Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
85 words
A display system comprising a bit map for storing source data for an image pixel, a palette containing data for controlling pixel colour on screen, logic for addressing the palette, wherein the palette is a universal palette divided into sub-palettes, at least one sub-palette containing data for controlling pixel colour for display anywhere on screen (4), said data corresponding to shades of dominantly one colour, wherein the data within said sub-palette are addressed via an index generated from an associated portion of the source data.
Claim 2
Dependent Claim
85 words
A display system comprising a bit map for storing source data for an image pixel, a palette containing data for controlling pixel colour on screen, logic for addressing the palette, wherein the palette is a universal palette divided into sub-palettes, at least one sub-palette containing data for controlling pixel colour for display anywhere on screen (4), said data corresponding to shades of dominantly one colour, wherein the data within said sub-palette are addressed via an index generated from an associated portion of the source data.
Claim 3
Dependent Claim
51 words
A display system as claimed in Claim 1, in which image pixels are grouped to form a macro-pixel (M), wherein the portion of source data utilised to generate the index to address a sub-palette and the sub-palette addressed are dependent on the position of the image pixel within the macro-pixel (M).
Claim 4
Dependent Claim
26 words
A display system as claimed in either of the preceding claims, wherein the source data includes red (r), green (g) and blue (b) colour component data.
Claim 5
Dependent Claim
57 words
A display system as claimed in any of the preceding claims, wherein the palette is divided into a first, a second, a third and a fourth sub-palette, the first sub-palette for storing red colour data, the second for storing green colour data, the third for storing blue colour data, and the fourth for storing grey colour data.
Claim 6
Dependent Claim
78 words
A display system as claimed in claim 4 when dependent on claim 3, including logic (1) for selecting colour component data to be supplied to index generation logic (2) such that the red colour component source data is utilised to address the sub-palette storing dominantly red colour data, blue colour component source data to address the sub-palette storing dominantly blue colour data and the green colour component source data to address the sub-palette storing dominantly green colour data.
Claim 7
Dependent Claim
22 words
A display system as claimed in Claim 1, in which all source data are utilised to generate the index to the sub-palette.
Claim 8
Dependent Claim
15 words
A display system as claimed in Claim 6 wherein the sub-palette contains grey colour data.
Claim 9
Dependent Claim
21 words
A display system as claimed in any of the preceding claims, wherein the colour data stored within a sub-palette are desaturated.
Claim 10
Independent Claim
50 words
A method for processing image pixel data wherein a palette is divided into sub-palettes, at least one sub-palette containing data for controlling pixel colour anywhere on screen, said data corresponding to shades of dominantly one colour, wherein the sub-palette is accessed by an associated portion of image pixel source data.
Claim 11
Independent Claim
50 words
A method for processing image pixel data wherein a palette is divided into sub-palettes, at least one sub-palette containing data for controlling pixel colour anywhere on screen, said data corresponding to shades of dominantly one colour, wherein the sub-palette is accessed by an associated portion of image pixel source data.
Claim 12
Dependent Claim
37 words
A method as claimed in Claim 7, in which the portion of the source data utilised to address a sub-palette, and the sub-palette addressed, are dependent on the position of the image pixel when displayed on screen.