Abstract: An apparatus for continuously winding a plurality of inductors with insulated wire on an elongated bobbin in a manner such that portions of the wire that will locate at specified locations has its insulation is removed prior to wrapping. The apparatus includes a rotating device for turning the bobbin, a feedscrew for imparting a controlled pitch on the winding, a suspension system running the wire from a wire spool to the bobbin, and a means for removing insulation from the portions of the wire that will locate at the specified locations.

Abstract: An ultrasound blood flow imaging system employing a moving-target-type Doppler processor having a passband extending from zero hertz to the repetition frequency of the pulses generated and processed during each beam. The system is able to image low-velocity blood flow by reducing the frequency at which pulses are generated and processed during each beam, thereby increasing the gain of the flow processor at low frequencies. In order to avoid a corresponding decrease in the frame rate, the ultrasound pulses for several beams are alternately generated and processed in interleaved sequence rather than generating and processing all of the ultrasound pulses for each beam before generating and processing ultrasound pulses for the next beam.