Receiver utilizing phase-locked parametric amplifier

Claim 1

SIGNAL TRANSLATING APPARATUS COMPRISING: (A) A PARAMETRIC AMPLIFIER HAVING A SIGNAL INPUT, AN OUTPUT, AND A PUMP INPUT, (B) MEANS FOR SUPPLYING A SIGNAL TO SAID SIGNAL INPUT AT A SIGNAL FREQUENCY, (C) A VOLTAGE CONTROLLED OSCILLATOR OPERATING AT SAID SIGNAL FREQUENCY AND HAVING AN OUTPUT AND A CONTROL INPUT, (D) A FREQUENCY DOUBLER HAVING AN INPUT CONNECTED TO THE OUTPUT OF SAID VOLTAGE-CONTROLLED OSCILLATOR HAVING AN OUTPUT CONNECTED TO SAID PUMP INPUT, (E) A SECOND OSCILLATOR HAVING AN OUTPUT AND OPERATING AT A GIVEN FREQUENCY, (F) A FIRST MIXER HAVING ONE INPUT CONNECTED TO THE OUTPUT OF SAID VOLTAGE-CONTROLLED OSCILLATOR AND ANOTHER INPUT CONNECTED TO THE OUTPUT OF SAID SECOND OSCILLATOR, (G) SECOND MIXING MEANS HAVING ONE INPUT CONNECTED TO THE OUTPUT OF SAID PARAMETRIC AMPLIFIER AND AN OTHER INPUT CONNECTED TO THE OUTPUT OF SAID FIRST MIXER, SAID MIXING MEANS BEING ADAPTED TO PRODUCE AN OUTPUT AT SAID GIVEN FREQUENCY, (H) A PHASE DETECTOR HAVING ONE INPUT CONNECTED TO THE OUTPUT OF SECOND OSCILLATOR AND ANOTHER INPUT CONNECTED TO RECEIVE THE OUTPUT OF SAID SECOND MIXING MEANS, SAID PHASE DETECTOR BEING ADAPTED TO PRODUCE AN OUTPUT VOLTAGE RELATED TO THE PHASE RELATIONSHIP OF SIGNALS AT ITS INPUTS, (I) AND MEANS CONNECTING THE OUTPUT VOLTAGE OF SAID PHASE DETECTOR TO THE CONTROL INPUT OF SAID VOLTAGECONTROLLED OSCILLATOR.