Information storage and retrieval system having a dynamic memory device

Claim 1

AN INFORMATION STORAGE AND RETRIEVAL SYSTEM FOR STORING BINARY INFORMATION IN SERIES IN A CIRCULATING LOOP COMPRISING A DYNAMIC MEMORY CIRCUIT FOR REPEATING EACH BIT OF BINARY INPUT INFORMATION AT ITS OUTPUT, SAID STORAGE LOOP FURTHER COMPRISING FIRST AND SECOND SHIFT REGISTERS TANDEM CONNECTED AND IN SERIES WITH SAID MEMORY CIRCUIT, SAID SHIFT REGISTERS EACH HAVING A PLURALITY OF STAGES FOR STORING A FIXED NUMBER OF BINARY DIGITS WHICH FORM ONE INFORMATION CHARACTER FOR EACH REGISTER, A SOURCE OF CONTINUALLY APPEARING SHIFT CONTROL PULSES APPLIED TO SAID FIRST AND SECOND REGISTERS FOR SEQUENTIALLY AND REPETITIVELY ADVANCING EACH BIT STORED IN SERIES IN SAID REGISTRS INTO SAID DYNAMIC MEMORY, MEANS FOR INSERTING A START CHARACTER UNIQUELY CODED FROM ALL OTHER INFORMATION INTO ONE OF SAID REGISTERS TO INDICATE THE BEGINNING POINT OF AN INFORMATION PATTERN IN SAID LOOP AND ALSO FOR INSERTING A TERRMINATE CHARACTER UNIQUELY CODED FROM SAID START CHARACTER AND ALL OTHER INFORMATION INTO SAID LOOP FOR INDICATING THE END OF SAID INFORMATION PATTERN, FIRST AND SECOND SIGNAL DETECTING DEVICES, FIRST AND SECOND CHARACTER DECODING MEANS CONNECTED RESPECTIVELY BETWEEN SAID FIRST AND SECOND REGISTERS AND SAID FIRST AND SECOND DETECTING DEVICES, SAID FIRST AND SECOND CHARACTER DECODING MEANS BEING RESPONSIVE TO THE PRESENCE OF SAID START CHARACTER IN SAID FIRST AND SECOND REGISTERS RESPECTIVELY FOR DELIVERING OUTPUT SIGNALS TO SAID FIRST AND SECOND SIGNAL DETECTING DEVICES, A CONTROL CIRCUIT FOR DELIVERING COMMAND SIGNALS TO SAID FIRST AND SECOND SIGNAL DETECTING DEVICES, MEANS ACTIVATINGLY OPERATIVE FOR RECOVERING AN INFORMATION CHARACTER STORED IN SAID FIRST SHIFT REGISTER, AND MEANS CONNECTED BETWEEN SAID FIRST AND SECOND DETECTING DEVICES AND SAID SIGNAL RECOVERY MEANS FOR ACTIVATING SAID RECOVERY MEANS UPON COINCIDENCE OF A COMMAND AND A CHARACTER DECODING OUTPUT SIGNAL AT SAID SECOND DETECTING MEANS.