Pulse position, frequency, phase or spacing demodulator:
(under subclass 311) Subject matter where the modulated signal input to the demodulator has undergone pulse position, frequency, phase or spacing modulation.
(1) Note. Pulse position, frequency, phase or spacing modulation are forms of pulse modulation where the characteristics being varied are the relative positions of the pulses, the frequency (repetition rate) of the pulses, the phase of the pulses, or the spacing (time) between the pulses.
SEE OR SEARCH CLASS
375, Pulse or Digital Communications,
239, or 340+ for a combination of pulse position, frequency or spacing demodulator with receiving structure.
