Voltage generator producing constant amplitude, 90deg. phase-displaced sawtooth waveforms over wide range of output frequencies

Claim 1

A TWO-PHASE VOLTAGE GENERATOR COMPRISING IN COMBINATION: MEANS GENERATING A FIRST VOLTAGE OF RECTILINEAR, TIME-SYMMETRIC WAVEFORM, VARYING CYCLICALLY BETWEEN EXTREME VALUES, TRIGGER MEANS RESPONSIVE TO THE PASSAGE OF AN APPLIED VOLTAGE THROUGH PREDETERMINED THRESHOLD LEVELS TO DEVELOP A TWO-VALUED SIGNAL; MEANS APPLYING SAID FIRST VOLTAGE TO SAID TRIGGER MEANS, SAID THRESHOLD LEVELS BEING SUCH THAT TRANSITIONS FROM EACH SAID VALUE TO THE OTHER IN SAID OUTPUT SIGNAL OCCUR AT TIMES DIFFERING SUBSTANTIALLY EQUALLY FROM THE TIMES AT WHICH SAID FIRST VOLTAGE ATTAINS SAID EXTREME VALUES; INTEGRATING MEANS PRODUCING AN OUTPUT SIGNAL REPRESENTING THE TIME-INTEGRAL OF AN APPLIED VOLTAGE; AND MEANS APPLYING SAID TWO-VALUED SIGNAL TO SAID INTEGRATING MEANS, WHEREBY SAID INTEGRATING MEANS PRODUCES A SECOND CYCLICALLY REPETITIVE SIGNAL OF RECTILINEAR TIME-SYMMETRIC WAVEFORM SIMILAR TO SAID FIRST VOLTAGE BUT DISPLACED IN PHASE WITH RESPECT THERETO BY 90*.