| 摘要 |
The objective of the invention is to provide a card reader that can prevent a function of performing a card process with respect to a magnetic card and a contact type IC card from becoming out-of-order temporarily and also can contribute to improvement in the speed of various processes including an authentication process and in security. The signal processing circuit having a function of recording or reproducing information with respect to a magnetic card, a contact type IC card, and a contact-less type IC card is provided to a card reader, and this signal processing circuit and a host device are electrically connected to each other via a single host interface.
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