Matches 1 - 50 out of 116 1 2 3 >


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7924441 Fast and high-precision 3D tracking and position measurement with MEMS micromirrors  
An optical locating and tracking system may have two or more optical scanners, one or more optical detectors responsive to radiation from one or more optical sources, and a controller coupled to...
7764387 Apparatus and method for measuring suspension and head assemblies in a stack  
An optical measurement device for determining at least two parameters of a measurement location of a surface of at least one workpiece positioned in a known coordinate system is described. The...
7502127 Sensor device and stage device  
According to one aspect of the invention, there is provided a sensor device which is capable of detecting a state of a movable stage using an easily manufacturable reference grating and capable of...
7462855 Optical recording and reproducing apparatus, optical head, optical recording and reproducing method and skew detection method  
An optical recording and reproducing apparatus for recording and/or reproducing an optical recording medium by irradiating light from a light source to the optical recording medium as near-field...
7385214 System and method for correcting systematic error of, and calibrating for, tilt angle of surface topology sensor head having plurality of distance sensors  
The invention relates to a measuring arrangement comprising a sensor head (13) that can be displaced over a surface (11) at a distance therefrom in a scanning direction (R), a plurality of distance...
7345293 Device and method for inspecting piston ring  
A piston-ring inspecting device includes a sensor unit (27) including a light emitting system (27a) that emits slit-like detection light toward an outer peripheral surface (Ps) of a piston (P) and...
7129507 Chip mis-position detection method  
The invention is a method for detecting float or peel of semiconductor chips arranged in X and Y axes directions diced and bonded to a dicing tape on a stage. The method includes detecting float or...
7126145 Frame transfer prober  
A frame transfer prober 1, for carrying out an electrical property test on a number of semiconductor chips 10 fixed on a dicing tape 11, comprises a separation detection unit 9 for detecting the...
7110153 Optical apparatus and laser display apparatus having laser beam scanner each  
An optical apparatus is disclosed which has a scanner for scanning a predetermined area with a laser beam. The optical apparatus comprises: a laser source; a scanner having a scanning mirror for...
7034279 Method and system for printhead rotation detection using photosensors  
A method and apparatus is used to detect and compensate for printhead rotation in an inkjet printer. The detecting operation includes receiving an initial image of a pattern taken from a medium as...
6950548 Creating geometric model descriptions for use in machine vision inspection systems  
A method and system create a geometric object model for use in machine vision inspection. A pixel image representation of an object is acquired. Based on this pixel image representation, part...
6891183 Ultrasonic-welding apparatus, optical sensor and rotation sensor for the ultrasonic-welding apparatus  
An ultrasonic-welding apparatus including: a cradle, onto which two work pieces are mounted, and which can rotate around an axis vertical to the welding surface of the work pieces; a welding horn,...
6813377 Methods and apparatuses for generating a model of an object from an image of the object  
A method and an apparatus are disclosed for generating a model of an object from an image of the object. First, an orientation of the object in the image is determined through the generation of,...
6707053 Tilt detector  
A tilt detector for detecting a tilt amount of a recording surface of an optical disc at a high degree of precision. The tilt detector comprises a light emitting diode for emitting a divergent beam...
6653944 Semiconductor wafer transport pod equipped with cover latch indicator  
A pod for transporting a cassette of semiconductor wafers that is equipped with a cover latch indicator is described. The pod is constructed by a base, a cover, a latch means and an indicator...
6650769 Review station and appearance inspection device for checking semiconductor wafers  
A review station comprising a wafer chuck capable of turning by at least 270 degrees, and an X-Y stage that moves over a distance one-half the diameter of a semiconductor wafer. Each of four...
6639239 Angle rejection filter  
A method and apparatus reduces undesirable glints in an optical position alignment sensor designed to orient components. Collimated light is provided onto the component. A filter is positioned...
6566642 Image recording apparatus and image recording method  
In an image recording apparatus which records an image on a recording medium by moving (subscanning) the recording medium while the recording medium is scanned (main scanning) with a scanner, a...
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  
The invention provides a face position detection method and a face position detection apparatus which can perform detection of the face position of a substrate with high precision, even when a...
6542839 Apparatus and method for calibrating the position of a cassette indexer  
An apparatus and a method for calibrating the position of a cassette indexer in a semiconductor process machine are described. The apparatus is constructed by a base plate, a top plate and at least...
6538252 Method and device for determining the alignment of line formations in areal, especially longitudinally moved, webs of a structural formed body  
In a method for determining alignment of line formations of a web, a radiation source emitting radiation and a detector with numerous radiation sensors for sensing the radiation are provided. The...
6525332 Method for detecting and compensating disk tilt and apparatus used it  
This invention relates to a method for detecting and compensating the disk tilt of an optical disk and an apparatus using it. The disk tilt causes the coma which degrades the carrier-to-signal...
6521906 Method and apparatus for measuring the distortion angle of a strip of textile, wherein a sensor array scans at progressively altered angles  
Method of measuring a distortion angle between the longitudinal extent of the weft threads or rows of stitches in a textile strip (T) that is being continuously transported in a transporting...
6512578 Method and apparatus for surface inspection  
A surface inspection apparatus of the present invention comprises: an illumination optical system 100 which is fixed at a first predetermined angle with respect to a wafer 3 and which irradiates a...
6459092 6 degree-of-freedom (DOF) motion measuring apparatus  
A 6 degree-of-freedom (DOF) motion measuring apparatus using a multidirectional reflector, and a swing arm type optical system using the 6-DOF motion measuring apparatus to measure the 6-DOF motion...
