Video sequential color system

Claim 2

A video sequential color processing system comprising: an image sensing device for sequentially receiving visual information and providing electrical read-out signals corresponding to the full resolution luminance and chroma information of each scan; means for sequentially coloring the visual information received by said image sensing device, with a specific color during each scan of said image sensing device, so that the read-out signals are in sequential color flow relationship; said sequential coloring means arranged in sets of complementary colors, so that a specific color is followed two scans later by the complement of the specific color; means for separating low resolution luminance and chroma signals from the full resolution read-out signals; a first memory unit for storing the low resolution signals from said separating means, and having an output corresponding in time to a field scan which is one field scan later than the output of said separating means; a second memory unit for storing the low resolution signals received from said first memory unit, and having an output corresponding in time to a field scan which is one field scan later than the output of said first memory unit, and two field scans later than the output of said separating means; a summing amplifier for receiving signals from said separating means, and from said second memory unit, resulting in an output of low resolution luminance; a first pair of differential amplifiers, each receiving signals from said first memory unit, and signals from said summing amplifier, at opposite terminals, resulting in outputs of sequential chroma signals from each of said first pair of amplifiers; a second pair of differential amplifiers, each receiving signals from said second memory unit, and signals from said separating means, at opposite terminals, resulting in outputs of sequential chroma signals from each of said second pair of amplifiers; a timer means for synchronizing said sequential coloring means and said image sensing device; a switching means which is controlled by said timer means and which selects the positive chroma signals from each of said first pair and each of said second pair of amplifiers into outputs of continuous low resolution primary chroma signals; means for processing the full resolution read-out signals by canceling the chroma information signals, resulting in an output of full resolution luminance signal; and a television encoder which receives the full resolution luminance signal and the low resolution chroma signals, and encodes the signals into standard broadcast color format.

Claim 3

The video system as in claim 1, wherein said sequential coloring means is arranged in sets of complementary colors comprising blue-yellow and red-cyan.

Claim 4

The video system as in claim 1, wherein said image sensing device is a solid state scanning device known as a charge coupled device.

Claim 5

A video sequential color processing system comprising: an image sensing device for sequentially receiving visual information and providing electrical read-out signals corresponding to the full resolution luminance and chroma information of each scan; means for sequentially coloring the visual information received by said image sensing device, with a specific color during each scan of said image sensing device, so that the read-out signals are in sequential color flow relationship; said sequential coloring means arranged in sets of complementary colors, so that a specific color is followed two scans later by the complement of the specific color; means for separating low resolution luminance and chroma signals from the full resolution read-out signals; an analog to digital converter means which receives the low resolution analog signals from said separating means and converts the signals to binary digital format; a first memory unit for storing the low resolution signals from said separating means, and having an output corresponding in time to a field scan which is one field scan later than the output of said separating means; a second memory unit for storing the low resolution signals received from said first memory unit, and having an output corresponding in time to a field scan which is one field scan later that the output of said first memory unit, and two field scans later than the output of said separating means; a digital adder unit which receives signals from said A/D converter means, and from said second memory unit resulting in an output of low resolution luminance; a first pair of digital subtractor units, each receiving signals from said first memory unit, and signals from said adder unit, at opposite terminals, resulting in outputs of sequential chroma signals from each of said first pair of subtractor units; a second pair of digital subtractor units, each receiving signals from said second memory unit, and signals from said A/D converter means, at opposite terminals, resulting in outputs of sequential chroma signals from each of said second pair of subtractor units; a timer means for synchronizing said sequential coloring means and said image sensing device; a switching means which is controlled by said timer means and which selects the positive chroma signal from each of said first and each of said second pair of subtractor units, and which sorts the signals into outputs of continuous low resolution primary signals; digital to analog converter means which receives the continuous low resolution primary output signals and converts the signals back to analog format; means for processing the full resolution read-out signals by canceling the chroma information signal, resulting in an output of full resolution luminance signal; and a television encoder which receives the full resolution luminance signal and the low resolution chroma signals, and encodes the signals into standard broadcast format.

