Patent EP0359236A2 successfully refreshed from Google Patents.
EP0359236A2
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EP
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Display control apparatus for converting color/monochromatic CRT gradation into PDP gradation
Assignee: Toshiba Corp
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Filing: 1989-09-13
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Granted: —
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Expires: 2009-09-13
Abstract
Abstract A display control apparatus in a system which is equipped with a plasma display unit (PDP) as a standard I/O device and which can arbitrarily be connected to a monochromatic or color CRT display unit, includes a CRT palette (341) in which gradation or color data is set from a CRT-BIOS, a PDP palette (322) in which PDP gradation data is set, an arithmetic circuit (325) for performing a predetermined arithmetic operation of the color data from the CRT palette and outputting gradation parameters, and a conversion table (321, 326) for storing a correspondence between the PDP gradation data and the CRT gradation data or the gradation parameters. The CRT gradation data set in the CRT palette (341) is converted into PDP gradation data by the conversion table (321) for storing the correspondence between the CRT gradation and the PDP gradation. The color data set in the CRT palette is subjected to a predetermined arithmetic operation by the arithmetic unit (325), thereby generating the gradation parameters. The parameters are converted into the gradation data by the conversion table for storing the correspondence between the CRT gradation parameters and the PDP gradation data. The converted data is set in the PDP palette.
Inventors
- 👤 Hiroki Intellectual Property Division Zenda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 18:15
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/14; G06F3/147; G09; G09G; G09G3/00; G09G3/20; G09G3/22; G09G3/28; G06F3/1423; G06F3/1431; G09G5/00; G09G5/02; G09G5/06; G09G5/36; G09G5/363; G09G5/366; G09G3/2003; G09G3/2007
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
77 words
A display control apparatus having a CRT palette (341) for storing CRT display unit gradation data or color data and a PDP palette (322) for storing plasma display unit (PDP) gradation data in a system having said plasma display unit (40), characterized in that there is provided: PDP gradation generating means (321, 325, 326) for generating the plasma display unit gradation data from the CRT display unit gradation data or color data set in said CRT palette.
Claim 2
Dependent Claim
77 words
A display control apparatus having a CRT palette (341) for storing CRT display unit gradation data or color data and a PDP palette (322) for storing plasma display unit (PDP) gradation data in a system having said plasma display unit (40), characterized in that there is provided: PDP gradation generating means (321, 325, 326) for generating the plasma display unit gradation data from the CRT display unit gradation data or color data set in said CRT palette.
Claim 3
Dependent Claim
39 words
An apparatus according to claim 1, characterized in that said PDP gradation data generating means comprises a conversion table for storing a correspondence between the CRT display unit (50) gradation data and the plasma display unit (40) gradation data.
Claim 4
Dependent Claim
75 words
An apparatus according to claim 2, characterized in that said system having said plasma display unit comprises a basic input and output system program (BIOS) (20) for storing a correspondence between the CRT display unit gradation data and the plasma display unit gradation data, and means (11) for setting the correspondence between the CRT display unit gradation data and the plasma display unit gradation data from said BIOS to said conversion table upon system setup.
Claim 5
Dependent Claim
28 words
An apparatus according to claim 2, characterized in that said conversion table is read/write accessible and comprises means (11) for arbitrarily changing a content of said conversion table.
Claim 6
Dependent Claim
53 words
An apparatus according to claim 1, characterized by further comprising palette data setting means (311, 323) for, in synchronism with setting of the CRT display unit gradation data in said CRT palette means, setting the plasma display unit gradation data generated by said PDP gradation data generating means in said PDP palette means.
Claim 7
Independent Claim
45 words
An apparatus according to any one of claims 1 to 5, characterized in that said system having said plasma display unit is connected to a monochromatic CRT display unit, and data is simultaneously displayed on said plasma display unit and said monochromatic CRT display unit.
Claim 8
Dependent Claim
65 words
An apparatus according to claim 1, characterized in that said PDP gradation data generating means comprises: arithmetic means (325) for performing a predetermined arithmetic operation of the CRT display unit color data and outputting a predetermined number of gradation parameters; and a conversion table (326) for storing a correspondence between the gradation parameters supplied from said arithmetic means and the plasma display unit gradation data.
Claim 9
Independent Claim
48 words
An apparatus according to claims 1, 2, 3, 4, 5, and 7, characterized in that said system having said plasma display unit is further connected to a color CRT display unit (51), and data is simultaneously displayed on said plasma display unit and said color CRT display unit.
