218992 ⎘
Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal; Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop combined with means for controlling the frequency of a further oscillator, e.g. for negative frequency feedback or AFC
Phase noise compensation apparatus and method and receiver
#2Receiver and wireless communication apparatus
#3Angle demodulation apparatus, local oscillation apparatus, angle demodulation method, local oscillation signal generating method, recording medium and computer data signal