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. 18, 2008
Filed:
Jan. 25, 2007
Bernhard Buck, Heidelberg, DE;
Eric Knopf, Heidelberg, DE;
Matthias Nöll, Weiterstadt, DE;
Malte Seidler, Heidelberg, DE;
Detleff Strunk, Heidelberg, DE;
Uwe Tessmann, Schwetzingen, DE;
Bernhard Buck, Heidelberg, DE;
Eric Knopf, Heidelberg, DE;
Matthias Nöll, Weiterstadt, DE;
Malte Seidler, Heidelberg, DE;
Detleff Strunk, Heidelberg, DE;
Uwe Tessmann, Schwetzingen, DE;
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
For the active compensation of oscillations in a machine which processes printing material, a signal which contains an oscillation of the machine or of a part of the machine is measured and at least one counter torque is introduced into the machine to reduce the oscillation. At least one measure for a ratio between the amplitude of the uncompensated oscillation and the amplitude of the counter torque necessary for complete compensation is compared with a threshold value. The counter torque is determined in a first functional relationship with the oscillation if the measure is greater than the threshold value, and the counter torque is determined in a second functional relationship with the oscillation, if the measure is smaller than the threshold value. In the machine, a regulating device is operated in a first or second operating mode in dependence on the measure of the ratio.