Large-capacity SIM storage medium with built-in user identification function

Abstract

The invention discloses a high-capacity SIM storage medium with a built-in user identification function, and the storage medium comprises a central processing unit, a sequence read-write module, a radio frequency communication module, a data storage module, an integrated circuit board and an anti-interference module; when an SIM card A is lost or stolen, an SIM card B sends a key request to a base station processor to freeze the use of the SIM card A; the base station processor calls the data stored in the base station encryption database for comparison, when the information is correct, the base station processor can temporarily freeze the use permission of the SIM card A, then a user goes offline to a communication company for rehandling; through the above operations, financial fraud by a bad person through communication means such as information fraud after the mobile phone is lost can be avoided, and the vital interests of a mobile phone owner are maintained; during radio frequency communication, interference of a peripheral electromagnetic field can be prevented, communication quality is improved, and meanwhile, a protected circuit can be prevented from being damaged by electrostatic discharge and being permanently damaged and invalid.

Description

technical field [0001] The invention relates to the technical field of SIM memory cards, in particular to a large-capacity SIM storage medium with a built-in user identification function. Background technique [0002] With the rapid development of mobile communication technology, the functions of communication terminals have also made continuous leaps. In order to meet the requirements of different people, a large number of communication terminals supporting dual-card dual-standby and / or dual-network dual-standby functions have appeared on the market. Dual-card dual-standby refers to dual-SIM card standby that only supports a single network, while dual-network dual-standby is another form of dual-card dual-standby, which can support SIM cards of two different network standards to be standby at the same time. It is the abbreviation of Subscriber Identity Module, that is, customer identification module, also known as smart card and user identification card. [0003] With the ...

AI Technical Summary

Problems solved by technology

[0003] With the intelligentization of mobile phones, various communication fraud solutions appear. After the mobile phone is lost or stolen, it is not uncommon to use the user's mobile phone to commit fraud after the mobile phone is stolen, which affects the protection of the user's vital interests. , the present invention provides an anti-theft SIM storage medium that can prevent such cases from happening

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