发明授权
- 专利标题： Methods and systems for activating a proximity information device
- 专利标题（中）： 用于激活邻近信息设备的方法和系统
-
申请号： US12352794申请日： 2009-01-13
-
公开(公告)号： US08314702B2公开(公告)日： 2012-11-20
- 发明人: Duncan Garrett , David Anthony Roberts , Colin Tanner
- 申请人： Duncan Garrett , David Anthony Roberts , Colin Tanner
- 申请人地址： US NY Purchase
- 专利权人： MasterCard International, Inc.
- 当前专利权人： MasterCard International, Inc.
- 当前专利权人地址： US NY Purchase
- 代理机构： Buckley, Maschoff & Talwalkar LLC
- 主分类号： G08B13/14
- IPC分类号： G08B13/14
摘要：
A proximity information device includes a body, a radio frequency identification (RFID) integrated circuit (IC) supported by the body, and a threshold detector coupled to the RFID IC. The RFID IC is operative to transmit a response message in response to an interrogation signal if the threshold detector indicates that a detected magnetic and electric field and the relative strength of magnetic field compared to the electric field satisfy a predetermined threshold.
公开/授权文献
信息查询