Claim 10
Dependent Claim
119 words
An apparatus according to claim 7, characterized in that said system having said plasma display unit is further connected to a monochromatic or color CRT display unit, and comprises selecting means (328) for receiving the gradation data from said CRT palette or the gradation parameters from said arithmetic means, for outputting the gradation data when said monochromatic CRT display unit is connected, and for outputting the gradation parameters when said color CRT display unit is connected, and said PDP gradation data generating means generates the plasma display unit gradation data on the basis of the gradation data or the gradation parameter output from said PDP gradation data generating means and for outputting the generated data to said PDP palette.
Claim 11
Dependent Claim
208 words
A display control LSI (60) constituted by highly integrated semiconductor elements, comprising: a CRT palette (341, 343) in which monochromatic CRT display unit gradation data or color CRT display unit color data is set; a PDP palette (322) in which plasma display unit (PDP) gradation data is set; arithmetic means (325) for performing a predetermined arithmetic operation of the color data set in said CRT palette and outputting a gradation parameter; selecting means (328) for receiving the gradation data from said CRT palette or the gradation parameter from said arithmetic means, for outputting the gradation data when said monochromatic CRT display unit is connected, and for outputting the gradation parameter when said color CRT display unit is connected; a conversion table (321, 326) for storing a correspondence between the plasma display unit gradation data and the CRT display unit gradation data from said CRT palette or the gradation parameter from said arithmetic means and outputting the plasma display unit gradation data on the basis of the gradation data or parameter output from said selecting means; first output means (71) for outputting the gradation data or the color data set in said CRT palette; and second output means (72) for outputting the gradation data set in said PDP palette.
Claim 12
Dependent Claim
208 words
A display control LSI (60) constituted by highly integrated semiconductor elements, comprising: a CRT palette (341, 343) in which monochromatic CRT display unit gradation data or color CRT display unit color data is set; a PDP palette (322) in which plasma display unit (PDP) gradation data is set; arithmetic means (325) for performing a predetermined arithmetic operation of the color data set in said CRT palette and outputting a gradation parameter; selecting means (328) for receiving the gradation data from said CRT palette or the gradation parameter from said arithmetic means, for outputting the gradation data when said monochromatic CRT display unit is connected, and for outputting the gradation parameter when said color CRT display unit is connected; a conversion table (321, 326) for storing a correspondence between the plasma display unit gradation data and the CRT display unit gradation data from said CRT palette or the gradation parameter from said arithmetic means and outputting the plasma display unit gradation data on the basis of the gradation data or parameter output from said selecting means; first output means (71) for outputting the gradation data or the color data set in said CRT palette; and second output means (72) for outputting the gradation data set in said PDP palette.
Claim 13
Dependent Claim
156 words
A display control LSI (60) constituted by highly integrated semiconductor elements, comprising: a CRT palette (341, 343) in which monochromatic CRT display unit gradation data or color CRT display unit color data is set; arithmetic means (325) for performing a predetermined arithmetic operation of the color data set in said CRT palette and outputting a gradation parameter; selecting means (328) for receiving the gradation data from said CRT palette or the gradation parameter from said arithmetic means, for outputting the gradation data when said monochromatic CRT display unit is connected, and for outputting the gradation parameter when said color CRT display unit is connected; first output means (71) for outputting the gradation data or the color data set in said CRT palette; and second output means (72) for outputting the CRT display unit gradation data set in said CRT palette or the plasma display unit gradation data corresponding to the gradation parameter from said arithmetic means.
Claim 14
Dependent Claim
156 words
A display control LSI (60) constituted by highly integrated semiconductor elements, comprising: a CRT palette (341, 343) in which monochromatic CRT display unit gradation data or color CRT display unit color data is set; arithmetic means (325) for performing a predetermined arithmetic operation of the color data set in said CRT palette and outputting a gradation parameter; selecting means (328) for receiving the gradation data from said CRT palette or the gradation parameter from said arithmetic means, for outputting the gradation data when said monochromatic CRT display unit is connected, and for outputting the gradation parameter when said color CRT display unit is connected; first output means (71) for outputting the gradation data or the color data set in said CRT palette; and second output means (72) for outputting the CRT display unit gradation data set in said CRT palette or the plasma display unit gradation data corresponding to the gradation parameter from said arithmetic means.
References Cited (Backward Citations)
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