Shaping the power density spectra of pulse trains

Claim 1

APPARATUS FOR TRANSFORMING THE POWER DENSITY SPECTRUM OF A UNIPOLAR TRAIN OF TIME SLOTS OCCUPIED BY RESPECTIVE PULSES AND SPACES INTO ONE WITH A BROAD NULL AT AN INTERGRAL SUBMULTIPLE OF THE BASIC REPETITION FREQUENCY OF SAID TIME SLOTS AND WITH THE BULK OF THE POWER BELOW SAID INTERGRAL SUBMULTIPLE OF SAID FREQUENCY WHICH COMPRISES A PLURALITY OF CONVERSION CHANNELS, MEANS TO ROUTE THE CONTENTS OF SUCCESSIVE TIME SLOTS OF SAID TRAIN INTO DIFFERENT ONES OF SAID CHANNELS IN SEQUENCE, A PAIR OF AND GATES IN EACH OF SAID CHANNELS EACH HAVING A PAIR OF INPUTS AND A SINGLE OUTPUT, MEANS IN EACH OF SAID CHANNELS TO GENERATE A PULSE DURING EACH OF THE ROUTED TIME SLOTS OCCUPIED BY A SPACE, A BINARY COUNTER IN EACH OF SAID CHANNELS HAVING A SINGLE INPUT AND A PAIR OF OUTPUTS OF RESPECTIVELY OPPOSITE POLARITY, MEANS IN EACH OF SAID CHANNELS TO DELAY THE GENERATED PULSES UNTIL THE NEXT ROUTED TIME SLOT AND SUPPLY THE DELAYED PULSES TO THE INPUT OF SAID BINARY COUNTER, MEANS IN EACH OF SAID CHANNELS TO SUPPLY THE CONTENTS OF THE ROUTED TIME SLOTS AND ONE OF THE OUTPUTS OF SAID BINARY COUNTER TO THE RESPECTIVE INPUTS OF ONE OF SAID AND GATES, MEANS IN EACH OF SAID CHANNELS TO SUPPLY THE CONTENTS OF THE ROUTED TIME SLOTS AND THE OTHER OF THE OUTPUTS OF SAID BINARY COUNTER TO THE RESPECTIVE INPUTS OF THE OTHER OF SAID AND GATES, MEANS IN EACH OF SAID CHANNELS TO COMBINE THE OUTPUTS OF SAID AND GATES IN PHASE OPPOSITION TO ONE ANOTHER, AND MEANS TO COMBINE THE CONTENTS OF ALL TIME SLOTS FROM ALL OF SAID CHANNELS IN THEIR ORIGINAL ORDER OF OCCURRENCE IN SAID UNIPOLAR TRAIN.