Patent ID: 7853214

Claim:
A dynamic multi-path detection device comprising: at least one narrow-band signal metric estimator responsive to an input signal with an input signal bandwidth, each of the at least one estimators measuring a particular characteristic of the input signal within a bandwidth less than the input signal bandwidth and operative to generate a parameter estimate signal; and a signal metric comparison device responsive to the parameter estimate signal(s) and operative to generate a dynamic multi-path indication signal for detecting dynamic multi-path, wherein the signal metric comparison device includes, a summing device for summing the parameter estimate signals and operative to generate a metric difference signal; an absolute value device responsive to said metric difference signal and operative to generate an absolute metric difference signal; a first threshold comparison device and a second threshold comparison device, both coupled to receive the absolute metric difference signal, the first threshold comparison device operative to generate first threshold comparison signal and the second threshold comparison device operative to generate a second threshold comparison signal, and the signal metric comparison device further includes a counter responsive to the second threshold comparison signal and operative to generate a threshold comparison time signal; and a third threshold comparison device coupled to receive the threshold comparison time signal and operative to generate a third threshold comparison signal.