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. 28, 2010
Filed:
Jul. 24, 2007
Applicants:
Jong Moon Lee, Cheongju, KR;
Nae-soo Kim, Daejeon, KR;
Cheol Sig Pyo, Daejeon, KR;
Ik Guen Choi, Daejeon, KR;
Inventors:
Jong Moon Lee, Cheongju, KR;
Nae-Soo Kim, Daejeon, KR;
Cheol Sig Pyo, Daejeon, KR;
Ik Guen Choi, Daejeon, KR;
Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided are an antenna apparatus for linearly polarized diversity antennas in a radio frequency identification (RFID) reader, and a method of controlling the antenna apparatus. The antenna apparatus includes: a plurality of linearly polarized diversity antennas disposed to have different directions to one another; a switching unit connecting the linearly polarized diversity antennas to the RFID reader; and a controller controlling the switching unit to selectively activate the linearly polarized diversity antennas.