Telecommunications – Radiotelephone system – Security or fraud prevention
Reexamination Certificate
2005-03-04
2009-10-27
Rampuria, Sharad (Department: 2617)
Telecommunications
Radiotelephone system
Security or fraud prevention
C455S411000, C455S435100, C455S558000, C455S419000, C713S171000, C380S247000
Reexamination Certificate
active
07610039
ABSTRACT:
An International Mobile Equipment Identification (IMEI) is coded and then stored in a user equipment (UE), wherein an authorized user is allowed to change the existing IMEI. When an IMEI is inputted, the UE generates a security code and stores the IMEI and the generated security code in a memory. Thereafter, if a second security code and IMEI is inputted, the UE determines whether the inputted security code is identical with the pre-stored security code. If the two security codes are identical with each other, the UE generates a third security code and stores the IMEI and the generated third security code. Thus, unauthorized IMEI storage is prevented. Accordingly, the IMEI coding method of the mobile UE can prevent unauthorized use of the UE while allowing the IMEI to be re-coded without hardware alteration.
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Lee Hong Degerman Kang & Waimey
LG Electronics Inc.
Rampuria Sharad
LandOfFree
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