Methods for detecting and classifying signals transmitted over a radio frequency spectrum

E Livsics, MA McHenry, D Dain, K Steadman… - US Patent …, 2011 - Google Patents
US PATENT DOCUMENTS second threshold is applied to confirm the absence according to
the percentage of power above the second threshold. The 3,893,064 A 7, 1975 Nishihara et …

Methods for using a detector to monitor and detect channel occupancy

MA McHenry, D Dain, J Livsics, K Steadman… - US Patent …, 2011 - Google Patents
US8027249B2 - Methods for using a detector to monitor and detect channel occupancy -
Google Patents US8027249B2 - Methods for using a detector to monitor and detect channel …

Method and system for determining spectrum availability within a network

MA McHenry, AE Leu - US Patent 8,064,840, 2011 - Google Patents
US8064840B2 - Method and system for determining spectrum availability within a network -
Google Patents US8064840B2 - Method and system for determining spectrum availability within …

Method for transferring chat messages by establishing chat room data transfer channel

L Mu, J Wang - US Patent 7,904,521, 2011 - Google Patents
US7904521B2 - Method for transferring chat messages by establishing chat room data
transfer channel - Google Patents US7904521B2 - Method for transferring chat messages …