Smart card reader and its use method

Abstract

The invention provides a card reader of an intelligent card and a use method thereof. The card reader of an intelligent card includes a treatment unit which receives communication information by a USB interface circuit and a plurality of intelligent card interface circuits connected with the treatment unit; wherein, the treatment unit includes a communication module, a sequence number treatment module and a route module; the sequence number treatment module can exchange information with the communication module; the route module exchanges information with the sequence number treatment module and the intelligent card interface circuits. The method includes as follows: the communication module receives the communication information provided with the sequence numbers of the intelligent card interface circuits transmitted by a computer and transmits to the sequence number treatment module; the sequence number treatment module separates the sequence numbers of the interface circuits from the communication information for forming sequence number information and communication data and transmitting the sequence number information and the communication data to the route module; the route module transmits the communication data to the corresponding intelligent card according to the sequence number information. The invention can simultaneously carry out the operations of reading and writing on a plurality of intelligent cards and can improve the production efficiency of the intelligent cards.

Description

technical field [0001] The invention relates to a data reading and writing device, in particular to a smart card reader and a method for reading and writing smart cards using the card reader. Background technique [0002] Along with the development of mobile communication technology, the use of mobile phone is very popular, and mobile phone mostly uses detachable smart card to carry out communication, as SIM card, UIM card etc. Before the smart card is installed in the mobile phone, the smart card manufacturer and the mobile communication operator need to write initial data into the smart card, such as the operating system, so that the smart card can realize basic functions. [0003] Most smart card manufacturers use smart card readers to write initial data to smart cards. The electrical schematic block diagram of an existing smart card reader is shown in figure 1 As shown, the smart card reader has a USB interface circuit 1 , a processing unit 2 , a storage unit 3 and a sm...

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Problems solved by technology

[0007] However, since the existing smart card reader is only provided with a smart card interface circuit 4, the computer can only communicate with one smart card at a time, that is, it can only write data to a smart card at a time.

When mass-producing smart cards, it is necessary to write data to multiple smart cards. If the existing smart card reader is used for card writing operation, it is necessary to insert the smart cards into the smart card reader one by one, and write each smart card one by one. Read and write operations are not convenient for high-efficiency production

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