Phase equalizer concatenated with transversal equalizer wherein both are automatically controlled to minimize pulse distortion and minimize burden of transversal filter

Claim 1

APPARATUS FOR CORRECTING PHASE-DISTORTION IMPOSED UPON A COMMUNICATION SIGNAL OF MULTIPLE FREQUENCY CONTENT BY A TRANSMISSION MEDIUM COMPRISING A PULSE SIGNAL SOURCE CONNECTED TO ONE END OF SAID TRANSMISSION MEDIUM, A VARIABLE PHASE-SHIFT NETWORK CONNECTED TO THE OTHER END OF SAID TRANSMISSION MEDIUM, A TAPPED DELAY LINE DRIVEN BY SAID NETWORK, MEANS FOR NORMALIZING THE OUTPUTS FROM EACH TAP ON SAID DELAY LINE, FIRST MEANS FOR SUMMING AND STORING THE NORMALIZED OUTPUTS OF ALL TAPS TO ONE SIDE OF THE CENTER TAP WHEN THE PEAK PULSE AMPLITUDE IS DETECTED AT THE REMOTEST TAP ON THE OTHER SIDE OF SAID DELAY LINE, SECOND MEANS FOR SUMMING THE NORMALIZED OUTPUTS OF ALL TAPS TO THE OTHER SIDE OF THE CENTER TAP WHEN THE PEAK PULSE AMPLITUDE IS DETECTED AT THE REMOTEST TAP ON THE ONE SIDE OF SAID DELAY LINE, THIRD MEANS FOR SUMMING THE STORED OUTPUT OF SAID FIRST SUMMING AND STORING MEANS AND THE SUM OUTPUT FROM SAID SECOND SUMMING MEANS, AND MEANS RESPONSIVE TO THE OUTPUT OF SAID THIRD SUMMING MEANS FOR ADJUSTING SAID PHASE-SHIFT NETWORK.