Converter for changing a black and white television signal to a color television signal

Claim 1

A CONVERTER FOR ACCEPTING A BLACK AND WHITE TELEVISION SIGNAL AND FOR PROVIDING THREE UNIQUE TELEVISION SIGNALS SUITABLE FOR USE IN A MULTI-GUN COLOR TELEVISION REPRODUCER TO PROVIDE A COLOR RENDITION OF THE BLACK AND WHITE TELEVISION SIGNAL COMPRISING FIRST CIRCUIT MEANS RESPOSIVE TO THE BLACK AND WHITE VIDEO SIGNAL FOR PROVIDING A FIRST OUTPUT WHICH VARIES LINEARLY FROM A FIRST VALUE TO A SECOND GRAY SCALE LEVEL, BLACK AND WHITE VIDEO SIGNAL VERIES LINEARLY FROM A FIRST GRAY SCALE LEVEL TO A SECOND GRAY SCALE LEVEL, SECOND CIRCUIT MEANS RESPONSIVE TO THE BLACK AND WHITE VIDEO SIGNAL FOR PROVIDING AN OUTPUT WHICH VARIES LINEARLY FROM SAID SECOND VALUE TO SAID FIRST VALUE AS THE BLACK AND WHITE VIDOE SIGNAL VARIES LINEARLY FROM SAID SECOND GRAY SCALE LEVEL TO A THIRD GRAY SCALE LEVEL, THIRD CIRCUIT MEANS RESPONSIVE TO THE BLACK AND WHITE VIDEO SIGNAL FOR PROVIDING AN OUTPUT WHICH VARIES LINEARLY FROM SAID SECOND VALUE TO SAID FIRST VALUE AS SAID BLACK AND WHITE VIDEO SIGNAL VARIES LINEARLY FROM SAID FIRST GRAY SCALE LEVEL TO SAID SECOND GARY SCALE LEVEL AND VARIES LINEARLY FROM SAID FIRST VALUE TO SAID SECOND VALUE AS SAID BLACK AND WHITE VIDEO SIGNAL VARIES LINEARLY FROM SAID SECOND GRAY SCALE LEVEL TO SAID THIRD GRAY SCALE LEVEL, AND MEANS FOR CONNECTING THE FIRST, SECOND AND THIRD CIRCUIT MEANS OUTPUTS EACH TO A PREDETERMINED DIFFERENT COLOR GUN OF A MULTI-GUN TELEVISION REPRODUCER WHEREBY A COLOR RENDITION OF THE BLACK AND WHITE TELEVISION SIGNAL MAY BE REPRODUCED ON THE SCREEN OF SAID REPRODUCER.