Video system performing non-uniform interpolation of color space signals and method of using same

Claim 2

A video system, comprising: a converter for converting a video signal to a plurality of adjacent color space signals; a memory for storing the plurality of adjacent color space signals of an input frame, the memory providing the adjacent color space signals as output; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2, wherein y represents one of the interpolated pixel signals, d 1 and d 2 represent a pair of the adjacent color space signals and c 1 and c 2 represent a first and second coefficient; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein the adjacent color space signals are transferable from the converter to the memory as a function of the first signal and the adjacent color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the video system is programmable to vary the number of scan lines in the output frame.

Claim 3

The video system of claim 1, wherein 0≦c 1 ≦1 and 0≦c 2 ≦1.

Claim 4

The video system of claim 1, wherein the non-uniform interpolation is based on a function: y=C.sub.1 *d.sub.1 +c.sub.2 *d.sub.2 +c.sub.3 *d.sub.3 wherein d 3 represents a third one of the adjacent color space signals and c 3 represents a third coefficient.

Claim 5

The video system of claim 1, wherein the video signal includes a sequence of interlaced fields and the input frame includes two fields from the sequence of interlaced fields.

Claim 6

The video system of claim 1, further comprising: a phase locked loop responsive to the sync generator.

Claim 7

The video system of claim 1, further comprising: a monitor for displaying an image derived from the plurality of interpolated pixel signals.

Claim 8

The video system of claim 1, wherein the video system is included in a color television receiver.

Claim 9

A video system, comprising: an A/D converter for converting a video signal to a plurality of digital signals; a signal converter, responsive to the plurality of digital signals, for generating a plurality of chrominance signals and a plurality of luminance signals; a decoder for generating a plurality of adjacent color space signals from the pluralities of chrominance and luminance signals; a memory for storing the plurality of adjacent color space signals of an input frame, the memory providing the adjacent color space signals as output; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y.sub.i =c.sub.1ik *d.sub.k +c.sub.2ik *d.sub.k+1 wherein y i represents one of the interpolated pixel signals, d k and d k+1 represent a pair of the adjacent color space signals, c 1ik represents a first coefficient, c 2ik represents a second coefficient, and i and k are integer indices; a color space converter for converting the interpolated pixel signals to a plurality of output signals; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein operations of the A/D converter, the signal converter, the decoder, and the memory are a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the video system is programmable to vary the number of scan lines in the output field.

Claim 10

A video system, comprising: an A/D converter for converting a video signal to a plurality of digital signals; a signal converter, responsive to the plurality of digital signals, for generating a plurality of chrominance signals and a plurality of luminance signals; a decoder for generating a plurality of adjacent color space signals from the pluralities of chrominance and luminance signals; a memory for storing the plurality of adjacent color space signals of an input frame, the memory providing the adjacent color space signals as output; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y.sub.i =c.sub.1ik *d.sub.k +c.sub.2ik *d.sub.k+1 wherein y i represents one of the interpolated pixel signals, d k and d k+1 represent a pair of the adjacent color space signals, c 1ik represents a first coefficient, c 2ik represents a second coefficient, and i and k are integer indices; a color space converter for converting the interpolated pixel signals to a plurality of output signals; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein operations of the A/D converter, the signal converter, the decoder, and the memory are a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the video system is programmable to vary the number of scan lines in the output field.

Claim 11

The video system of claim 8, wherein 0≦c 1 ≦1 and 0≦c 2 ≦1.

Claim 12

The video system of claim 8, wherein the non-uniform interpolation is based on a function: y.sub.i =c.sub.1ik *d.sub.k +c.sub.2ik *d.sub.k+1 +c.sub.3ik *d.sub.k+2 wherein d k+2 represents a third one of the adjacent color space signals and c 3ik represents a third coefficient.

Claim 13

The video system of claim 8, wherein the video signal includes a sequence of interlaced fields and the input frame includes two consecutive fields of the sequence of interlaced fields.

Claim 14

The video system of claim 8, wherein the format of the video signal is selected from the group consisting of: NTSC, PAL, and SECAM.

Claim 15

The video system of claim 8, further comprising: a PLL for generating at least one high-band sync signal from a field sync signal produced by the sync generator, the PLL providing the at least one high-band sync signal to the video circuit.

