Abstract: A multichannel dynamic range adaptor (102) includes a multichannel signal input (116) for carrying an input signal with an input bandwidth spanning multiple communication channels, and a multichannel signal attenuator (118) connected to the multichannel signal input (116). The multichannel signal attenuator (118) includes a signal output (120) and a signal attenuation input (134) responsive to an attenuation control signal. The multichannel signal attenuator (118) is adapted to provide, on the signal output (120), an output signal corresponding to the input signal reduced in dynamic range in accordance with the attenuation control signal. The output signal dynamic range is generally constrained to be no greater than the dynamic range capability (e.g., 60 dB or less) of an analog to digital (A/D) converter (122) coupled to the multichannel signal attenuator (118) for digitizing the output signal.

Abstract: A multichannel signal amplitude equalizer (102) includes a multichannel signal input (112) that carries an input signal with an input bandwidth spanning multiple communication channels. The equalizer also includes a multichannel equalizer (114) connected to the multichannel signal input (112) and that includes a signal output (116). The multichannel equalizer (114) connects to an equalizer control input (130) for regulating the multichannel equalizer (114) to attenuate selected frequency bands in the input signal. As a result, the signal output (116) carries, as an output signal, the input signal reduced in dynamic range. The equalizer (102) generally includes an analog to digital (A/D) converter (122) coupled to the multichannel equalizer (114) for digitizing the output signal. The A/D converter (122) is characterized by an A/D converter dynamic range that is at least equal to the output signal dynamic range and a bandwidth at least equal to the input bandwidth.

Abstract: A trailer suspension system eliminating jackknifing of the towing tractor and trailer assembly, providing stability to the trailer and more efficient braking especially during emergency stops and materially increasing vehicle maneuverability. Steering control is provided by a connection with the towing tractor in laterally offset relation to the vertical pivot axis formed by the kingpin and fifth wheel articulate connection between the towing tractor and trailer.