| 发明名称 |
MEMORY CARD AND CELLULAR PHONE |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a productive memory card with RFID function capable of ensuring a communication distance without impairing portability. <P>SOLUTION: The arrangement position of an antenna coil 5 is set to the outside of portable information equipment to extend the communication distance of an RFID to be integrated. A resonance capacitor is connected to both ends of the antenna coil. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
| 申请公布号 |
JP2005018671(A) |
申请公布日期 |
2005.01.20 |
| 申请号 |
JP20030186101 |
申请日期 |
2003.06.30 |
| 申请人 |
HITACHI LTD |
发明人 |
OKAWA TAKEHIRO;YOSHIKI HIROSHI;KUWANA TOSHIYUKI;SATO YUTAKA |
| 分类号 |
G06K19/077;G06K19/07;H01Q1/24;H01Q7/04;H04B5/02;H04M1/02 |
主分类号 |
G06K19/077 |
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