A weighted summing circuit for minimizing bias voltage influence includes capacitive coupling and a closed loop inverter. The weighted summing circuit inputs the output of a capacitive coupling CP.sub.1 to serially connected first and second inverters INV.sub.1 and INV.sub.2, and includes grounded weighted...http://www.google.com/patents/US5465064?utm_source=gb-gplus-sharePatent US5465064 - Weighted summing circuit
