Skew correction in a recording and reproducing system

Claim 1

A RECORDING AND REPRODUCING SYSTEM FOR USE WITH A RECORDING MEDIUM MOVABLE IN A FIRST DIRECTION, INCLUDING, MEANS OPERATIVELY COUPLED TO THE RECORDING MEDIUM FOR OBTAINING A MOVEMENT OF THE MEDIUM IN THE FIRST DIRECTION, MEANS DISPOSED RELATIVE TO THE MEDIUM FOR RECORDING INFORMATION AS LINE SCAN SIGNALS IN SUCCESSIVE TRANSVERSE TRACKS ACROSS THE RECORDING MEDIUM IN A SECOND DIRECTION TRANSVERSE TO THE FIRST DIRECTION, MEANS OPERATIVELY COUPLED TO THE RECORDING MEANS FOR OBTAINING A RECORDING OF CODING SIGNALS AT EACH END OF EACH TRANSVERSE TRACK ON THE RECORDING MEDIUM WITH THE CODING SIGNAL AT THE BEGINNING AND END OF EACH ONE OF EVERY THREE SUCCESSIVE TRACKS BEING DIFFERENT FROM THE CODING SIGNALS AT THE BEGINNING AND END OF THE OTHER TWO TRACKS, MEANS DISPOSED RELATIVE TO THE MEDIUM FOR REPRODUCING THE CODING SIGNALS AND THE LINE-SCAN SIGNALS RECORDED ON THE MOVING MEDIUM, MEANS COUPLED TO SAID REPRODUCING MEANS FOR SEPARATING THE REPRODUCED CODING SIGNALS FROM THE REPRODUCED LINE-SCAN SIGNALS, MEANS RESPONSIVE TO THE CODING SIGNALS FROM THE SEPARATING MEANS AT THE BEGINNING OF A PARTICULAR ONE OF EVERY THREE SUCCESIVE TRACKS FOR VARYING THE SPEED OF THE RECORDING MEDIUM PAST THE REPRODUCING MEANS, AND MEANS RESPONSIVE TO THE CODING SIGNALS AT THE END OF THE PARTICULAR ONE OF EVERY THREE SUCCESSIVE TRACKS FOR VARYING THE SKEW OF THE TRACKS RELATIVE TO THE REPRODUCING MEANS.