发明申请
US20070229269A1 SYSTEM AND METHOD FOR MITIGATING INTERFERENCE BY RADIO FREQUENCY IDENTIFICATION AND ELECTRONIC ARTICLE SURVEILLANCE SYSTEMS WITH IMPLANTABLE CARDIAC DEVICES
审中-公开
用于减轻无线电频率识别干扰的系统和方法和具有可移植心脏设备的电子文章监视系统
- 专利标题： SYSTEM AND METHOD FOR MITIGATING INTERFERENCE BY RADIO FREQUENCY IDENTIFICATION AND ELECTRONIC ARTICLE SURVEILLANCE SYSTEMS WITH IMPLANTABLE CARDIAC DEVICES
- 专利标题（中）： 用于减轻无线电频率识别干扰的系统和方法和具有可移植心脏设备的电子文章监视系统
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申请号： US11695521申请日： 2007-04-02
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公开(公告)号： US20070229269A1公开(公告)日： 2007-10-04
- 发明人: Robert A. Morris
- 申请人： Robert A. Morris
- 申请人地址： US WA Everett
- 专利权人： INTERMEC IP CORP.
- 当前专利权人： INTERMEC IP CORP.
- 当前专利权人地址： US WA Everett
- 主分类号： G08B13/14
- IPC分类号： G08B13/14 ; G08B21/00 ; G01R13/00
摘要：
A radio frequency identification (RFID) system includes a tag reader configured to interrogate RFID tags in repeated transmission pulses, and a monitor module configured to monitor a transmission pulse rate of the RFID. When a pulse rate falling within a selected frequency range is detected, the monitor module is configured to modify the pulse rate to produce a transmission pulse rate that falls outside of the selected frequency range. Modification may include, for example, any of shortening an off-period between transmission pulses, shortening the transmission pulses, and introducing single electromagnetic spikes between transmission pulses. The monitor module may also be configured to interrupt operation of the system upon detection of a pulse rate falling within the selected frequency range, or to produce a signal indicating a detected pulse rate falling within the selected frequency range. The system may include a plurality of tag readers configured to interrogate RFID tags sequentially.
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