发明名称 |
PASSIVE TRANSPONDER IDENTIFICATION SYSTEM AND CREDIT-CARD TYPE TRANSPONDER |
摘要 |
<p>A passive transponder identification system and credit card type transponder are disclosed, particularly, the transponder identification system to utilize a transmitting manner of two different RF signals is provided. The present invention directly relates to a passive transponder without any kind of power source. Therefore, the present invention has advantages of having a constant gain value by developing a high-gain dual polarizing antenna for a small credit card type passive tranponder to identify at long distance, independently to any direction of the transponder; improving gain values than conventional transponder tag antenna by 6-9dB to ensure a sub-permanent life time by providing the desired identification performance by means of a small credit card type passive transponder without power supply; and being applicable to any systems to identify and distinguish high-speed moving objects.</p> |
申请公布号 |
WO0203560(A1) |
申请公布日期 |
2002.01.10 |
申请号 |
WO2001KR00928 |
申请日期 |
2001.06.01 |
申请人 |
CREDIPASS CO.,LTD.;KIM, JI-TAE;JEONG, DONG-SEOK |
发明人 |
KIM, JI-TAE;JEONG, DONG-SEOK |
分类号 |
B42D15/10;G06K7/00;G06K17/00;G06K19/00;G06K19/07;G06K19/077;H01Q5/10;H01Q9/26;H01Q9/28;H01Q13/10;H01Q21/29;H01Q21/30;H04B1/59;(IPC1-7):H04B1/59 |
主分类号 |
B42D15/10 |
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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