Apparatus for magnetically recording and reproducing at a remote station over a telephone line

Claim 1

MAGNETIC RECORDING AND REPRODUCTION APPARATUS COMPRISING IN COMBINATION: (A) A DIGITAL GENERATING STATION INCLUDING MEANS FOR GENERATING A PLURALITY OF CONTROL SIGNALS AND INFORMATION SIGNALS, (B) A SWITCHING SYSTEM INCLUDING MEANS FOR COMMUNICATIVELY CONNECTING SAID SIGNAL GENERATING STATION WITH A RECEIVING STATION WHICH INCLUDES A MAGNETIC RECORDER AND REPRODUCING UNIT HAVING AN INPUT WHICH IS OPERATIVELY CONNECTABLE TO THE INPUT OF SAID RECEIVING STATION, (C) MEANS AT SAID GENERATING STATION FOR OPERATIVELY CONNECTING AN OUTPUT CIRCUIT THEREOF TO THE INPUT OF SAID RECEIVING STATION, (D) SAID MAGNETIC RECORDER COMPRISING A MAGNETIC RECORDING UNIT HAVING A PLURALITY OF RECORDING CHANNELS AND HAVING FURTHER MEANS SELECTIVELY OPERABLE IN RESPONSE TO A SIGNAL TRANSMITTED TO SAID RECEIVING STATION FROM SAID SENDING STATION FOR SELECTIVELY RECORDING A SIGNAL ONTO A PREDETERMINED OF SAID CHANNELS AND MEANS FOR SELECTIVELY REPRODUCING SIGNALS FROM A SELECTED OF SAID CHANNELS, (E) SAID SELECTIVE RECORDING MEANS INCLUDING A CONTROLLER HAVING SWITCHING MEANS FOR EFFECTING SELECTIVE RECORDING, (F) SAID SWITCHING MEANS BEING CONTROLLABLE BY RELAY MEANS WHICH IS RESPONSIVE TO SIGNALS OF PREDETERMINED FREQUENCY OR TONE, (G) SAID RELAY MEANS BEING OPERATIVELY CONNECTED TO THE INPUT TO SAID RECEIVING STATION AND BEING RESPONSIVE TO OPERATE SAID SWITCHING MEANS UPON RECEIPT OF A PREDETERMINED SIGNAL FROM SAID SENDING STATION, (H) MEANS AT SAID SENDING STATION FOR GENERATING ON THE COMPLETED CIRCUIT A PREDETERMINED TONE SIGNAL TO WHICH SAID RELAY MEANS IS RESPONSIVE WHEREBY TO EFFECT THE OPERATION OF SAID RELAY MEANS AT SAID RECEIVING STATION FOR RECORDING SIGNALS ONTO A PREDETERMINED CHANNEL OF SAID MAGNETIC RECORDER PRIOR TO THE GENERATION AT SAID SENDING STATION OF AN INFORMATION SIGNAL, (I) AND MEANS CONTROLLED BY SAID SENDING STATION FOR DISCONNECTING THE CIRCUIT TO SAID RECEIVING STATION AFTER THE TRANSMISSION OF AN INFORMATION SIGNAL THERETO AND ITS RECORDING ONTO A PREDETERMINED RECORDING CHANNEL OF SAID MAGNETIC RECORDER.