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Abstract

Abstract 1. A MULTITRACK-RECORD SYSTEM FOR PROCESSING DIGITAL DATA SIGNALS WITH RECORDING CIRCUITS AND READ-BACK CIRCUITS HAVING HEAD-TRACKING CAPABILITIES AND FOR BEING IN OPERATIVE ASSOCIATION WITH A RECORD MEDIA RELATIVELY MOVABLE WITH RESPECT TO MAGNETIC TRANSDUCERS IN EITHER DIRECTION ALONG A GIVEN PATH, A BYTE BEING A GROUP OF SIGNALS HAVING ONE SIGNAL RESPECTIVELY ASSOCIATED WITH A TRACK, THE IMPROVEMENT INCLUDING IN COMBINATION: DATA MEANS FOR SELECTIVELY ESTABLISHING DIGITAL DATA SIGNAL-PROCESSING OPERATIONS IN SAID CIRCUITS, SAID OPERATIONS PROCESSING DIGITALS SIGNALS TO AND FROM SAID RECORD MEDIA, SAID SIGNALS EXHIBITING PREDETERMINED FREQUENCY CHARACTERISTICS, RESYNC MEANS OPERATIVELY COUPLED TO SAID CIRCUITS FOR SELECTIVELY ESTABLISHING RESYNC RSIGNAL PROCESSING OPERATIONS IN SAID CIRCUITS FOR PROCESSING RESYNC SIGNALS HAVING FREQUENCY CHARACTERISTICS WITHIN SAID PREDETERMINED FREQUENCY CHARACTERISTICS, CONTROL MEANS INCLUDING CYCLING MEANS AND CAPABLE OF INTERRUPTING SAID DATA MEANS OPERABLE FOR INTERLEAVING AN OPERATION BY SAID RESYNC MEANS, SAID RESYNC MEANS BEING RESPONSIVE TO SAID INTERRUPTION TO EFFECT PROCESSING OF SAID RESYNC SIGNALS, SAID RESYNC SIGNALS EXHIBITING AT LEAST ONE UNIQUE SIGNAL CHARACTERISTIC NOT FOUND IN SAID DIGITAL SIGNALS FOR INDICATING POSITION OF SAID RESYNC SIGNALS ON SAID MEDIA, AND SAID DATA MEANS INCLUDING MEANS FOR DETECTING AND INDICATING POSITIONAL RELATIONSHIP BETWEEN SAID TRACKS BY SAID RESYNC SIGNALS AND INCLUDING FURTHER MEANS FOR ESTABLISHING SAID PREDETERMINED FREQUENCY RELATION BETWEEN SAID RESYNC SIGNALS AND SAID DATA MEANS.

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