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:
Jan. 11, 2005
Filed:
Aug. 19, 2002
Applicants:
Gakuji Uozumi, Omiya, JP;
Osamu Ishihara, Omiya, JP;
Tomohiro Mori, Omiya, JP;
Inventors:
Assignee:
Mitsubishi Materials Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1700 ;
U.S. Cl.
CPC ...
Abstract
An identifying system for overlapped tags, wherein one of the tags, e.g., a tag to be appended to an article, has an antenna coil and a radio frequency identification device (RFID) connected to the antenna coil. Two or more resonance capacitors are connected in parallel to each other and in parallel to the antenna coil and two or more switches electrically connect the two or more resonance capacitors to the antenna coil and to the RFID. A control circuit is configured to operate on-off controls of the two or more switches to change a resonance frequency of the identifying system.