(under the class definition) Subject matter in which the width of a transmitted pulse conveys the transmitted information.
SEE OR SEARCH CLASS
327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,
31+, for miscellaneous circuits providing pulse width or spacing discriminating and subclasses 172+ for miscellaneous rectangular or pulse waveform width control.
329, Demodulators,
312, for pulse width demodulators.
370, Multiplex Communications,
205, for a multiplexing system using both pulse width and pulse position modulations, and subclass 212 for a multiplexing system using pulse width modulation.