6137566 Method and apparatus for signal processing in a laser radar receiver  
An apparatus for receiving signals from a photodetector in a photodetector array. The apparatus has a number of comparators (e.g. 5) connected to the photodetector. each photodetector in the array...
6043502 Apparatus and method for sensing an insertion state of a wafer in a cassette  
An apparatus for sensing an insertion state of a wafer disposed in a slot of a wafer cassette, includes a stage supporting the wafer cassette that is movable relative to a light beam source and...
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  
5990567 System for in-line monitoring of photo processing tilt in VLSI fabrication  
An integrated de-focus pattern provides an effective in-line monitor for photo processing steps of integrated circuit wafers. The de-focus pattern is formed on an integrated circuit wafer in the...
5964564 Method and apparatus for detecting cross-slotted objects  
An apparatus for displacing and detecting cross-slotted objects includes a cradle mounted to a frame, the cradle being sized and shaped to hold a tray of objects in slots. As the cradle rotates on...
5895928 Automatic document presence, width and skew detection method and apparatus for a document scanner  
A document scanner method and apparatus is provided which allows for the detection of the presence and size of a document to be scanned. The scanner would also determine whether the document being...
5801823 Driver's eyes location determining apparatus and method  
Apparatus for determining the location of the eyes of a driver for a vehicle having a central inside rearview mirror, comprises a distance sensor, an orientation detector, a signal processor. The...
5737063 Projection exposure apparatus  
Disclosed is a projection exposure apparatus which is able to realize stabilized focusing control which presents highly followable performances for the photosensitive substrate with few...
5717491 Process and device for determining the center-line of a curvature  
Method and device for ascertaining the spacing of the center line of curvature of a concave body surface 3a and 5a, which is curved in the shape of a conical envelope, in particular the spacing of...
5691921 Thermal sensors arrays useful for motion tracking by thermal gradient detection  
An object tracking and motion control system includes a thermal marking unit such as a laser for inducing localized thermal indicia on objects. A thermal tracking unit, typically a micro electro...
5676477 Sheet carrying apparatus  
A sheet carrying apparatus reduces skew of a sheet during carriage, and realizes high-quality print. A position detecting sensor detects a position in a direction perpendicular to a sheet carrying...
5646414 Method and apparatus for measuring distortion angle of weft in textiles  
A method and apparatus in which an optical system is reciprocally rotated by a constant angular speed motor, while the signal coming from the fabric weft is processed in time measured from the...
5510892 Inclination detecting apparatus and method  
An inclination detecting apparatus is for detecting an inclination of a front surface of a transparent wafer placed on a perpendicular to an optical axis of a projection objective in an exposure...
5479006 Positioning skew compensation for imaging system using photoconductive material  
A system for compensating for positioning errors in the scanning and digital readout of latent electrostatic images on a photoconductive structure. The photoconductive structure is placed in a...
5406074 Noninvasive, remote eye position and orientation measurement system using light beams normal to the surface of the eye  
Photodetectors (18, 19) and light beam sources (10) are arranged near the field-of-regard (30) such that beams (12) are reflected from the viewer's eyes back to the photodetectors. For each beam,...
5389778 Photoelectric conversion circuit having a tuning circuit and changeover switches  
A photoelectric conversion circuit which can detect only signal light from applied light, to avoid influence by disturbance light. An anode of a photodiode (1) is grounded and an input end of a...
5381021 Sheet alignment device having a display for indicating a reason for rejecting the sheet  
An automatic banknote machine includes a selector for receiving rectangular sheets, in particular, banknotes, and for conveying them along for further processing. The selector comprises an input...
5329132 Positioning device with linear scanning and angled code lines  
Positioning device equipped with a linear scanning device and at least one support with at least one contrasting code line provided on it. A useful part thereof is directed at an angle other than...
5313054 Method and device for determining the orientation of a solid  
In an optical device for determining parameters that give the orientation of any solid within a given space, a first solid is fitted with at least one single-beam device producing a beam of light...
5302834 Optical pickup and tilt control device including a plurality of photosensitive units for generating signals indicating whether tilt correction is necessary  
An optical pickup for reading information recorded on a recording surface of an optical information storage medium has a light beam source for emitting a linear light beam, and an optical system...
5302833 Rotational orientation sensor for laser alignment control system  
A laser alignment control system is provided for aligning a rotational portion of a machine tool to a master part. The system includes a laser emitter that is mountable to one of the components...
5294805 Method and apparatus for analyzing tracking error in magnetic tapes  
A method and apparatus for analyzing tracking errors in magnetic tape. The apparatus and method allow for distinguishing between those errors in track configuration due to rotational errors (i.e.,...
5280179 Method and apparatus utilizing an orientation code for automatically guiding a robot  
A machine-readable orientation code is provided on the surface of an object to enable determination of the orientation of the object. The orientation code is imaged onto a scanning matrix...
5278424 Apparatus and method for correcting an offset value contained in an output of a turning angular velocity sensor  
A heading of a vehicle is detected by correcting an output of a gyro with an offset value stored in an offset memory. A location detecting unit estimates a current location of the vehicle by dead...
5239182 Wafer conveyor apparatus and method for detecting inclination of wafer inside cassette  
A wafer conveyor apparatus which moves a wafer moving device which moves wafers housed in a wafer cassette and performs conveyance the wafers, comprises a first arm provided with a light emitting...
Matches 1 - 50 out of 116 1 2 3 >