METHOD AND APPARATUS FOR REMOTE DETECTION OF RADIO-FREQUENCY DEVICES

申请公布号：US2012071105(A1)

申请号：US20070842264

申请日期：2007.08.21

申请公布日期：2012.03.22

申请人：

WALKER AARON LAEL;BUFF, III PETER MARCUS

发明人：WALKER AARON LAEL;BUFF, III PETER MARCUS

分类号：H04W24/00

主分类号：H04W24/00

摘要：Methods and apparatus for detecting the presence of electronic communications devices, such as cellular phones, are disclosed. In an exemplary method, a complex radio frequency stimulus is transmitted into a target area, and nonlinear reflection signals received from the target area are processed to obtain a response measurement. The response measurement is compared to a pre-determined filter response profile to detect the presence of a radio device having a corresponding filter response characteristic. In some embodiments, the pre-determined filter response profile comprises a pre-determined band-edge profile, so that comparing the response measurement to a pre-determined filter response profile comprises comparing the response measurement to the pre-determined band-edge profile to detect the presence of a radio device having a corresponding band-edge characteristic.

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