Transducing system

Claim 1

IN COMBINATION IN A SYSTEM FOR RECORDING VISUAL INFORMATION ON A MEDIUM IN A SPIRAL TRACK ON THE MADIUM TO PRODUCE VARIABLE CHARACTERISTICS REPRESENTING THE INFORMATION IN THE SPIRAL TRACK ON THE MEDIUM WHEREIN THE VARIABLE CHARACTERISTICS ON THE MEDIUM ARE PRODUCED BY THE DIRECTION OF ENERGY TOWARD THE MEDIUM AND WHEREIN THE MEDIUM IS PROVIDED WITH CHARACTERISTICS TO RECORD THE VARIABLE CHARACTERISTICS ON THE MEDIUM TO RECORD THE VARIATIONS IN THE CHARACTERISTICS OF THE ENERGY DIRECTED TOWARD THE MEDIUM. FIRST MEANS OPERATIVELY COUPLED TO THE MEDIUM FOR PROVIDING A ROTATIONAL MOVEMENT OF THE MEDIUM, SECOND MEANS DISPOSED RELATIVE TO THE MEDIUM FOR DIRECTING A BEAM OF ENERGY TOWARD THE MEDIUM TO PRODUCE VARIATIONS IN THE CHARACTERISTICS OF THE MEDIUM IN ACCORDANCE WITH VARIATIONS IN THE CHARACTERISTICS OF THE BEAM, THIRD MEANS OPERATIVELY COUPLED TO THE SECOND MEANS FOR OBTAINING VARIATIONS IN THE CHARACTERISTICS OF THE BEAM IN REPRESENTATION OF INFORMATION TO BE RECORDED IN THE SPIRAL TRACK OF THE MEDIUM, FOUR MEANS FOR PROVIDING A MOVEMENT OF THE MEDIUM RELATIVE TO THE SECOND MEANS ALONG A LINE HAVING A RADIAL COMPONENT EXTENDING FROM THE CENTER OF ROTATION OF THE MEDIUM TO PRODUCE A SPIRAL TRACK OF INFORMATON OF THE MEDIUM AND FIFTH MEANS RESPONSIVE TO VARIATIONS IN THE MOVEMENT OF THE MEDIUM RELATIVE TO THE SECOND MEANS ALONG THE LINE HAVING THE RADIAL COMPONENT FOR COMPENSATING FOR SUCH VARIATIONS IN THE MOVEMENT OF THE MEDIUM RELATIVE TO THE SECOND MEANS.