Claim 16

The video system of claim 8, further comprising: a monitor for displaying an image derived from the plurality of interpolated pixel signals.

Claim 17

The video system of claim 8, wherein the video system is included in a color television receiver.

Claim 18

A color television receiver, comprising: a decoder for generating a plurality of color space signals as a function of a video signal; a memory for storing the plurality of color space signals; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals by performing non-uniform interpolation based on a function y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2, wherein y represents one of the interpolated pixel signals, d 1 and d 2 represent a pair of the color space signals and c 1 and c 2 represent a first and second coefficient; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein the color space signals are transferable from the decoder to the memory as a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the color television receiver is programmable to vary the number of scan lines.

Claim 19

A color television receiver, comprising: a decoder for generating a plurality of color space signals as a function of a video signal; a memory for storing the plurality of color space signals; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals by performing non-uniform interpolation based on a function y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2, wherein y represents one of the interpolated pixel signals, d 1 and d 2 represent a pair of the color space signals and c 1 and c 2 represent a first and second coefficient; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein the color space signals are transferable from the decoder to the memory as a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the color television receiver is programmable to vary the number of scan lines.

Claim 20

The video system of claim 16, wherein the non-uniform interpolation is based on a function: y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2 +c.sub.3 *d.sub.3 wherein d 3 represents a third one of the color space signals and c 3 represents a third coefficient.

Claim 21

The color television receiver of claim 16, wherein the video signal includes a sequence of interlaced fields.

Claim 22

The color television receiver of claim 16, further comprising: a PLL responsive to the sync generator.

Claim 23

The color television receiver of claim 19, wherein the PLL includes a digital PLL.

Claim 24

The color television receiver of claim 16, further comprising: a monitor responsive to the video circuit.

Claim 25

A video system, comprising: a transmitter for broadcasting a video signal to at least one receiver; a receiver for generating an image represented by the video signal, the receiver including: a converter for converting the video signal to a plurality of color space signals; a memory for storing the plurality of color space signals of an input frame; a video circuit, responsive to the memory, the video circuit generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2, wherein y represents one of the interpolated pixel signals, d 1 and d 2 represent a pair of the color space signals and c 1 and c 2 represent a first and second coefficient; a monitor responsive to the interpolated pixel signals, for displaying the image; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein the color space signals are transferable from the converter to the memory as a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the receiver is programmable to vary the number of scan lines.

Claim 26

A video system, comprising: a transmitter for broadcasting a video signal to at least one receiver; a receiver for generating an image represented by the video signal, the receiver including: a converter for converting the video signal to a plurality of color space signals; a memory for storing the plurality of color space signals of an input frame; a video circuit, responsive to the memory, the video circuit generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2, wherein y represents one of the interpolated pixel signals, d 1 and d 2 represent a pair of the color space signals and c 1 and c 2 represent a first and second coefficient; a monitor responsive to the interpolated pixel signals, for displaying the image; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein the color space signals are transferable from the converter to the memory as a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the receiver is programmable to vary the number of scan lines.

Claim 27

The video system of claim 22, wherein the non-uniform interpolation is based on a function: y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2 +c.sub.3 *d.sub.3 wherein d 3 represents a third one of the color space signals and c 3 represents a third coefficient.

Claim 28

The video system of claim 22, wherein the video signal includes a sequence of interlaced fields and the frame includes two fields of the sequence of interlaced fields.

Claim 29

The video system of claim 22, further comprising: a cable connecting the transmitter to the at least one receiver, the cable providing a transmission medium for the video signal.

Claim 30

The video system of claim 22, wherein the transmitter is a television transmitter.

Claim 31

The video system of claim 22, wherein the receiver is a television receiver.

Claim 34

The method recited in claim 28, further comprising the following step: storing in a memory the plurality of adjacent color space signals.

Claim 35

The method recited in claim 29, further comprising the following steps: generating a first signal as a function of the video signal, wherein the adjacent color space signals are communicated to the memory as a function of the first signal.

Claim 36

The method recited in claim 28, further comprising the following step: displaying an image based on the plurality of interpolated pixel signals.

Claim 37

The method recited in claim 28, further comprising the following step: transmitting the video signal to at least one receiver.

