(under subclass 272) Subject matter with provision for correction or reduction of distortion or for removing or correcting for the effects of extraneous pulses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
284+, for antinoise or distortion in a phase shift keying system.
285, for antinoise or distortion in a pulse modulated carrier system.
313, for key click prevention in a keying circuit.
346+, for antinoise or distortion in pulse modulated carrier wave receivers.