Patent ID: 8868815

Claim:
An information processing device comprising: a first bus supporting a first specification; a second bus supporting a second specification; a third bus supporting the first specification; a reader unit for reading information from a recording medium; a connection switch through which the first bus and the third bus are switchably connected to the reader unit; a first control section for communicating with the reader unit through the first bus and the connection switch; a conversion unit through which the second bus is connected to the third bus, for converting incoming signals conforming to the first specification, obtained from the third bus, to outgoing signals conforming to the second specification and sending the outgoing signals conforming to the second specification on the second bus, and converting incoming signals conforming to the second specification, obtained from the second bus, to outgoing signals conforming to the first specification, and sending the outgoing signals conforming to the first specification on the third bus; and a second control section for communicating with the reader unit through the second bus, the conversion unit, the third bus, and the connection switch; wherein when the first bus is connected to the reader unit through the connection switch, the second control section halts communication with the conversion unit.