Patent ID: 7606335
Filing Date: 2009-10-20
Classification: G01R,H04L,H04W

Abstract:
1. A method comprising: in a radio receiver device configured to receive radio frequency (RF) energy, storing peak data describing spectral characteristics comprising frequency location and bandwidth for each of one or more spectral peaks of RF energy detected by the radio receiver device over sampling cycles; in the radio receiver device, comparing the peak data for one or more peaks detected for a current sampling cycle with the peak data for one or more peaks detected during a previous sampling cycle; in the radio receiver device, based on said comparing, storing a list of signal pulse data describing one or more identified signal pulses, where a signal pulse of said one or more identified signal pulses comprises a sequence of spectral peaks having similar spectral characteristics over multiple time intervals; and updating the list by extending a duration of an existing signal pulse in the list with data for a spectral peak that has spectral characteristics which match data an existing signal pulse in the list, adding data for a new signal pulse to the list, or modifying the list to indicate termination of an existing signal pulse in the list.