Claim 38

A video system, comprising: a converter producing a plurality of color space signals of an input frame in response to a video signal; a sync generator for generating a first signal as a function of the video signal; a memory storing the plurality of color space signals in response to the first signal; and a video circuit, in communication with the memory, generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame and performing non-uniform interpolation based on a function y=c.sub.1 *d.sub.1 +C.sub.2 *d.sub.2, wherein y represents one of the interpolated pixel signals, d 1 and d 2 represent a pair of the color space signals and c 1 and c 2 represent a first and second coefficient, wherein the video system is programmable to vary the number of scan lines.

Claim 39

A video system, comprising: a converter producing a plurality of color space signals of an input frame in response to a video signal; a sync generator for generating a first signal as a function of the video signal; a memory storing the plurality of color space signals in response to the first signal; and a video circuit, in communication with the memory, generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame and performing non-uniform interpolation based on a function y=c.sub.1 *d.sub.1 +C.sub.2 *d.sub.2, wherein y represents one of the interpolated pixel signals, d 1 and d 2 represent a pair of the color space signals and c 1 and c 2 represent a first and second coefficient, wherein the video system is programmable to vary the number of scan lines.

Claim 40

The video system of claim 22, wherein the non-uniform interpolation is based on a function y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2 +c.sub.3 *d.sub.3, wherein d 3 represents a third one of the color space signals and c 3 represents a third coefficient.

Claim 41

The video system of claim 33, wherein the plurality of color space signals represent a plurality of first scan lines of a first field and a second scan line of a second field.

Claim 42

The video system of claim 35, wherein the output frame includes the plurality of first scan lines, the second scan line, and an interpolated scan line comprising the plurality of interpolated pixel signals.

Claim 43

The video system of claim 16, wherein the plurality of color space signals represent a plurality of first scan lines of a first field and a second scan line of a second field.

Claim 44

The video system of claim 37, wherein the video circuit produces an output frame comprising the plurality of first scan lines, the second scan line, and an interpolated scan line comprising the plurality of interpolated pixel signals.

Claim 45

A video system, comprising: a converter for converting a video signal to a plurality of adjacent color space signals; a memory for storing the plurality of adjacent color space signals of an input frame, the memory providing the adjacent color space signals as output; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2, wherein y represents one of the interpolated pixel signals, d 1 and d 2 represent a pair of the adjacent color space signals and c 1 and c 2 represent a first and second coefficient; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein the adjacent color space signals are transferable from the converter to the memory as a function of the first signal and the adjacent color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the number of scan lines in the output frame is selected from the group consisting of: 700 lines per frame, 800 lines per frame, 900 lines per frame, 1000 lines per frame, 1200 lines per frame, and 1920 lines per frame.

Claim 46

A video system, comprising: a converter for converting a video signal to a plurality of adjacent color space signals; a memory for storing the plurality of adjacent color space signals of an input frame, the memory providing the adjacent color space signals as output; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2, wherein y represents one of the interpolated pixel signals, d 1 and d 2 represent a pair of the adjacent color space signals and c 1 and c 2 represent a first and second coefficient; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein the adjacent color space signals are transferable from the converter to the memory as a function of the first signal and the adjacent color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the number of scan lines in the output frame is selected from the group consisting of: 700 lines per frame, 800 lines per frame, 900 lines per frame, 1000 lines per frame, 1200 lines per frame, and 1920 lines per frame.

Claim 47

A video system, comprising: an A/D converter for converting a video signal to a plurality of digital signals; a signal converter, responsive to the plurality of digital signals, for generating a plurality of chrominance signals and a plurality of luminance signals; a decoder for generating a plurality of adjacent color space signals from the pluralities of chrominance and luminance signals; a memory for storing the plurality of adjacent color space signals of an input frame, the memory providing the adjacent color space signals as output; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y.sub.i =c.sub.1ik *d.sub.k +c.sub.2ik *d.sub.k+1 wherein y i represents one of the interpolated pixel signals, d k and d k+1 represent a pair of the adjacent color space signals, c 1ik represents a first coefficient, c 2ik represents a second coefficient, and i and k are integer indices; a color space converter for converting the interpolated pixel signals to a plurality of output signals; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein operations of the A/D converter, the signal converter, the decoder, and the memory are a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the number of scan lines in the output frame is selected from the group consisting of: 700 lines per frame, 800 lines per frame, 900 lines per frame, 1000 lines per frame, 1200 lines per frame, and 1920 lines per frame.

