发明名称 |
Reader for a high information capacity SAW identification tag and method of use thereof |
摘要 |
The present invention provides for a surface acoustic wave (SAW) identification tag reader and for methods of operating and manufacturing the same. In one embodiment, the SAW identification tag reader includes: (1) a transmitter capable of sending an interrogation signal that excites a SAW transducer located on a piezoelectric substrate, the piezoelectric substrate having a group of slots arranged by both pulse position and phase position, and a number of reflectors distributed among the slots such that the reflectors return to the transducer a return signal containing a number encoded by both pulse position and phase position; and (2) a receiver for detecting the return signal and decoding the number. |
申请公布号 |
US2003141366(A1) |
申请公布日期 |
2003.07.31 |
申请号 |
US20020066249 |
申请日期 |
2002.01.30 |
申请人 |
RF SAW COMPONENTS, INCORPORATED |
发明人 |
HARTMANN CLINTON S. |
分类号 |
G06K19/067;(IPC1-7):G06K7/08;G06K7/10;G06K7/14 |
主分类号 |
G06K19/067 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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