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. 16, 2010
Filed:
Jun. 10, 2005
Applicants:
Minehisa Nagata, Hyogo, JP;
Satoshi Tagiri, Osaka, JP;
Izumi Usuki, Osaka, JP;
Shinya Kemi, Osaka, JP;
Hiroaki Niimi, Osaka, JP;
Shunsuke Kuhara, Osaka, JP;
Inventors:
Minehisa Nagata, Hyogo, JP;
Satoshi Tagiri, Osaka, JP;
Izumi Usuki, Osaka, JP;
Shinya Kemi, Osaka, JP;
Hiroaki Niimi, Osaka, JP;
Shunsuke Kuhara, Osaka, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04M 1/66 (2006.01);
U.S. Cl.
CPC ...
Abstract
It is possible to prevent an unauthorized read-out from both active tags and passive tags. Antenna emission is turned on and off by using a switch, or attenuated by using a resistor. A part of the antenna may be chipped. With these configurations, it is possible to lower the emission level of the antenna thus preventing an unauthorized read-out of important information from a remote reader.