Claim 48

A video system, comprising: an A/D converter for converting a video signal to a plurality of digital signals; a signal converter, responsive to the plurality of digital signals, for generating a plurality of chrominance signals and a plurality of luminance signals; a decoder for generating a plurality of adjacent color space signals from the pluralities of chrominance and luminance signals; a memory for storing the plurality of adjacent color space signals of an input frame, the memory providing the adjacent color space signals as output; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y.sub.i =c.sub.1ik *d.sub.k +c.sub.2ik *d.sub.k+1 wherein y i represents one of the interpolated pixel signals, d k and d k+1 represent a pair of the adjacent color space signals, c 1ik represents a first coefficient, c 2ik represents a second coefficient, and i and k are integer indices; a color space converter for converting the interpolated pixel signals to a plurality of output signals; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein operations of the A/D converter, the signal converter, the decoder, and the memory are a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the number of scan lines in the output frame is selected from the group consisting of: 700 lines per frame, 800 lines per frame, 900 lines per frame, 1000 lines per frame, 1200 lines per frame, and 1920 lines per frame.

Claim 49

A video system, comprising: an A/D converter for converting a video signal to a plurality of digital signals; a signal converter, responsive to the plurality of digital signals, for generating a plurality of chrominance signals and a plurality of luminance signals; a decoder for generating a plurality of adjacent color space signals from the pluralities of chrominance and luminance signals; a memory for storing the plurality of adjacent color space signals of an input frame, the memory providing the adjacent color space signals as output; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y.sub.i =c.sub.1ik *d.sub.k +c.sub.2ik *d.sub.k+1 wherein y i represents one of the interpolated pixel signals, d k and d k+1 represent a pair of the adjacent color space signals, c 1ik represents a first coefficient, c 2ik represents a second coefficient, and i and k are integer indices; a color space converter for converting the interpolated pixel signals to a plurality of output signals; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein operations of the A/D converter, the signal converter, the decoder, and the memory are a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the adjacent color space signals represent color spaces selected from the group consisting of: YIQ, YUV, and RGB.

Claim 50

A video system, comprising: an A/D converter for converting a video signal to a plurality of digital signals; a signal converter, responsive to the plurality of digital signals, for generating a plurality of chrominance signals and a plurality of luminance signals; a decoder for generating a plurality of adjacent color space signals from the pluralities of chrominance and luminance signals; a memory for storing the plurality of adjacent color space signals of an input frame, the memory providing the adjacent color space signals as output; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y.sub.i =c.sub.1ik *d.sub.k +c.sub.2ik *d.sub.k+1 wherein y i represents one of the interpolated pixel signals, d k and d k+1 represent a pair of the adjacent color space signals, c 1ik represents a first coefficient, c 2ik represents a second coefficient, and i and k are integer indices; a color space converter for converting the interpolated pixel signals to a plurality of output signals; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein operations of the A/D converter, the signal converter, the decoder, and the memory are a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the adjacent color space signals represent color spaces selected from the group consisting of: YIQ, YUV, and RGB.

Claim 51

A video system, comprising: an A/D converter for converting a video signal to a plurality of digital signals; a signal converter, responsive to the plurality of digital signals, for generating a plurality of chrominance signals and a plurality of luminance signals; a decoder for generating a plurality of adjacent color space signals from the pluralities of chrominance and luminance signals; a memory for storing the plurality of adjacent color space signals of an input frame, the memory providing the adjacent color space signals as output; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y.sub.i =c.sub.1ik *d.sub.k +c.sub.2ik *d.sub.k+1 wherein y i represents one of the interpolated pixel signals, d k and d k+1 represent a pair of the adjacent color space signals, c 1ik represents a first coefficient, c 2ik represents a second coefficient, and i and k are integer indices; a color space converter for converting the interpolated pixel signals to a plurality of output signals; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein operations of the A/D converter, the signal converter, the decoder, and the memory are a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the output signals are selected from the group consisting of: RGB signals and YCrCb signals.

