(under subclass 214) Subject matter employing a nonreciprocal circuit of the type that produces at one point the positive inversion of the impedance at a second point (i.e., a positive impedance inverter).
(1) Note. GYRATOR: A gyrator is a four-terminal, two-port nonreciprocal network which may be defined as follows:
[figure]
wherein R1 and R2[end subscrpt] are transfer impedances whose product determines the gyration constant K.
