发明名称 |
System and method of reducing noise in an electronic shelf label system |
摘要 |
A system and method of reducing noise in an electronic shelf label system which shifts operation of the receiver away from noise frequencies. The system includes a controller for receiving signal levels and noise levels at different frequencies from a homodyne receiver, and for shifting operation of the receiver away from noise frequencies.
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申请公布号 |
US6980784(B1) |
申请公布日期 |
2005.12.27 |
申请号 |
US20020270935 |
申请日期 |
2002.10.15 |
申请人 |
NCR CORPORATION |
发明人 |
DALTON GARY C.;ADAMEC ANDREW J. |
分类号 |
H04B1/10;(IPC1-7):H04B1/10 |
主分类号 |
H04B1/10 |
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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