Tape error indication apparatus

Claim 1

IN COMBINATION, A FIRST PLURALITY OF RECORDING TRANSDUCERS AND A SECOND PLURALITY OF RECORDING TRANSDUCERS; A FIRST PLURALITY OF READING TRANSDUCERS AND A SECOND PLURALITY OF READING TRANSDUCERS; A FIRST PLURALITY OF GATING MEANS AND A SECOND PLURALITY OF GATING MEANS, THE OUTPUTS FROM SAID GATING MEANS BEING COUPLED, RESPECTIVELY, TO SAID RECORDING TRANSDUCER, EACH OF SAID GATING MEANS INCLUDING A PAIR OF "AND" GATES, ONE OF SAID GATES BEING ASSOA LOGICAL "ONE," THE OTHER OF SAID GATES BEING ASSOCIATED WITH A LOGICAL "ZERO"; A "WRITE ODD" LEAD AND A "WRITE EVEN" LEAD COUPLED TO SAID FIRST PLURALITY OF GATING MEANS AND SAID SECOND PLURALITY OF GATING MEANS, RESPECTIVELY; A "RECORDING SIGNALS" LEAD; MEANS ADAPTED TO RECEIVE TIMING PULSES; A STORAGE REGISTER ADAPTED TO STORE A FIRST PLURALITY AND A SECOND PLURALITY OF SIGNALS, SAID REGISTER BEING COUPLED TO SAID "RECORDING SIGNALS" LEAD AND SAID TIMING PULSES RECEIVING MEANS FOR SUPPLYING A FIRST PLURALITY AND A SECOND PLURALITY OF OUTPUT SIGNALS THEREFROM; MEANS COUPLING SAID REGISTER TO SAID FIRST PLURALITY AND SAID SECOND PLURALITY OF GATING MENS, SAID FIRST PLURALITY OF GATING MEANS ADAPTED TO TRANSFER SAID FIRST PLURALITY OF SIGNALS STORED IN SAID REGISTER TO SAID FIRST PLURALITY OF RECORDING TRANSDUCERS UPON THE PRESENCE OF AN ENERGIZING LEVEL ON SAID "WRITE ODD" LEAD AND ADAPTED TO TRANSFER NO SIGNALS TO SAID TRANSDUCER WHEN SAID "WRITE ODD" LEAD IS ABSENT AN ENERGIZING LEVEL, SAID SECOND PLURALITY OF GATING MEANS ADAPTED TO TRANSFER SAID SECOND PLURALITY OF SIGNALS STORED IN SAID REGISTER TO SAID SECOND PLURALITY OF RECORDING TRANSDUCERS UPON THE PRESENCE OF AN ENERGIZING LEVEL ON SAID "WRITE EVEN" LEAD AND ADAPTED TO TRANSFER NO SIGNALS TO SAID TRANSDUCERS WHEN SAID "WRITE EVEN" LEAD IS ABSENT AN ENERGIZING LEVEL; MEANS COUPLED TO SAID FIRST AND SAID SECOND PLURALITY OF READING TRANSDUCER FOR PROVIDING OUTPUT SIGNALS THEREFROM; MEANS COUPLED TO SAID FIRST PLURALITY AND SAID SECOND PLURALITY OF READING TRANSDUCERS FOR DETECTING ERRORS IN A RECORDING MEDIUM PREVIOUSLY RECORDED BY SAID FIRST AND SAID SECOND PLURALITY OF RECORDING TRANSDUCERS; AN "ERROR" FLIP-FLOP COUPLED TO SAUD ERROR DETECTING MEANS AND ADAPTED TO BE SET UPON THE DETECTION OF AN ERROR, WHEN SAID ERROR OCCURS DURING A WRITE OPERATION, SAID FLIP-FLOP BEING RESET WHEN