Pulse generating apparatus

Claim 1

APPARATUS FOR PRODUCING PULSES WHICH BEAR A DESIRED TIME RELATIONSHIP TO A CYCLICALLY-RECURRING INPUT WAVE HAVING LEADING AND TRAILING EDGES THE SLOPE OF WHICH CONTAINS AN APPRECIABLE HORIZONTAL COMPONENT, AND APPARATUS COMPRISING: (A) A MAGNETIZABLE MEMBER COMPOSED OF FERROMAGNETIC MATERIAL AND CHARACTERIZED BY THE POSSESSION OF A HYSTERESIS LOOP HAVING A RISING PORTION WHICH EXTENDS SUBSTANTIALLY VERTICALLY; (B) A CONDUCTOR TO WHICH SAID CYCLICALLY-RECURRING INPUT WAVE IS APPLIED; (C) SAID MAGNETIZABLE MEMBER LYING IN THE ELECTROMAGNETIC FIELD OF FLUX ESTABLISHED AROUND SAID CONDUCTOR DURING THE CYCLIC RECURRENCE OF SAID INPUT WAVE; (D) SAID INPUT WAVE BEING OF SUFFICIENT AMPLITUDE TO INDUCE PERIODIC SATURATION OF SAID MEMBER WITHIN A TIME PERIOD THE DURATION OF WHICH IS DETERMINED BY THE AMOUNT THAT THE RISING PORTION OF THE SAID HYSTERESIS LOOP DEPARTS FROM THE VERTICAL; (E) WHEREBY THE RAPID CHANGE OF FLUX IN SAID MEMBER DURING SATURATION THEREOF WILL CREATE A CORRESPONDING CHANGE IN ELECTROMAGNETIC FIELD INTENSITY IN THE REGION IMMEDIATELY SURROUNDING SAID MEMBER; (F) MEANS FOR BIASING SAID MAGNETIZABLE MEMBER SO AS TO PARTIALLY SATURATE THE LATTER AND HENCE SHIFT, TIMEWISE ALONG THE SLOPE OF SAID INPUT WAVE, THE PERIOD DURING WHICH SAID MEMBER IS PERIODICALLY SATURATED BY SAID INPUT WAVE; AND (G) MEANS FOR DETECTING SUCH CHANGE IN FIELD INTENSITY IN THE FORM OF AN OUTPUT PULSE THE WIDTH OF WHICH IS DETERMINED BY THE DURATION OF THE SAID TIME PERIOD AND THE AMPLITUDE OF WHICH IS AN INVERSE FUNCTION OF SUCH DURATION.