Phase coded signal receiver

Claim 1

APPARATUS ADAPTED TO RECEIVE A PLURALTIY OF PHASE CODED PULSED CARRIER SIGNALS AND OPERATIVE TO SELECTIVELY RESPOND TO A DESIRED ONE OF SAID CARRIER SIGNALS, SAID APPARATUS INCLUDING MEANS FOR RECEIVING SAID CARRIER SIGNALS, MEANS FOR GENERATING A LOCAL PHASE CODED SIGNAL HAVING THE SAME PHASE CHARACTERISTICS AS SAID DESIRED CARRIER SIGNAL, MEANS CONNECTED TO SAID MEANS FOR RECEIVING AND TO SAID MEANS FOR GENERATING FOR CROSS-CORRELATING THE RECEIVED PULSE SIGNALS WITH SAID LOCAL SIGNAL TO PRODUCE A PULSED OUTPUT SIGNAL PROPORTIONAL IN AMPLITUDE TO A FUNCTION OF THE INSTANTANEOUS PHASE ANGLES BETWEEN SAID RECEIVED SIGNALS AND SAID LOCAL SIGNAL, PULSE GATING MEANS CONNECTED TO RECEIVE SAID PULSED OUTPUT SIGNAL AND OPERATIVE TO PASS SAID PULSED OUTPUT SIGNAL IN RESPONSE TO CONTROL PULSES, SAID SOURCE FOR GENERATING SAID LOCAL SIGNAL INCLUDING A SOURCE OF CONTROL PULSES, MEANS FOR CONNECTING SAID CONTROL PULSE SOURCE TO SAID GATING MEANS, FIRST AND SECOND SIGNAL INTEGRATING MEANS, SWITCHING MEANS COUPLED TO SAID GATING MEANS AND TO BOTH SAID SIGNAL INTEGRATING MEANS FOR ALTERNATIVELY CONNECTING SAID GATING MEANS TO A DIFFERENT ONE OF SAID SIGNAL INTEGRATING MEANS ACCORDING TO WHETHER OR NOT SAID SWITCHING MEANS IS ENERGIZED, SAID SWITCHING MEANS BEING ENERGIZED FOR A PORTION OF THE TIME THAT SAID GATING MEANS IS RENDERED OPERATIVE, MEANS CONNECTED TO BOTH SAID SIGNAL INTEGRATING MEANS FOR MONITORING THE AMPLITUDE AND POLARITY OF THE SIGNALS STORED IN SAID SIGNAL INTEGRATING MEANS, SAID MONITORING MEANS PRODUCING AN OUTPUT SIGNAL WHEN BOTH SAID SIGNALS STORED IN SAID SIGNAL INTEGRATING MEANS ARE SIMULTANEOUSLY OF THE SAME POLARITY, AND INDICATING MEANS CONNECTED TO SAID MONITORING MEANS AND ADAPTED TO RECEIVE SAID OUTPUT SIGNAL.