Smart memory card and method for visiting smart memory card

Abstract

The invention provides a smart memory card and a method for visiting the smart memory card. The smart memory card comprises a flash memory medium, a smart card module, and a controller, wherein the flash memory medium is provided with an application memory space for memorizing smart card application data, and a multimedia memory space for memorizing multimedia data; an application file mapping table is memorized in the smart card module, and correlates an application file name, a base address of the application memory space and status information of the application memory space; and the controller is used for creating the application memory space, establishing the application file mapping table, and memorizing the application file mapping table in the smart card module. The method comprises the steps that a corresponding relation between an application file and the application memory space in the flash memory medium is determined; the application file mapping table is established; and the application memory space is visited according to the application file mapping table. The smart memory card and the method solve the problems that the smart memory card is small in application memory space and cannot bear a large amount of novel application data, a smart card application area is extended into the flash memory medium, and the popularization of a novel application is facilitated.

Description

technical field [0001] The invention relates to the technical field of electronic applications, and more specifically relates to an intelligent storage card with expanded application storage space and a method for accessing the intelligent storage card. Background technique [0002] With the popularization of the Internet and the rise of e-commerce, the memory card no longer has a single storage function, but has expanded to become a carrier with multiple applications such as network identity authentication, electronic payment, electronic wallet, and bill certificate. Such a memory card embedded with a smart card module (abbreviated as a smart memory card) is widely used in various portable devices, such as mobile phones, notebook computers, digital cameras, personal digital assistants (PDAs) and multimedia players. [0003] The data stored in the smart memory card can be divided into smart card application data and multimedia data. For example, card ID, PIN, electronic wal...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a smart memory card, which virtualizes the flash memory medium as a smart card application storage space, so as to solve the problem that a new type of application with a large amount of data cannot be carried due to the small storage space of the smart card module; at the same time, it proposes a method for accessing the smart memory card, so that Peripherals can exchange data with application storage space in flash media through contact or contactless interfaces, improving user experience

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