Patent ID: 7281078

Claim:
An apparatus for validating valuable papers comprising: a conveyor for transporting valuable papers inserted into an inlet along a passageway; a validating sensor for detecting at least one optical or magnetic feature of the transported paper; a large capacity storage for previously storing information of the papers to produce an output of paper information; and a central processing unit connected to said validating sensor and large capacity storage for receiving the paper information from said validating sensor and information from the large capacity storage to compare the paper information with the information stored in the large capacity storage, validate authenticity of the papers and determine denomination of the papers in order to control said conveyor; said large capacity storage comprising a memory control device connected to said central processing unit and an addressing device connected to said memory control device; said memory control device comprising a plurality of bank memories each for storing information with the memory capacity addressable by said central processing unit and for supplying to said central processing unit the stored information with information address supplied from said central processing unit; and an information memory for storing the information addresses assigned to the information stored in each bank memory and bank addresses assigned to each bank memory, said bank address being contained in the information given from each bank memory to said central processing unit; wherein said addressing device comprises means for detecting and temporarily holding the bank address of the bank memory to be switched next, and means for forwarding the temporarily held bank address to said memory control device to switch the memory control device to the next bank memory when said central processing unit produces a switching signal; wherein said central processing unit comprises executing means for carrying out programs for transporting and validating the paper inserted into the inlet in view of the information stored in the bank memories; and further comprising CPU switching means for switching said memory control device from a current bank memory to one of the other bank memories to read out the information on genuine paper from said one of the other bank memories to said central processing unit for validating authenticity of a different paper coming under Category 1 or 2 so that said central processing unit validates authenticity of the paper in view of information on genuine paper read out from said one of the other bank memories.