Claim 6

A video sequential color processing system comprising: an image sensing device for sequentially receiving visual information and providing electrical read-out signals corresponding to the full resolution luminance and chroma information of each scan; means for sequentially coloring the visual information received by said image sensing device, with a specific color during each scan of said image sensing device, so that the read-out signals are in sequential color flow relationship; said sequential coloring means arranged in sets of complementary colors, so that a specific color is followed two scans later by the complement of the specific color; means for separating low resolution luminance and chroma signals from the full resolution read-out signals; an analog to digital converter means which receives the low resolution analog signals from said separating means and converts the signals to binary digital format; a first memory unit for storing the low resolution signals from said separating means, and having an output corresponding in time to a field scan which is one field scan later than the output of said separating means; a second memory unit for storing the low resolution signals received from said first memory unit, and having an output corresponding in time to a field scan which is one field scan later that the output of said first memory unit, and two field scans later than the output of said separating means; a digital adder unit which receives signals from said A/D converter means, and from said second memory unit resulting in an output of low resolution luminance; a first pair of digital subtractor units, each receiving signals from said first memory unit, and signals from said adder unit, at opposite terminals, resulting in outputs of sequential chroma signals from each of said first pair of subtractor units; a second pair of digital subtractor units, each receiving signals from said second memory unit, and signals from said A/D converter means, at opposite terminals, resulting in outputs of sequential chroma signals from each of said second pair of subtractor units; a timer means for synchronizing said sequential coloring means and said image sensing device; a switching means which is controlled by said timer means and which selects the positive chroma signal from each of said first and each of said second pair of subtractor units, and which sorts the signals into outputs of continuous low resolution primary signals; digital to analog converter means which receives the continuous low resolution primary output signals and converts the signals back to analog format; means for processing the full resolution read-out signals by canceling the chroma information signal, resulting in an output of full resolution luminance signal; and a television encoder which receives the full resolution luminance signal and the low resolution chroma signals, and encodes the signals into standard broadcast format.

Claim 7

The system as in claim 4, which further comprises: a first buffer unit between said A/D converter means and said first memory unit, to facilitate the receiving of signals from said A/D converter means while transferring signals from said first memory unit; a second buffer unit between said first memory unit and said second memory unit, to facilitate the receiving of signals from said first memory unit while transferring signals from said second memory unit.

Claim 8

The system as in claim 4, wherein said sequential coloring means comprises the two sets of complementary colors of blue-yellow and red-cyan.

Claim 9

The system as in claim 4, wherein said image sensing device is a solid state scanning device known as a charge coupled device.

Claim 10

A video sequential color processing system comprising: an image sensing device for sequentially receiving visual information and providing electrical read-out signals corresponding to the full resolution luminance and chroma information of each scan; means for sequentially coloring the visual information received by said image sensing device with a primary color during each scan of said image sensing device, so that the read-out signals are in sequential color flow relationship; a timer means for synchronizing said sequential coloring means and said image sensing device; means for separating low resolution luminance and chroma signals from the full resolution read-out signals; a first memory unit for storing the low resolution signals from said separating means, and having an output corresponding in time to a field scan which is one field scan later than the output of said separating means; a second memory unit for storing the low resolution signals received from said first memory unit, and having an output corresponding in time to a field scan which is one field scan later that the output of said first memory unit, and two field scans later than the output of said separating means; signal processing means which simultaneously receives the low resolution signals from said separating means, from said first memory unit and from said second memory unit, wherein the three signals are processed in combination where each one of the signals is added to one of the other signals, and the sum is subtracted from the non-added signal to yield sequential low resolution primary chroma signals, which are further sorted, resulting in outputs of continuous low resolution primary chroma signals; means for processing the full resolution read-out signals by canceling the chroma information signals, resulting in an output of full resolution luminance signal; and a television encoder which receives the full resolution luminance signal, and the low resolution chroma signals from said signal processing means, and encodes the signals into standard broadcast color format.

