Patent ID: 6931241

Claim:
A communications receiver adapted to receive and process information transmitted as either a wide band signal or a narrow band signal having In-phase-Quadrature-phase (IQ) modulation of a carrier, comprising: means for detecting a portion of the spectrum wide enough to encompass the bandwidth (BW) of a wide band carrier signal means for converting the wide band carrier to baseband in I and Q components, each component having a bandwidth of BW/2, and for converting the I and Q components into further I and Q components to form sub-components II, IQ, QI, and QQ, where each of the sub-components has a bandwidth of BW/4- and may contain a portion of the originally transmitted information, means operable in a wideband mode for separately processing each of the sub-components to extract portions of the originally transmitted information, and means operable in a narrowband mode for separately processing each of the sub-components containing information within the narrow band transmitted carrier to extract portions of the originally transmitted information, and means for recombining the extracted information to reconstruct the originally transmitted information.