| 发明名称 |
RFID reader and RFID system |
| 摘要 |
The invention relates to an RFID reader having a transmitting antenna (102) and a receiving antenna (104), wherein the transmitting antenna is located a first distance (114) from the receiving antenna, wherein the transmitting antenna has transmitting antenna coils (106) situated in a first plane (108), and wherein the receiving antenna has receiving antenna coils (110) situated in a second plane (112), and having means (130, 132) for positioning an RFID document at a position located a second distance (148) from the transmitting antenna, wherein the transmitting antenna is situated between the receiving antenna and the position. |
| 申请公布号 |
US8872721(B2) |
申请公布日期 |
2014.10.28 |
| 申请号 |
US201013319360 |
申请日期 |
2010.06.08 |
| 申请人 |
Bundesdruckerei GmbH |
发明人 |
Tietke Markus;Fritze Frank;Fischer Jörg |
| 分类号 |
H01Q21/00;H01Q7/00;G06K7/10;G06K19/077;G06K7/00 |
主分类号 |
H01Q21/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An RFID reader comprising:
a transmitting antenna; a receiving antenna, wherein the transmitting antenna is located a first distance from the receiving antenna, wherein the transmitting antenna has transmitting antenna coils situated in a first plane, and wherein the receiving antenna has receiving antenna coils situated in a second plane, and a positioning device comprising a support surface located with respect to the transmitting coil such that an RFID document placed on the surface is located a second distance from the transmitting antenna, wherein the transmitting antenna is situated between the receiving antenna and the positioning device and wherein the second distance is at least 0.7 times the first distance and less than three times the first distance, such that the RFID document is supported at a known distance from the transmitting and receiving antenna coils. |
| 地址 |
Berlin DE |
