Patent №
US 4,496,971
Granted
1985-01-29
Filed 1982
Owner
NATIONAL RESEARCH DEVELOPMENT CORPORATION, A BRITISH CORP
+1 more
Lab
—
AI components
2
vision · planning
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
06398880
Printed circuits can be inspected by eye, which is fatiguing or automatically by comparison with a master pattern by optical super-imposition, which requires great precision in handling. In the present invention analysis of optical scanning of a pattern determines the directions of boundaries of features of the pattern and employs this analysis to identify any local divergence from the prevailing direction of the boundary.
AI classification
Ownership
NATIONAL RESEARCH DEVELOPMENT CORPORATION, A BRITISH CORP
assignment · 43150550
BACHEM FEINCHEMIKALIEN AG
assignment · 69460217
Assignors
WEST, GEOFFREY A. W., NORTON-WAYNE, LEONARD
On an employer assignment, the assignors are typically the inventors.