Abstract: A programmable a fully-differential programmable gain amplifier for reducing distortion, switching transients and interference, and improving bandwidth. In one embodiment, the amplifier includes a programmable gain module, an amplifier coupled to the current mode outputs and a data latch circuit of the programmable gain module, the amplifier configured to apply common mode voltage to the data latch circuit, and a current-to-voltage converter. In one embodiment, the fully-differential programmable gain amplifier controls distortion and switching interference during amplification by sensing common mode signals to produce an error signal, and applying the resulting error signal to the programmable gain module for multiplying digital to analog conversion.

Abstract: An traffic detection system (TDS) can receive an information signal associated with a sensed vehicle. The vehicle may be sensed on a roadway by one or more sensors. The system can identify data within the received signal indicative of characteristics of the vehicle, and determine a classification of the vehicle based on at least the characteristics of the vehicle. Additionally or alternatively, the system may determine a traffic pattern associated with the roadway based on at least the determination of the classification of the vehicle.