Invention Grant
- Patent Title: Wireless communication system and method
- Patent Title (中): 无线通信系统及方法
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Application No.: US11520852Application Date: 2006-09-14
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Publication No.: US07801491B2Publication Date: 2010-09-21
- Inventor: Shigeru Hatakeyama , Shigeru Yamazaki , Hiroki Murayama , Koichi Hirano
- Applicant: Shigeru Hatakeyama , Shigeru Yamazaki , Hiroki Murayama , Koichi Hirano
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2005-271187 20050916
- Main IPC: H04B7/00
- IPC: H04B7/00 ; H01Q19/10
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.
Public/Granted literature
- US20070063908A1 Wireless communication system and method Public/Granted day:2007-03-22
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