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:
Sep. 28, 1993
Filed:
Mar. 16, 1992
Applicant:
Inventor:
Dieter Baas, Kehl, DE;
Assignee:
Deutsche Thomson Brandt GmbH, Villingen-Schwenningen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
250561 ; 414274 ; 369 36 ;
Abstract
A method of adjusting the moveable unit of a positioning device having a light source and a photodetector for scanning markers identifying positions at which the moveable unit is to be located includes the steps of accurately and manually positioning the unit at one of the identifying positions. The unit is then automatically driven to a second position where the output signal of the photodetector is maximum. The deviation from the first position to the second position is stored as an offset which is subsequently used to accurately position the moveable unit.