Frequency divider circuit

Claim 1

A FREQUENCY DIVIDER CIRCUIT FOR DIVIDING THE FREQUENCY OF A FIRST SIGNAL DOWN TO A SECOND SIGNAL OF A DESIRED LOWER FREQUENCY COMPRISING A SEMICONDUCTOR DEVICE HAVING MEANS CONNECTED THERETO FOR OPERATING SAID DEVICE AS A SELECTIVE AMPLIFIER AT THE FREQUENCY OF THE SECOND SIGNAL, SAID SEMICONDUCTOR DEVICE HAVING BASE, EMITTER AND COLLECTOR ELECTRODES, SAID FIRST SIGNAL BEING APPLIED TO SAID BASE ELECTRODE, A FREQUENCY SELECTIVE CIRCUIT CONNECTED TO SAID COLLECTOR ELECTRODE, SAID SEMICONDUCTOR DEVICE PRODUCING A QUANTITY OF SAID SECOND SIGNAL AT THE DESIRED LOWER FREQUENCY AND SAID FREQUENCY SELECTIVE CIRCUIT BEING TUNED TO PRESENT A HIGH IMPEDANCE TO THE SEMICONDUCTOR AT THE DESIRED LOWER FREQUENCY WHEREBY THE SAID SECOND SIGNAL IS SELECTIVELY AMPLIFIED BY THE SEMICONDUCTOR DEVICE, MEANS CONNECTED BETWEEN SAID COLLECTOR AND BASE ELECTRODES FOR FEEDING BACK A PORTION OF THE AMPLIFIED SECOND SIGNAL AT THE COLLECTOR ELECTRODE TO THE BASE ELECTRODE TO MIX WITH THE FIRST SIGNAL AND TO FURTHER INCREASE THE AMOUNT OF THE SECOND SIGNAL AMPLIFIED BY THE SEMICONDUCTOR DEVICE, AND A FIRST DIODE CONNECTED BETWEEN SAID BASE AND EMITTER ELECTRODES FOR INCREASING THE MIXING ACTION OF THE FIRST AND SECOND SIGNALS.