Patent ID: 6064737
Filing Date: 2000-05-16
Classification: G06F,G06K,G06Q,G06T,G07D,G07F,G10L,G11B,H04L,H04M,H04N,H04W,Y10T

Abstract:
In a method of detecting fraud in a wireless communications system, the system including a carrier facility and a plurality of wireless communications devices, each wireless communications device providing identification data to the carrier facility used by said facility in detecting fraudulent use of the device, the identification data comprising a plurality of symbols, each wireless device sending voice data corresponding to a user's voice to the carrier facility, an improvement comprising: altering the voice data to steganographically embed verification data therein, said verification data comprising a plurality of symbols; steganographically detecting said verification data from the voice data at the carrier facility, and using said detected verification data to confirm authorized use of the wireless device, wherein the user's voice data serves as the carrier of the verification data from the wireless device to the carrier facility.