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. 21, 2010
Filed:
Sep. 14, 2006
Shigeru Hatakeyama, Tokyo, JP;
Shigeru Yamazaki, Tokyo, JP;
Hiroki Murayama, Tokyo, JP;
Koichi Hirano, Tokyo, JP;
Shigeru Hatakeyama, Tokyo, JP;
Shigeru Yamazaki, Tokyo, JP;
Hiroki Murayama, Tokyo, JP;
Koichi Hirano, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A wireless communication system includes: a main antenna for radiating an electromagnetic wave to wireless IC chips; a reflecting plate for reflecting the electromagnetic wave from the main antenna to the wireless IC chips; and a control unit which supports the wireless IC chips. The control unit causes a difference between the receiving electromagnetic wave levels of a direct wave from the main antenna and a reflected wave from the reflecting plate received by the antenna of the wireless IC chip.