Assignee
MEDAR INC
US31 patents
Top patents by PatentIndex Score
US5751450AMay 12, 1998
Method and system for measuring color difference
MEDAR INC169 citations99
US5940296AAug 17, 1999
Method and system for interactively developing a graphical control-flow structure and associated application software for use in a machine vision system
MEDAR INC133 citations98
US5821993AOct 13, 1998
Method and system for automatically calibrating a color camera in a machine vision system
MEDAR INC97 citations98
US5646733AJul 8, 1997
Scanning phase measuring method and system for an object at a vision station
MEDAR INC147 citations97
US5636025AJun 3, 1997
System for optically measuring the surface contour of a part using more fringe techniques
MEDAR INC204 citations95
US5742504AApr 21, 1998
Method and system for quickly developing application software for use in a machine vision system
MEDAR INC242 citations93
US6016161AJan 18, 2000
Method and system for automatically calibrating a color-based machine vision system
MEDAR INC46 citations92
US5969753AOct 19, 1999
Method and system for detecting errors in a sample image
MEDAR INC48 citations92
US5764386AJun 9, 1998
Method and system for automatically monitoring the colors of an object at a vision station
MEDAR INC35 citations92
US6342686B1Jan 29, 2002
Method for determining a condition of a resistance spotwelding system or a workpiece in the system
MEDAR INC20 citations91
US6225590B1May 1, 2001
Method for determining a condition of a resistance spotwelding system or a workpiece in the system
MEDAR INC19 citations91
US5701179ADec 23, 1997
Method and system for measuring dimensions of an edge of a part
MEDAR INC25 citations91
US5715051AFeb 3, 1998
Method and system for detecting defects in optically transmissive coatings formed on optical media substrates
MEDAR INC38 citations90
US5753903AMay 19, 1998
Method and system for controlling light intensity in a machine vision system
MEDAR INC43 citations89
US4849873AJul 18, 1989
Active snubber for an inverter
MEDAR INC32 citations86
US4885451ADec 5, 1989
Automatic stepper for resistance welding
MEDAR INC18 citations73
US5793243AAug 11, 1998
Method of stabilizing an electronic signal integrator
MEDAR INC12 citations72
US5757176AMay 26, 1998
Method and system for controlling output current of a large, low-voltage, DC power supply and obtaining diagnostic information from the operation thereof
MEDAR INC9 citations72
US4851635AJul 25, 1989
Method and apparatus for determining the power factor of a circuit
MEDAR INC14 citations72
US4804819AFeb 14, 1989
Structure and method for resistance welding with an inductively coupled power source
MEDAR INC14 citations72
US5694384ADec 2, 1997
Method and system for measuring Kerr rotation of magneto-optical medium
MEDAR INC7 citations71
US5128507AJul 7, 1992
Weld control structure for and method of delaying initiation of a weld
MEDAR INC8 citations71
US5815255ASep 29, 1998
Method and system for measuring deflection angle of a beam of light reflected from a disk to determine tilt of the disk
MEDAR INC8 citations69
US5757978AMay 26, 1998
Method and system for detecting localized birefringence defects in a dynamic global birefringence field
MEDAR INC10 citations66
US4831229AMay 16, 1989
High frequency resistance spot welding structure and method
MEDAR INC2 citations61
US4513363AApr 23, 1985
Structure for and method of reducing impedance in multiphase direct current power supplies
MEDAR INC2 citations61
US5424506AJun 13, 1995
Structure for and method of weld control
MEDAR INC3 citations60
US5589088ADec 31, 1996
Method of regulating DC current in resistance welders
MEDAR INC12 citations59
US5982479ANov 9, 1999
Method for calibrating a tilt inspection system and reference disk assembly for use therein
MEDAR INC4 citations56
US5955855ASep 21, 1999
Method and system for tuning a drive to its coupled motor to minimize motor resonance and sensing device for use therein
MEDAR INC4 citations51
US4733045AMar 22, 1988
Method of and structure for high speed resistance seam welding
MEDAR INC1 citations51