Multiphase differential-phase-modulated pcm repeater

摘要: THIS INVENTION RELATES TO APPARATUS AND METHOD FOR DETECTING A 2N-PHASE DIFFERENTIAL-PHASE-MODULATED PCM SIGNAL IN WHICH THE RELATIVE PHASE SHIFT BETWEEN SIGNALS ADJACENT TIME SLOTS IS $ (2M-1) $/2N RADIANS, WHERE 2N NUMBER OF POSSIBLE PHASES,AND M SIGNIFIES ALL INTEGERS ONE N INCLUSIVE. DETECTION INVOLVES DIVIDING INPUT INTO COMPONENTS, THEN COMPARING EACH THESE COMPONENTS WITH NEXT SUCCEEDING SLOT. DONE BY DELAYING SAID SPECIFIED LENGTH DEPENDS UPON STATES. PRODUCED AS RESULT COMPARISONS ARE AMPLITUDE-DETECTED MEANS PAIR OPPOSITELY-POLED AMPLITUDE DETECTORS, COMBINED COMMON IMPEDANCE PRODUCE BASEBAND WHICH, WHEN TAKEN TOGETHER, CONTAIN INFORMATION NECESSARY REGENERATE SIGNAL. PARTICULAR, INDICATES SIGN ($) WHEREAS SUM OTHER (N-1) MAGNITUDE SHIFT.