, 1996 |
| 5510892 |
Inclination detecting apparatus and method |
Apr. 23, 1996 |
| 5479006 |
Positioning skew compensation for imaging system using photoconductive material |
Dec. 26, 1995 |
| 5406074 |
Noninvasive, remote eye position and orientation measurement system using light beams normal to the surface of the eye |
Apr. 11, 1995 |
| 5389778 |
Photoelectric conversion circuit having a tuning circuit and changeover switches |
Feb. 14, 1995 |
| 5381021 |
Sheet alignment device having a display for indicating a reason for rejecting the sheet |
Jan. 10, 1995 |
| 5329132 |
Positioning device with linear scanning and angled code lines |
Jul. 12, 1994 |
| 5313054 |
Method and device for determining the orientation of a solid |
May. 17, 1994 |
| 5302833 |
Rotational orientation sensor for laser alignment control system |
Apr. 12, 1994 |
| 5302834 |
Optical pickup and tilt control device including a plurality of photosensitive units for generating signals indicating whether tilt correction is necessary |
Apr. 12, 1994 |
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