(under subclass 50) Subject matter wherein the comparison by amplitude (a) includes a device performing Boolean functions such as AND, OR, or exclusive-OR, or (b) utilizes a device having two stable states.
(1) Note. The combination of logic with specific amplitude comparison circuitry or function, not elsewhere classified is classified here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
185+, for particular stable state circuits including
bistable.
SEE OR SEARCH CLASS
326, Electronic Digital Logic Circuitry,
93+, for clocking or synchronizing of one or more logic stages and appropriate subclasses for general digital logic circuitry not classified elsewhere.