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. 30, 2010
Filed:
Oct. 11, 2005
Ken Satoh, Saitama, JP;
Hisao Kumai, Chiba, JP;
Touru Sugayama, Tokyo, JP;
Junji Hiraide, Chiba, JP;
Haruo Hinode, Chiba, JP;
Ken Satoh, Saitama, JP;
Hisao Kumai, Chiba, JP;
Touru Sugayama, Tokyo, JP;
Junji Hiraide, Chiba, JP;
Haruo Hinode, Chiba, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
Data falsification or the like is prevented and security is enhanced in an IC tag. The IC tag consists of three portions: separable portions Aand A, and a non-separable portion B (tag main body). The portions A, A, and B include IC, IC, and IC, and antenna, antenna, and antenna, respectively, the antennas being an interface between the tag and the outside (a reader/writer device for the exchange of data with the tag). IC() and IC() are connected by a signal line Lfor signal transmission between IC() and IC(). IC() and IC() are connected by a signal line Lfor signal transmission between IC() and IC(). Upon separation of Afrom the tag main body, the signal line Lis also severed. Similarly, upon separation of Afrom the tag main body, the signal line Lis severed. Each time the separable portions are separated in the order of Ato A, the separation of Aor Ais detected, and the function of the tag is changed from the first function to the third function sequentially.