NET DATA SIGNALS ARE COMMENCED; MEANS RESPONSIVE TO SAID FIRST PLURALITY OF READING TRANSDUCERS FOR PROVIDING AN "ODD CHANNELS READ" SIGNAL WHEN SIGNALS ARE READ BY SAID FIRST PLURALITY OF READING TRANSDUCERS AND FOR PROVIDING A "NO ODD CHANNELS READ" SIGNAL WHEN NO SIGNALS ARE READ BY SAID FIRST PLURALITY OF READING TRANSDUCERS; MEANS RESPONSIVE TO SAID SECOND PLURALITY OF READING TRANSDUCERS FOR PROVIDING AN "EVEN CHANNELS READ" SIGNAL WHEN SIGNALS ARE READ BY SAID SECOND PLURALITY OF READING TRANSDUCERS AND FOR PROVIDING A "NO EVEN CHANNELS READ" SIGNAL WHEN NO SIGNALS ARE READ BY SAID SECOND PLURALITY OF READING TRANSDUCERS; A "WRITE EVEN" FLIP-FLOP AND A "WRITE ODD" FLIP-FLOP EACH ADAPTED TO BE INITIALLY SET BY A START SIGNAL, SAID "WRITE EVEN" AND "WRITE ODD" FLIP-FLOPS, WHEN SET, PROVIDING ENERGIZING LEVELS ON SAID "WRITE EVEN" AND "WRITE ODD" LEADS, RESPECTIVELY; MEANS COUPLING SAID ERROR DETECTING MEANS TO SAID "WRITE EVEN" FLIP-FLOP FOR RESULTING SAID "WRITE EVEN" FLIP-FLOP WHEN SAID ERROR DETECTING MEANS DETECTS AN ERROR, SAID "WRITE EVEN" FLIP-FLOP ADAPTED TO BE RESET AT THE TERMINATION OF A BLOCK OF DATA BY AN "END-OF-BLOCK" SIGNAL APPLIED THERETO; A DATA GATING CIRCUIT ADAPTED TO PASS DATA SIGNALS (ONES AND ZEROS) THERETHROUGH TO SAID "RECORDING SIGNALS" LEAD, UPON THE COINIDENCE OF ENERGIZING SIGNALS FROM THE SET OUTPUTS OF SAID "WRITE ODD" AND "WRITE EVEN" FLIP-FLOPS, AND ADAPTED TO PASS A NON-DATA RECORDING SIGNAL (ZEROS ONLY) TO SAID "RECORDNG SIGNALS" LEAD WHEN EITHER SAID "WRITE EVEN" OR SAID "WRITE ODD" FLIP-FLOP IS RESET; A "PATTERN OVERLAP" FLIP-FLOP; MEANS RESPONSIVE TO THE COINCIDENCE OF ENERGIZING LEVELS ON THE SET OUTPUT OF SAID "ERROR" FLIP-FLOP, SAID "ODD CHANNELS READ" SIGNAL, AND SAID "NO-EVEN CHANNELS READ" SIGNAL, FOR SETTING SAID "PATTERN OVERLAP" FLIPFLOP; MEANS RESPONSIVE TO THE COINCIDENCE OF THE SET STATE OF SAID "PATTERN OVERLAP" FLIP-FLOP AND SAID "ODD CHANNELS READ" SIGNAL, FOR PROVIDING AN ENERGIZING LEVEL ON SAID "WRITE EVEN" LEAD; MEANS RESPONSIVE TO THE COINCIDENCE OF THE SET STATE OF SAID "PATTERN OVERLAP" FLIP-FLOP "ODD CHANNELS READ" SIGNAL, AND SAID "EVEN CHANNELS READ" SIGNAL FOR RESETTING SAID "WRITE ODD" FLIP-FLOP; AND MEANS RESPONSIVE TO THE COINCIDENCE OF SAID "NO ODD CHANNELS READ" SIGNAL AND SAID "NO EVEN CHANNELS READ" SIGNAL FOR PROVIDING AN INDICATING OUTPUT THEREFROM.