Method and apparatus for separating multi-color video signals into primary color signal components by polarity separation techniques

Claim 3

The method as decided in claim 1, wherein, the step of producing a first intermediate signal includes the step of obtaining the difference between said first signal and said delayed second signal.

Claim 4

The structure as recited in claim 2, wherein, the step of rectifying said first intermediate signal includes rectifying said first intermediate signal in a full wave rectification device.

Claim 5

The structure as cited in claim 3, wherein, the step of producing a third intermediate signal includes the step of obtaining the difference between said delayed third signal and said second intermediate signal.

Claim 6

The structure as cited in claim 4, wherein, the step of rectifying said third intermediate signal includes rectifying said third intermediate signal in a half-wave rectification device.

Claim 7

The structure as cited in claim 5, wherein, the step of rectifying said first intermediate signal includes the step rectifying said first intermediate signal in a half-wave rectifying device.

Claim 8

Apparatus for separating a multicolor video signal into primary color signal components, including: a single video image pickup tube having primary color filaments of equal widths; an optical finely dIvided, striped optical filter for forming a striped light pattern on the image pickup tube, wherein the widths of the light pattern stripes are larger than the reproducible limits of the image pickup tube filaments; means connected to the pickup tube for dividing the pickup tube output signal into first, second and third signals; first delaying means connected to said dividing means for delaying the second signal by twice the time interval corresponding to the width of a primary color filament; first combining means connected to said dividing means and said first delaying means for combining said first signal and said delayed second signal to produce a first intermediate signal; first rectifying means connected to said first combining means for rectifying said first intermediate signal to result in a second intermediate signal; second delaying means connected to said dividing means for delaying said third signal by a time interval corresponding to the width of a primary color filament; second combining means connected to said second delaying means and said first rectifying means for combining said delayed third signal with said second intermediate signal to produce a third intermediate signal; second rectifying means connected to said second combining means for rectifying said third intermediate signal to result in a first primary color signal component comprising the negative portion of said third intermediate signal; third combining means connected to said rectifying means and said first rectifying means for combining a portion of said first primary color signal component with said second intermediate signal to result in a second primary color signal component; third rectifying means connected to said second combining means for rectifying said third intermediate signal to produce a positive portion of said third intermediate signal; fourth rectifying means connected to said first combining means for rectifying said first intermediate signal to produce a positive portion of said first intermediate signal; third delaying means connected to said fourth rectifying means for delaying said positive portion of said first intermediate signal by a time interval corresponding to the width of a primary color filament to result in a fourth intermediate signal; and fourth combining means connected to said third delaying means and said third rectifying means for combining said fourth intermediate signal with said positive portion of said third intermediate signal to result in a third primary color signal component.

Claim 9

Apparatus for separating a multicolor video signal into primary color signal components, including: a single video image pickup tube having primary color filaments of equal widths; an optical finely dIvided, striped optical filter for forming a striped light pattern on the image pickup tube, wherein the widths of the light pattern stripes are larger than the reproducible limits of the image pickup tube filaments; means connected to the pickup tube for dividing the pickup tube output signal into first, second and third signals; first delaying means connected to said dividing means for delaying the second signal by twice the time interval corresponding to the width of a primary color filament; first combining means connected to said dividing means and said first delaying means for combining said first signal and said delayed second signal to produce a first intermediate signal; first rectifying means connected to said first combining means for rectifying said first intermediate signal to result in a second intermediate signal; second delaying means connected to said dividing means for delaying said third signal by a time interval corresponding to the width of a primary color filament; second combining means connected to said second delaying means and said first rectifying means for combining said delayed third signal with said second intermediate signal to produce a third intermediate signal; second rectifying means connected to said second combining means for rectifying said third intermediate signal to result in a first primary color signal component comprising the negative portion of said third intermediate signal; third combining means connected to said rectifying means and said first rectifying means for combining a portion of said first primary color signal component with said second intermediate signal to result in a second primary color signal component; third rectifying means connected to said second combining means for rectifying said third intermediate signal to produce a positive portion of said third intermediate signal; fourth rectifying means connected to said first combining means for rectifying said first intermediate signal to produce a positive portion of said first intermediate signal; third delaying means connected to said fourth rectifying means for delaying said positive portion of said first intermediate signal by a time interval corresponding to the width of a primary color filament to result in a fourth intermediate signal; and fourth combining means connected to said third delaying means and said third rectifying means for combining said fourth intermediate signal with said positive portion of said third intermediate signal to result in a third primary color signal component.

Claim 10

The structure as recited in claim 7, wherein said first combining means includes a differential signal output device obtaining the difference between said first signal and said delayed second signal.

Claim 11

The structure as recited in claim 8, wherein said first rectifying means comprises a full-wave rectifier for full-wave rectification of said first intermediate signal.

Claim 12

The structure as recited in claim 9 wherein, said second combining means comprises a differential output device obtaining the difference between said delayed third signal and second intermediate signal.

Claim 13

The structure as recited in claim 10 wherein, said second rectifying means includes a half-wave rectifier.

Claim 14

The structure as recited in claim 11, wherein, said third combining means comprises a differential output device obtaining the difference between a portion of said first primary color signal component and said second intermediate signal.

Claim 15

The structure as recited in claim 12, wherein, said third rectifying means comprises a half-wave rectifier.

Claim 16

The structure as recited in claim 13, wherein, said fourth combining means includes a differential output device obtaining the difference between said fourth intermediate signal and said positive portion of said third intermediate signal.

Claim 17

The structure as recited in claim 14, wherein, said fourth rectifying means includes a half-wave rectifier.