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:
Oct. 22, 2013
Filed:
Oct. 07, 2011
Applicants:
Ralf Ulrich Nübling, Denzlingen, DE;
Roland Gehring, Elzach-Prechtal, DE;
Inventors:
Ralf Ulrich Nübling, Denzlingen, DE;
Roland Gehring, Elzach-Prechtal, DE;
Assignee:
Sick AG, Waldkirch, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A flicker-free illumination apparatus () for a code reader () has an illumination control () which is configured for a pulsed operation with an illumination intensity varying between light pulses () and pulse pauses (). The illumination control () is further configured to maintain a non-zero illumination intensity during the pulse pauses (), such that a basic intensity () remains.