Wireless terminal and method for mutual locking and unlocking with user recognition card

Abstract

The present invention discloses a wireless terminal and a method that realizes the interlock and unlock between wireless terminal users and user identification cards. The described wireless terminal includes interlocked judgment module, the interlocking implementation module; the above mentioned interlocking could be descripted as follows. When wireless terminals boot, if the wireless terminals and user identification card is judged in the state of interlocking, the wireless terminal would generate a random number, set this random number as a new personal identification code, then write into the user identification card, and stored in the wireless terminal. The unlocking of ireless terminals includes: generating unlocking code and inputting it into wireless terminals; entering non-interlocked state if unlock code is judged correct by wireless terminals. The unlocking of users identification card includes: changes user identification card or personal identification numbers. The presentinvention realizes the 'automatic' interlocked function of the card in the true sense, and the wireless terminal and user identification card independent during unlocking , so they have a high degreeof freedom of unlocking, effectively avoid the flexible shortcomings of unlocking other card interlocking methods after interlocking.

Description

technical field [0001] The invention relates to a wireless terminal, in particular to a wireless terminal and a method for interlocking and unlocking the wireless terminal and a user identification card. Background technique [0002] At present, more and more operators are launching low-cost wireless terminals, and some new marketing methods have emerged, such as free mobile phones with pre-stored credit. In order to ensure that users use the network within a fixed period of time, thereby recovering the cost, the method of "machine-card interlocking" can be used to achieve this purpose. The fixed wireless terminal and the user identification card are locked. After locking, the wireless terminal Only the corresponding user identification card can be used, and then the corresponding unlocking operation can be performed. [0003] At present, the way to achieve machine-card interlocking is that a wireless terminal is locked corresponding to a user identification card. After loc...

AI Technical Summary

Problems solved by technology

There are two disadvantages of this method: one is that the user identification card needs to be inserted into the wireless terminal before the machine-card interlock operation, that is to say, the corresponding user must be prepared when the machine-card interlock operation is to be performed on the wireless terminal. Identification card; the second is to insert the corresponding user identification card into the wireless terminal when unlocking. If the user identification card cannot be obtained, the wireless terminal cannot be unlocked.

Therefore, the realization process of machine-card interlock and unlocking is more complicated.

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