The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 1987
Filed:
Oct. 03, 1983
Francis G Bardwell, Elmhurst, IL (US);
Stewart-Warner Corporation, Chicago, IL (US);
Abstract
A pattern tracer with circuitry for electronically adjusting the lateral offset of the tracing element for kerf compensation, that produces a control signal based on a temporal relationship between a reference signal and a pattern detection signal associated with a preselected kerf compensation. The pattern is traced with the selected lateral offset in accordance with a control signal. The control signal is developed in response to both a line width compensation signal and a kerf compensation signal. A photometric detector is calibrated by electronically adding a compensation angle to a pattern detection angle to compensate for any physical misalignment of the detector.