Abstract: Method and system are provided to permit a user to access, via a network, a computer-implemented education module for teaching and testing radiation oncology skills. An education module may be directed to a particular skill, such as e.g., correctly identifying an anatomical region of interest in a stack of medical images. In one embodiment, education modules for teaching and testing radiation oncology skills may be made accessible to users via a portal user interface that can be rendered by a web browser application. An education module, according to one example embodiment, includes a video component for providing a video presentation describing the technique being taught, a practice module that provides an interactive practice session that can be initiated by a user after viewing the teaching video, and a test module.

Abstract: An offset correction circuit to correct DC offset in accordance with a data rate includes a detection circuit to detect a thermal asperity signal and a filter circuit to respond to the thermal asperity signal in accordance with the data rate.

Abstract: An equalizer circuit (11) and a method for adjusting tap weights in the equalizer circuit (11) to provide an equalized signal. The equalizer circuit (11) includes an adaptation circuit (16) coupled to an FIR filter (17) and to an error sign generating circuit (18). The FIR filter (17) provides the signs of a plurality of delay signals to the tap weight adaptation circuit (16). Likewise, the error sign generating circuit (18) provides a sign of the error of an output signal of the FIR filter (17) to the tap weight adaptation circuit (16). The tap weight adaptation circuit (16) uses the signs of the delay signals and the sign of the error signal to generate the tap weights which are passed to the FIR filter (17) for adjusting the tap weights of the FIR filter (17).

Abstract: A modular filter (11) that operates at low voltages and utilizes common mode feedback is described. The modular filter (11) receives an input differential signal and provides a filtered output differential signal. The modular filter (11) comprises a load circuit (15) , a first transconductor (18) , a second transconductor (24) , an amplifier (19), and a common mode amplifier (26). The first transconductor (18) has a transconductance gml and the second transconductor (24) has a transconductance g.sub.m2. The amplifier has a gain K. The modular filter (11) provides a transfer function of V.sub.o /V.sub.i =(g.sub.m1 /g.sub.m2)*((1+(sKC.sub.a /g.sub.m1))/(1+(s (C.sub.a +C.sub.b)/g.sub.m2)), where C.sub.a are capacitors (21 and 22) that capacitively couple outputs of the amplifier (19) to the load circuit (15) and C.sub.b are capacitors (27 and 28) that capacitively couples the output of the common mode amplifier (26) to the load circuit (15).