发明申请
US20090224888A1 METHOD AND SYSTEM FOR OPTIMIZED READING OF A RADIO FREQUENCY COMMUNICATION TRANSPONDER WITH THE AID OF A PASSIVE RESONANT CIRCUIT
审中-公开
基本信息:
- 专利标题： METHOD AND SYSTEM FOR OPTIMIZED READING OF A RADIO FREQUENCY COMMUNICATION TRANSPONDER WITH THE AID OF A PASSIVE RESONANT CIRCUIT
- 专利标题（中）：无源频率通信交换机与无源通信电路的优化读取方法与系统
- 申请号：US12440849 申请日：2006-09-11
- 公开(公告)号：US20090224888A1 公开(公告)日：2009-09-10
- 发明人： Jean-Paul Caruana
- 申请人： Jean-Paul Caruana
- 申请人地址： FR Meudon
- 专利权人： Gemalto SA
- 当前专利权人： Gemalto SA
- 当前专利权人地址： FR Meudon
- 国际申请： PCT/EP2006/066252 WO 20060911
- 主分类号： H04Q5/22
- IPC分类号： H04Q5/22 ; G06K19/06
摘要：
The invention relates to a method of reading RF transponders disposed in one and the same magnetic interrogation field, in which a magnetic coupling of the transponders is ensured with a passive resonant circuit during reading. The method is distinguished in that the passive antenna of the resonant circuit is associated with at least one transponder antenna, and the passive resonant circuit is tuned in such a way that the resonant frequency resulting from the association corresponds to one of the frequencies of the emission side bands of the transponder to be read. The invention also relates to the system corresponding to the method, a transponder structure and an object containing the transponder, in particular a travel document.
摘要（中）：
本发明涉及一种读取设置在同一磁询问场中的RF转发器的方法，其中在读取期间通过无源谐振电路确保应答器的磁耦合。 该方法的区别在于，谐振电路的无源天线与至少一个应答器天线相关联，并且无源谐振电路被调谐成使得由该关联产生的谐振频率对应于发射频率之一 要读取的应答器的边带。 本发明还涉及对应于该方法的系统，应答器结构和包含应答器的对象，特别是旅行证件。
IPC结构图谱:
| H | 电学 |
| --H04 | 电通信技术 |
| ----H04Q | 选择 |
| ------H04Q5/00 | 两个或两个以上用户站由同一线路连接到交换机的选择装置 |
| --------H04Q5/02 | .为所有用户直接连接的，即同线电话系统 |
| ----------H04Q5/22 | ..附属交换中心不能把连接到该中心的用户互相连接 |