基本信息:
- 专利标题: SIGNAL-PROCESSING SYSTEMS AND METHODS FOR RFID-TAG SIGNALS
- 专利标题(中):用于RFID标签信号的信号处理系统和方法
- 申请号:PCT/US2007/025597 申请日:2007-12-13
- 公开(公告)号:WO2008076354A2 公开(公告)日:2008-06-26
- 发明人: DOWNIE, John D. , SUTHERLAND, James S. , NEDERLOF, Leo , WAGNER, Richard E. , WHITING, Matthew S.
- 申请人: CORNING CABLE SYSTEMS LLC , DOWNIE, John D. , SUTHERLAND, James S. , NEDERLOF, Leo , WAGNER, Richard E. , WHITING, Matthew S.
- 申请人地址: 800 17th Street NW P. O. Box 489 Hickory, NC 28601 US
- 专利权人: CORNING CABLE SYSTEMS LLC,DOWNIE, John D.,SUTHERLAND, James S.,NEDERLOF, Leo,WAGNER, Richard E.,WHITING, Matthew S.
- 当前专利权人: CORNING CABLE SYSTEMS LLC,DOWNIE, John D.,SUTHERLAND, James S.,NEDERLOF, Leo,WAGNER, Richard E.,WHITING, Matthew S.
- 当前专利权人地址: 800 17th Street NW P. O. Box 489 Hickory, NC 28601 US
- 代理机构: ROBERSON, Keith A.
- 优先权: US11/638,894 20061214
- 主分类号: G06K7/00
- IPC分类号: G06K7/00
摘要:
Systems and methods for reading a RFID-tag signal in the presence of noise and other propagation and circuit impairments using a RFID-tag reader are disclosed. The method includes receiving with a RFID-tag reader multiple copies of an original RFID-tag signal from a RFID tag. The original RFID-tag signal comprises an original bit sequence representative of information stored in the RFID tag. At least some of the received RFID-tag signal copies differ from one another due to noise or other signal impairments. The received multiple copies are processed on a sample-by-sample basis in the RFID-tag reader using digital signal processing techniques to obtain an improved received digitized RFID tag signal that substantially removes the noise and other impairments. This improved signal is used to recover the original bit sequence and thus the information stored in the RFID tag.
摘要(中):
公开了使用RFID标签读取器在存在噪声和其他传播和电路损伤的情况下读取RFID标签信号的系统和方法。 该方法包括用RFID标签读取器从RFID标签接收多个原始RFID标签信号的副本。 原始RFID标签信号包括表示存储在RFID标签中的信息的原始位序列。 由于噪声或其他信号损伤,至少一些接收到的RFID标签信号副本彼此不同。 使用数字信号处理技术在RFID标签读取器中逐个采样地处理所接收的多个副本以获得改进的接收到的数字化RFID标签信号,其基本上消除了噪声和其他损伤。 这种改进的信号用于恢复原始位序列,并因此恢复存储在RFID标签中的信息。 p>
IPC结构图谱:
G | 物理 |
--G06 | 计算;推算;计数 |
----G06K | 数据识别;数据表示;记录载体;记录载体的处理 |
------G06K7/00 | 读出记录载体的方法或装置 |