Claim 11

A video sequential color processing system comprising: an image sensing device for sequentially receiving visual information and providing electrical read-out signals corresponding to the full resolution luminance and chroma information of each scan; means for sequentially coloring the visual information received by said image sensing device with a primary color during each scan of said image sensing device, so that the read-out signals are in sequential color flow relationship; a timer means for synchronizing said sequential coloring means and said image sensing device; means for separating low resolution luminance and chroma signals from the full resolution read-out signals; a first memory unit for storing the low resolution signals from said separating means, and having an output corresponding in time to a field scan which is one field scan later than the output of said separating means; a second memory unit for storing the low resolution signals received from said first memory unit, and having an output corresponding in time to a field scan which is one field scan later that the output of said first memory unit, and two field scans later than the output of said separating means; signal processing means which simultaneously receives the low resolution signals from said separating means, from said first memory unit and from said second memory unit, wherein the three signals are processed in combination where each one of the signals is added to one of the other signals, and the sum is subtracted from the non-added signal to yield sequential low resolution primary chroma signals, which are further sorted, resulting in outputs of continuous low resolution primary chroma signals; means for processing the full resolution read-out signals by canceling the chroma information signals, resulting in an output of full resolution luminance signal; and a television encoder which receives the full resolution luminance signal, and the low resolution chroma signals from said signal processing means, and encodes the signals into standard broadcast color format.

Claim 12

The system as in claim 8, wherein said signal processing means comprises: a first summing amplifier which receives signals from said separating means and from said first memory unit; a second summing amplifier which receives signals from said first memory unit and from said second memory unit; a third summing amplifier which receives signals from said second memory unit and from said separating means; a first differential amplifier which receives the signals from said separating means at the non-inverting terminal, and the signal from said second summing amplifier at the inverting terminal; a second differential amplifier which receives the signals from said first memory unit at the non-inverting terminal, and the signals from said third summing amplifier at the inverting terminal; a third differential amplifier which receives the signals from said second memory unit at the non-inverting terminal, and the signals from said first summing amplifier at the inverting terminal; and a switching means which is controlled by said timer means and which selects the positive chroma signal from each of said first, second and third differential amplifiers, and having outputs of continuous, low resolution primary chroma signals.

Claim 13

The system as in claim 8, wherein said image sensing device is a solid state scanning device known as a charge coupled device.

Claim 14

The system as in claim 8, which further comprises: an analog to digital converter means which receives the low resolution analog signals from said separating means and converts the signals to binary digital format; a first digital adder unit which receives signals from said A/D converter means, and from said first memory unit; a second digital adder unit which receives signals from said first memory unit, and from said second memory unit; a third digital adder unit which receives signals from said second memory unit, and from said A/D converter means; a first digital subtractor unit which receives the signals from said A/D converter means at the non-inverting terminal, and the signals from said second adder unit at the inverting terminal; a second digital subtractor unit which receives the signals from said first memory unit at the non-inverting terminal, and the signals from said third adder unit at the inverting terminal; a third digital subtractor unit which receives the signals from said second memory unit at the non-inverting terminal, and the signals from said first adder unit at the inverting terminal; switching means which is controlled by said timer means and which selects the primary signals from each of said first, second, and third subtractor units, and having an output of continuous, low resolution, primary chroma signals; and digital to analog converter means which receives the continuous low resolution primary chroma output signals and converts the signals back to analog format.

Claim 15

The system as in claim 11, which further comprises: a first buffer unit between said A/D converter means and said first memory unit, to facilitate the receiving of signals from said A/D converter means while transferring signals from said first memory unit; a second buffer unit between said first memory unit and second memory unit, to facilitate the receiving of signals from said first memory unit while transferring signals from said second memory unit.