Target generator device

Claim 1

A TARGET GENERATOR FOR PRODUCING A PLURALITY OF SIMULATED TARGET SIGNALS, WHEN SUPPLIED WITH A SAWTOOTH RANGE SWEEP SIGNAL WHOSE AMPLITUDE AT ANY TIME IS PROPORTIONAL TO THE RANGE, A D.C. TARGET RANGE SIGNAL WHOSE AMPLITUDE IS PROPORTIONAL TO THE RANGE OF A SIMULATED TARGET, AND A PULSE WIDTH SELECTION SIGNAL, COMPRISING: SAWTOOTH RANGE SWEEP TRANSMITTING MEANS, FOR TRANSMITTING SAID SAWTOOTH RANGE SWEEP SIGNAL; TARGET RANGE TRANSMITTING MEANS, FOR TRANSMITTING SAID TARGET RANGE SIGNAL; RANGE PULSE WIDTH SELECTION TRANSMITTING MEANS FOR TRANSMITTING SAID PULSE WIDTH SELECTION SIGNAL; RANGE SUMMING MEANS, COUPLED TO SAID SAWTOOTH RANGE TRANSMITTING MEANS AND SAID TARGET RANGE TRANSMITTING MEANS, FOR PRODUCING A POSITIVE OUTPUT SIGNAL, WHEN THE TARGET RANGE SIGNAL EQUALS THE RANGE SWEEP SIGNAL; AMPLIFIER MEANS, COUPLED TO SAID RANGE SUMMING MEANS, FOR AMPLIFYING SAID POSITIVE OUTPUT SIGNAL FROM SAID RANGE SWEEP MEANS; FIRST PULSE GENERATING MEANS, COUPLED TO SAID AMPLIFIER MEANS, FOR PRODUCING A FIRST OUTPUT PULSE OF A FIRST PULSE WIDTH UPON THE OCCURRENCE OF AN OUTPUT SIGNAL FROM SAID AMPLIFIER MEANS; FIRST AND MEANS, COUPLED TO THE OUTPUT OF SAID FIRST PULSE GENERATING MEANS AND SAID RANGE PULSE WIDTH FROM SAID AMPLIFIER MEANS; FIRST AND MEANS, COUPLED TO THE OUTPUT OF SAID FIRST PULSE GENERATING MEANS AND SAID RANGE PULSE WIDTH THEREOF; SECOND PULSE GENERATING MEANS, COUPLED TO THE OUTPUT OF SAID FIRST AND CIRCUIT, FOR PRODUCING A SECOND OUTPUT PULSE OF A SECOND PULSE WIDTH, DELAYED IN TIME BY APPROXIMATELY THE WIDTH OF THE FIRST PULSE, UPON THE OCCURRENCE OF AN OUTPUT SIGNAL FROM SAID FIRST AND MEANS; AND, OR MEANS, HAVING TWO INPUTS, EACH OF WHICH IS COUPLED TO ONE OF THE CUTPUTS OF SAID FIRST AND SECOND PULSE GENERATING MEANS, FOR PRODUCING AN OUTPUT SIGNAL WHENEVER THERE IS AT LEAST ONE SIGNAL PRESENT AT ANY INPUT THEREOF.