Claim 52

A video system, comprising: an A/D converter for converting a video signal to a plurality of digital signals; a signal converter, responsive to the plurality of digital signals, for generating a plurality of chrominance signals and a plurality of luminance signals; a decoder for generating a plurality of adjacent color space signals from the pluralities of chrominance and luminance signals; a memory for storing the plurality of adjacent color space signals of an input frame, the memory providing the adjacent color space signals as output; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y.sub.i =c.sub.1ik *d.sub.k +c.sub.2ik *d.sub.k+1 wherein y i represents one of the interpolated pixel signals, d k and d k+1 represent a pair of the adjacent color space signals, c 1ik represents a first coefficient, c 2ik represents a second coefficient, and i and k are integer indices; a color space converter for converting the interpolated pixel signals to a plurality of output signals; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein operations of the A/D converter, the signal converter, the decoder, and the memory are a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the output signals are selected from the group consisting of: RGB signals and YCrCb signals.

Claim 53

A video system, comprising: an A/D converter for converting a video signal to a plurality of digital signals; a signal converter, responsive to the plurality of digital signals, for generating a plurality of chrominance signals and a plurality of luminance signals; a decoder for generating a plurality of adjacent color space signals from the pluralities of chrominance and luminance signals; a memory for storing the plurality of adjacent color space signals of an input frame, the memory providing the adjacent color space signals as output; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y.sub.i =c.sub.1ik *d.sub.k +c.sub.2ik *d.sub.k+1 wherein y i represents one of the interpolated pixel signals, d k and d k+1 represent a pair of the adjacent color space signals, c 1ik represents a first coefficient, c 2ik represents a second coefficient, and i and k are integer indices; a color space converter for converting the interpolated pixel signals to a plurality of output signals; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein operations of the A/D converter, the signal converter, the decoder, and the memory are a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the adjacent color space signals represent color spaces selected from the group consisting of: YIQ, YUV, and RGB.

Claim 54

A video system, comprising: an A/D converter for converting a video signal to a plurality of digital signals; a signal converter, responsive to the plurality of digital signals, for generating a plurality of chrominance signals and a plurality of luminance signals; a decoder for generating a plurality of adjacent color space signals from the pluralities of chrominance and luminance signals; a memory for storing the plurality of adjacent color space signals of an input frame, the memory providing the adjacent color space signals as output; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y.sub.i =c.sub.1ik *d.sub.k +c.sub.2ik *d.sub.k+1 wherein y i represents one of the interpolated pixel signals, d k and d k+1 represent a pair of the adjacent color space signals, c 1ik represents a first coefficient, c 2ik represents a second coefficient, and i and k are integer indices; a color space converter for converting the interpolated pixel signals to a plurality of output signals; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein operations of the A/D converter, the signal converter, the decoder, and the memory are a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the adjacent color space signals represent color spaces selected from the group consisting of: YIQ, YUV, and RGB.

Claim 55

A video system, comprising: an A/D converter for converting a video signal to a plurality of digital signals; a signal converter, responsive to the plurality of digital signals, for generating a plurality of chrominance signals and a plurality of luminance signals; a decoder for generating a plurality of adjacent color space signals from the pluralities of chrominance and luminance signals; a memory for storing the plurality of adjacent color space signals of an input frame, the memory providing the adjacent color space signals as output; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y.sub.i =c.sub.1ik *d.sub.k +c.sub.2ik *d.sub.k+1 wherein y i represents one of the interpolated pixel signals, d k and d k+1 represent a pair of the adjacent color space signals, c 1ik represents a first coefficient, c 2ik represents a second coefficient, and i and k are integer indices; a color space converter for converting the interpolated pixel signals to a plurality of output signals; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein operations of the A/D converter, the signal converter, the decoder, and the memory are a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the output signals are selected from the group consisting of: RGB signals and YCrCb signals.

Claim 56

A video system, comprising: an A/D converter for converting a video signal to a plurality of digital signals; a signal converter, responsive to the plurality of digital signals, for generating a plurality of chrominance signals and a plurality of luminance signals; a decoder for generating a plurality of adjacent color space signals from the pluralities of chrominance and luminance signals; a memory for storing the plurality of adjacent color space signals of an input frame, the memory providing the adjacent color space signals as output; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame by performing non-uniform interpolation based on a function y.sub.i =c.sub.1ik *d.sub.k +c.sub.2ik *d.sub.k+1 wherein y i represents one of the interpolated pixel signals, d k and d k+1 represent a pair of the adjacent color space signals, c 1ik represents a first coefficient, c 2ik represents a second coefficient, and i and k are integer indices; a color space converter for converting the interpolated pixel signals to a plurality of output signals; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein operations of the A/D converter, the signal converter, the decoder, and the memory are a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the output signals are selected from the group consisting of: RGB signals and YCrCb signals.

