Coordination arrangement for telephone and remote control communication over a common channel

Claim 1

A COORDINATION ARRANGEMENT FOR A REMOTE CONTROL SYSTEM AND A TELEPHONE NETWORK USING THE SAME COMMUNICATION CHANNEL AND TRANSMITTING SIGNALS HAVING SIMILAR CHARACTERISTICS, SAID REMOTE CONTROL SYSTEM BEING NORMALLY ACTIVE TO TRANSMIT CONTROL AND INDICATION FUNCTIONS BETWEEN A CONTROL OFFICE AND A PLURALITY OF REMOTE STATIONS, EACH LOCATION CONNECTED TO SAID CHANNEL AND FURTHER PROVIDED WITH LOCAL TELEPHONE APPARATUS, COMPRISING IN COMBINATION, (A) A MANUALLY ACTUATED MEANS AT SAID OFFICE HAVING CONNECTIONS TO SAID REMOTE CONTROL SYSTEM FOR INITIATING THE TRANSMISSION OF A TELEPHONE REQUEST CONTROL FUNCTION WHEN OPERATED TO A FIRST CONDITION, (B) A FIRST MEANS AT EACH STATION CONTROLLED BY SAID REMOTE CONTROL SYSTEM FOR LOCKING OUT THAT STATION INDICATION TRANSMITTER WHEN SAID REQUEST CONTROL FUNCTION IS RECEIVED, (C) A TRANSFER MEANS AT SAID OFFICE JOINTLY CONTROLLEC MANUALLY AND BY SAID REMOTE CONTROL SYSTEM FOR LOCKING OUT THE OFFICE CONTROL TRANSMITTER AND FOR CONNECTING THE TELEPHONE NETWORK TO SAID CHANNEL AT THE OFFICE WHEN SAID REQUEST CONTROL FUNCTION HAS BEEN TRANSMITTED, (D) A SECOND MEANS AT EACH STATION CONTROLLED THROUGH SAID CHANNEL BY SAID TRANSFER MEANS FOR COMPLETING THE STATION TELEPHONE CONNECTIONS TO SAID CHANNEL AFTER SAID OFFICE TRANSMITTER IS LOCKED OUT, (E) SAID MANUALLY ACTUATED MEANS FURTHER CONTROLLING SAID REMOTE CONTROL SYSTEM FOR TRANSMITTING ANOTHER CONTROL FUNCTION TO UNLOCK THE INDICATION TRANSMITTERS AT SAID STATIONS AND TO INTERRUPT THE STATION TELEPHONE CONNECTIONS TO SAID CHANNEL WHEN SAID MANUALLY ACTUATED MEANS IS OPERATED TO A SECOND CONDITION AND SAID TRANSFER MEANS HAS OPERATED TO UNLOCK SAID OFFICE CONTROL TRANSMITTER.