Charge transfer device for forming desired color difference signals

DETAILED DESCRIPTION I claim as my invention: 1.
A charge transfer device for processing color signals, comprising: signal separating means for forming a first color signal during predetermined periods and for forming a sequential signal formed of alternating second and third color signals such that only one of said second and third color signals is present during alternate ones of said predetermined periods; first charge transfer means for forming first color signal charges connected to receive said first color signal from said signal separating means; second charge transfer means for forming sequential signal charges connected to receive said sequential signal from said signal separating means; first combining means for combining the first color signal charges with the sequential signal charges during said predetermined periods so as to create sequential resultant signal charges formed of first and second resultant signal charges such that only one of said first and second resultant signal charges is present during alternate ones of said predetermined periods; and switching means having a first input and two outputs, wherein said switching means receives the sequential resultant signal charges formed of the first and second resultant signal charges at the first input and outputs the first resultant signal charges at one output and the second resultant signal charges at the other output during said predetermined periods.
2.
A charge transfer device according to claim 1 wherein the switching means includes a second input, the first color signal is supplied to a third charge transfer means and the sequential signal is supplied to a fourth charge transfer means, and wherein a second combining means is connected to the third and fourth charge transfer means and to the second input of the switching means.
3.
A charge transfer device according to claim 1 wherein said first, second, and third color signals are green, red, and blue dot-sequential color signals, respectively.
4.
A charge transfer device according to claim 1 wherein the first and second resultant signal charges form color difference signals