Claim 57

A color television receiver, comprising: a decoder for generating a plurality of color space signals as a function of a video signal; a memory for storing the plurality of color space signals; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals by performing non-uniform interpolation based on a function y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2, wherein y represents one of the interpolated pixel signals, d 1 and d 2 represent a pair of the color space signals and c 1 and c 2 represent a first and second coefficient; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein the color space signals are transferable from the decoder to the memory as a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the number of scan lines in the output frame is selected from the group consisting of: 700 lines per frame, 800 lines per frame, 900 lines per frame, 1000 lines per frame, 1200 lines per frame, and 1920 lines per frame.

Claim 58

A color television receiver, comprising: a decoder for generating a plurality of color space signals as a function of a video signal; a memory for storing the plurality of color space signals; a video circuit, operatively coupled to the memory, for generating a plurality of interpolated pixel signals by performing non-uniform interpolation based on a function y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2, wherein y represents one of the interpolated pixel signals, d 1 and d 2 represent a pair of the color space signals and c 1 and c 2 represent a first and second coefficient; and a sync generator for generating a first signal and a second signal as a function of the video signal, wherein the color space signals are transferable from the decoder to the memory as a function of the first signal and the color space signals are transferable from the memory to the video circuit as a function of the second signal, wherein the number of scan lines in the output frame is selected from the group consisting of: 700 lines per frame, 800 lines per frame, 900 lines per frame, 1000 lines per frame, 1200 lines per frame, and 1920 lines per frame.

Claim 59

A video system, comprising: a converter producing a plurality of color space signals of an input frame in response to a video signal; a sync generator for generating a first signal as a function of the video signal; a memory storing the plurality of color space signals in response to the first signal; and a video circuit, in communication with the memory, generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame and performing non-uniform interpolation based on a function y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2, wherein y represents one of the interpolated pixel signals, d 1 and d 2 represent a pair of the color space signals and c 1 and c 2 represent a first and second coefficient, wherein the color space signals represent color spaces selected from the group consisting of: YIQ, YUV, and RGB.

Claim 60

A video system, comprising: a converter producing a plurality of color space signals of an input frame in response to a video signal; a sync generator for generating a first signal as a function of the video signal; a memory storing the plurality of color space signals in response to the first signal; and a video circuit, in communication with the memory, generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame and performing non-uniform interpolation based on a function y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2, wherein y represents one of the interpolated pixel signals, d 1 and d 2 represent a pair of the color space signals and c 1 and c 2 represent a first and second coefficient, wherein the color space signals represent color spaces selected from the group consisting of: YIQ, YUV, and RGB.

Claim 61

A video system, comprising: a converter producing a plurality of color space signals of an input frame in response to a video signal; a sync generator for generating a first signal as a function of the video signal; a memory storing the plurality of color space signals in response to the first signal; and a video circuit, in communication with the memory, generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame and performing non-uniform interpolation based on a function y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2, wherein y represents one of the interpolated pixel signals, d 1 and d 2 represent a pair of the color space signals and c 1 and c 2 represent a first and second coefficient, wherein the number of scan lines in the output frame is selected from the group consisting of: 700 lines per frame, 800 lines per frame, 900 lines per frame, 1000 lines per frame, 1200 lines per frame, and 1920 lines per frame.

Claim 62

A video system, comprising: a converter producing a plurality of color space signals of an input frame in response to a video signal; a sync generator for generating a first signal as a function of the video signal; a memory storing the plurality of color space signals in response to the first signal; and a video circuit, in communication with the memory, generating a plurality of interpolated pixel signals of an output frame having a greater number of scan lines than the input frame and performing non-uniform interpolation based on a function y=c.sub.1 *d.sub.1 +c.sub.2 *d.sub.2, wherein y represents one of the interpolated pixel signals, d 1 and d 2 represent a pair of the color space signals and c 1 and c 2 represent a first and second coefficient, wherein the number of scan lines in the output frame is selected from the group consisting of: 700 lines per frame, 800 lines per frame, 900 lines per frame, 1000 lines per frame, 1200 lines per frame, and 1920 lines per frame.