发明名称 |
Mobile radio frequency identification (mRFID) reader |
摘要 |
A mobile radio frequency identification (mRFID) reader having a receiving circuit is provided. The receiving circuit includes a local oscillator which generates a carrier signal at a predetermined frequency band; a mixer which mixes a tag signal received from a tag with the carrier signal, to lower a frequency of the tag signal; a phase adjusting block which adjusts a phase of the carrier signal by determining a phase of the tag signal; and a control block which processes the tag signal through a series of operations, and controls an operation of the phase adjusting block to compensate for a phase delay of the tag signal according to an output of the processed tag signal. Because the mRFID reader can be provided as small as a half size of a related art reader, a mobile communication terminal accommodating the mRFID reader can be compact-sized. Additionally, because the number of components for the receiving circuit decreases, not only the power consumption but also the unit price can be reduced. |
申请公布号 |
US7825773(B2) |
申请公布日期 |
2010.11.02 |
申请号 |
US20070702490 |
申请日期 |
2007.02.06 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KOO SI-GYOUNG;KANG WOO-SHIK;LEE HEUNG-BAE |
分类号 |
H04Q5/22;G08B13/14;H04B1/00;H04B7/00;H04B17/02 |
主分类号 |
H04Q5/22 |
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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