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. 28, 2017
Filed:
Feb. 20, 2017
Applicant:
Sick Ag, Waldkirch, DE;
Inventor:
Florian Pudenz, Waldkirch, DE;
Assignee:
SICK AG, Waldkirch, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06K 19/00 (2006.01); H01Q 7/08 (2006.01); G06K 19/07 (2006.01); G06K 19/077 (2006.01);
U.S. Cl.
CPC ...
G06K 19/0726 (2013.01); G06K 19/07779 (2013.01);
Abstract
An antenna () for an RFID reading apparatus is provided having at least one single CLL antenna (), wherein a single CLL antenna () is an antenna that has an inner antenna loop () and a capacitively loaded antenna loop () which surrounds the inner antenna loop () and into which a capacitance (is introduced. In this respect, the antenna () has a plurality of single CLL antennas (-) that are differently oriented and has a feed circuit () to operate the single CLL antennas (-) for generating a circular polarization with a respective phase offset.