(under the class definition) Subject matter in which the information to be transmitted is conveyed by means of the relative position of the pulses in a series of transmitted pulses, the time or spacing between pulses, or the repetition rate (frequency) of the pulses.
SEE OR SEARCH CLASS
327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,
1+, for miscellaneous pulse characteristic discriminating and subclasses 100+ for miscellaneous pulse characteristic modifying.
329, Demodulators,
313+, for pulse rate or position demodulators.
332, Modulators, 112+, for a pulse position, frequency or spacing modulator, per se.
370, Multiplex Communications,
205, for a multiplexing system using both pulse width and pulse position modulations, and subclass 213 for a multiplexing system using pulse position modulation.
