基本信息:
- 专利标题: HOLDER INSERTING TYPE NON-CONTACT CARD SYSTEM
- 申请号:JP16750398 申请日:1998-06-15
- 公开(公告)号:JP2000003419A 公开(公告)日:2000-01-07
- 发明人: TAKAHASHI IKUO , YAMAZAKI HIROSHI
- 申请人: MITSUBISHI ELECTRIC CORP
- 专利权人: MITSUBISHI ELECTRIC CORP
- 当前专利权人: MITSUBISHI ELECTRIC CORP
- 优先权: JP16750398 1998-06-15
- 主分类号: G06K17/00
- IPC分类号: G06K17/00
摘要:
PROBLEM TO BE SOLVED: To provide a holder inserting type non-contact card system capable of easily controlling the resonance frequency of a reader/writer or controlling it in a state close to a practical using state and maximizing communication efficiency independently of the number of non-contact cards. SOLUTION: Since a reader/writer cover 4 is provided with a resonance coil 8a for a transmitting coil, a resonance frequency controlling capacitor 8b for the transmitting coil, a resonance coil 9a for a receiving coil, and a resonance frequency controlling capacitor 9b for the receiving coil and other circuits are not included in the cover 4, the resonance frequency can easily be controlled without requiring the decomposition of a reader/writer body 3 at the time of controlling the resonance frequency and the reduction of communication efficiency due to the shift of the resonance frequency can be prevented.
公开/授权文献:
- JP3481463B2 Holder plug-in non-contact card system 公开/授权日:2003-12-22