Supervisory remote control and telemetering system

Claim 1

A DEVICE FOR THE SUBSTANTIALLY SIMULTANEOUS RADIO TRANSMISSION TO A CENTRAL STATION OF SERIES OF INFORMATION EMANATING TO A CENTRAL STATION OF SERIES OF INFORMATION MOTELY LOCATED FROM EACH OTHER AND FROM SAID CENTRAL STATION COMPRISING MEANS FOR TRANSMITTING A TRAIN OF REGULARLY SPACED INTERROGATING PULSES FROM SAID CENTRAL STATION, MEANS FOR MODULATING THE INTERROGATING PULSES WITH A FIRST CARRIER FREQUENCY, MEANS FOR CODING EACH INFORMATION VALUE ISSUING FROM AN INSTRUMENT AS AN ELECTRIC VALUE AT THE SAME TIME THAT THE CORRESPONDING INTERROGATING PULSE IS RECEIVED AWT THE INSTRUMENT WHEREIN THE CODED INFORMATION COMPRISES TIME INTERVALS BETWEEN EACH INTERROGATING PULSE AND A CORRESPONDING RESPONSE-PULSE, MEANS FOR TRANSMITTING FROM A SUBSTATION ASSOCIATED TO SAID INSTRUMENT, AFTER MODULATION WITH A SECOND CARRIER FREQUENCY, THE SEQUENTIALLY PRODUCED RESPONSE PULSES SO THAT A CYCLE OF RESPONSE PULSES COMPRISES A PLAURALITY OF INFORMATION VALUES WHICH IS EQUAL TO THE NUMBER OF INSTRUMENTS, THE ENTIRE SERIES OF INFORMATION BEING TRANSMITTED BY A PLURALITY OF SUCCESSIVE CYCLES, MEANS FOR RECEIVING THE SECOND FREQUENCY AT THE CENTRAL STATION, MEANS FOR DECODING AT THE CENTRAL STATION THE INFORMATION RECEIVED AT SAID SECOND FREQUENCY, SAID FIRST AND SECOND CARRIER FREQUENCIES BEING EQUAL, MEANS AT EACH SUBSTATION FOR DELAYING THE EMISSION OF ANY RESPONSE-PULSES UNTIL THE CORRESPONDING INTERROGATING PULSE HAS ARRIVED AT ALL OF THE SUBSTATIONS,

Claim 2

A DEVICE FOR THE SUBSTANTIALLY SIMULTANEOUS RADIO TRANSMISSION TO A CENTRAL STATION OF SERIES OF INFORMATION EMANATING TO A CENTRAL STATION OF SERIES OF INFORMATION MOTELY LOCATED FROM EACH OTHER AND FROM SAID CENTRAL STATION COMPRISING MEANS FOR TRANSMITTING A TRAIN OF REGULARLY SPACED INTERROGATING PULSES FROM SAID CENTRAL STATION, MEANS FOR MODULATING THE INTERROGATING PULSES WITH A FIRST CARRIER FREQUENCY, MEANS FOR CODING EACH INFORMATION VALUE ISSUING FROM AN INSTRUMENT AS AN ELECTRIC VALUE AT THE SAME TIME THAT THE CORRESPONDING INTERROGATING PULSE IS RECEIVED AWT THE INSTRUMENT WHEREIN THE CODED INFORMATION COMPRISES TIME INTERVALS BETWEEN EACH INTERROGATING PULSE AND A CORRESPONDING RESPONSE-PULSE, MEANS FOR TRANSMITTING FROM A SUBSTATION ASSOCIATED TO SAID INSTRUMENT, AFTER MODULATION WITH A SECOND CARRIER FREQUENCY, THE SEQUENTIALLY PRODUCED RESPONSE PULSES SO THAT A CYCLE OF RESPONSE PULSES COMPRISES A PLAURALITY OF INFORMATION VALUES WHICH IS EQUAL TO THE NUMBER OF INSTRUMENTS, THE ENTIRE SERIES OF INFORMATION BEING TRANSMITTED BY A PLURALITY OF SUCCESSIVE CYCLES, MEANS FOR RECEIVING THE SECOND FREQUENCY AT THE CENTRAL STATION, MEANS FOR DECODING AT THE CENTRAL STATION THE INFORMATION RECEIVED AT SAID SECOND FREQUENCY, SAID FIRST AND SECOND CARRIER FREQUENCIES BEING EQUAL, MEANS AT EACH SUBSTATION FOR DELAYING THE EMISSION OF ANY RESPONSE-PULSES UNTIL THE CORRESPONDING INTERROGATING PULSE HAS ARRIVED AT ALL OF THE SUBSTATIONS,