Electronic previewer for televised color pictures

Claim 1

AN ELECTRONIC PREVIEWER FOR SIMULATING THE COLORPROCESSING CHARACTERISTICS OF A SYSTEM WHEREIN A DERIVED COLOR PICTURE IS PHOTOCHEMICALLY PREPARED FROM AN ORIGINAL COLOR PICTURE AND THE DERIVED PICTURE IS UTILIZED IN A COLOR-TELEVISION SYSTEM TO OBTAIN A RECEIVED COLOR-TELEVISION IMAGE THEREOF, SAID PHOTOCHEMICAL PROCESS INVOLVING PRODUCTION OF A PLURALITY OF COLOR DYES IN THE DERIVED PICTURE HAVING DENSITIES DETERMINED BY THE RELATIVE PROPORTIONS OF CORRESPONDING COLOR COMPONENTS OF A PRINTING LIGHT TRANSMITTED THROUGH SAID ORIGAINAL COLOR PICTURE, AND SAID COLOR-TELEVISION SYSTEM INCLUDING A TRANSMITTER WHICH SCANS THE DERIVED PICTURE TO PRODUCE ORIGINAL SIGNALS REPRESENTATIVE OF PREDETERMINED COLOR COMPONENTS THEREOF AND PROCESSES THOSE SIGNALS TO COVERT THEM TO RESULTANT SIGNALS FOR ACTUATING A COLOR-TELEVISION RECEIVER, TO DISPLAY AN IMAGE OF SAID DERIVED PICTURE SAID PREVIEWER COMPRISING: THE COMBINATION OF MEANS FOR SCANNING SAID ORIGINAL PICTURE AND MEANS ADAPTED TO SIMULATE SAID PHOTOCHEMICAL PROCESS AND THE SPECTRAL TAKING CHARACTERISTICS OF SAID TELEVISION TRANSMITTER SO AS TO OBTAIN COLORREPRESENTATIVE SIGNALS RESPECTIVELY PROPORTIONAL CORRESPONDING TO THE ORIGINAL SIGNALS PRODUCED BY SAID TRANSMITTER FROM SAID DERIVED COLOR PICTURE, SAID SIMULATING MEANS BEING ADAPTED TO ADAPTED TO ADJUST THE RELATIVE PROPORTIONS OF SAID COLOR-REPRESENTATIVE SIGNALS; MEANS FOR NONLINEARLY TRANSLATING THOSE SIGNAL-PROCESSING CIRCUIT MEANS FOR MODIFYING EACH OF SAID NONLINEARLY TRANSLATED COLOR-REPRESENTATIVE SIGNALS IN ACCORDANCE WITH AT LEAST PART OF THE SIGNAL PROCESSING BY WHICH SAID COLOR-TELEVISION TRANSMITTER CONVERTS THE CORRESPONDING ONES OF SAID ORIGINAL SIGNALS TO SAID RESULTANT SIGNALS; AND COLOR-IMAGEREPRODUCING MEANS RESPONSIVE TO SAID MODFIED SIGNALS TO PRODUCE A COLOR IMAGE CORRESPONDING THERETO, WHEREBY THE COLOR IMAGE PRODUCED BY SAID PREVIEWER WILL HAVE SUBSTANTIALLY THE SAME APPEARANCE AS THAT WHICH WILL BE PRODUCED BY SAID COLOR-TELEVISION RECEIVER WHEN THE RELATIVE PROPORTIONS OF THE COLOR COMPONENTS OF THE PRINTING LIGHT EMPLOYED IN SAID PHOTOCHEMICAL PROCESS ARE ADJUSTED IN ACCORDANCE WITH THE ADJUSTMENT OF SAID SIMULATING MEANS.