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. 19, 2017
Filed:
Nov. 29, 2011
Monitoring unit and method for monitoring position signals of incremental position-measuring devices
Ingo Joachimsthaler, Traunstein, DE;
Thomas Mueller, Seebruck, DE;
Thomas Schuermann, Rosenheim, DE;
Ingo Joachimsthaler, Traunstein, DE;
Thomas Mueller, Seebruck, DE;
Thomas Schuermann, Rosenheim, DE;
DR. JOHANNES HEIDENHAIN GMBH, Traunreut, DE;
Abstract
In a monitoring unit for monitoring position signals of incremental position-measuring devices, at least two position signals are applied on the input side that result from the scanning of an incremental graduation track by a scanning unit and that are out-of-phase with each other. The monitoring unit includes a signal logic unit with which at least two position-dependent status data words are able to be generated from different position signals, and an evaluation unit to which the status data words are supplied, in which invalid statuses are ascertainable by comparing the status data words, and an error signal is able to be generated in response to an ascertained invalid status.