Patent ID: 7929508

Claim:
A wireless local area network (WLAN) device comprising: a transmitter unit operable to transmit RF signals via a network; and a receiver unit coupled to the transmitter unit and operable to receive RF signals via the network, wherein the receiver unit comprises: a spectral scan unit operable to generate a plurality of spectral data captures comprising time-frequency data and receive signal strength indicator (RSSI) data associated with an RF signal received at the WLAN device; and a classification unit operable to process the time-frequency and RSSI data of each of the plurality of spectral data captures to determine whether each spectral data capture is a narrowband signal capture; wherein, if the plurality of spectral data captures are narrowband signal captures, the classification unit is operable to determine a narrowband signal type associated with the received RF signal based, at least in part, on a plurality of parameters associated with the narrowband signal captures; wherein, in a first mode of operation, the WLAN device is operable to decode the received RF signals for WLAN traffic and transmit WLAN traffic, and in a second mode of operation, the WLAN device is operable to perform spectral analysis and classification operations on the received RF signals.