(under subclass 401) Subject matter wherein a ferroresonant circuit will flip to one stable state at a predetermined first voltage as the potential at the input increases, and will flip back to the other stable state at a predetermined second voltage (lower than the first voltage) as the potential of the input is decreasing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
289+, for flip-flop systems in general.
414, for magnetic flip-flop used as trigger devices.
415, for magnetic flip-flop used as switching devices.
SEE OR SEARCH CLASS
365, Static Information Storage and Retrieval, 72, 154, 190, and 205 for various flip-flops utilized in a static memory system.