Bridged-t time delay network

Claim 1

IN A STEREO COMMUNICATION SYSTEM HAVING A SIGNAL COMPRISING AN L+R SIGNAL AND A MODULATED L-R SIGNAL, AN L-R DETECTOR, MEANS COUPLING SAID SIGNAL TO SAID DETECTOR FOR OBTAINING AN L-R SIGNAL THEREFROM, A LOW PASS FILTER, A HIGH IMPEDANCE LOAD CIRCUIT, MEANS FOR COUPLING SAID LOW PASS FILTER BETWEEN SAID DETECTOR AND SAID LOAD CIRCUIT TO PROVIDE ACROSS SAID LOAD CIRCUIT A DELAYED L-R SIGNAL, A BRIDGED-T NETWORK INCLUDING AN INDUCTOR CONNECTED ACROSS A PAIR OF SERIES CONNECTED CAPACITORS AND ANOTHER INDUCTOR CONNECTED BETWEEN THE JUNCTION OF SAID CAPACITORS AND A POINT OF COMMON REFERENCE POTENTIAL, MEANS COUPLING SAID SIGNAL TO SAID BRIDGED-T NETWORK AND SAID BRIDGED-T NETWORK TO SAID LOAD CIRCUIT, THE PARAMETERS OF SAID BRIDGED-T NETWORK BEING SELECTED TO PROVIDE A DELAY TO THE L+R SIGNAL OF THE MAGNITUDE AS WAS INTRODUCED TO THE L-R SIGNAL BY SAID LOW PASS FILTER WHILE THE AMPLITUDE OF THE OUTPUT VOLTAGE TO THE INPUT VOLTAGE OF SAID BRIDGED-T NETWORK REMAINS CONSTANT OVER THE BAND OF FREQUENCIES WHICH ARE DESIRED TO BE DELIVERED TO SAID LOAD CIRCUIT.