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:
Nov. 27, 2007
Filed:
Jan. 28, 2005
Reiner Burgschat, Jena, DE;
Manfred Matz, Jena, DE;
Reiner Burgschat, Jena, DE;
Manfred Matz, Jena, DE;
Other;
Abstract
A scanning device for scanning a scale graduation for detecting relative movements of the scanning device with respect to the scale graduation. The scanning device includes a first primary sensor field and a second primary sensor field used for detecting relative movements along a first spatial direction. A first secondary sensor field and a second secondary sensor field for detecting relative movements along a second spatial direction, which is linearly independent of the first spatial direction. The first primary sensor field, the second primary sensor field, the first secondary sensor field and the second secondary sensor field are arranged point-symmetrically in relation to a mid-point in a plane.